Ejemplo n.º 1
0
def player(rec_dir, ipc_pub_url, ipc_sub_url,
           ipc_push_url, user_dir, app_version):
    # general imports
    from time import sleep
    import logging
    from glob import glob
    from time import time, strftime, localtime
    # networking
    import zmq
    import zmq_tools

    import numpy as np

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('notify',))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    try:

        # imports
        from file_methods import Persistent_Dict, load_object, next_export_sub_dir

        # display
        import glfw
        # check versions for our own depedencies as they are fast-changing
        from pyglui import __version__ as pyglui_version

        from pyglui import ui, cygl
        from pyglui.cygl.utils import Named_Texture, RGBA
        import gl_utils
        # capture
        from video_capture import init_playback_source, EndofVideoError

        # helpers/utils
        from version_utils import VersionFormat
        from methods import normalize, denormalize, delta_t, get_system_info
        from player_methods import correlate_data, is_pupil_rec_dir, load_meta_info
        from csv_utils import write_key_value_file

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from plugin_manager import Plugin_Manager
        from vis_circle import Vis_Circle
        from vis_cross import Vis_Cross
        from vis_polyline import Vis_Polyline
        from vis_light_points import Vis_Light_Points
        from vis_watermark import Vis_Watermark
        from vis_fixation import Vis_Fixation
        from vis_scan_path import Vis_Scan_Path
        from vis_eye_video_overlay import Vis_Eye_Video_Overlay
        from seek_control import Seek_Control
        from video_export_launcher import Video_Export_Launcher
        from offline_surface_tracker import Offline_Surface_Tracker
        # from marker_auto_trim_marks import Marker_Auto_Trim_Marks
        from fixation_detector import Offline_Fixation_Detector
        from batch_exporter import Batch_Exporter, Batch_Export
        from log_display import Log_Display
        from annotations import Annotation_Player
        from raw_data_exporter import Raw_Data_Exporter
        from log_history import Log_History
        from pupil_producers import Pupil_From_Recording, Offline_Pupil_Detection
        from gaze_producers import Gaze_From_Recording, Offline_Calibration
        from system_graphs import System_Graphs
        from system_timelines import System_Timelines
        from blink_detection import Offline_Blink_Detection
        from audio_playback import Audio_Playback
        from imotions_exporter import iMotions_Exporter

        assert VersionFormat(pyglui_version) >= VersionFormat('1.20'), 'pyglui out of date, please upgrade to newest version'

        runtime_plugins = import_runtime_plugins(os.path.join(user_dir, 'plugins'))
        system_plugins = [Log_Display, Seek_Control, Plugin_Manager, System_Graphs, Batch_Export, System_Timelines, Audio_Playback]
        user_plugins = [Vis_Circle,
                        Vis_Fixation,
                        Vis_Polyline,
                        Vis_Light_Points,
                        Vis_Cross,
                        Vis_Watermark,
                        Vis_Eye_Video_Overlay,
                        Vis_Scan_Path,
                        Offline_Fixation_Detector,
                        Offline_Blink_Detection,
                        Batch_Exporter,
                        Video_Export_Launcher,
                        Offline_Surface_Tracker,
                        Raw_Data_Exporter,
                        Annotation_Player,
                        Log_History,
                        Pupil_From_Recording,
                        Offline_Pupil_Detection,
                        Gaze_From_Recording,
                        iMotions_Exporter,
                        Offline_Calibration
                        ] + runtime_plugins

        plugins = system_plugins + user_plugins

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal hdpi_factor

            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            g_pool.camera_render_size = w-int(icon_bar_width*g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()
            for p in g_pool.plugins:
                p.on_window_resize(window, *g_pool.camera_render_size)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = x * hdpi_factor, y * hdpi_factor
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, g_pool.camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y*scroll_factor)

        def on_drop(window, count, paths):
            for x in range(count):
                new_rec_dir = paths[x].decode('utf-8')
                if is_pupil_rec_dir(new_rec_dir):
                    logger.debug("Starting new session with '{}'".format(new_rec_dir))
                    ipc_pub.notify({"subject": "player_drop_process.should_start", "rec_dir": new_rec_dir})
                    glfw.glfwSetWindowShouldClose(window, True)
                else:
                    logger.error("'{}' is not a valid pupil recording".format(new_rec_dir))

        tick = delta_t()

        def get_dt():
            return next(tick)

        pupil_data_path = os.path.join(rec_dir, "pupil_data")

        meta_info = load_meta_info(rec_dir)

        # log info about Pupil Platform and Platform in player.log
        logger.info('Application Version: {}'.format(app_version))
        logger.info('System Info: {}'.format(get_system_info()))

        icon_bar_width = 50
        window_size = None
        hdpi_factor = 1.0

        # create container for globally scoped vars
        g_pool = Global_Container()
        g_pool.app = 'player'
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}
        g_pool.camera_render_size = None

        valid_ext = ('.mp4', '.mkv', '.avi', '.h264', '.mjpeg', '.fake')
        video_path = [f for f in glob(os.path.join(rec_dir, "world.*"))
                      if os.path.splitext(f)[1] in valid_ext][0]
        init_playback_source(g_pool, timing='external', source_path=video_path)

        # load session persistent settings
        session_settings = Persistent_Dict(os.path.join(user_dir, "user_settings_player"))
        if VersionFormat(session_settings.get("version", '0.0')) != app_version:
            logger.info("Session setting are a different version of this app. I will not use those.")
            session_settings.clear()

        width, height = g_pool.capture.frame_size
        width += icon_bar_width
        width, height = session_settings.get('window_size', (width, height))

        window_pos = session_settings.get('window_position', window_position_default)
        window_name = "Pupil Player: {} - {}".format(meta_info["Recording Name"],
                                                     os.path.split(rec_dir)[-1])

        glfw.glfwInit()
        main_window = glfw.glfwCreateWindow(width, height, window_name, None, None)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            window_size = (g_pool.camera_render_size[0] + int(icon_bar_width*g_pool.gui_user_scale*hdpi_factor),
                           glfw.glfwGetFramebufferSize(main_window)[1])
            logger.warning(icon_bar_width*g_pool.gui_user_scale*hdpi_factor)
            glfw.glfwSetWindowSize(main_window, *window_size)

        # load pupil_positions, gaze_positions
        g_pool.pupil_data = load_object(pupil_data_path)
        g_pool.binocular = meta_info.get('Eye Mode', 'monocular') == 'binocular'
        g_pool.version = app_version
        g_pool.timestamps = g_pool.capture.timestamps
        g_pool.get_timestamp = lambda: 0.
        g_pool.user_dir = user_dir
        g_pool.rec_dir = rec_dir
        g_pool.meta_info = meta_info
        g_pool.min_data_confidence = session_settings.get('min_data_confidence', 0.6)
        g_pool.min_calibration_confidence = session_settings.get('min_calibration_confidence', 0.8)

        g_pool.pupil_positions = []
        g_pool.gaze_positions = []
        g_pool.fixations = []

        g_pool.notifications_by_frame = correlate_data(g_pool.pupil_data['notifications'], g_pool.timestamps)
        g_pool.pupil_positions_by_frame = [[] for x in g_pool.timestamps]  # populated by producer`
        g_pool.gaze_positions_by_frame = [[] for x in g_pool.timestamps]  # populated by producer
        g_pool.fixations_by_frame = [[] for x in g_pool.timestamps]  # populated by the fixation detector plugin

        def set_data_confidence(new_confidence):
            g_pool.min_data_confidence = new_confidence
            notification = {'subject': 'min_data_confidence_changed'}
            notification['_notify_time_'] = time()+.8
            g_pool.ipc_pub.notify(notification)

        def open_plugin(plugin):
            if plugin == "Select to load":
                return
            g_pool.plugins.add(plugin)

        def purge_plugins():
            for p in g_pool.plugins:
                if p.__class__ in user_plugins:
                    p.alive = False
            g_pool.plugins.clean()

        def do_export(_):
            left_idx = g_pool.seek_control.trim_left
            right_idx = g_pool.seek_control.trim_right
            export_range = left_idx, right_idx + 1  # exclusive range.stop

            export_dir = os.path.join(g_pool.rec_dir, 'exports')
            export_dir = next_export_sub_dir(export_dir)

            os.makedirs(export_dir)
            logger.info('Created export dir at "{}"'.format(export_dir))

            export_info = {'Player Software Version': str(g_pool.version),
                           'Data Format Version': meta_info['Data Format Version'],
                           'Export Date': strftime("%d.%m.%Y", localtime()),
                           'Export Time': strftime("%H:%M:%S", localtime()),
                           'Frame Index Range:': g_pool.seek_control.get_frame_index_trim_range_string(),
                           'Relative Time Range': g_pool.seek_control.get_rel_time_trim_range_string(),
                           'Absolute Time Range': g_pool.seek_control.get_abs_time_trim_range_string()}
            with open(os.path.join(export_dir, 'export_info.csv'), 'w') as csv:
                write_key_value_file(csv, export_info)

            notification = {'subject': 'should_export', 'range': export_range, 'export_dir': export_dir}
            g_pool.ipc_pub.notify(notification)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Player.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({'subject': 'clear_settings_process.should_start'})
            ipc_pub.notify({'subject': 'player_process.should_start', 'rec_dir': rec_dir, 'delay': 2.})

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
        g_pool.menubar = ui.Scrolling_Menu("Settings", pos=(-500, 0), size=(-icon_bar_width, 0), header_pos='left')
        g_pool.iconbar = ui.Scrolling_Menu("Icons", pos=(-icon_bar_width, 0), size=(0, 0), header_pos='hidden')
        g_pool.timelines = ui.Container((0, 0), (0, 0), (0, 0))
        g_pool.timelines.horizontal_constraint = g_pool.menubar
        g_pool.user_timelines = ui.Timeline_Menu('User Timelines', pos=(0., -150.),
                                                 size=(0., 0.), header_pos='headline')
        g_pool.user_timelines.color = RGBA(a=0.)
        g_pool.user_timelines.collapsed = True
        # add container that constaints itself to the seekbar height
        vert_constr = ui.Container((0, 0), (0, -50.), (0, 0))
        vert_constr.append(g_pool.user_timelines)
        g_pool.timelines.append(vert_constr)

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width += int(icon_bar_width * g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)

        general_settings = ui.Growing_Menu('General', header_pos='headline')
        general_settings.append(ui.Button('Reset window size', set_window_size))
        general_settings.append(ui.Selector('gui_user_scale', g_pool, setter=set_scale, selection=[.8, .9, 1., 1.1, 1.2]+list(np.arange(1.5, 5.1, .5)), label='Interface Size'))
        general_settings.append(ui.Info_Text('Player Version: {}'.format(g_pool.version)))
        general_settings.append(ui.Info_Text('Capture Version: {}'.format(meta_info['Capture Software Version'])))
        general_settings.append(ui.Info_Text('Data Format Version: {}'.format(meta_info['Data Format Version'])))

        general_settings.append(ui.Info_Text('High level data, e.g. fixations, or visualizations only consider gaze data that has an equal or higher confidence than the minimum data confidence.'))
        general_settings.append(ui.Slider('min_data_confidence', g_pool,
                                          setter=set_data_confidence,
                                          step=.05, min=0.0, max=1.0,
                                          label='Minimum data confidence'))

        general_settings.append(ui.Button('Restart with default settings', reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon('collapsed', general_settings, label=chr(0xe8b8), on_val=False, off_val=True, setter=toggle_general_settings, label_font='pupil_icons')
        icon.tooltip = 'General Settings'
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100), (100, -100))
        g_pool.export_button = ui.Thumb('export',
                                        label=chr(0xe2c5),
                                        getter=lambda: False,
                                        setter=do_export,
                                        hotkey='e',
                                        label_font='pupil_icons')
        g_pool.quickbar.extend([g_pool.export_button])
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.timelines)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        # we always load these plugins
        default_plugins = [('Plugin_Manager', {}),
                           ('Seek_Control', {}),
                           ('Log_Display', {}),
                           ('Raw_Data_Exporter', {}),
                           ('Vis_Polyline', {}),
                           ('Vis_Circle', {}),
                           ('System_Graphs', {}),
                           ('System_Timelines', {}),
                           ('Video_Export_Launcher', {}),
                           ('Pupil_From_Recording', {}),
                           ('Gaze_From_Recording', {}),
                           ('Audio_Playback', {})]

        g_pool.plugins = Plugin_List(g_pool, session_settings.get('loaded_plugins', default_plugins))

        # Manually add g_pool.capture to the plugin list
        g_pool.plugins._plugins.append(g_pool.capture)
        g_pool.plugins._plugins.sort(key=lambda p: p.order)
        g_pool.capture.init_ui()

        general_settings.insert(-1, ui.Text_Input('rel_time_trim_section',
                                                  getter=g_pool.seek_control.get_rel_time_trim_range_string,
                                                  setter=g_pool.seek_control.set_rel_time_trim_range_string,
                                                  label='Relative time range to export'))
        general_settings.insert(-1, ui.Text_Input('frame_idx_trim_section',
                                                  getter=g_pool.seek_control.get_frame_index_trim_range_string,
                                                  setter=g_pool.seek_control.set_frame_index_trim_range_string,
                                                  label='Frame index range to export'))

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        toggle_general_settings(True)

        g_pool.gui.configuration = session_settings.get('ui_config', {})

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        # trigger on_resize
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        def handle_notifications(n):
            subject = n['subject']
            if subject == 'start_plugin':
                g_pool.plugins.add(
                    g_pool.plugin_by_name[n['name']], args=n.get('args', {}))
            elif subject.startswith('meta.should_doc'):
                ipc_pub.notify({'subject': 'meta.doc',
                                'actor': g_pool.app,
                                'doc': player.__doc__})
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({'subject': 'meta.doc',
                                        'actor': p.class_name,
                                        'doc': p.on_notify.__doc__})

        while not glfw.glfwWindowShouldClose(main_window):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            events = {}
            # report time between now and the last loop interation
            events['dt'] = get_dt()

            # pupil and gaze positions are added by their respective producer plugins
            events['pupil_positions'] = []
            events['gaze_positions'] = []

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            glfw.glfwMakeContextCurrent(main_window)
            # render visual feedback from loaded plugins
            if gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *g_pool.camera_render_size)
                g_pool.capture.gl_display()
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)

                try:
                    clipboard = glfw.glfwGetClipboardString(main_window).decode()
                except AttributeError:  # clipbaord is None, might happen on startup
                    clipboard = ''
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard and user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.glfwSetClipboardString(main_window, user_input.clipboard.encode())

                for b in user_input.buttons:
                    button, action, mods = b
                    x, y = glfw.glfwGetCursorPos(main_window)
                    pos = x * hdpi_factor, y * hdpi_factor
                    pos = normalize(pos, g_pool.camera_render_size)
                    pos = denormalize(pos, g_pool.capture.frame_size)
                    for p in g_pool.plugins:
                        p.on_click(pos, button, action)

                for key, scancode, action, mods in user_input.keys:
                    for p in g_pool.plugins:
                        p.on_key(key, scancode, action, mods)

                for char_ in user_input.chars:
                    for p in g_pool.plugins:
                        p.on_char(char_)

                # present frames at appropriate speed
                g_pool.seek_control.wait(events['frame'].timestamp)
                glfw.glfwSwapBuffers(main_window)

            glfw.glfwPollEvents()

        session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
        session_settings['min_data_confidence'] = g_pool.min_data_confidence
        session_settings['min_calibration_confidence'] = g_pool.min_calibration_confidence
        session_settings['gui_scale'] = g_pool.gui_user_scale
        session_settings['ui_config'] = g_pool.gui.configuration
        session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
        session_settings['version'] = str(g_pool.version)

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            session_settings['window_size'] = session_window_size

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.capture.cleanup()
        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)

    except:
        import traceback
        trace = traceback.format_exc()
        logger.error('Process Player crashed with trace:\n{}'.format(trace))
    finally:
        logger.info("Process shutting down.")
        ipc_pub.notify({'subject': 'player_process.stopped'})
        sleep(1.0)
Ejemplo n.º 2
0
def eye(
    timebase,
    is_alive_flag,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    eye_id,
    overwrite_cap_settings=None,
):
    """reads eye video and detects the pupil.

    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates.

    Reacts to notifications:
       ``set_detection_mapping_mode``: Sets detection method
       ``eye_process.should_stop``: Stops the eye process
       ``recording.started``: Starts recording eye video
       ``recording.stopped``: Stops recording eye video
       ``frame_publishing.started``: Starts frame publishing
       ``frame_publishing.stopped``: Stops frame publishing

    Emits notifications:
        ``eye_process.started``: Eye process started
        ``eye_process.stopped``: Eye process stopped

    Emits data:
        ``pupil.<eye id>``: Pupil data for eye with id ``<eye id>``
        ``frame.eye.<eye id>``: Eye frames with id ``<eye id>``
    """

    # We deferr the imports becasue of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    import zmq
    import zmq_tools

    zmq_ctx = zmq.Context()
    ipc_socket = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    pupil_socket = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    # logging setup
    import logging

    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    if is_alive_flag.value:
        # indicates eye process that this is a duplicated startup
        logger.warning("Aborting redundant eye process startup")
        return

    with Is_Alive_Manager(is_alive_flag, ipc_socket, eye_id, logger):
        # general imports
        import traceback
        import numpy as np
        import cv2

        # display
        import glfw
        from pyglui import ui, graph, cygl
        from pyglui.cygl.utils import draw_points, RGBA, draw_polyline
        from pyglui.cygl.utils import Named_Texture
        from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen
        from gl_utils import make_coord_system_pixel_based
        from gl_utils import make_coord_system_norm_based
        from gl_utils import is_window_visible, glViewport
        from ui_roi import UIRoi

        # monitoring
        import psutil

        # helpers/utils
        from uvc import get_time_monotonic
        from file_methods import Persistent_Dict
        from version_utils import VersionFormat
        from methods import normalize, denormalize, timer
        from av_writer import JPEG_Writer, AV_Writer
        from ndsi import H264Writer
        from video_capture import source_classes
        from video_capture import manager_classes

        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        # Pupil detectors
        from pupil_detectors import Detector_2D, Detector_3D, Detector_Dummy

        pupil_detectors = {
            Detector_2D.__name__: Detector_2D,
            Detector_3D.__name__: Detector_3D,
            Detector_Dummy.__name__: Detector_Dummy,
        }

        # UI Platform tweaks
        if platform.system() == "Linux":
            scroll_factor = 10.0
            window_position_default = (600, 300 * eye_id + 30)
        elif platform.system() == "Windows":
            scroll_factor = 10.0
            window_position_default = (600, 90 + 300 * eye_id)
        else:
            scroll_factor = 1.0
            window_position_default = (600, 300 * eye_id)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None
        hdpi_factor = 1.0

        # g_pool holds variables for this process
        g_pool = SimpleNamespace()

        # make some constants avaiable
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.app = "capture"
        g_pool.process = "eye{}".format(eye_id)
        g_pool.timebase = timebase

        g_pool.ipc_pub = ipc_socket

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size
            nonlocal hdpi_factor

            active_window = glfw.glfwGetCurrentContext()
            glfw.glfwMakeContextCurrent(window)
            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            camera_render_size = w - int(icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = hdpi_factor
                g.adjust_window_size(w, h)
            adjust_gl_view(w, h)
            glfw.glfwMakeContextCurrent(active_window)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_iconify(window, iconified):
            g_pool.iconified = iconified

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x *= hdpi_factor
            y *= hdpi_factor
            g_pool.gui.update_mouse(x, y)

            if g_pool.u_r.active_edit_pt:
                pos = normalize((x, y), camera_render_size)
                if g_pool.flip:
                    pos = 1 - pos[0], 1 - pos[1]
                pos = denormalize(pos, g_pool.capture.frame_size)
                g_pool.u_r.move_vertex(g_pool.u_r.active_pt_idx, pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode("utf-8") for x in range(count)]
            plugins = (g_pool.capture_manager, g_pool.capture)
            # call `on_drop` callbacks until a plugin indicates
            # that it has consumed the event (by returning True)
            any(p.on_drop(paths) for p in plugins)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir,
                         "user_settings_eye{}".format(eye_id)))
        if VersionFormat(session_settings.get("version",
                                              "0.0")) != g_pool.version:
            logger.info(
                "Session setting are from a different version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.iconified = False
        g_pool.capture = None
        g_pool.capture_manager = None
        g_pool.flip = session_settings.get("flip", False)
        g_pool.display_mode = session_settings.get("display_mode",
                                                   "camera_image")
        g_pool.display_mode_info_text = {
            "camera_image":
            "Raw eye camera image. This uses the least amount of CPU power",
            "roi":
            "Click and drag on the blue circles to adjust the region of interest. The region should be as small as possible, but large enough to capture all pupil movements.",
            "algorithm":
            "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters within the Pupil Detection menu below.",
        }

        capture_manager_settings = session_settings.get(
            "capture_manager_settings", ("UVC_Manager", {}))

        manager_class_name, manager_settings = capture_manager_settings
        manager_class_by_name = {c.__name__: c for c in manager_classes}
        g_pool.capture_manager = manager_class_by_name[manager_class_name](
            g_pool, **manager_settings)

        if eye_id == 0:
            cap_src = [
                "Pupil Cam3 ID0", "Pupil Cam2 ID0", "Pupil Cam1 ID0", "HD-6000"
            ]
        else:
            cap_src = ["Pupil Cam3 ID1", "Pupil Cam2 ID1", "Pupil Cam1 ID1"]

        # Initialize capture
        default_settings = (
            "UVC_Source",
            {
                "preferred_names": cap_src,
                "frame_size": (320, 240),
                "frame_rate": 120
            },
        )

        capture_source_settings = overwrite_cap_settings or session_settings.get(
            "capture_settings", default_settings)
        source_class_name, source_settings = capture_source_settings
        source_class_by_name = {c.__name__: c for c in source_classes}
        g_pool.capture = source_class_by_name[source_class_name](
            g_pool, **source_settings)
        assert g_pool.capture

        g_pool.u_r = UIRoi(
            (g_pool.capture.frame_size[1], g_pool.capture.frame_size[0]))
        roi_user_settings = session_settings.get("roi")
        if roi_user_settings and tuple(
                roi_user_settings[-1]) == g_pool.u_r.get()[-1]:
            g_pool.u_r.set(roi_user_settings)

        pupil_detector_settings = session_settings.get(
            "pupil_detector_settings", None)
        last_pupil_detector = pupil_detectors[session_settings.get(
            "last_pupil_detector", Detector_2D.__name__)]
        g_pool.pupil_detector = last_pupil_detector(g_pool,
                                                    pupil_detector_settings)

        def set_display_mode_info(val):
            g_pool.display_mode = val
            g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

        def set_detector(new_detector):
            g_pool.pupil_detector.deinit_ui()
            g_pool.pupil_detector.cleanup()
            g_pool.pupil_detector = new_detector(g_pool)
            g_pool.pupil_detector.init_ui()

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # Initialize glfw
        glfw.glfwInit()
        title = "Pupil Capture - eye {}".format(eye_id)

        width, height = g_pool.capture.frame_size
        width *= 2
        height *= 2
        width += icon_bar_width
        width, height = session_settings.get("window_size", (width, height))

        main_window = glfw.glfwCreateWindow(width, height, title, None, None)
        window_pos = session_settings.get("window_position",
                                          window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()

        # UI callback functions
        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        # gl_state settings
        basic_gl_setup()
        g_pool.image_tex = Named_Texture()
        g_pool.image_tex.update_from_ndarray(
            np.ones((1, 1), dtype=np.uint8) + 125)

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get("gui_scale", 1.0)
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-500, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos="left")
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos="hidden")
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)

        general_settings = ui.Growing_Menu("General", header_pos="headline")
        general_settings.append(
            ui.Selector(
                "gui_user_scale",
                g_pool,
                setter=set_scale,
                selection=[0.8, 0.9, 1.0, 1.1, 1.2],
                label="Interface Size",
            ))

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width *= 2
            f_height *= 2
            f_width += int(icon_bar_width * g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)

        def uroi_on_mouse_button(button, action, mods):
            if g_pool.display_mode == "roi":
                if action == glfw.GLFW_RELEASE and g_pool.u_r.active_edit_pt:
                    g_pool.u_r.active_edit_pt = False
                    # if the roi interacts we dont want
                    # the gui to interact as well
                    return
                elif action == glfw.GLFW_PRESS:
                    x, y = glfw.glfwGetCursorPos(main_window)
                    # pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
                    x *= hdpi_factor
                    y *= hdpi_factor
                    pos = normalize((x, y), camera_render_size)
                    if g_pool.flip:
                        pos = 1 - pos[0], 1 - pos[1]
                    # Position in img pixels
                    pos = denormalize(
                        pos,
                        g_pool.capture.frame_size)  # Position in img pixels
                    if g_pool.u_r.mouse_over_edit_pt(pos,
                                                     g_pool.u_r.handle_size,
                                                     g_pool.u_r.handle_size):
                        # if the roi interacts we dont want
                        # the gui to interact as well
                        return

        general_settings.append(ui.Button("Reset window size",
                                          set_window_size))
        general_settings.append(
            ui.Switch("flip", g_pool, label="Flip image display"))
        general_settings.append(
            ui.Selector(
                "display_mode",
                g_pool,
                setter=set_display_mode_info,
                selection=["camera_image", "roi", "algorithm"],
                labels=["Camera Image", "ROI", "Algorithm"],
                label="Mode",
            ))
        g_pool.display_mode_info = ui.Info_Text(
            g_pool.display_mode_info_text[g_pool.display_mode])

        general_settings.append(g_pool.display_mode_info)

        detector_selector = ui.Selector(
            "pupil_detector",
            getter=lambda: g_pool.pupil_detector.__class__,
            setter=set_detector,
            selection=[Detector_Dummy, Detector_2D, Detector_3D],
            labels=["disabled", "C++ 2d detector", "C++ 3d detector"],
            label="Detection method",
        )
        general_settings.append(detector_selector)

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)
        toggle_general_settings(False)

        g_pool.pupil_detector.init_ui()
        g_pool.capture.init_ui()
        g_pool.capture_manager.init_ui()
        g_pool.writer = None

        def replace_source(source_class_name, source_settings):
            g_pool.capture.deinit_ui()
            g_pool.capture.cleanup()
            g_pool.capture = source_class_by_name[source_class_name](
                g_pool, **source_settings)
            g_pool.capture.init_ui()
            if g_pool.writer:
                logger.info("Done recording.")
                try:
                    g_pool.writer.release()
                except RuntimeError:
                    logger.error("No eye video recorded")
                g_pool.writer = None

        g_pool.replace_source = replace_source  # for ndsi capture

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        # load last gui configuration
        g_pool.gui.configuration = session_settings.get("ui_config", {})

        # set up performance graphs
        pid = os.getpid()
        ps = psutil.Process(pid)
        ts = g_pool.get_timestamp()

        cpu_graph = graph.Bar_Graph()
        cpu_graph.pos = (20, 50)
        cpu_graph.update_fn = ps.cpu_percent
        cpu_graph.update_rate = 5
        cpu_graph.label = "CPU %0.1f"

        fps_graph = graph.Bar_Graph()
        fps_graph.pos = (140, 50)
        fps_graph.update_rate = 5
        fps_graph.label = "%0.0f FPS"
        g_pool.graphs = [cpu_graph, fps_graph]

        # set the last saved window size
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        should_publish_frames = False
        frame_publish_format = "jpeg"
        frame_publish_format_recent_warning = False

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        logger.warning("Process started.")

        frame = None

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            if notify_sub.new_data:
                t, notification = notify_sub.recv()
                subject = notification["subject"]
                if subject.startswith("eye_process.should_stop"):
                    if notification["eye_id"] == eye_id:
                        break
                elif subject == "set_detection_mapping_mode":
                    if notification["mode"] == "3d":
                        if not isinstance(g_pool.pupil_detector, Detector_3D):
                            set_detector(Detector_3D)
                        detector_selector.read_only = True
                    elif notification["mode"] == "2d":
                        if not isinstance(g_pool.pupil_detector, Detector_2D):
                            set_detector(Detector_2D)
                        detector_selector.read_only = False
                    else:
                        if not isinstance(g_pool.pupil_detector,
                                          Detector_Dummy):
                            set_detector(Detector_Dummy)
                        detector_selector.read_only = True
                elif subject == "recording.started":
                    if notification["record_eye"] and g_pool.capture.online:
                        record_path = notification["rec_path"]
                        raw_mode = notification["compression"]
                        logger.info(
                            "Will save eye video to: {}".format(record_path))
                        video_path = os.path.join(record_path,
                                                  "eye{}.mp4".format(eye_id))
                        if raw_mode and frame and g_pool.capture.jpeg_support:
                            g_pool.writer = JPEG_Writer(
                                video_path, g_pool.capture.frame_rate)
                        elif hasattr(g_pool.capture._recent_frame,
                                     "h264_buffer"):
                            g_pool.writer = H264Writer(
                                video_path,
                                g_pool.capture.frame_size[0],
                                g_pool.capture.frame_size[1],
                                g_pool.capture.frame_rate,
                            )
                        else:
                            g_pool.writer = AV_Writer(
                                video_path, g_pool.capture.frame_rate)
                elif subject == "recording.stopped":
                    if g_pool.writer:
                        logger.info("Done recording.")
                        try:
                            g_pool.writer.release()
                        except RuntimeError:
                            logger.error("No eye video recorded")
                        g_pool.writer = None
                elif subject.startswith("meta.should_doc"):
                    ipc_socket.notify({
                        "subject": "meta.doc",
                        "actor": "eye{}".format(eye_id),
                        "doc": eye.__doc__,
                    })
                elif subject.startswith("frame_publishing.started"):
                    should_publish_frames = True
                    frame_publish_format = notification.get("format", "jpeg")
                elif subject.startswith("frame_publishing.stopped"):
                    should_publish_frames = False
                    frame_publish_format = "jpeg"
                elif (subject.startswith("start_eye_capture")
                      and notification["target"] == g_pool.process):
                    replace_source(notification["name"], notification["args"])
                elif notification["subject"].startswith(
                        "pupil_detector.set_property"):
                    target_process = notification.get("target", g_pool.process)
                    should_apply = target_process == g_pool.process

                    if should_apply:
                        try:
                            property_name = notification["name"]
                            property_value = notification["value"]
                            if "2d" in notification["subject"]:
                                g_pool.pupil_detector.set_2d_detector_property(
                                    property_name, property_value)
                            elif "3d" in notification["subject"]:
                                if not isinstance(g_pool.pupil_detector,
                                                  Detector_3D):
                                    raise ValueError(
                                        "3d properties are only available"
                                        " if 3d detector is active")
                                g_pool.pupil_detector.set_3d_detector_property(
                                    property_name, property_value)
                            else:
                                raise KeyError("Notification subject does not "
                                               "specifiy detector type.")
                            logger.debug("`{}` property set to {}".format(
                                property_name, property_value))
                        except KeyError:
                            logger.error("Malformed notification received")
                            logger.debug(traceback.format_exc())
                        except (ValueError, TypeError):
                            logger.error("Invalid property or value")
                            logger.debug(traceback.format_exc())
                elif notification["subject"].startswith(
                        "pupil_detector.broadcast_properties"):
                    target_process = notification.get("target", g_pool.process)
                    should_respond = target_process == g_pool.process
                    if should_respond:
                        props = g_pool.pupil_detector.get_detector_properties()
                        properties_broadcast = {
                            "subject":
                            "pupil_detector.properties.{}".format(eye_id),
                            **props,  # add properties to broadcast
                        }
                        ipc_socket.notify(properties_broadcast)
                g_pool.capture.on_notify(notification)
                g_pool.capture_manager.on_notify(notification)

            # Get an image from the grabber
            event = {}
            g_pool.capture.recent_events(event)
            frame = event.get("frame")
            g_pool.capture_manager.recent_events(event)
            if frame:
                f_width, f_height = g_pool.capture.frame_size
                if (g_pool.u_r.array_shape[0], g_pool.u_r.array_shape[1]) != (
                        f_height,
                        f_width,
                ):
                    g_pool.pupil_detector.on_resolution_change(
                        (g_pool.u_r.array_shape[1], g_pool.u_r.array_shape[0]),
                        g_pool.capture.frame_size,
                    )
                    g_pool.u_r = UIRoi((f_height, f_width))
                if should_publish_frames:
                    try:
                        if frame_publish_format == "jpeg":
                            data = frame.jpeg_buffer
                        elif frame_publish_format == "yuv":
                            data = frame.yuv_buffer
                        elif frame_publish_format == "bgr":
                            data = frame.bgr
                        elif frame_publish_format == "gray":
                            data = frame.gray
                        assert data is not None
                    except (AttributeError, AssertionError, NameError):
                        if not frame_publish_format_recent_warning:
                            frame_publish_format_recent_warning = True
                            logger.warning(
                                '{}s are not compatible with format "{}"'.
                                format(type(frame), frame_publish_format))
                    else:
                        frame_publish_format_recent_warning = False
                        pupil_socket.send({
                            "topic":
                            "frame.eye.{}".format(eye_id),
                            "width":
                            frame.width,
                            "height":
                            frame.height,
                            "index":
                            frame.index,
                            "timestamp":
                            frame.timestamp,
                            "format":
                            frame_publish_format,
                            "__raw_data__": [data],
                        })

                t = frame.timestamp
                dt, ts = t - ts, t
                try:
                    fps_graph.add(1.0 / dt)
                except ZeroDivisionError:
                    pass

                if g_pool.writer:
                    g_pool.writer.write_video_frame(frame)

                # pupil ellipse detection
                result = g_pool.pupil_detector.detect(
                    frame, g_pool.u_r, g_pool.display_mode == "algorithm")
                if result is not None:
                    result["id"] = eye_id
                    result["topic"] = "pupil.{}".format(eye_id)
                    pupil_socket.send(result)

            cpu_graph.update()

            # GL drawing
            if window_should_update():
                if is_window_visible(main_window):
                    glfw.glfwMakeContextCurrent(main_window)
                    clear_gl_screen()

                    if frame:
                        # switch to work in normalized coordinate space
                        if g_pool.display_mode == "algorithm":
                            g_pool.image_tex.update_from_ndarray(frame.img)
                        elif g_pool.display_mode in ("camera_image", "roi"):
                            g_pool.image_tex.update_from_ndarray(frame.gray)
                        else:
                            pass
                    glViewport(0, 0, *camera_render_size)
                    make_coord_system_norm_based(g_pool.flip)
                    g_pool.image_tex.draw()

                    f_width, f_height = g_pool.capture.frame_size
                    make_coord_system_pixel_based((f_height, f_width, 3),
                                                  g_pool.flip)
                    if frame and result:
                        if result["method"] == "3d c++":
                            eye_ball = result["projected_sphere"]
                            try:
                                pts = cv2.ellipse2Poly(
                                    (
                                        int(eye_ball["center"][0]),
                                        int(eye_ball["center"][1]),
                                    ),
                                    (
                                        int(eye_ball["axes"][0] / 2),
                                        int(eye_ball["axes"][1] / 2),
                                    ),
                                    int(eye_ball["angle"]),
                                    0,
                                    360,
                                    8,
                                )
                            except ValueError as e:
                                pass
                            else:
                                draw_polyline(
                                    pts,
                                    2,
                                    RGBA(0.0, 0.9, 0.1,
                                         result["model_confidence"]),
                                )
                        if result["confidence"] > 0:
                            if "ellipse" in result:
                                pts = cv2.ellipse2Poly(
                                    (
                                        int(result["ellipse"]["center"][0]),
                                        int(result["ellipse"]["center"][1]),
                                    ),
                                    (
                                        int(result["ellipse"]["axes"][0] / 2),
                                        int(result["ellipse"]["axes"][1] / 2),
                                    ),
                                    int(result["ellipse"]["angle"]),
                                    0,
                                    360,
                                    15,
                                )
                                confidence = result["confidence"] * 0.7
                                draw_polyline(pts, 1,
                                              RGBA(1.0, 0, 0, confidence))
                                draw_points(
                                    [result["ellipse"]["center"]],
                                    size=20,
                                    color=RGBA(1.0, 0.0, 0.0, confidence),
                                    sharpness=1.0,
                                )

                    glViewport(0, 0, *camera_render_size)
                    glfw.glfwPollEvents()
                    make_coord_system_pixel_based((f_height, f_width, 3),
                                                  g_pool.flip)
                    # render the ROI
                    g_pool.u_r.draw(g_pool.gui.scale)
                    if g_pool.display_mode == "roi":
                        g_pool.u_r.draw_points(g_pool.gui.scale)

                    glViewport(0, 0, *window_size)
                    make_coord_system_pixel_based((*window_size[::-1], 3),
                                                  g_pool.flip)
                    # render graphs
                    fps_graph.draw()
                    cpu_graph.draw()

                    # render GUI
                    unused_elements = g_pool.gui.update()
                    for butt in unused_elements.buttons:
                        uroi_on_mouse_button(*butt)

                    make_coord_system_pixel_based((*window_size[::-1], 3),
                                                  g_pool.flip)

                    g_pool.pupil_detector.visualize(
                    )  # detector decides if we visualize or not

                    # update screen
                    glfw.glfwSwapBuffers(main_window)

        # END while running

        # in case eye recording was still runnnig: Save&close
        if g_pool.writer:
            logger.info("Done recording eye.")
            g_pool.writer = None

        glfw.glfwRestoreWindow(main_window)  # need to do this for windows os
        # save session persistent settings
        session_settings["gui_scale"] = g_pool.gui_user_scale
        session_settings["roi"] = g_pool.u_r.get()
        session_settings["flip"] = g_pool.flip
        session_settings["display_mode"] = g_pool.display_mode
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["capture_settings"] = (
            g_pool.capture.class_name,
            g_pool.capture.get_init_dict(),
        )
        session_settings["capture_manager_settings"] = (
            g_pool.capture_manager.class_name,
            g_pool.capture_manager.get_init_dict(),
        )
        session_settings["window_position"] = glfw.glfwGetWindowPos(
            main_window)
        session_settings["version"] = str(g_pool.version)
        session_settings[
            "last_pupil_detector"] = g_pool.pupil_detector.__class__.__name__
        session_settings[
            "pupil_detector_settings"] = g_pool.pupil_detector.get_settings()

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            session_settings["window_size"] = session_window_size

        session_settings.close()

        g_pool.capture.deinit_ui()
        g_pool.capture_manager.deinit_ui()
        g_pool.pupil_detector.deinit_ui()

        g_pool.pupil_detector.cleanup()
        g_pool.capture_manager.cleanup()
        g_pool.capture.cleanup()

        glfw.glfwDestroyWindow(main_window)
        g_pool.gui.terminate()
        glfw.glfwTerminate()
        logger.info("Process shutting down.")
Ejemplo n.º 3
0
import zmq_tools
import zmq

ctx = zmq.Context()
requester = ctx.socket(zmq.REQ)
requester.connect('tcp://127.0.1.1:50020')  #change ip if using remote machine

requester.send_string('SUB_PORT')
ipc_sub_port = requester.recv()

topics_list = ('notify.eye_process.', 'notify.player_process.',
               'notify.world_process.')

print('tcp://127.0.1.1:' + ipc_sub_port.decode())
monitor = zmq_tools.Msg_Receiver(ctx,
                                 'tcp://127.0.1.1:%s' % ipc_sub_port.decode(),
                                 topics=topics_list)

while True:
    print(monitor.recv())
Ejemplo n.º 4
0
def world(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url,
          ipc_push_url, user_dir, version):
    """Reads world video and runs plugins.

    Creates a window, gl context.
    Grabs images from a capture.
    Maps pupil to gaze data
    Can run various plug-ins.

    Reacts to notifications:
        ``set_detection_mapping_mode``
        ``eye_process.started``
        ``start_plugin``

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``world_process.started``
        ``world_process.stopped``
        ``recording.should_stop``: Emits on camera failure
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events
               that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    import logging

    # networking
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('notify',))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.INFO)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    # display
    import glfw
    from pyglui import ui, graph, cygl, __version__ as pyglui_version
    assert pyglui_version >= '1.7'
    from pyglui.cygl.utils import Named_Texture
    import gl_utils

    # monitoring
    import psutil

    # helpers/utils
    from version_utils import VersionFormat
    from file_methods import Persistent_Dict
    from methods import normalize, denormalize, delta_t, get_system_info, timer
    from uvc import get_time_monotonic
    logger.info('Application Version: {}'.format(version))
    logger.info('System Info: {}'.format(get_system_info()))

    import audio

    # trigger pupil detector cpp build:
    import pupil_detectors
    del pupil_detectors

    # Plug-ins
    from plugin import Plugin, Plugin_List, import_runtime_plugins
    from calibration_routines import calibration_plugins, gaze_mapping_plugins, Calibration_Plugin
    from fixation_detector import Fixation_Detector
    from recorder import Recorder
    from display_recent_gaze import Display_Recent_Gaze
    from time_sync import Time_Sync
    from pupil_remote import Pupil_Remote
    from pupil_groups import Pupil_Groups
    from surface_tracker import Surface_Tracker
    from log_display import Log_Display
    from annotations import Annotation_Capture
    from log_history import Log_History
    from frame_publisher import Frame_Publisher
    from blink_detection import Blink_Detection
    from video_capture import source_classes, manager_classes, Base_Manager
    from pupil_data_relay import Pupil_Data_Relay
    from remote_recorder import Remote_Recorder
    from audio_capture import Audio_Capture
    from accuracy_visualizer import Accuracy_Visualizer

    # UI Platform tweaks
    if platform.system() == 'Linux':
        scroll_factor = 10.0
        window_position_default = (0, 0)
    elif platform.system() == 'Windows':
        scroll_factor = 10.0
        window_position_default = (8, 31)
    else:
        scroll_factor = 1.0
        window_position_default = (0, 0)

    # g_pool holds variables for this process they are accesible to all plugins
    g_pool = Global_Container()
    g_pool.app = 'capture'
    g_pool.process = 'world'
    g_pool.user_dir = user_dir
    g_pool.version = version
    g_pool.timebase = timebase
    g_pool.zmq_ctx = zmq_ctx
    g_pool.ipc_pub = ipc_pub
    g_pool.ipc_pub_url = ipc_pub_url
    g_pool.ipc_sub_url = ipc_sub_url
    g_pool.ipc_push_url = ipc_push_url
    g_pool.eyes_are_alive = eyes_are_alive

    def get_timestamp():
        return get_time_monotonic() - g_pool.timebase.value
    g_pool.get_timestamp = get_timestamp
    g_pool.get_now = get_time_monotonic

    # manage plugins
    runtime_plugins = import_runtime_plugins(os.path.join(g_pool.user_dir, 'plugins'))
    calibration_plugins += [p for p in runtime_plugins if issubclass(p, Calibration_Plugin)]
    runtime_plugins = [p for p in runtime_plugins if not issubclass(p, Calibration_Plugin)]
    manager_classes += [p for p in runtime_plugins if issubclass(p, Base_Manager)]
    runtime_plugins = [p for p in runtime_plugins if not issubclass(p, Base_Manager)]
    user_launchable_plugins = [Audio_Capture, Pupil_Groups, Frame_Publisher, Pupil_Remote, Time_Sync, Surface_Tracker,
                               Annotation_Capture, Log_History, Fixation_Detector,
                               Blink_Detection, Remote_Recorder, Accuracy_Visualizer] + runtime_plugins
    system_plugins = [Log_Display, Display_Recent_Gaze, Recorder, Pupil_Data_Relay]
    plugin_by_index = (system_plugins + user_launchable_plugins + calibration_plugins
                       + gaze_mapping_plugins + manager_classes + source_classes)
    name_by_index = [p.__name__ for p in plugin_by_index]
    plugin_by_name = dict(zip(name_by_index, plugin_by_index))

    default_capture_settings = {
        'preferred_names': ["Pupil Cam1 ID2", "Logitech Camera", "(046d:081d)",
                            "C510", "B525", "C525", "C615", "C920", "C930e"],
        'frame_size': (1280, 720),
        'frame_rate': 30
    }

    default_plugins = [("UVC_Source", default_capture_settings),
                       ('Pupil_Data_Relay', {}),
                       ('UVC_Manager', {}),
                       ('Log_Display', {}),
                       ('Dummy_Gaze_Mapper', {}),
                       ('Display_Recent_Gaze', {}),
                       ('Screen_Marker_Calibration', {}),
                       ('Recorder', {}),
                       ('Pupil_Remote', {})]

    # Callback functions
    def on_resize(window, w, h):
        if gl_utils.is_window_visible(window):
            hdpi_factor = float(glfw.glfwGetFramebufferSize(window)[0] / glfw.glfwGetWindowSize(window)[0])
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = hdpi_factor
                g.adjust_window_size(w, h)
            gl_utils.adjust_gl_view(w, h)
            for p in g_pool.plugins:
                p.on_window_resize(window, w, h)

    def on_iconify(window, iconified):
        g_pool.iconified = iconified

    def on_window_key(window, key, scancode, action, mods):
        g_pool.gui.update_key(key, scancode, action, mods)

    def on_window_char(window, char):
        g_pool.gui.update_char(char)

    def on_window_mouse_button(window, button, action, mods):
        g_pool.gui.update_button(button, action, mods)

    def on_pos(window, x, y):
        hdpi_factor = float(glfw.glfwGetFramebufferSize(
            window)[0] / glfw.glfwGetWindowSize(window)[0])
        x, y = x * hdpi_factor, y * hdpi_factor
        g_pool.gui.update_mouse(x, y)

    def on_scroll(window, x, y):
        g_pool.gui.update_scroll(x, y * scroll_factor)

    def on_drop(window, count, paths):
        paths = [paths[x].decode('utf-8') for x in range(count)]
        for p in g_pool.plugins:
            p.on_drop(paths)

    tick = delta_t()

    def get_dt():
        return next(tick)

    # load session persistent settings
    session_settings = Persistent_Dict(os.path.join(g_pool.user_dir, 'user_settings_world'))
    if VersionFormat(session_settings.get("version", '0.0')) != g_pool.version:
        logger.info("Session setting are from a different version of this app. I will not use those.")
        session_settings.clear()

    g_pool.iconified = False
    g_pool.detection_mapping_mode = session_settings.get('detection_mapping_mode', '3d')
    g_pool.active_calibration_plugin = None
    g_pool.active_gaze_mapping_plugin = None
    g_pool.capture_manager = None

    audio.audio_mode = session_settings.get('audio_mode', audio.default_audio_mode)

    def open_plugin(plugin):
        if plugin == "Select to load":
            return
        g_pool.plugins.add(plugin)

    def launch_eye_process(eye_id, delay=0):
        n = {'subject': 'eye_process.should_start.{}'.format(eye_id),
             'eye_id': eye_id, 'delay': delay}
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {'subject': 'eye_process.should_stop.{}'.format(eye_id), 'eye_id': eye_id,'delay':0.2}
        ipc_pub.notify(n)

    def start_stop_eye(eye_id, make_alive):
        if make_alive:
            launch_eye_process(eye_id)
        else:
            stop_eye_process(eye_id)

    def set_detection_mapping_mode(new_mode):
        n = {'subject': 'set_detection_mapping_mode', 'mode': new_mode}
        ipc_pub.notify(n)

    def handle_notifications(n):
        subject = n['subject']
        if subject == 'set_detection_mapping_mode':
            if n['mode'] == '2d':
                if ("Vector_Gaze_Mapper" in
                        g_pool.active_gaze_mapping_plugin.class_name):
                    logger.warning("The gaze mapper is not supported in 2d mode. Please recalibrate.")
                    g_pool.plugins.add(plugin_by_name['Dummy_Gaze_Mapper'])
            g_pool.detection_mapping_mode = n['mode']
        elif subject == 'start_plugin':
            g_pool.plugins.add(plugin_by_name[n['name']], args=n.get('args', {}))
        elif subject == 'stop_plugin':
            for p in g_pool.plugins:
                if p.class_name == n['name']:
                    p.alive = False
                    g_pool.plugins.clean()
        elif subject == 'eye_process.started':
            n = {'subject': 'set_detection_mapping_mode',
                 'mode': g_pool.detection_mapping_mode}
            ipc_pub.notify(n)
        elif subject.startswith('meta.should_doc'):
            ipc_pub.notify({'subject': 'meta.doc',
                            'actor': g_pool.app,
                            'doc': world.__doc__})
            for p in g_pool.plugins:
                if (p.on_notify.__doc__
                        and p.__class__.on_notify != Plugin.on_notify):
                    ipc_pub.notify({'subject': 'meta.doc',
                                    'actor': p.class_name,
                                    'doc': p.on_notify.__doc__})

    # window and gl setup
    glfw.glfwInit()
    width, height = session_settings.get('window_size', (1280, 720))
    main_window = glfw.glfwCreateWindow(width, height, "Pupil Capture - World")
    window_pos = session_settings.get('window_position', window_position_default)
    glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
    glfw.glfwMakeContextCurrent(main_window)
    cygl.utils.init()
    g_pool.main_window = main_window

    def set_scale(new_scale):
        g_pool.gui_user_scale = new_scale
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

    def reset_restart():
        logger.warning("Resetting all settings and restarting Capture.")
        glfw.glfwSetWindowShouldClose(main_window, True)
        ipc_pub.notify({'subject': 'reset_restart_process.should_start'})

    # setup GUI
    g_pool.gui = ui.UI()
    g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
    g_pool.sidebar = ui.Scrolling_Menu("Settings", pos=(-350, 0), size=(0, 0), header_pos='left')
    general_settings = ui.Growing_Menu('General')
    general_settings.append(ui.Button('Reset to default settings',reset_restart))
    general_settings.append(ui.Selector('gui_user_scale', g_pool, setter=set_scale, selection=[.8, .9, 1., 1.1, 1.2], label='Interface size'))
    general_settings.append(ui.Button('Reset window size', lambda: glfw.glfwSetWindowSize(main_window,g_pool.capture.frame_size[0],g_pool.capture.frame_size[1])) )
    general_settings.append(ui.Selector('audio_mode', audio, selection=audio.audio_modes))
    general_settings.append(ui.Selector('detection_mapping_mode',
                                        g_pool,
                                        label='detection & mapping mode',
                                        setter=set_detection_mapping_mode,
                                        selection=['2d','3d']
                                    ))
    general_settings.append(ui.Switch('eye0_process',
                                        label='Detect eye 0',
                                        setter=lambda alive: start_stop_eye(0,alive),
                                        getter=lambda: eyes_are_alive[0].value
                                    ))
    general_settings.append(ui.Switch('eye1_process',
                                        label='Detect eye 1',
                                        setter=lambda alive: start_stop_eye(1,alive),
                                        getter=lambda: eyes_are_alive[1].value
                                    ))
    selector_label = "Select to load"
    labels = [p.__name__.replace('_', ' ') for p in user_launchable_plugins]
    user_launchable_plugins.insert(0, selector_label)
    labels.insert(0, selector_label)
    general_settings.append(ui.Selector('Open plugin',
                                        selection=user_launchable_plugins,
                                        labels=labels,
                                        setter=open_plugin,
                                        getter=lambda: selector_label))

    general_settings.append(ui.Info_Text('Capture Version: {}'.format(g_pool.version)))

    g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100), (120, -100))

    g_pool.capture_source_menu = ui.Growing_Menu('Capture Source')
    g_pool.capture_source_menu.collapsed = True

    g_pool.calibration_menu = ui.Growing_Menu('Calibration')
    g_pool.calibration_menu.collapsed = True
    g_pool.capture_selector_menu = ui.Growing_Menu('Capture Selection')

    g_pool.sidebar.append(general_settings)
    g_pool.sidebar.append(g_pool.capture_selector_menu)
    g_pool.sidebar.append(g_pool.capture_source_menu)
    g_pool.sidebar.append(g_pool.calibration_menu)

    g_pool.gui.append(g_pool.sidebar)
    g_pool.gui.append(g_pool.quickbar)

    # plugins that are loaded based on user settings from previous session
    g_pool.plugins = Plugin_List(g_pool, plugin_by_name, session_settings.get('loaded_plugins', default_plugins))

    #We add the calibration menu selector, after a calibration has been added:
    g_pool.calibration_menu.insert(0,ui.Selector(
                        'active_calibration_plugin',
                        getter=lambda: g_pool.active_calibration_plugin.__class__,
                        selection = calibration_plugins,
                        labels = [p.__name__.replace('_',' ') for p in calibration_plugins],
                        setter= open_plugin,label='Method'
                                ))

    #We add the capture selection menu, after a manager has been added:
    g_pool.capture_selector_menu.insert(0,ui.Selector(
                            'capture_manager',
                            setter    = open_plugin,
                            getter    = lambda: g_pool.capture_manager.__class__,
                            selection = manager_classes,
                            labels    = [b.gui_name for b in manager_classes],
                            label     = 'Manager'
                        ))

    # Register callbacks main_window
    glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
    glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
    glfw.glfwSetKeyCallback(main_window, on_window_key)
    glfw.glfwSetCharCallback(main_window, on_window_char)
    glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
    glfw.glfwSetCursorPosCallback(main_window, on_pos)
    glfw.glfwSetScrollCallback(main_window, on_scroll)
    glfw.glfwSetDropCallback(main_window, on_drop)

    # gl_state settings
    gl_utils.basic_gl_setup()
    g_pool.image_tex = Named_Texture()

    # now the we have  aproper window we can load the last gui configuration
    g_pool.gui.configuration = session_settings.get('ui_config', {})

    # create a timer to control window update frequency
    window_update_timer = timer(1 / 60)
    def window_should_update():
        return next(window_update_timer)

    # set up performace graphs:
    pid = os.getpid()
    ps = psutil.Process(pid)
    ts = g_pool.get_timestamp()

    cpu_graph = graph.Bar_Graph()
    cpu_graph.pos = (20, 130)
    cpu_graph.update_fn = ps.cpu_percent
    cpu_graph.update_rate = 5
    cpu_graph.label = 'CPU %0.1f'

    fps_graph = graph.Bar_Graph()
    fps_graph.pos = (140, 130)
    fps_graph.update_rate = 5
    fps_graph.label = "%0.0f FPS"

    pupil0_graph = graph.Bar_Graph(max_val=1.0)
    pupil0_graph.pos = (260, 130)
    pupil0_graph.update_rate = 5
    pupil0_graph.label = "id0 conf: %0.2f"
    pupil1_graph = graph.Bar_Graph(max_val=1.0)
    pupil1_graph.pos = (380, 130)
    pupil1_graph.update_rate = 5
    pupil1_graph.label = "id1 conf: %0.2f"
    pupil_graphs = pupil0_graph, pupil1_graph
    g_pool.graphs = [cpu_graph, fps_graph, pupil0_graph, pupil1_graph]

    # trigger setup of window and gl sizes
    on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

    if session_settings.get('eye1_process_alive', False):
        launch_eye_process(1, delay=0.6)
    if session_settings.get('eye0_process_alive', True):
        launch_eye_process(0, delay=0.3)

    ipc_pub.notify({'subject': 'world_process.started'})
    logger.warning('Process started.')

    # Event loop
    while not glfw.glfwWindowShouldClose(main_window):

        # fetch newest notifications
        new_notifications = []
        while notify_sub.new_data:
            t, n = notify_sub.recv()
            new_notifications.append(n)

        # notify each plugin if there are new notifications:
        for n in new_notifications:
            handle_notifications(n)
            for p in g_pool.plugins:
                p.on_notify(n)


        #a dictionary that allows plugins to post and read events
        events = {}
        # report time between now and the last loop interation
        events['dt'] = get_dt()

        # allow each Plugin to do its work.
        for p in g_pool.plugins:
            p.recent_events(events)

        # check if a plugin need to be destroyed
        g_pool.plugins.clean()

        # update performace graphs
        if 'frame' in events:
            t = events["frame"].timestamp
            dt, ts = t-ts, t
            try:
                fps_graph.add(1./dt)
            except ZeroDivisionError:
                pass
        for p in events["pupil_positions"]:
            pupil_graphs[p['id']].add(p['confidence'])
        cpu_graph.update()

        # send new events to ipc:
        del events['pupil_positions']  # already on the wire
        del events['gaze_positions']  # sent earlier
        if 'frame' in events:
            del events['frame']  # send explicity with frame publisher
        if 'depth_frame' in events:
            del events['depth_frame']
        if 'audio_packets' in events:
            del events['audio_packets']
        del events['dt']  # no need to send this
        for topic, data in events.items():
            assert(isinstance(data, (list, tuple)))
            for d in data:
                ipc_pub.send(topic, d)

        glfw.glfwMakeContextCurrent(main_window)
        # render visual feedback from loaded plugins
        if window_should_update() and gl_utils.is_window_visible(main_window):
            for p in g_pool.plugins:
                p.gl_display()

            for g in g_pool.graphs:
                g.draw()

            unused_elements = g_pool.gui.update()
            for button, action, mods in unused_elements.buttons:
                pos = glfw.glfwGetCursorPos(main_window)
                pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
                # Position in img pixels
                pos = denormalize(pos, g_pool.capture.frame_size)
                for p in g_pool.plugins:
                    p.on_click(pos, button, action)

            for key, scancode, action, mods in unused_elements.keys:
                for p in g_pool.plugins:
                    p.on_key(key, scancode, action, mods)

            for char_ in unused_elements.chars:
                for p in g_pool.plugins:
                    p.on_char(char_)

            glfw.glfwSwapBuffers(main_window)
        glfw.glfwPollEvents()

    glfw.glfwRestoreWindow(main_window)  # need to do this for windows os
    session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
    session_settings['gui_scale'] = g_pool.gui_user_scale
    session_settings['ui_config'] = g_pool.gui.configuration
    session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
    session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
    session_settings['version'] = str(g_pool.version)
    session_settings['eye0_process_alive'] = eyes_are_alive[0].value
    session_settings['eye1_process_alive'] = eyes_are_alive[1].value
    session_settings['detection_mapping_mode'] = g_pool.detection_mapping_mode
    session_settings['audio_mode'] = audio.audio_mode
    session_settings.close()

    # de-init all running plugins
    for p in g_pool.plugins:
        p.alive = False
    g_pool.plugins.clean()

    g_pool.gui.terminate()
    glfw.glfwDestroyWindow(main_window)
    glfw.glfwTerminate()


    # shut down eye processes:
    stop_eye_process(0)
    stop_eye_process(1)

    logger.info("Process shutting down.")
    ipc_pub.notify({'subject': 'world_process.stopped'})
Ejemplo n.º 5
0
def launcher():
    """Starts eye processes. Hosts the IPC Backbone and Logging functions.

    Reacts to notifications:
       ``launcher_process.should_stop``: Stops the launcher process
       ``eye_process.should_start``: Starts the eye process
    """

    ## IPC
    #shared values
    timebase = Value(c_double, 0)
    eyes_are_alive = Value(c_bool, 0), Value(c_bool, 0)

    #network backbone setup
    zmq_ctx = zmq.Context()
    # lets get some open ports:
    test_socket = zmq_ctx.socket(zmq.SUB)
    ipc_sub_port = test_socket.bind_to_random_port('tcp://*',
                                                   min_port=5001,
                                                   max_port=6000,
                                                   max_tries=100)
    ipc_pub_port = test_socket.bind_to_random_port('tcp://*',
                                                   min_port=6001,
                                                   max_port=7000,
                                                   max_tries=100)
    ipc_push_port = test_socket.bind_to_random_port('tcp://*',
                                                    min_port=6001,
                                                    max_port=7000,
                                                    max_tries=100)
    test_socket.close(linger=0)

    ipc_pub_url = 'tcp://127.0.0.1:%s' % ipc_pub_port
    ipc_sub_url = 'tcp://127.0.0.1:%s' % ipc_sub_port
    ipc_push_url = 'tcp://127.0.0.1:%s' % ipc_push_port

    #We use a zmq forwarder and the zmq PUBSUB pattern to do all our IPC.
    def ipc_backbone(in_url, out_url):
        ctx = zmq.Context.instance()
        xsub = ctx.socket(zmq.XSUB)
        xsub.bind(in_url)
        xpub = ctx.socket(zmq.XPUB)
        xpub.bind(out_url)
        try:
            zmq.proxy(xsub, xpub)
        except zmq.ContextTerminated:
            xsub.close()
            xpub.close()

    #reliable msg dispatch to the IPC via push bridge
    def pull_pub(in_url, out_url):
        ctx = zmq.Context.instance()
        pull = ctx.socket(zmq.PULL)
        pull.bind(in_url)
        pub = ctx.socket(zmq.PUB)
        pub.connect(out_url)
        while True:
            m = pull.recv_multipart()
            pub.send_multipart(m)

    #The delay proxy handles delayed notififications.
    def delay_proxy(in_url, out_url):
        ctx = zmq.Context.instance()
        sub = zmq_tools.Msg_Receiver(ctx, in_url, ('delayed_notify', ))
        pub = zmq_tools.Msg_Dispatcher(ctx, out_url)
        poller = zmq.Poller()
        poller.register(sub.socket, zmq.POLLIN)
        waiting_notifications = {}
        try:
            while True:
                if poller.poll(timeout=250):
                    #Recv new delayed notification and store it.
                    topic, n = sub.recv()
                    n['_notify_time_'] = time() + n['delay']
                    waiting_notifications[n['subject']] = n
                #When a notifications time has come, pop from dict and send it as notification
                for n in waiting_notifications.values():
                    if n['_notify_time_'] < time():
                        del n['_notify_time_']
                        del n['delay']
                        del waiting_notifications[n['subject']]
                        pub.notify(n)
        except zmq.ContextTerminated:
            sub.close()
            pub.close()

    #recv log records from other processes.
    def log_loop(ipc_sub_url, log_level_debug):
        import logging
        #Get the root logger
        logger = logging.getLogger()
        #set log level
        if log_level_debug:
            logger.setLevel(logging.DEBUG)
        else:
            logger.setLevel(logging.INFO)
        #Stream to file
        fh = logging.FileHandler(os.path.join(user_dir, 'capture.log'),
                                 mode='w')
        fh.setFormatter(
            logging.Formatter(
                '%(asctime)s - %(processName)s - [%(levelname)s] %(name)s: %(message)s'
            ))
        logger.addHandler(fh)
        #Stream to console.
        ch = logging.StreamHandler()
        ch.setFormatter(
            logging.Formatter(
                '%(processName)s - [%(levelname)s] %(name)s: %(message)s'))
        logger.addHandler(ch)
        # IPC setup to receive log messages. Use zmq_tools.ZMQ_handler to send messages to here.
        sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                     ipc_sub_url,
                                     topics=("logging", ))
        while True:
            topic, msg = sub.recv()
            record = logging.makeLogRecord(msg)
            logger.handle(record)

    ipc_backbone_thread = Thread(target=ipc_backbone,
                                 args=('tcp://*:%s' % ipc_pub_port,
                                       'tcp://*:%s' % ipc_sub_port))
    ipc_backbone_thread.setDaemon(True)
    ipc_backbone_thread.start()

    log_thread = Thread(target=log_loop,
                        args=(ipc_sub_url, 'debug' in sys.argv))
    log_thread.setDaemon(True)
    log_thread.start()

    delay_thread = Thread(target=delay_proxy, args=(ipc_sub_url, ipc_push_url))
    delay_thread.setDaemon(True)
    delay_thread.start()

    pull_pub = Thread(target=pull_pub,
                      args=('tcp://*:%s' % ipc_push_port, ipc_pub_url))
    pull_pub.setDaemon(True)
    pull_pub.start()

    topics = ('notify.eye_process.', 'notify.launcher_process.',
              'notify.meta.should_doc')
    cmd_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=topics)
    cmd_push = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)

    if app == 'service':
        Process(target=service,
                name='service',
                args=(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url,
                      ipc_push_url, user_dir, app_version, None)).start()
    else:
        Process(target=world,
                name='world',
                args=(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url,
                      ipc_push_url, user_dir, app_version,
                      video_sources['world'])).start()

    while True:
        #block and listen for relevant messages.
        topic, n = cmd_sub.recv()
        if "notify.eye_process.should_start" in topic:
            eye_id = n['eye_id']
            if not eyes_are_alive[eye_id].value:
                Process(target=eye,
                        name='eye%s' % eye_id,
                        args=(timebase, eyes_are_alive[eye_id], ipc_pub_url,
                              ipc_sub_url, ipc_push_url, user_dir, app_version,
                              eye_id,
                              video_sources['eye%s' % eye_id])).start()
        elif "notify.launcher_process.should_stop" in topic:
            break
        elif "notify.meta.should_doc" in topic:
            cmd_push.notify({
                'subject': 'meta.doc',
                'actor': 'launcher',
                'doc': launcher.__doc__
            })

    for p in active_children():
        p.join()
Ejemplo n.º 6
0
Archivo: eye.py Proyecto: xiuxi/pupil
def eye(timebase, is_alive_flag, ipc_pub_url, ipc_sub_url, ipc_push_url,
        user_dir, version, eye_id, overwrite_cap_settings=None):
    """reads eye video and detects the pupil.

    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates.

    Reacts to notifications:
       ``set_detection_mapping_mode``: Sets detection method
       ``eye_process.should_stop``: Stops the eye process
       ``recording.started``: Starts recording eye video
       ``recording.stopped``: Stops recording eye video
       ``frame_publishing.started``: Starts frame publishing
       ``frame_publishing.stopped``: Stops frame publishing

    Emits notifications:
        ``eye_process.started``: Eye process started
        ``eye_process.stopped``: Eye process stopped

    Emits data:
        ``pupil.<eye id>``: Pupil data for eye with id ``<eye id>``
        ``frame.eye.<eye id>``: Eye frames with id ``<eye id>``
    """

    # We deferr the imports becasue of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    import zmq
    import zmq_tools
    zmq_ctx = zmq.Context()
    ipc_socket = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    pupil_socket = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=("notify",))

    # logging setup
    import logging
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.INFO)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    with Is_Alive_Manager(is_alive_flag, ipc_socket, eye_id, logger):
        # general imports
        import numpy as np
        import cv2

        # display
        import glfw
        from pyglui import ui, graph, cygl
        from pyglui.cygl.utils import draw_points, RGBA, draw_polyline
        from pyglui.cygl.utils import Named_Texture
        from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen
        from gl_utils import make_coord_system_pixel_based
        from gl_utils import make_coord_system_norm_based
        from gl_utils import is_window_visible, glViewport
        from ui_roi import UIRoi
        # monitoring
        import psutil

        # helpers/utils
        from uvc import get_time_monotonic
        from file_methods import Persistent_Dict
        from version_utils import VersionFormat
        from methods import normalize, denormalize, timer
        from av_writer import JPEG_Writer, AV_Writer
        from ndsi import H264Writer
        from video_capture import source_classes
        from video_capture import manager_classes

        # Pupil detectors
        from pupil_detectors import Detector_2D, Detector_3D
        pupil_detectors = {Detector_2D.__name__: Detector_2D,
                           Detector_3D.__name__: Detector_3D}

        # UI Platform tweaks
        if platform.system() == 'Linux':
            scroll_factor = 10.0
            window_position_default = (600, 300 * eye_id + 30)
        elif platform.system() == 'Windows':
            scroll_factor = 10.0
            window_position_default = (600, 31 + 300 * eye_id)
        else:
            scroll_factor = 1.0
            window_position_default = (600, 300 * eye_id)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None

        # g_pool holds variables for this process
        g_pool = Global_Container()

        # make some constants avaiable
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.app = 'capture'
        g_pool.process = 'eye{}'.format(eye_id)
        g_pool.timebase = timebase

        g_pool.ipc_pub = ipc_socket

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value
        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size

            active_window = glfw.glfwGetCurrentContext()
            glfw.glfwMakeContextCurrent(window)
            hdpi_factor = float(glfw.glfwGetFramebufferSize(window)[0] / glfw.glfwGetWindowSize(window)[0])
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            camera_render_size = w-int(icon_bar_width*g_pool.gui.scale), h
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = hdpi_factor
                g.adjust_window_size(w, h)
            adjust_gl_view(w, h)
            glfw.glfwMakeContextCurrent(active_window)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_iconify(window, iconified):
            g_pool.iconified = iconified

        def on_window_mouse_button(window, button, action, mods):
            if g_pool.display_mode == 'roi':
                if action == glfw.GLFW_RELEASE and g_pool.u_r.active_edit_pt:
                    g_pool.u_r.active_edit_pt = False
                    # if the roi interacts we dont want
                    # the gui to interact as well
                    return
                elif action == glfw.GLFW_PRESS:
                    pos = glfw.glfwGetCursorPos(window)
                    # pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
                    pos = normalize(pos, camera_render_size)
                    if g_pool.flip:
                        pos = 1 - pos[0], 1 - pos[1]
                    # Position in img pixels
                    pos = denormalize(pos,g_pool.capture.frame_size) # Position in img pixels
                    if g_pool.u_r.mouse_over_edit_pt(pos, g_pool.u_r.handle_size + 40,g_pool.u_r.handle_size + 40):
                        # if the roi interacts we dont want
                        # the gui to interact as well
                        return

            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            hdpi_factor = glfw.glfwGetFramebufferSize(
                window)[0] / glfw.glfwGetWindowSize(window)[0]
            g_pool.gui.update_mouse(x * hdpi_factor, y * hdpi_factor)

            if g_pool.u_r.active_edit_pt:
                pos = normalize((x, y), camera_render_size)
                if g_pool.flip:
                    pos = 1-pos[0],1-pos[1]
                pos = denormalize(pos,g_pool.capture.frame_size )
                g_pool.u_r.move_vertex(g_pool.u_r.active_pt_idx,pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode('utf-8') for x in range(count)]
            g_pool.capture_manager.on_drop(paths)
            g_pool.capture.on_drop(paths)

        # load session persistent settings
        session_settings = Persistent_Dict(os.path.join(g_pool.user_dir, 'user_settings_eye{}'.format(eye_id)))
        if VersionFormat(session_settings.get("version", '0.0')) != g_pool.version:
            logger.info("Session setting are from a different version of this app. I will not use those.")
            session_settings.clear()

        g_pool.iconified = False
        g_pool.capture = None
        g_pool.capture_manager = None
        g_pool.flip = session_settings.get('flip', False)
        g_pool.display_mode = session_settings.get(
            'display_mode', 'camera_image')
        g_pool.display_mode_info_text = {'camera_image': "Raw eye camera image. This uses the least amount of CPU power",
                                         'roi': "Click and drag on the blue circles to adjust the region of interest. The region should be as small as possible, but large enough to capture all pupil movements.",
                                         'algorithm': "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters within the Pupil Detection menu below."}


        capture_manager_settings = session_settings.get(
            'capture_manager_settings', ('UVC_Manager',{}))

        manager_class_name, manager_settings = capture_manager_settings
        manager_class_by_name = {c.__name__:c for c in manager_classes}
        g_pool.capture_manager = manager_class_by_name[manager_class_name](g_pool,**manager_settings)

        if eye_id == 0:
            cap_src = ["Pupil Cam1 ID0","HD-6000","Integrated Camera","HD USB Camera","USB 2.0 Camera"]
        else:
            cap_src = ["Pupil Cam1 ID1","HD-6000","Integrated Camera"]

        # Initialize capture
        default_settings = ('UVC_Source',{
                            'preferred_names'  : cap_src,
                            'frame_size': (640,480),
                            'frame_rate': 90
                            })

        capture_source_settings = overwrite_cap_settings or session_settings.get('capture_settings', default_settings)
        source_class_name, source_settings = capture_source_settings
        source_class_by_name = {c.__name__:c for c in source_classes}
        g_pool.capture = source_class_by_name[source_class_name](g_pool,**source_settings)
        assert g_pool.capture

        g_pool.u_r = UIRoi((g_pool.capture.frame_size[1],g_pool.capture.frame_size[0]))
        roi_user_settings = session_settings.get('roi')
        if roi_user_settings and tuple(roi_user_settings[-1]) == g_pool.u_r.get()[-1]:
            g_pool.u_r.set(roi_user_settings)

        pupil_detector_settings = session_settings.get(
            'pupil_detector_settings', None)
        last_pupil_detector = pupil_detectors[session_settings.get(
            'last_pupil_detector', Detector_2D.__name__)]
        g_pool.pupil_detector = last_pupil_detector(
            g_pool, pupil_detector_settings)

        def set_display_mode_info(val):
            g_pool.display_mode = val
            g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

        def set_detector(new_detector):
            g_pool.pupil_detector.deinit_ui()
            g_pool.pupil_detector.cleanup()
            g_pool.pupil_detector = new_detector(g_pool)
            g_pool.pupil_detector.init_ui()

        def toggle_general_settings(collapsed):
            #this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # Initialize glfw
        glfw.glfwInit()
        title = "Pupil Capture - eye {}".format(eye_id)
        width, height = session_settings.get(
            'window_size', g_pool.capture.frame_size)
        main_window = glfw.glfwCreateWindow(width, height, title, None, None)
        window_pos = session_settings.get(
            'window_position', window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()

        # UI callback functions
        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        # gl_state settings
        basic_gl_setup()
        g_pool.image_tex = Named_Texture()
        g_pool.image_tex.update_from_ndarray(np.ones((1,1),dtype=np.uint8)+125)

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
        g_pool.menubar = ui.Scrolling_Menu("Settings", pos=(-500, 0), size=(-icon_bar_width, 0), header_pos='left')
        g_pool.iconbar = ui.Scrolling_Menu("Icons",pos=(-icon_bar_width,0),size=(0,0),header_pos='hidden')
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)

        general_settings = ui.Growing_Menu('General',header_pos='headline')
        general_settings.append(ui.Selector('gui_user_scale', g_pool,
                                          setter=set_scale,
                                          selection=[.8, .9, 1., 1.1, 1.2],
                                          label='Interface Size'))

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width += int(icon_bar_width*g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)
        general_settings.append(ui.Button('Reset window size', set_window_size))
        general_settings.append(ui.Switch('flip',g_pool,label='Flip image display'))
        general_settings.append(ui.Selector('display_mode',
                                            g_pool,
                                            setter=set_display_mode_info,
                                            selection=['camera_image','roi','algorithm'],
                                            labels=['Camera Image', 'ROI', 'Algorithm'],
                                            label="Mode")
                                            )
        g_pool.display_mode_info = ui.Info_Text(g_pool.display_mode_info_text[g_pool.display_mode])

        general_settings.append(g_pool.display_mode_info)

        detector_selector = ui.Selector('pupil_detector',
                                        getter=lambda: g_pool.pupil_detector.__class__,
                                        setter=set_detector, selection=[
                                            Detector_2D, Detector_3D],
                                        labels=['C++ 2d detector',
                                                'C++ 3d detector'],
                                        label="Detection method")
        general_settings.append(detector_selector)

        g_pool.menubar.append(general_settings)
        icon = ui.Icon('collapsed', general_settings, label=chr(0xe8b8), on_val=False, off_val=True, setter=toggle_general_settings, label_font='pupil_icons')
        icon.tooltip = 'General Settings'
        g_pool.iconbar.append(icon)
        toggle_general_settings(False)

        g_pool.pupil_detector.init_ui()
        g_pool.capture.init_ui()
        g_pool.capture_manager.init_ui()
        g_pool.writer = None

        def replace_source(source_class_name, source_settings):
            g_pool.capture.deinit_ui()
            g_pool.capture.cleanup()
            g_pool.capture = source_class_by_name[source_class_name](g_pool,**source_settings)
            g_pool.capture.init_ui()
            if g_pool.writer:
                logger.info("Done recording.")
                g_pool.writer.release()
                g_pool.writer = None

        g_pool.replace_source = replace_source # for ndsi capture


        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        # load last gui configuration
        g_pool.gui.configuration = session_settings.get('ui_config', {})

        # set up performance graphs
        pid = os.getpid()
        ps = psutil.Process(pid)
        ts = g_pool.get_timestamp()

        cpu_graph = graph.Bar_Graph()
        cpu_graph.pos = (20, 50)
        cpu_graph.update_fn = ps.cpu_percent
        cpu_graph.update_rate = 5
        cpu_graph.label = 'CPU %0.1f'

        fps_graph = graph.Bar_Graph()
        fps_graph.pos = (140, 50)
        fps_graph.update_rate = 5
        fps_graph.label = "%0.0f FPS"
        g_pool.graphs = [cpu_graph, fps_graph]

        # set the last saved window size
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        should_publish_frames = False
        frame_publish_format = 'jpeg'

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        logger.warning('Process started.')

        frame = None

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            if notify_sub.new_data:
                t, notification = notify_sub.recv()
                subject = notification['subject']
                if subject.startswith('eye_process.should_stop'):
                    if notification['eye_id'] == eye_id:
                        break
                elif subject == 'set_detection_mapping_mode':
                    if notification['mode'] == '3d':
                        if not isinstance(g_pool.pupil_detector, Detector_3D):
                            set_detector(Detector_3D)
                        detector_selector.read_only = True
                    else:
                        if not isinstance(g_pool.pupil_detector, Detector_2D):
                            set_detector(Detector_2D)
                        detector_selector.read_only = False
                elif subject == 'recording.started':
                    if notification['record_eye'] and g_pool.capture.online:
                        record_path = notification['rec_path']
                        raw_mode = notification['compression']
                        logger.info("Will save eye video to: {}".format(record_path))
                        video_path = os.path.join(record_path, "eye{}.mp4".format(eye_id))
                        if raw_mode and frame and g_pool.capture.jpeg_support:
                            g_pool.writer = JPEG_Writer(video_path, g_pool.capture.frame_rate)
                        elif hasattr(g_pool.capture._recent_frame, 'h264_buffer'):
                            g_pool.writer = H264Writer(video_path,
                                                       g_pool.capture.frame_size[0],
                                                       g_pool.capture.frame_size[1],
                                                       g_pool.capture.frame_rate)
                        else:
                            g_pool.writer = AV_Writer(video_path, g_pool.capture.frame_rate)
                elif subject == 'recording.stopped':
                    if g_pool.writer:
                        logger.info("Done recording.")
                        g_pool.writer.release()
                        g_pool.writer = None
                elif subject.startswith('meta.should_doc'):
                    ipc_socket.notify({
                        'subject': 'meta.doc',
                        'actor': 'eye{}'.format(eye_id),
                        'doc': eye.__doc__
                    })
                elif subject.startswith('frame_publishing.started'):
                    should_publish_frames = True
                    frame_publish_format = notification.get('format', 'jpeg')
                elif subject.startswith('frame_publishing.stopped'):
                    should_publish_frames = False
                    frame_publish_format = 'jpeg'
                elif subject.startswith('start_eye_capture') and notification['target'] == g_pool.process:
                    replace_source(notification['name'],notification['args'])

                g_pool.capture.on_notify(notification)

            # Get an image from the grabber
            event = {}
            g_pool.capture.recent_events(event)
            frame = event.get('frame')
            g_pool.capture_manager.recent_events(event)
            if frame:
                f_width, f_height = g_pool.capture.frame_size
                if (g_pool.u_r.array_shape[0], g_pool.u_r.array_shape[1]) != (f_height, f_width):
                    g_pool.pupil_detector.on_resolution_change((g_pool.u_r.array_shape[1], g_pool.u_r.array_shape[0]), g_pool.capture.frame_size)
                    g_pool.u_r = UIRoi((f_height, f_width))
                if should_publish_frames:
                    try:
                        if frame_publish_format == "jpeg":
                            data = frame.jpeg_buffer
                        elif frame_publish_format == "yuv":
                            data = frame.yuv_buffer
                        elif frame_publish_format == "bgr":
                            data = frame.bgr
                        elif frame_publish_format == "gray":
                            data = frame.gray
                        else:
                            raise AttributeError()
                    except AttributeError:
                        pass
                    else:
                        pupil_socket.send('frame.eye.%s'%eye_id,{
                            'width': frame.width,
                            'height': frame.height,
                            'index': frame.index,
                            'timestamp': frame.timestamp,
                            'format': frame_publish_format,
                            '__raw_data__': [data]
                        })

                t = frame.timestamp
                dt, ts = t - ts, t
                try:
                    fps_graph.add(1./dt)
                except ZeroDivisionError:
                    pass

                if g_pool.writer:
                    g_pool.writer.write_video_frame(frame)

                # pupil ellipse detection
                result = g_pool.pupil_detector.detect(frame, g_pool.u_r, g_pool.display_mode == 'algorithm')
                result['id'] = eye_id

                # stream the result
                pupil_socket.send('pupil.%s'%eye_id,result)

            cpu_graph.update()

            # GL drawing
            if window_should_update():
                if is_window_visible(main_window):
                    glfw.glfwMakeContextCurrent(main_window)
                    clear_gl_screen()

                    if frame:
                        # switch to work in normalized coordinate space
                        if g_pool.display_mode == 'algorithm':
                            g_pool.image_tex.update_from_ndarray(frame.img)
                        elif g_pool.display_mode in ('camera_image', 'roi'):
                            g_pool.image_tex.update_from_ndarray(frame.gray)
                        else:
                            pass
                    glViewport(0, 0, *camera_render_size)
                    make_coord_system_norm_based(g_pool.flip)
                    g_pool.image_tex.draw()

                    f_width, f_height = g_pool.capture.frame_size
                    make_coord_system_pixel_based((f_height, f_width, 3), g_pool.flip)
                    if frame:
                        if result['method'] == '3d c++':
                            eye_ball = result['projected_sphere']
                            try:
                                pts = cv2.ellipse2Poly(
                                    (int(eye_ball['center'][0]),
                                     int(eye_ball['center'][1])),
                                    (int(eye_ball['axes'][0] / 2),
                                     int(eye_ball['axes'][1] / 2)),
                                    int(eye_ball['angle']), 0, 360, 8)
                            except ValueError as e:
                                pass
                            else:
                                draw_polyline(pts, 2, RGBA(0., .9, .1, result['model_confidence']))
                        if result['confidence'] > 0:
                            if 'ellipse' in result:
                                pts = cv2.ellipse2Poly(
                                    (int(result['ellipse']['center'][0]),
                                     int(result['ellipse']['center'][1])),
                                    (int(result['ellipse']['axes'][0] / 2),
                                     int(result['ellipse']['axes'][1] / 2)),
                                    int(result['ellipse']['angle']), 0, 360, 15)
                                confidence = result['confidence'] * 0.7
                                draw_polyline(pts, 1, RGBA(1., 0, 0, confidence))
                                draw_points([result['ellipse']['center']],
                                            size=20,
                                            color=RGBA(1., 0., 0., confidence),
                                            sharpness=1.)

                    glViewport(0, 0, *window_size)
                    make_coord_system_pixel_based((*window_size[::-1], 3), g_pool.flip)
                    # render graphs
                    fps_graph.draw()
                    cpu_graph.draw()

                    # render GUI
                    g_pool.gui.update()

                    glViewport(0, 0, *camera_render_size)
                    make_coord_system_pixel_based((f_height, f_width, 3), g_pool.flip)
                    # render the ROI
                    g_pool.u_r.draw(g_pool.gui.scale)
                    if g_pool.display_mode == 'roi':
                        g_pool.u_r.draw_points(g_pool.gui.scale)

                    glViewport(0, 0, *window_size)

                    make_coord_system_pixel_based((*window_size[::-1], 3), g_pool.flip)

                    # update screen
                    glfw.glfwSwapBuffers(main_window)
                glfw.glfwPollEvents()
                g_pool.pupil_detector.visualize()  # detector decides if we visualize or not

        # END while running

        # in case eye recording was still runnnig: Save&close
        if g_pool.writer:
            logger.info("Done recording eye.")
            g_pool.writer = None

        glfw.glfwRestoreWindow(main_window)  # need to do this for windows os
        # save session persistent settings
        session_settings['gui_scale'] = g_pool.gui_user_scale
        session_settings['roi'] = g_pool.u_r.get()
        session_settings['flip'] = g_pool.flip
        session_settings['display_mode'] = g_pool.display_mode
        session_settings['ui_config'] = g_pool.gui.configuration
        session_settings['capture_settings'] = g_pool.capture.class_name, g_pool.capture.get_init_dict()
        session_settings['capture_manager_settings'] = g_pool.capture_manager.class_name, g_pool.capture_manager.get_init_dict()
        session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
        session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
        session_settings['version'] = str(g_pool.version)
        session_settings['last_pupil_detector'] = g_pool.pupil_detector.__class__.__name__
        session_settings['pupil_detector_settings'] = g_pool.pupil_detector.get_settings()
        session_settings.close()

        g_pool.capture.deinit_ui()
        g_pool.capture_manager.deinit_ui()
        g_pool.pupil_detector.deinit_ui()

        g_pool.pupil_detector.cleanup()
        g_pool.capture_manager.cleanup()
        g_pool.capture.cleanup()

        glfw.glfwDestroyWindow(main_window)
        g_pool.gui.terminate()
        glfw.glfwTerminate()
        logger.info("Process shutting down.")
Ejemplo n.º 7
0
def world(
    timebase,
    eye_procs_alive,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    preferred_remote_port,
):
    """Reads world video and runs plugins.

    Creates a window, gl context.
    Grabs images from a capture.
    Maps pupil to gaze data
    Can run various plug-ins.

    Reacts to notifications:
        ``set_detection_mapping_mode``
        ``eye_process.started``
        ``start_plugin``

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``world_process.started``
        ``world_process.stopped``
        ``recording.should_stop``: Emits on camera failure
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events
               that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    from time import sleep
    import logging

    # networking
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    def launch_eye_process(eye_id, delay=0):
        n = {
            "subject": "eye_process.should_start.{}".format(eye_id),
            "eye_id": eye_id,
            "delay": delay,
        }
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {
            "subject": "eye_process.should_stop.{}".format(eye_id),
            "eye_id": eye_id,
            "delay": 0.2,
        }
        ipc_pub.notify(n)

    def start_stop_eye(eye_id, make_alive):
        if make_alive:
            launch_eye_process(eye_id)
        else:
            stop_eye_process(eye_id)

    def set_detection_mapping_mode(new_mode):
        n = {"subject": "set_detection_mapping_mode", "mode": new_mode}
        ipc_pub.notify(n)

    try:
        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        from tasklib.background.patches import IPCLoggingPatch

        IPCLoggingPatch.ipc_push_url = ipc_push_url

        # display
        import glfw
        from version_utils import VersionFormat
        from pyglui import ui, cygl, __version__ as pyglui_version

        assert VersionFormat(pyglui_version) >= VersionFormat(
            "1.24"), "pyglui out of date, please upgrade to newest version"
        from pyglui.cygl.utils import Named_Texture
        import gl_utils

        # helpers/utils
        from file_methods import Persistent_Dict
        from methods import normalize, denormalize, delta_t, get_system_info, timer
        from uvc import get_time_monotonic

        logger.info("Application Version: {}".format(version))
        logger.info("System Info: {}".format(get_system_info()))

        import audio

        # trigger pupil detector cpp build:
        import pupil_detectors

        del pupil_detectors

        # Plug-ins
        from plugin import (
            Plugin,
            System_Plugin_Base,
            Plugin_List,
            import_runtime_plugins,
        )
        from plugin_manager import Plugin_Manager
        from calibration_routines import (
            calibration_plugins,
            gaze_mapping_plugins,
            Calibration_Plugin,
            Gaze_Mapping_Plugin,
        )
        from eye_movement import Eye_Movement_Detector_Real_Time
        from recorder import Recorder
        from display_recent_gaze import Display_Recent_Gaze
        from time_sync import Time_Sync
        from pupil_remote import Pupil_Remote
        from pupil_groups import Pupil_Groups
        from surface_tracker import Surface_Tracker_Online
        from log_display import Log_Display
        from annotations import Annotation_Capture
        from log_history import Log_History
        from frame_publisher import Frame_Publisher
        from blink_detection import Blink_Detection
        from video_capture import (
            source_classes,
            manager_classes,
            Base_Manager,
            Base_Source,
        )
        from pupil_data_relay import Pupil_Data_Relay
        from remote_recorder import Remote_Recorder
        from audio_capture import Audio_Capture
        from accuracy_visualizer import Accuracy_Visualizer

        from system_graphs import System_Graphs
        from camera_intrinsics_estimation import Camera_Intrinsics_Estimation
        from hololens_relay import Hololens_Relay

        # UI Platform tweaks
        if platform.system() == "Linux":
            scroll_factor = 10.0
            window_position_default = (30, 30)
        elif platform.system() == "Windows":
            scroll_factor = 10.0
            window_position_default = (8, 90)
        else:
            scroll_factor = 1.0
            window_position_default = (0, 0)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None
        hdpi_factor = 1.0

        # g_pool holds variables for this process they are accessible to all plugins
        g_pool = SimpleNamespace()
        g_pool.app = "capture"
        g_pool.process = "world"
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.timebase = timebase
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.eye_procs_alive = eye_procs_alive
        g_pool.preferred_remote_port = preferred_remote_port

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # manage plugins
        runtime_plugins = import_runtime_plugins(
            os.path.join(g_pool.user_dir, "plugins"))
        user_plugins = [
            Audio_Capture,
            Pupil_Groups,
            Frame_Publisher,
            Pupil_Remote,
            Time_Sync,
            Surface_Tracker_Online,
            Annotation_Capture,
            Log_History,
            Eye_Movement_Detector_Real_Time,
            Blink_Detection,
            Remote_Recorder,
            Accuracy_Visualizer,
            Camera_Intrinsics_Estimation,
            Hololens_Relay,
        ]

        if platform.system() != "Windows":
            # Head pose tracking is currently not available on Windows
            from head_pose_tracker.online_head_pose_tracker import (
                Online_Head_Pose_Tracker, )

            user_plugins.append(Online_Head_Pose_Tracker)

        system_plugins = ([
            Log_Display,
            Display_Recent_Gaze,
            Recorder,
            Pupil_Data_Relay,
            Plugin_Manager,
            System_Graphs,
        ] + manager_classes + source_classes)
        plugins = (system_plugins + user_plugins + runtime_plugins +
                   calibration_plugins + gaze_mapping_plugins)
        user_plugins += [
            p for p in runtime_plugins if not isinstance(
                p,
                (
                    Base_Manager,
                    Base_Source,
                    System_Plugin_Base,
                    Calibration_Plugin,
                    Gaze_Mapping_Plugin,
                ),
            )
        ]
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}

        default_capture_settings = {
            "preferred_names": [
                "Pupil Cam1 ID2",
                "Logitech Camera",
                "(046d:081d)",
                "C510",
                "B525",
                "C525",
                "C615",
                "C920",
                "C930e",
            ],
            "frame_size": (1280, 720),
            "frame_rate":
            30,
        }

        default_plugins = [
            ("UVC_Source", default_capture_settings),
            ("Pupil_Data_Relay", {}),
            ("UVC_Manager", {}),
            ("Log_Display", {}),
            ("Dummy_Gaze_Mapper", {}),
            ("Display_Recent_Gaze", {}),
            ("Screen_Marker_Calibration", {}),
            ("Recorder", {}),
            ("Pupil_Remote", {}),
            ("Accuracy_Visualizer", {}),
            ("Plugin_Manager", {}),
            ("System_Graphs", {}),
        ]

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size
            nonlocal hdpi_factor
            if w == 0 or h == 0:
                return
            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            camera_render_size = w - int(icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()

            for p in g_pool.plugins:
                p.on_window_resize(window, *camera_render_size)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = x * hdpi_factor, y * hdpi_factor
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode("utf-8") for x in range(count)]
            # call `on_drop` callbacks until a plugin indicates
            # that it has consumed the event (by returning True)
            any(p.on_drop(paths) for p in g_pool.plugins)

        tick = delta_t()

        def get_dt():
            return next(tick)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, "user_settings_world"))
        if VersionFormat(session_settings.get("version",
                                              "0.0")) != g_pool.version:
            logger.info(
                "Session setting are from a different version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.min_calibration_confidence = session_settings.get(
            "min_calibration_confidence", 0.8)
        g_pool.detection_mapping_mode = session_settings.get(
            "detection_mapping_mode", "3d")
        g_pool.active_calibration_plugin = None
        g_pool.active_gaze_mapping_plugin = None
        g_pool.capture = None

        audio.audio_mode = session_settings.get("audio_mode",
                                                audio.default_audio_mode)

        def handle_notifications(noti):
            subject = noti["subject"]
            if subject == "set_detection_mapping_mode":
                if noti["mode"] == "2d":
                    if ("Vector_Gaze_Mapper"
                            in g_pool.active_gaze_mapping_plugin.class_name):
                        logger.warning(
                            "The gaze mapper is not supported in 2d mode. Please recalibrate."
                        )
                        g_pool.plugins.add(
                            g_pool.plugin_by_name["Dummy_Gaze_Mapper"])
                g_pool.detection_mapping_mode = noti["mode"]
            elif subject == "start_plugin":
                g_pool.plugins.add(g_pool.plugin_by_name[noti["name"]],
                                   args=noti.get("args", {}))
            elif subject == "stop_plugin":
                for p in g_pool.plugins:
                    if p.class_name == noti["name"]:
                        p.alive = False
                        g_pool.plugins.clean()
            elif subject == "eye_process.started":
                noti = {
                    "subject": "set_detection_mapping_mode",
                    "mode": g_pool.detection_mapping_mode,
                }
                ipc_pub.notify(noti)
            elif subject == "set_min_calibration_confidence":
                g_pool.min_calibration_confidence = noti["value"]
            elif subject.startswith("meta.should_doc"):
                ipc_pub.notify({
                    "subject": "meta.doc",
                    "actor": g_pool.app,
                    "doc": world.__doc__
                })
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({
                            "subject": "meta.doc",
                            "actor": p.class_name,
                            "doc": p.on_notify.__doc__,
                        })
            elif subject == "world_process.adapt_window_size":
                set_window_size()

        width, height = session_settings.get("window_size",
                                             (1280 + icon_bar_width, 720))

        # window and gl setup
        glfw.glfwInit()
        main_window = glfw.glfwCreateWindow(width, height,
                                            "Pupil Capture - World")
        window_pos = session_settings.get("window_position",
                                          window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            window_size = (
                camera_render_size[0] +
                int(icon_bar_width * g_pool.gui_user_scale * hdpi_factor),
                glfw.glfwGetFramebufferSize(main_window)[1],
            )
            logger.warning(icon_bar_width * g_pool.gui_user_scale *
                           hdpi_factor)
            glfw.glfwSetWindowSize(main_window, *window_size)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Capture.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({"subject": "clear_settings_process.should_start"})
            ipc_pub.notify({
                "subject": "world_process.should_start",
                "delay": 2.0
            })

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is opened, the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get("gui_scale", 1.0)
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-400, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos="left")
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos="hidden")
        g_pool.quickbar = ui.Stretching_Menu("Quick Bar", (0, 100),
                                             (120, -100))
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        general_settings = ui.Growing_Menu("General", header_pos="headline")
        general_settings.append(
            ui.Selector(
                "gui_user_scale",
                g_pool,
                setter=set_scale,
                selection=[0.6, 0.8, 1.0, 1.2, 1.4],
                label="Interface size",
            ))

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width += int(icon_bar_width * g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)
            on_resize(main_window, f_width, f_height)

        general_settings.append(ui.Button("Reset window size",
                                          set_window_size))
        general_settings.append(
            ui.Selector("audio_mode", audio, selection=audio.audio_modes))
        general_settings.append(
            ui.Selector(
                "detection_mapping_mode",
                g_pool,
                label="detection & mapping mode",
                setter=set_detection_mapping_mode,
                selection=["disabled", "2d", "3d"],
            ))
        general_settings.append(
            ui.Switch(
                "eye0_process",
                label="Detect eye 0",
                setter=lambda alive: start_stop_eye(0, alive),
                getter=lambda: eye_procs_alive[0].value,
            ))
        general_settings.append(
            ui.Switch(
                "eye1_process",
                label="Detect eye 1",
                setter=lambda alive: start_stop_eye(1, alive),
                getter=lambda: eye_procs_alive[1].value,
            ))

        general_settings.append(
            ui.Info_Text("Capture Version: {}".format(g_pool.version)))
        general_settings.append(
            ui.Button("Restart with default settings", reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        # plugins that are loaded based on user settings from previous session
        g_pool.plugins = Plugin_List(
            g_pool, session_settings.get("loaded_plugins", default_plugins))

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        toggle_general_settings(True)

        # now that we have a proper window we can load the last gui configuration
        g_pool.gui.configuration = session_settings.get("ui_config", {})

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        # trigger setup of window and gl sizes
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        if session_settings.get("eye1_process_alive", True):
            launch_eye_process(1, delay=0.6)
        if session_settings.get("eye0_process_alive", True):
            launch_eye_process(0, delay=0.3)

        ipc_pub.notify({"subject": "world_process.started"})
        logger.warning("Process started.")

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            # a dictionary that allows plugins to post and read events
            events = {}
            # report time between now and the last loop interation
            events["dt"] = get_dt()

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            # "blacklisted" events that were already sent
            del events["pupil"]
            del events["gaze"]
            # delete if exists. More expensive than del, so only use it when key might not exist
            events.pop("annotation", None)

            # send new events to ipc:
            if "frame" in events:
                del events["frame"]  # send explicitly with frame publisher
            if "depth_frame" in events:
                del events["depth_frame"]
            if "audio_packets" in events:
                del events["audio_packets"]
            del events["dt"]  # no need to send this
            for data in events.values():
                assert isinstance(data, (list, tuple))
                for d in data:
                    ipc_pub.send(d)

            glfw.glfwMakeContextCurrent(main_window)
            # render visual feedback from loaded plugins
            glfw.glfwPollEvents()
            if window_should_update() and gl_utils.is_window_visible(
                    main_window):

                gl_utils.glViewport(0, 0, *camera_render_size)
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)
                try:
                    clipboard = glfw.glfwGetClipboardString(
                        main_window).decode()
                except AttributeError:  # clipboard is None, might happen on startup
                    clipboard = ""
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.glfwSetClipboardString(main_window,
                                                user_input.clipboard.encode())

                for button, action, mods in user_input.buttons:
                    x, y = glfw.glfwGetCursorPos(main_window)
                    pos = x * hdpi_factor, y * hdpi_factor
                    pos = normalize(pos, camera_render_size)
                    # Position in img pixels
                    pos = denormalize(pos, g_pool.capture.frame_size)

                    # call `on_click` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(
                        p.on_click(pos, button, action)
                        for p in g_pool.plugins)

                for key, scancode, action, mods in user_input.keys:
                    # call `on_key` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(
                        p.on_key(key, scancode, action, mods)
                        for p in g_pool.plugins)

                for char_ in user_input.chars:
                    # call `char_` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(p.on_char(char_) for p in g_pool.plugins)

                glfw.glfwSwapBuffers(main_window)

        glfw.glfwRestoreWindow(main_window)  # need to do this for windows os
        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        session_settings["gui_scale"] = g_pool.gui_user_scale
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["window_position"] = glfw.glfwGetWindowPos(
            main_window)
        session_settings["version"] = str(g_pool.version)
        session_settings["eye0_process_alive"] = eye_procs_alive[0].value
        session_settings["eye1_process_alive"] = eye_procs_alive[1].value
        session_settings[
            "min_calibration_confidence"] = g_pool.min_calibration_confidence
        session_settings[
            "detection_mapping_mode"] = g_pool.detection_mapping_mode
        session_settings["audio_mode"] = audio.audio_mode

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            session_settings["window_size"] = session_window_size

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)
        glfw.glfwTerminate()

    except:
        import traceback

        trace = traceback.format_exc()
        logger.error("Process Capture crashed with trace:\n{}".format(trace))

    finally:
        # shut down eye processes:
        stop_eye_process(0)
        stop_eye_process(1)

        logger.info("Process shutting down.")
        ipc_pub.notify({"subject": "world_process.stopped"})
        sleep(1.0)
Ejemplo n.º 8
0
def eye(
    timebase,
    is_alive_flag,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    eye_id,
    overwrite_cap_settings=None,
    hide_ui=False,
):
    """reads eye video and detects the pupil.

    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates.

    Reacts to notifications:
        ``set_detection_mapping_mode``: Sets detection method
        ``eye_process.should_stop``: Stops the eye process
        ``recording.started``: Starts recording eye video
        ``recording.stopped``: Stops recording eye video
        ``frame_publishing.started``: Starts frame publishing
        ``frame_publishing.stopped``: Stops frame publishing
        ``start_eye_plugin``: Start plugins in eye process

    Emits notifications:
        ``eye_process.started``: Eye process started
        ``eye_process.stopped``: Eye process stopped

    Emits data:
        ``pupil.<eye id>``: Pupil data for eye with id ``<eye id>``
        ``frame.eye.<eye id>``: Eye frames with id ``<eye id>``
    """

    # We deferr the imports becasue of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    import zmq
    import zmq_tools

    zmq_ctx = zmq.Context()
    ipc_socket = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    pupil_socket = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    # logging setup
    import logging

    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    if is_alive_flag.value:
        # indicates eye process that this is a duplicated startup
        logger.warning("Aborting redundant eye process startup")
        return

    with Is_Alive_Manager(is_alive_flag, ipc_socket, eye_id, logger):
        # general imports
        import traceback
        import numpy as np
        import cv2

        # display
        import glfw
        from pyglui import ui, graph, cygl
        from pyglui.cygl.utils import draw_points, RGBA, draw_polyline
        from pyglui.cygl.utils import Named_Texture
        from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen
        from gl_utils import make_coord_system_pixel_based
        from gl_utils import make_coord_system_norm_based
        from gl_utils import is_window_visible, glViewport
        from ui_roi import UIRoi

        # monitoring
        import psutil

        # Plug-ins
        from plugin import Plugin_List

        # helpers/utils
        from uvc import get_time_monotonic
        from file_methods import Persistent_Dict
        from version_utils import VersionFormat
        from methods import normalize, denormalize, timer
        from av_writer import JPEG_Writer, MPEG_Writer
        from ndsi import H264Writer
        from video_capture import source_classes, manager_classes

        from background_helper import IPC_Logging_Task_Proxy
        from pupil_detector_plugins import available_detector_plugins
        from pupil_detector_plugins.manager import PupilDetectorManager

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        def interrupt_handler(sig, frame):
            import traceback

            trace = traceback.format_stack(f=frame)
            logger.debug(f"Caught signal {sig} in:\n" + "".join(trace))
            # NOTE: Interrupt is handled in world/service/player which are responsible for
            # shutting down the eye process properly

        signal.signal(signal.SIGINT, interrupt_handler)

        # UI Platform tweaks
        if platform.system() == "Linux":
            scroll_factor = 10.0
            window_position_default = (600, 300 * eye_id + 30)
        elif platform.system() == "Windows":
            scroll_factor = 10.0
            window_position_default = (600, 90 + 300 * eye_id)
        else:
            scroll_factor = 1.0
            window_position_default = (600, 300 * eye_id)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None
        hdpi_factor = 1.0

        # g_pool holds variables for this process
        g_pool = SimpleNamespace()

        # make some constants avaiable
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.app = "capture"
        g_pool.eye_id = eye_id
        g_pool.process = f"eye{eye_id}"
        g_pool.timebase = timebase

        g_pool.ipc_pub = ipc_socket

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        default_detector_cls, available_detectors = available_detector_plugins(
        )
        plugins = (manager_classes + source_classes + available_detectors +
                   [PupilDetectorManager])
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}

        preferred_names = [
            f"Pupil Cam3 ID{eye_id}",
            f"Pupil Cam2 ID{eye_id}",
            f"Pupil Cam1 ID{eye_id}",
        ]
        if eye_id == 0:
            preferred_names += ["HD-6000"]
        default_capture_settings = (
            "UVC_Source",
            {
                "preferred_names": preferred_names,
                "frame_size": (320, 240),
                "frame_rate": 120,
            },
        )

        default_plugins = [
            # TODO: extend with plugins
            default_capture_settings,
            ("UVC_Manager", {}),
            # Detector needs to be loaded first to set `g_pool.pupil_detector`
            (default_detector_cls.__name__, {}),
            ("PupilDetectorManager", {}),
        ]

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size
            nonlocal hdpi_factor

            active_window = glfw.glfwGetCurrentContext()
            glfw.glfwMakeContextCurrent(window)
            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            camera_render_size = w - int(icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = hdpi_factor
                g.adjust_window_size(w, h)
            adjust_gl_view(w, h)
            glfw.glfwMakeContextCurrent(active_window)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_iconify(window, iconified):
            g_pool.iconified = iconified

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x *= hdpi_factor
            y *= hdpi_factor
            g_pool.gui.update_mouse(x, y)

            if g_pool.u_r.active_edit_pt:
                pos = normalize((x, y), camera_render_size)
                if g_pool.flip:
                    pos = 1 - pos[0], 1 - pos[1]
                pos = denormalize(pos, g_pool.capture.frame_size)
                g_pool.u_r.move_vertex(g_pool.u_r.active_pt_idx, pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode("utf-8") for x in range(count)]
            for plugin in g_pool.plugins:
                if plugin.on_drop(paths):
                    break

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir,
                         "user_settings_eye{}".format(eye_id)))
        if VersionFormat(session_settings.get("version",
                                              "0.0")) != g_pool.version:
            logger.info(
                "Session setting are from a different version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.iconified = False
        g_pool.capture = None
        g_pool.flip = session_settings.get("flip", False)
        g_pool.display_mode = session_settings.get("display_mode",
                                                   "camera_image")
        g_pool.display_mode_info_text = {
            "camera_image":
            "Raw eye camera image. This uses the least amount of CPU power",
            "roi":
            "Click and drag on the blue circles to adjust the region of interest. The region should be as small as possible, but large enough to capture all pupil movements.",
            "algorithm":
            "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters within the Pupil Detection menu below.",
        }

        def set_display_mode_info(val):
            g_pool.display_mode = val
            g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # Initialize glfw
        glfw.glfwInit()
        if hide_ui:
            glfw.glfwWindowHint(glfw.GLFW_VISIBLE, 0)  # hide window
        title = "Pupil Capture - eye {}".format(eye_id)

        width, height = session_settings.get("window_size",
                                             (640 + icon_bar_width, 480))

        main_window = glfw.glfwCreateWindow(width, height, title, None, None)
        window_pos = session_settings.get("window_position",
                                          window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()

        # UI callback functions
        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        # gl_state settings
        basic_gl_setup()
        g_pool.image_tex = Named_Texture()
        g_pool.image_tex.update_from_ndarray(
            np.ones((1, 1), dtype=np.uint8) + 125)

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get("gui_scale", 1.0)
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-500, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos="left")
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos="hidden")
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)

        general_settings = ui.Growing_Menu("General", header_pos="headline")
        general_settings.append(
            ui.Selector(
                "gui_user_scale",
                g_pool,
                setter=set_scale,
                selection=[0.8, 0.9, 1.0, 1.1, 1.2],
                label="Interface Size",
            ))

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width *= 2
            f_height *= 2
            f_width += int(icon_bar_width * g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)

        def uroi_on_mouse_button(button, action, mods):
            if g_pool.display_mode == "roi":
                if action == glfw.GLFW_RELEASE and g_pool.u_r.active_edit_pt:
                    g_pool.u_r.active_edit_pt = False
                    # if the roi interacts we dont want
                    # the gui to interact as well
                    return
                elif action == glfw.GLFW_PRESS:
                    x, y = glfw.glfwGetCursorPos(main_window)
                    # pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
                    x *= hdpi_factor
                    y *= hdpi_factor
                    pos = normalize((x, y), camera_render_size)
                    if g_pool.flip:
                        pos = 1 - pos[0], 1 - pos[1]
                    # Position in img pixels
                    pos = denormalize(
                        pos,
                        g_pool.capture.frame_size)  # Position in img pixels
                    if g_pool.u_r.mouse_over_edit_pt(pos,
                                                     g_pool.u_r.handle_size,
                                                     g_pool.u_r.handle_size):
                        # if the roi interacts we dont want
                        # the gui to interact as well
                        return

        general_settings.append(ui.Button("Reset window size",
                                          set_window_size))
        general_settings.append(
            ui.Switch("flip", g_pool, label="Flip image display"))
        general_settings.append(
            ui.Selector(
                "display_mode",
                g_pool,
                setter=set_display_mode_info,
                selection=["camera_image", "roi", "algorithm"],
                labels=["Camera Image", "ROI", "Algorithm"],
                label="Mode",
            ))
        g_pool.display_mode_info = ui.Info_Text(
            g_pool.display_mode_info_text[g_pool.display_mode])

        general_settings.append(g_pool.display_mode_info)

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)
        toggle_general_settings(False)

        plugins_to_load = session_settings.get("loaded_plugins",
                                               default_plugins)
        if overwrite_cap_settings:
            # Ensure that overwrite_cap_settings takes preference over source plugins
            # with incorrect settings that were loaded from session settings.
            plugins_to_load.append(overwrite_cap_settings)

        g_pool.plugins = Plugin_List(g_pool, plugins_to_load)

        g_pool.writer = None

        g_pool.u_r = UIRoi(
            (g_pool.capture.frame_size[1], g_pool.capture.frame_size[0]))
        roi_user_settings = session_settings.get("roi")
        if roi_user_settings and tuple(
                roi_user_settings[-1]) == g_pool.u_r.get()[-1]:
            g_pool.u_r.set(roi_user_settings)

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        # load last gui configuration
        g_pool.gui.configuration = session_settings.get("ui_config", {})

        # set up performance graphs
        pid = os.getpid()
        ps = psutil.Process(pid)
        ts = g_pool.get_timestamp()

        cpu_graph = graph.Bar_Graph()
        cpu_graph.pos = (20, 50)
        cpu_graph.update_fn = ps.cpu_percent
        cpu_graph.update_rate = 5
        cpu_graph.label = "CPU %0.1f"

        fps_graph = graph.Bar_Graph()
        fps_graph.pos = (140, 50)
        fps_graph.update_rate = 5
        fps_graph.label = "%0.0f FPS"
        g_pool.graphs = [cpu_graph, fps_graph]

        # set the last saved window size
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        should_publish_frames = False
        frame_publish_format = "jpeg"
        frame_publish_format_recent_warning = False

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        logger.warning("Process started.")

        frame = None

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            if notify_sub.new_data:
                t, notification = notify_sub.recv()
                subject = notification["subject"]
                if subject.startswith("eye_process.should_stop"):
                    if notification["eye_id"] == eye_id:
                        break
                elif subject == "recording.started":
                    if notification["record_eye"] and g_pool.capture.online:
                        record_path = notification["rec_path"]
                        raw_mode = notification["compression"]
                        start_time_synced = notification["start_time_synced"]
                        logger.info(
                            "Will save eye video to: {}".format(record_path))
                        video_path = os.path.join(record_path,
                                                  "eye{}.mp4".format(eye_id))
                        if raw_mode and frame and g_pool.capture.jpeg_support:
                            g_pool.writer = JPEG_Writer(
                                video_path, start_time_synced)
                        elif hasattr(g_pool.capture._recent_frame,
                                     "h264_buffer"):
                            g_pool.writer = H264Writer(
                                video_path,
                                g_pool.capture.frame_size[0],
                                g_pool.capture.frame_size[1],
                                g_pool.capture.frame_rate,
                            )
                        else:
                            g_pool.writer = MPEG_Writer(
                                video_path, start_time_synced)
                elif subject == "recording.stopped":
                    if g_pool.writer:
                        logger.info("Done recording.")
                        try:
                            g_pool.writer.release()
                        except RuntimeError:
                            logger.error("No eye video recorded")
                        g_pool.writer = None
                elif subject.startswith("meta.should_doc"):
                    ipc_socket.notify({
                        "subject": "meta.doc",
                        "actor": "eye{}".format(eye_id),
                        "doc": eye.__doc__,
                    })
                elif subject.startswith("frame_publishing.started"):
                    should_publish_frames = True
                    frame_publish_format = notification.get("format", "jpeg")
                elif subject.startswith("frame_publishing.stopped"):
                    should_publish_frames = False
                    frame_publish_format = "jpeg"
                elif (subject.startswith("start_eye_plugin")
                      and notification["target"] == g_pool.process):
                    try:
                        g_pool.plugins.add(
                            g_pool.plugin_by_name[notification["name"]],
                            notification.get("args", {}),
                        )
                    except KeyError as err:
                        logger.error(f"Attempt to load unknown plugin: {err}")

                for plugin in g_pool.plugins:
                    plugin.on_notify(notification)

            event = {}
            for plugin in g_pool.plugins:
                plugin.recent_events(event)

            frame = event.get("frame")
            if frame:
                f_width, f_height = g_pool.capture.frame_size
                if (g_pool.u_r.array_shape[0], g_pool.u_r.array_shape[1]) != (
                        f_height,
                        f_width,
                ):
                    g_pool.pupil_detector.on_resolution_change(
                        (g_pool.u_r.array_shape[1], g_pool.u_r.array_shape[0]),
                        g_pool.capture.frame_size,
                    )
                    g_pool.u_r = UIRoi((f_height, f_width))
                if should_publish_frames:
                    try:
                        if frame_publish_format == "jpeg":
                            data = frame.jpeg_buffer
                        elif frame_publish_format == "yuv":
                            data = frame.yuv_buffer
                        elif frame_publish_format == "bgr":
                            data = frame.bgr
                        elif frame_publish_format == "gray":
                            data = frame.gray
                        assert data is not None
                    except (AttributeError, AssertionError, NameError):
                        if not frame_publish_format_recent_warning:
                            frame_publish_format_recent_warning = True
                            logger.warning(
                                '{}s are not compatible with format "{}"'.
                                format(type(frame), frame_publish_format))
                    else:
                        frame_publish_format_recent_warning = False
                        pupil_socket.send({
                            "topic":
                            "frame.eye.{}".format(eye_id),
                            "width":
                            frame.width,
                            "height":
                            frame.height,
                            "index":
                            frame.index,
                            "timestamp":
                            frame.timestamp,
                            "format":
                            frame_publish_format,
                            "__raw_data__": [data],
                        })

                t = frame.timestamp
                dt, ts = t - ts, t
                try:
                    fps_graph.add(1.0 / dt)
                except ZeroDivisionError:
                    pass

                if g_pool.writer:
                    g_pool.writer.write_video_frame(frame)

                result = event.get("pupil_detection_result", None)
                if result is not None:
                    pupil_socket.send(result)

            cpu_graph.update()

            # GL drawing
            if window_should_update():
                if is_window_visible(main_window):
                    glfw.glfwMakeContextCurrent(main_window)
                    clear_gl_screen()

                    glViewport(0, 0, *camera_render_size)
                    for p in g_pool.plugins:
                        p.gl_display()

                    glViewport(0, 0, *camera_render_size)
                    # render the ROI
                    g_pool.u_r.draw(g_pool.gui.scale)
                    if g_pool.display_mode == "roi":
                        g_pool.u_r.draw_points(g_pool.gui.scale)

                    glViewport(0, 0, *window_size)
                    # render graphs
                    fps_graph.draw()
                    cpu_graph.draw()

                    # render GUI
                    try:
                        clipboard = glfw.glfwGetClipboardString(
                            main_window).decode()
                    except AttributeError:  # clipboard is None, might happen on startup
                        clipboard = ""
                    g_pool.gui.update_clipboard(clipboard)
                    user_input = g_pool.gui.update()
                    if user_input.clipboard != clipboard:
                        # only write to clipboard if content changed
                        glfw.glfwSetClipboardString(
                            main_window, user_input.clipboard.encode())

                    for button, action, mods in user_input.buttons:
                        x, y = glfw.glfwGetCursorPos(main_window)
                        pos = x * hdpi_factor, y * hdpi_factor
                        pos = normalize(pos, camera_render_size)
                        # Position in img pixels
                        pos = denormalize(pos, g_pool.capture.frame_size)

                        for plugin in g_pool.plugins:
                            if plugin.on_click(pos, button, action):
                                break

                    for key, scancode, action, mods in user_input.keys:
                        for plugin in g_pool.plugins:
                            if plugin.on_key(key, scancode, action, mods):
                                break

                    for char_ in user_input.chars:
                        for plugin in g_pool.plugins:
                            if plugin.on_char(char_):
                                break

                    # update screen
                    glfw.glfwSwapBuffers(main_window)
                glfw.glfwPollEvents()

        # END while running

        # in case eye recording was still runnnig: Save&close
        if g_pool.writer:
            logger.info("Done recording eye.")
            g_pool.writer.release()
            g_pool.writer = None

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        # save session persistent settings
        session_settings["gui_scale"] = g_pool.gui_user_scale
        session_settings["roi"] = g_pool.u_r.get()
        session_settings["flip"] = g_pool.flip
        session_settings["display_mode"] = g_pool.display_mode
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["version"] = str(g_pool.version)

        if not hide_ui:
            glfw.glfwRestoreWindow(
                main_window)  # need to do this for windows os
            session_settings["window_position"] = glfw.glfwGetWindowPos(
                main_window)
            session_window_size = glfw.glfwGetWindowSize(main_window)
            if 0 not in session_window_size:
                session_settings["window_size"] = session_window_size

        session_settings.close()

        for plugin in g_pool.plugins:
            plugin.alive = False
        g_pool.plugins.clean()

        glfw.glfwDestroyWindow(main_window)
        g_pool.gui.terminate()
        glfw.glfwTerminate()
        logger.info("Process shutting down.")
Ejemplo n.º 9
0
def eye(timebase,
        is_alive_flag,
        ipc_pub_url,
        ipc_sub_url,
        ipc_push_url,
        user_dir,
        version,
        eye_id,
        overwrite_cap_settings=None):
    """reads eye video and detects the pupil.

    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates.

    Reacts to notifications:
       ``set_detection_mapping_mode``: Sets detection method
       ``eye_process.should_stop``: Stops the eye process
       ``recording.started``: Starts recording eye video
       ``recording.stopped``: Stops recording eye video
       ``frame_publishing.started``: Starts frame publishing
       ``frame_publishing.stopped``: Stops frame publishing

    Emits notifications:
        ``eye_process.started``: Eye process started
        ``eye_process.stopped``: Eye process stopped

    Emits data:
        ``pupil.<eye id>``: Pupil data for eye with id ``<eye id>``
        ``frame.eye.<eye id>``: Eye frames with id ``<eye id>``
    """

    # We deferr the imports becasue of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    import zmq
    import zmq_tools
    zmq_ctx = zmq.Context()
    ipc_socket = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    pupil_socket = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    with Is_Alive_Manager(is_alive_flag, ipc_socket, eye_id):

        #logging setup
        import logging
        logging.getLogger("OpenGL").setLevel(logging.ERROR)
        logger = logging.getLogger()
        logger.handlers = []
        logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
        # create logger for the context of this function
        logger = logging.getLogger(__name__)

        #general imports
        import numpy as np
        import cv2

        #display
        import glfw
        from pyglui import ui, graph, cygl
        from pyglui.cygl.utils import draw_points, RGBA, draw_polyline, Named_Texture, Sphere
        import OpenGL.GL as gl
        from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen, make_coord_system_pixel_based, make_coord_system_norm_based, make_coord_system_eye_camera_based, is_window_visible
        from ui_roi import UIRoi
        #monitoring
        import psutil
        import math

        # helpers/utils
        from uvc import get_time_monotonic, StreamError
        from file_methods import Persistent_Dict
        from version_utils import VersionFormat
        from methods import normalize, denormalize, Roi, timer
        from av_writer import JPEG_Writer, AV_Writer

        from video_capture import InitialisationError, StreamError, Fake_Source, EndofVideoFileError, source_classes, manager_classes
        source_by_name = {src.class_name(): src for src in source_classes}

        # Pupil detectors
        from pupil_detectors import Detector_2D, Detector_3D
        pupil_detectors = {
            Detector_2D.__name__: Detector_2D,
            Detector_3D.__name__: Detector_3D
        }

        #UI Platform tweaks
        if platform.system() == 'Linux':
            scroll_factor = 10.0
            window_position_default = (600, 300 * eye_id)
        elif platform.system() == 'Windows':
            scroll_factor = 1.0
            window_position_default = (600, 31 + 300 * eye_id)
        else:
            scroll_factor = 1.0
            window_position_default = (600, 300 * eye_id)

        #g_pool holds variables for this process
        g_pool = Global_Container()

        # make some constants avaiable
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.app = 'capture'
        g_pool.timebase = timebase

        g_pool.ipc_pub = ipc_socket

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # Callback functions
        def on_resize(window, w, h):
            if is_window_visible(window):
                active_window = glfw.glfwGetCurrentContext()
                glfw.glfwMakeContextCurrent(window)
                g_pool.gui.update_window(w, h)
                graph.adjust_size(w, h)
                adjust_gl_view(w, h)
                glfw.glfwMakeContextCurrent(active_window)

        def on_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_char(window, char):
            g_pool.gui.update_char(char)

        def on_iconify(window, iconified):
            g_pool.iconified = iconified

        def on_button(window, button, action, mods):
            if g_pool.display_mode == 'roi':
                if action == glfw.GLFW_RELEASE and g_pool.u_r.active_edit_pt:
                    g_pool.u_r.active_edit_pt = False
                    return  # if the roi interacts we dont what the gui to interact as well
                elif action == glfw.GLFW_PRESS:
                    pos = glfw.glfwGetCursorPos(window)
                    pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
                    if g_pool.flip:
                        pos = 1 - pos[0], 1 - pos[1]
                    pos = denormalize(
                        pos,
                        (frame.width, frame.height))  # Position in img pixels
                    if g_pool.u_r.mouse_over_edit_pt(
                            pos, g_pool.u_r.handle_size + 40,
                            g_pool.u_r.handle_size + 40):
                        return  # if the roi interacts we dont what the gui to interact as well

            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            hdpi_factor = float(
                glfw.glfwGetFramebufferSize(window)[0] /
                glfw.glfwGetWindowSize(window)[0])
            g_pool.gui.update_mouse(x * hdpi_factor, y * hdpi_factor)

            if g_pool.u_r.active_edit_pt:
                pos = normalize((x, y), glfw.glfwGetWindowSize(main_window))
                if g_pool.flip:
                    pos = 1 - pos[0], 1 - pos[1]
                pos = denormalize(pos, (frame.width, frame.height))
                g_pool.u_r.move_vertex(g_pool.u_r.active_pt_idx, pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, 'user_settings_eye%s' % eye_id))
        if session_settings.get("version",
                                VersionFormat('0.0')) < g_pool.version:
            logger.info(
                "Session setting are from older version of this app. I will not use those."
            )
            session_settings.clear()

        capture_manager_settings = session_settings.get(
            'capture_manager_settings', ('UVC_Manager', {}))

        if eye_id == 0:
            cap_src = [
                "Pupil Cam1 ID0", "HD-6000", "Integrated Camera",
                "HD USB Camera", "USB 2.0 Camera"
            ]
        else:
            cap_src = ["Pupil Cam1 ID1", "HD-6000", "Integrated Camera"]

        # Initialize capture
        default_settings = {
            'source_class_name': 'UVC_Source',
            'preferred_names': cap_src,
            'frame_size': (640, 480),
            'frame_rate': 90
        }
        settings = overwrite_cap_settings or session_settings.get(
            'capture_settings', default_settings)
        try:
            cap = source_by_name[settings['source_class_name']](g_pool,
                                                                **settings)
        except (KeyError, InitialisationError) as e:
            if isinstance(e, KeyError):
                logger.warning(
                    'Incompatible capture setting encountered. Falling back to fake source.'
                )
            cap = Fake_Source(g_pool, **settings)

        g_pool.iconified = False
        g_pool.capture = cap
        g_pool.capture_manager = None
        g_pool.flip = session_settings.get('flip', False)
        g_pool.display_mode = session_settings.get('display_mode',
                                                   'camera_image')
        g_pool.display_mode_info_text = {
            'camera_image':
            "Raw eye camera image. This uses the least amount of CPU power",
            'roi':
            "Click and drag on the blue circles to adjust the region of interest. The region should be as small as possible, but large enough to capture all pupil movements.",
            'algorithm':
            "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters within the Pupil Detection menu below."
        }

        g_pool.u_r = UIRoi(
            (g_pool.capture.frame_size[1], g_pool.capture.frame_size[0]))
        roi_user_settings = session_settings.get('roi')
        if roi_user_settings and roi_user_settings[-1] == g_pool.u_r.get()[-1]:
            g_pool.u_r.set(roi_user_settings)

        writer = None

        pupil_detector_settings = session_settings.get(
            'pupil_detector_settings', None)
        last_pupil_detector = pupil_detectors[session_settings.get(
            'last_pupil_detector', Detector_2D.__name__)]
        g_pool.pupil_detector = last_pupil_detector(g_pool,
                                                    pupil_detector_settings)

        # UI callback functions
        def set_scale(new_scale):
            g_pool.gui.scale = new_scale
            g_pool.gui.collect_menus()

        def set_display_mode_info(val):
            g_pool.display_mode = val
            g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

        def set_detector(new_detector):
            g_pool.pupil_detector.cleanup()
            g_pool.pupil_detector = new_detector(g_pool)
            g_pool.pupil_detector.init_gui(g_pool.sidebar)

        # Initialize glfw
        glfw.glfwInit()
        title = "eye %s" % eye_id
        width, height = session_settings.get('window_size',
                                             g_pool.capture.frame_size)
        main_window = glfw.glfwCreateWindow(width, height, title, None, None)
        window_pos = session_settings.get('window_position',
                                          window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()

        # gl_state settings
        basic_gl_setup()
        g_pool.image_tex = Named_Texture()
        glfw.glfwSwapInterval(0)

        #setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui.scale = session_settings.get('gui_scale', 1)
        g_pool.sidebar = ui.Scrolling_Menu("Settings",
                                           pos=(-300, 0),
                                           size=(0, 0),
                                           header_pos='left')
        general_settings = ui.Growing_Menu('General')
        general_settings.append(
            ui.Slider('scale',
                      g_pool.gui,
                      setter=set_scale,
                      step=.05,
                      min=1.,
                      max=2.5,
                      label='Interface Size'))
        general_settings.append(
            ui.Button(
                'Reset window size', lambda: glfw.glfwSetWindowSize(
                    main_window, frame.width, frame.height)))
        general_settings.append(
            ui.Switch('flip', g_pool, label='Flip image display'))
        general_settings.append(
            ui.Selector('display_mode',
                        g_pool,
                        setter=set_display_mode_info,
                        selection=['camera_image', 'roi', 'algorithm'],
                        labels=['Camera Image', 'ROI', 'Algorithm'],
                        label="Mode"))
        g_pool.display_mode_info = ui.Info_Text(
            g_pool.display_mode_info_text[g_pool.display_mode])
        general_settings.append(g_pool.display_mode_info)
        g_pool.gui.append(g_pool.sidebar)
        detector_selector = ui.Selector(
            'pupil_detector',
            getter=lambda: g_pool.pupil_detector.__class__,
            setter=set_detector,
            selection=[Detector_2D, Detector_3D],
            labels=['C++ 2d detector', 'C++ 3d detector'],
            label="Detection method")
        general_settings.append(detector_selector)

        g_pool.capture_selector_menu = ui.Growing_Menu('Capture Selection')
        g_pool.capture_source_menu = ui.Growing_Menu('Capture Source')
        g_pool.capture.init_gui()

        g_pool.sidebar.append(general_settings)
        g_pool.sidebar.append(g_pool.capture_selector_menu)
        g_pool.sidebar.append(g_pool.capture_source_menu)

        g_pool.pupil_detector.init_gui(g_pool.sidebar)

        manager_class_name, manager_settings = capture_manager_settings
        manager_class_by_name = {c.__name__: c for c in manager_classes}
        g_pool.capture_manager = manager_class_by_name[manager_class_name](
            g_pool, **manager_settings)
        g_pool.capture_manager.init_gui()

        def open_manager(manager_class):
            g_pool.capture_manager.cleanup()
            g_pool.capture_manager = manager_class(g_pool)
            g_pool.capture_manager.init_gui()

        #We add the capture selection menu, after a manager has been added:
        g_pool.capture_selector_menu.insert(
            0,
            ui.Selector('capture_manager',
                        g_pool,
                        setter=open_manager,
                        getter=lambda: g_pool.capture_manager.__class__,
                        selection=manager_classes,
                        labels=[b.gui_name for b in manager_classes],
                        label='Manager'))

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
        glfw.glfwSetKeyCallback(main_window, on_key)
        glfw.glfwSetCharCallback(main_window, on_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)

        #set the last saved window size
        on_resize(main_window, *glfw.glfwGetWindowSize(main_window))

        # load last gui configuration
        g_pool.gui.configuration = session_settings.get('ui_config', {})

        #set up performance graphs
        pid = os.getpid()
        ps = psutil.Process(pid)
        ts = g_pool.get_timestamp()

        cpu_graph = graph.Bar_Graph()
        cpu_graph.pos = (20, 130)
        cpu_graph.update_fn = ps.cpu_percent
        cpu_graph.update_rate = 5
        cpu_graph.label = 'CPU %0.1f'

        fps_graph = graph.Bar_Graph()
        fps_graph.pos = (140, 130)
        fps_graph.update_rate = 5
        fps_graph.label = "%0.0f FPS"

        should_publish_frames = False
        frame_publish_format = 'jpeg'

        #create a timer to control window update frequency
        window_update_timer = timer(1 / 60.)

        def window_should_update():
            return next(window_update_timer)

        logger.warning('Process started.')

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            if notify_sub.new_data:
                t, notification = notify_sub.recv()
                subject = notification['subject']
                if subject == 'eye_process.should_stop':
                    if notification['eye_id'] == eye_id:
                        break
                elif subject == 'set_detection_mapping_mode':
                    if notification['mode'] == '3d':
                        if not isinstance(g_pool.pupil_detector, Detector_3D):
                            set_detector(Detector_3D)
                        detector_selector.read_only = True
                    else:
                        if not isinstance(g_pool.pupil_detector, Detector_2D):
                            set_detector(Detector_2D)
                        detector_selector.read_only = False
                elif subject == 'recording.started':
                    if notification['record_eye']:
                        record_path = notification['rec_path']
                        raw_mode = notification['compression']
                        logger.info("Will save eye video to: %s" % record_path)
                        timestamps_path = os.path.join(
                            record_path, "eye%s_timestamps.npy" % eye_id)
                        if raw_mode and frame.jpeg_buffer:
                            video_path = os.path.join(record_path,
                                                      "eye%s.mp4" % eye_id)
                            writer = JPEG_Writer(video_path,
                                                 g_pool.capture.frame_rate)
                        else:
                            video_path = os.path.join(record_path,
                                                      "eye%s.mp4" % eye_id)
                            writer = AV_Writer(video_path,
                                               g_pool.capture.frame_rate)
                        timestamps = []
                elif subject == 'recording.stopped':
                    if writer:
                        logger.info("Done recording.")
                        writer.release()
                        writer = None
                        np.save(timestamps_path, np.asarray(timestamps))
                        del timestamps
                elif subject.startswith('meta.should_doc'):
                    ipc_socket.notify({
                        'subject': 'meta.doc',
                        'actor': 'eye%i' % eye_id,
                        'doc': eye.__doc__
                    })
                elif subject.startswith('frame_publishing.started'):
                    should_publish_frames = True
                    frame_publish_format = notification.get('format', 'jpeg')
                elif subject.startswith('frame_publishing.stopped'):
                    should_publish_frames = False
                    frame_publish_format = 'jpeg'
                else:
                    g_pool.capture_manager.on_notify(notification)

            # Get an image from the grabber
            try:
                frame = g_pool.capture.get_frame()
            except StreamError as e:
                logger.error("Error getting frame. Stopping eye process.")
                logger.debug("Caught error: %s" % e)
                break
            except EndofVideoFileError:
                logger.warning("Video File is done. Stopping")
                g_pool.capture.seek_to_frame(0)
                frame = g_pool.capture.get_frame()

            g_pool.u_r = UIRoi((frame.height, frame.width))
            g_pool.capture_manager.update(frame, {})

            if should_publish_frames and frame.jpeg_buffer:
                if frame_publish_format == "jpeg":
                    data = frame.jpeg_buffer
                elif frame_publish_format == "yuv":
                    data = frame.yuv_buffer
                elif frame_publish_format == "bgr":
                    data = frame.bgr
                elif frame_publish_format == "gray":
                    data = frame.gray
                pupil_socket.send(
                    'frame.eye.%s' % eye_id, {
                        'width': frame.width,
                        'height': frame.width,
                        'index': frame.index,
                        'timestamp': frame.timestamp,
                        'format': frame_publish_format,
                        '__raw_data__': [data]
                    })

            #update performace graphs
            t = frame.timestamp
            dt, ts = t - ts, t
            try:
                fps_graph.add(1. / dt)
            except ZeroDivisionError:
                pass
            cpu_graph.update()

            if writer:
                writer.write_video_frame(frame)
                timestamps.append(frame.timestamp)

            # pupil ellipse detection
            result = g_pool.pupil_detector.detect(
                frame, g_pool.u_r, g_pool.display_mode == 'algorithm')
            result['id'] = eye_id
            # stream the result
            pupil_socket.send('pupil.%s' % eye_id, result)

            # GL drawing
            if window_should_update():
                if is_window_visible(main_window):
                    glfw.glfwMakeContextCurrent(main_window)
                    clear_gl_screen()

                    # switch to work in normalized coordinate space
                    if g_pool.display_mode == 'algorithm':
                        g_pool.image_tex.update_from_ndarray(frame.img)
                    elif g_pool.display_mode in ('camera_image', 'roi'):
                        g_pool.image_tex.update_from_ndarray(frame.gray)
                    else:
                        pass

                    make_coord_system_norm_based(g_pool.flip)
                    g_pool.image_tex.draw()

                    window_size = glfw.glfwGetWindowSize(main_window)
                    make_coord_system_pixel_based(
                        (frame.height, frame.width, 3), g_pool.flip)
                    g_pool.capture.gl_display()

                    if result['method'] == '3d c++':

                        eye_ball = result['projected_sphere']
                        try:
                            pts = cv2.ellipse2Poly(
                                (int(eye_ball['center'][0]),
                                 int(eye_ball['center'][1])),
                                (int(eye_ball['axes'][0] / 2),
                                 int(eye_ball['axes'][1] / 2)),
                                int(eye_ball['angle']), 0, 360, 8)
                        except ValueError as e:
                            pass
                        else:
                            draw_polyline(
                                pts, 2,
                                RGBA(0., .9, .1, result['model_confidence']))

                    if result['confidence'] > 0:
                        if result.has_key('ellipse'):
                            pts = cv2.ellipse2Poly(
                                (int(result['ellipse']['center'][0]),
                                 int(result['ellipse']['center'][1])),
                                (int(result['ellipse']['axes'][0] / 2),
                                 int(result['ellipse']['axes'][1] / 2)),
                                int(result['ellipse']['angle']), 0, 360, 15)
                            confidence = result[
                                'confidence'] * 0.7  #scale it a little
                            draw_polyline(pts, 1, RGBA(1., 0, 0, confidence))
                            draw_points([result['ellipse']['center']],
                                        size=20,
                                        color=RGBA(1., 0., 0., confidence),
                                        sharpness=1.)

                    # render graphs
                    graph.push_view()
                    fps_graph.draw()
                    cpu_graph.draw()
                    graph.pop_view()

                    # render GUI
                    g_pool.gui.update()

                    #render the ROI
                    g_pool.u_r.draw(g_pool.gui.scale)
                    if g_pool.display_mode == 'roi':
                        g_pool.u_r.draw_points(g_pool.gui.scale)

                    #update screen
                    glfw.glfwSwapBuffers(main_window)
                glfw.glfwPollEvents()
                g_pool.pupil_detector.visualize(
                )  #detector decides if we visualize or not

        # END while running

        # in case eye recording was still runnnig: Save&close
        if writer:
            logger.info("Done recording eye.")
            writer = None
            np.save(timestamps_path, np.asarray(timestamps))

        glfw.glfwRestoreWindow(main_window)  #need to do this for windows os
        # save session persistent settings
        session_settings['gui_scale'] = g_pool.gui.scale
        session_settings['roi'] = g_pool.u_r.get()
        session_settings['flip'] = g_pool.flip
        session_settings['display_mode'] = g_pool.display_mode
        session_settings['ui_config'] = g_pool.gui.configuration
        session_settings['capture_settings'] = g_pool.capture.settings
        session_settings[
            'capture_manager_settings'] = g_pool.capture_manager.class_name, g_pool.capture_manager.get_init_dict(
            )
        session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
        session_settings['window_position'] = glfw.glfwGetWindowPos(
            main_window)
        session_settings['version'] = g_pool.version
        session_settings[
            'last_pupil_detector'] = g_pool.pupil_detector.__class__.__name__
        session_settings[
            'pupil_detector_settings'] = g_pool.pupil_detector.get_settings()
        session_settings.close()

        g_pool.capture.deinit_gui()
        g_pool.pupil_detector.cleanup()
        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)
        glfw.glfwTerminate()
        g_pool.capture_manager.cleanup()
        g_pool.capture.cleanup()
        logger.info("Process shutting down.")
Ejemplo n.º 10
0
def service(
    timebase,
    eye_procs_alive,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    preferred_remote_port,
    hide_ui,
):
    """Maps pupil to gaze data, can run various plug-ins.

    Reacts to notifications:
       ``set_detection_mapping_mode``: Sets detection method
       ``start_plugin``: Starts given plugin with the given arguments
       ``eye_process.started``: Sets the detection method eye process
       ``service_process.should_stop``: Stops the service process

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``service_process.started``
        ``service_process.stopped``
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the service process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    from time import sleep
    import logging
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    gaze_pub = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    pupil_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                       ipc_sub_url,
                                       topics=("pupil", ))
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    poller = zmq.Poller()
    poller.register(pupil_sub.socket)
    poller.register(notify_sub.socket)

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    def launch_eye_process(eye_id, delay=0):
        n = {
            "subject": "eye_process.should_start",
            "eye_id": eye_id,
            "delay": delay
        }
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {"subject": "eye_process.should_stop", "eye_id": eye_id}
        ipc_pub.notify(n)

    try:

        # helpers/utils
        from file_methods import Persistent_Dict
        from methods import delta_t, get_system_info
        from version_utils import VersionFormat
        import audio
        from uvc import get_time_monotonic

        # trigger pupil detector cpp build:
        import pupil_detectors

        del pupil_detectors

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from calibration_routines import calibration_plugins, gaze_mapping_plugins
        from pupil_remote import Pupil_Remote
        from pupil_groups import Pupil_Groups
        from frame_publisher import Frame_Publisher
        from blink_detection import Blink_Detection
        from service_ui import Service_UI
        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        process_was_interrupted = False

        def interrupt_handler(sig, frame):
            import traceback

            trace = traceback.format_stack(f=frame)
            logger.debug(f"Caught signal {sig} in:\n" + "".join(trace))
            nonlocal process_was_interrupted
            process_was_interrupted = True

        signal.signal(signal.SIGINT, interrupt_handler)

        logger.info("Application Version: {}".format(version))
        logger.info("System Info: {}".format(get_system_info()))

        # g_pool holds variables for this process they are accesible to all plugins
        g_pool = SimpleNamespace()
        g_pool.app = "service"
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.get_now = get_time_monotonic
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.eye_procs_alive = eye_procs_alive
        g_pool.timebase = timebase
        g_pool.preferred_remote_port = preferred_remote_port
        g_pool.hide_ui = hide_ui

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp

        # manage plugins
        runtime_plugins = import_runtime_plugins(
            os.path.join(g_pool.user_dir, "plugins"))
        user_launchable_plugins = [
            Service_UI,
            Pupil_Groups,
            Pupil_Remote,
            Frame_Publisher,
            Blink_Detection,
        ] + runtime_plugins
        plugin_by_index = (runtime_plugins + calibration_plugins +
                           gaze_mapping_plugins + user_launchable_plugins)
        name_by_index = [
            pupil_datum.__name__ for pupil_datum in plugin_by_index
        ]
        plugin_by_name = dict(zip(name_by_index, plugin_by_index))
        default_plugins = [
            ("Service_UI", {}),
            ("Dummy_Gaze_Mapper", {}),
            ("HMD_Calibration", {}),
            ("Pupil_Remote", {}),
        ]
        g_pool.plugin_by_name = plugin_by_name

        tick = delta_t()

        def get_dt():
            return next(tick)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, "user_settings_service"))
        if session_settings.get("version",
                                VersionFormat("0.0")) < g_pool.version:
            logger.info(
                "Session setting are from older version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.min_calibration_confidence = session_settings.get(
            "min_calibration_confidence", 0.8)
        g_pool.detection_mapping_mode = session_settings.get(
            "detection_mapping_mode", "2d")
        g_pool.active_calibration_plugin = None
        g_pool.active_gaze_mapping_plugin = None

        audio.audio_mode = session_settings.get("audio_mode",
                                                audio.default_audio_mode)

        ipc_pub.notify({"subject": "service_process.started"})
        logger.warning("Process started.")
        g_pool.service_should_run = True

        # plugins that are loaded based on user settings from previous session
        g_pool.plugins = Plugin_List(
            g_pool, session_settings.get("loaded_plugins", default_plugins))

        # NOTE: The Pupil_Remote plugin fails to load when the port is already in use
        # and will set this variable to false. Then we should not even start the eye
        # processes. Otherwise we would have to wait for their initialization before
        # attempting cleanup in Service.
        if g_pool.service_should_run:
            if session_settings.get("eye1_process_alive", True):
                launch_eye_process(1, delay=0.3)
            if session_settings.get("eye0_process_alive", True):
                launch_eye_process(0, delay=0.0)

        def handle_notifications(n):
            subject = n["subject"]
            if subject == "set_detection_mapping_mode":
                if n["mode"] == "2d":
                    if ("Vector_Gaze_Mapper"
                            in g_pool.active_gaze_mapping_plugin.class_name):
                        logger.warning(
                            "The gaze mapper is not supported in 2d mode. Please recalibrate."
                        )
                        g_pool.plugins.add(plugin_by_name["Dummy_Gaze_Mapper"])
                g_pool.detection_mapping_mode = n["mode"]
            elif subject == "start_plugin":
                g_pool.plugins.add(plugin_by_name[n["name"]],
                                   args=n.get("args", {}))
            elif subject == "eye_process.started":
                n = {
                    "subject": "set_detection_mapping_mode",
                    "mode": g_pool.detection_mapping_mode,
                }
                ipc_pub.notify(n)
            elif subject == "service_process.should_stop":
                g_pool.service_should_run = False
            elif subject.startswith("meta.should_doc"):
                ipc_pub.notify({
                    "subject": "meta.doc",
                    "actor": g_pool.app,
                    "doc": service.__doc__
                })
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({
                            "subject": "meta.doc",
                            "actor": p.class_name,
                            "doc": p.on_notify.__doc__,
                        })

        # initiate ui update loop
        ipc_pub.notify({
            "subject": "service_process.ui.should_update",
            "initial_delay": 1 / 40
        })

        # Event loop
        while g_pool.service_should_run and not process_was_interrupted:
            socks = dict(poller.poll())
            if pupil_sub.socket in socks:
                topic, pupil_datum = pupil_sub.recv()
                new_gaze_data = g_pool.active_gaze_mapping_plugin.on_pupil_datum(
                    pupil_datum)
                for gaze_datum in new_gaze_data:
                    gaze_pub.send(gaze_datum)

                events = {}
                events["gaze"] = new_gaze_data
                events["pupil"] = [pupil_datum]
                for plugin in g_pool.plugins:
                    plugin.recent_events(events=events)

            if notify_sub.socket in socks:
                topic, n = notify_sub.recv()
                handle_notifications(n)
                for plugin in g_pool.plugins:
                    plugin.on_notify(n)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        session_settings["version"] = str(g_pool.version)
        session_settings["eye0_process_alive"] = eye_procs_alive[0].value
        session_settings["eye1_process_alive"] = eye_procs_alive[1].value
        session_settings[
            "min_calibration_confidence"] = g_pool.min_calibration_confidence
        session_settings[
            "detection_mapping_mode"] = g_pool.detection_mapping_mode
        session_settings["audio_mode"] = audio.audio_mode
        session_settings.close()

        # de-init all running plugins
        for pupil_datum in g_pool.plugins:
            pupil_datum.alive = False
        g_pool.plugins.clean()

    except Exception:
        import traceback

        trace = traceback.format_exc()
        logger.error("Process Service crashed with trace:\n{}".format(trace))

    finally:
        # shut down eye processes:
        stop_eye_process(0)
        stop_eye_process(1)

        logger.info("Process shutting down.")
        ipc_pub.notify({"subject": "service_process.stopped"})

        # shut down launcher
        n = {"subject": "launcher_process.should_stop"}
        ipc_pub.notify(n)
        sleep(1.0)
Ejemplo n.º 11
0
Archivo: eye.py Proyecto: N-M-T/pupil
def eye(
    timebase,
    is_alive_flag,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    eye_id,
    overwrite_cap_settings=None,
    hide_ui=False,
    debug=False,
    pub_socket_hwm=None,
    parent_application="capture",
):
    """reads eye video and detects the pupil.

    Creates a window, gl context.
    Grabs images from a capture.
    Streams Pupil coordinates.

    Reacts to notifications:
        ``eye_process.should_stop``: Stops the eye process
        ``recording.started``: Starts recording eye video
        ``recording.stopped``: Stops recording eye video
        ``frame_publishing.started``: Starts frame publishing
        ``frame_publishing.stopped``: Stops frame publishing
        ``start_eye_plugin``: Start plugins in eye process

    Emits notifications:
        ``eye_process.started``: Eye process started
        ``eye_process.stopped``: Eye process stopped

    Emits data:
        ``pupil.<eye id>``: Pupil data for eye with id ``<eye id>``
        ``frame.eye.<eye id>``: Eye frames with id ``<eye id>``
    """

    # We deferr the imports becasue of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    import zmq
    import zmq_tools

    zmq_ctx = zmq.Context()
    ipc_socket = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    pupil_socket = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url, pub_socket_hwm)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=("notify",))

    # logging setup
    import logging

    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    if is_alive_flag.value:
        # indicates eye process that this is a duplicated startup
        logger.warning("Aborting redundant eye process startup")
        return

    with Is_Alive_Manager(is_alive_flag, ipc_socket, eye_id, logger):
        # general imports
        import traceback
        import numpy as np
        import cv2

        from OpenGL.GL import GL_COLOR_BUFFER_BIT

        # display
        import glfw
        from gl_utils import GLFWErrorReporting

        GLFWErrorReporting.set_default()

        from pyglui import ui, graph, cygl
        from pyglui.cygl.utils import Named_Texture
        import gl_utils
        from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen
        from gl_utils import make_coord_system_pixel_based
        from gl_utils import make_coord_system_norm_based
        from gl_utils import is_window_visible, glViewport

        # monitoring
        import psutil

        # Plug-ins
        from plugin import Plugin_List

        # helpers/utils
        from uvc import get_time_monotonic
        from file_methods import Persistent_Dict
        from version_utils import parse_version
        from methods import normalize, denormalize, timer
        from av_writer import JPEG_Writer, MPEG_Writer, NonMonotonicTimestampError
        from ndsi import H264Writer
        from video_capture import source_classes, manager_classes
        from roi import Roi

        from background_helper import IPC_Logging_Task_Proxy
        from pupil_detector_plugins import available_detector_plugins, EVENT_KEY

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        def interrupt_handler(sig, frame):
            import traceback

            trace = traceback.format_stack(f=frame)
            logger.debug(f"Caught signal {sig} in:\n" + "".join(trace))
            # NOTE: Interrupt is handled in world/service/player which are responsible for
            # shutting down the eye process properly

        signal.signal(signal.SIGINT, interrupt_handler)

        # UI Platform tweaks
        if platform.system() == "Linux":
            scroll_factor = 10.0
            window_position_default = (600, 300 * eye_id + 30)
        elif platform.system() == "Windows":
            scroll_factor = 10.0
            window_position_default = (600, 90 + 300 * eye_id)
        else:
            scroll_factor = 1.0
            window_position_default = (600, 300 * eye_id)

        icon_bar_width = 50
        window_size = None
        content_scale = 1.0

        # g_pool holds variables for this process
        g_pool = SimpleNamespace()

        # make some constants avaiable
        g_pool.debug = debug
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.app = parent_application
        g_pool.eye_id = eye_id
        g_pool.process = f"eye{eye_id}"
        g_pool.timebase = timebase
        g_pool.camera_render_size = None

        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_socket
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        def load_runtime_pupil_detection_plugins():
            from plugin import import_runtime_plugins
            from pupil_detector_plugins.detector_base_plugin import PupilDetectorPlugin

            plugins_path = os.path.join(g_pool.user_dir, "plugins")

            for plugin in import_runtime_plugins(plugins_path):
                if not isinstance(plugin, type):
                    continue
                if not issubclass(plugin, PupilDetectorPlugin):
                    continue
                if plugin is PupilDetectorPlugin:
                    continue
                yield plugin

        available_detectors = available_detector_plugins()
        runtime_detectors = list(load_runtime_pupil_detection_plugins())
        plugins = (
            manager_classes
            + source_classes
            + available_detectors
            + runtime_detectors
            + [Roi]
        )
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}

        preferred_names = [
            f"Pupil Cam3 ID{eye_id}",
            f"Pupil Cam2 ID{eye_id}",
            f"Pupil Cam1 ID{eye_id}",
        ]
        if eye_id == 0:
            preferred_names += ["HD-6000"]

        default_capture_name = "UVC_Source"
        default_capture_settings = {
            "preferred_names": preferred_names,
            "frame_size": (192, 192),
            "frame_rate": 120,
        }

        default_plugins = [
            # TODO: extend with plugins
            (default_capture_name, default_capture_settings),
            ("UVC_Manager", {}),
            *[(p.__name__, {}) for p in available_detectors],
            ("NDSI_Manager", {}),
            ("HMD_Streaming_Manager", {}),
            ("File_Manager", {}),
            ("Roi", {}),
        ]

        def consume_events_and_render_buffer():
            glfw.make_context_current(main_window)
            clear_gl_screen()

            if all(c > 0 for c in g_pool.camera_render_size):
                glViewport(0, 0, *g_pool.camera_render_size)
                for p in g_pool.plugins:
                    p.gl_display()

            glViewport(0, 0, *window_size)
            # render graphs
            fps_graph.draw()
            cpu_graph.draw()

            # render GUI
            try:
                clipboard = glfw.get_clipboard_string(main_window).decode()
            except (AttributeError, glfw.GLFWError):
                # clipboard is None, might happen on startup
                clipboard = ""
            g_pool.gui.update_clipboard(clipboard)
            user_input = g_pool.gui.update()
            if user_input.clipboard != clipboard:
                # only write to clipboard if content changed
                glfw.set_clipboard_string(main_window, user_input.clipboard)

            for button, action, mods in user_input.buttons:
                x, y = glfw.get_cursor_pos(main_window)
                pos = gl_utils.window_coordinate_to_framebuffer_coordinate(
                    main_window, x, y, cached_scale=None
                )
                pos = normalize(pos, g_pool.camera_render_size)
                if g_pool.flip:
                    pos = 1 - pos[0], 1 - pos[1]
                # Position in img pixels
                pos = denormalize(pos, g_pool.capture.frame_size)

                for plugin in g_pool.plugins:
                    if plugin.on_click(pos, button, action):
                        break

            for key, scancode, action, mods in user_input.keys:
                for plugin in g_pool.plugins:
                    if plugin.on_key(key, scancode, action, mods):
                        break

            for char_ in user_input.chars:
                for plugin in g_pool.plugins:
                    if plugin.on_char(char_):
                        break

            # update screen
            glfw.swap_buffers(main_window)

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal content_scale

            is_minimized = bool(glfw.get_window_attrib(window, glfw.ICONIFIED))

            if is_minimized:
                return

            # Always clear buffers on resize to make sure that there are no overlapping
            # artifacts from previous frames.
            gl_utils.glClear(GL_COLOR_BUFFER_BIT)
            gl_utils.glClearColor(0, 0, 0, 1)

            active_window = glfw.get_current_context()
            glfw.make_context_current(window)
            content_scale = gl_utils.get_content_scale(window)
            framebuffer_scale = gl_utils.get_framebuffer_scale(window)
            g_pool.gui.scale = content_scale
            window_size = w, h
            g_pool.camera_render_size = w - int(icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = content_scale
                g.adjust_window_size(w, h)
            adjust_gl_view(w, h)
            glfw.make_context_current(active_window)

            # Minimum window size required, otherwise parts of the UI can cause openGL
            # issues with permanent effects. Depends on the content scale, which can
            # potentially be dynamically modified, so we re-adjust the size limits every
            # time here.
            min_size = int(2 * icon_bar_width * g_pool.gui.scale / framebuffer_scale)
            glfw.set_window_size_limits(
                window,
                min_size,
                min_size,
                glfw.DONT_CARE,
                glfw.DONT_CARE,
            )

            # Needed, to update the window buffer while resizing
            consume_events_and_render_buffer()

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_iconify(window, iconified):
            g_pool.iconified = iconified

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = gl_utils.window_coordinate_to_framebuffer_coordinate(
                window, x, y, cached_scale=None
            )
            g_pool.gui.update_mouse(x, y)

            pos = x, y
            pos = normalize(pos, g_pool.camera_render_size)
            if g_pool.flip:
                pos = 1 - pos[0], 1 - pos[1]
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)

            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, paths):
            for plugin in g_pool.plugins:
                if plugin.on_drop(paths):
                    break

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, "user_settings_eye{}".format(eye_id))
        )
        if parse_version(session_settings.get("version", "0.0")) != g_pool.version:
            logger.info(
                "Session setting are from a different version of this app. I will not use those."
            )
            session_settings.clear()

        camera_is_physically_flipped = eye_id == 0
        g_pool.iconified = False
        g_pool.capture = None
        g_pool.flip = session_settings.get("flip", camera_is_physically_flipped)
        g_pool.display_mode = session_settings.get("display_mode", "camera_image")
        g_pool.display_mode_info_text = {
            "camera_image": "Raw eye camera image. This uses the least amount of CPU power",
            "roi": "Click and drag on the blue circles to adjust the region of interest. The region should be as small as possible, but large enough to capture all pupil movements.",
            "algorithm": "Algorithm display mode overlays a visualization of the pupil detection parameters on top of the eye video. Adjust parameters within the Pupil Detection menu below.",
        }

        def set_display_mode_info(val):
            g_pool.display_mode = val
            g_pool.display_mode_info.text = g_pool.display_mode_info_text[val]

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # Initialize glfw
        glfw.init()
        glfw.window_hint(glfw.SCALE_TO_MONITOR, glfw.TRUE)
        if hide_ui:
            glfw.window_hint(glfw.VISIBLE, 0)  # hide window
        title = "Pupil Capture - eye {}".format(eye_id)

        # Pupil Cam1 uses 4:3 resolutions. Pupil Cam2 and Cam3 use 1:1 resolutions.
        # As all Pupil Core and VR/AR add-ons are shipped with Pupil Cam2 and Cam3
        # cameras, we adjust the default eye window size to a 1:1 content aspect ratio.
        # The size of 500 was chosen s.t. the menu still fits.
        default_window_size = 500 + icon_bar_width, 500
        width, height = session_settings.get("window_size", default_window_size)

        main_window = glfw.create_window(width, height, title, None, None)

        window_position_manager = gl_utils.WindowPositionManager()
        window_pos = window_position_manager.new_window_position(
            window=main_window,
            default_position=window_position_default,
            previous_position=session_settings.get("window_position", None),
        )
        glfw.set_window_pos(main_window, window_pos[0], window_pos[1])

        glfw.make_context_current(main_window)
        cygl.utils.init()

        # gl_state settings
        basic_gl_setup()
        g_pool.image_tex = Named_Texture()
        g_pool.image_tex.update_from_ndarray(np.ones((1, 1), dtype=np.uint8) + 125)

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.menubar = ui.Scrolling_Menu(
            "Settings", pos=(-500, 0), size=(-icon_bar_width, 0), header_pos="left"
        )
        g_pool.iconbar = ui.Scrolling_Menu(
            "Icons", pos=(-icon_bar_width, 0), size=(0, 0), header_pos="hidden"
        )
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)

        general_settings = ui.Growing_Menu("General", header_pos="headline")

        def set_window_size():
            # Get current capture frame size
            f_width, f_height = g_pool.capture.frame_size
            # Eye camera resolutions are too small to be used as default window sizes.
            # We use double their size instead.
            frame_scale_factor = 2
            f_width *= frame_scale_factor
            f_height *= frame_scale_factor

            # Get current display scale factor
            content_scale = gl_utils.get_content_scale(main_window)
            framebuffer_scale = gl_utils.get_framebuffer_scale(main_window)
            display_scale_factor = content_scale / framebuffer_scale

            # Scale the capture frame size by display scale factor
            f_width *= display_scale_factor
            f_height *= display_scale_factor

            # Increas the width to account for the added scaled icon bar width
            f_width += icon_bar_width * display_scale_factor

            # Set the newly calculated size (scaled capture frame size + scaled icon bar width)
            glfw.set_window_size(main_window, int(f_width), int(f_height))

        general_settings.append(ui.Button("Reset window size", set_window_size))
        general_settings.append(ui.Switch("flip", g_pool, label="Flip image display"))
        general_settings.append(
            ui.Selector(
                "display_mode",
                g_pool,
                setter=set_display_mode_info,
                selection=["camera_image", "roi", "algorithm"],
                labels=["Camera Image", "ROI", "Algorithm"],
                label="Mode",
            )
        )
        g_pool.display_mode_info = ui.Info_Text(
            g_pool.display_mode_info_text[g_pool.display_mode]
        )

        general_settings.append(g_pool.display_mode_info)

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)

        plugins_to_load = session_settings.get("loaded_plugins", default_plugins)
        if overwrite_cap_settings:
            # Ensure that overwrite_cap_settings takes preference over source plugins
            # with incorrect settings that were loaded from session settings.
            plugins_to_load.append(overwrite_cap_settings)

        # Add runtime plugins to the list of plugins to load with default arguments,
        # if not already restored from session settings
        plugins_to_load_names = set(name for name, _ in plugins_to_load)
        for runtime_detector in runtime_detectors:
            runtime_name = runtime_detector.__name__
            if runtime_name not in plugins_to_load_names:
                plugins_to_load.append((runtime_name, {}))

        g_pool.plugins = Plugin_List(g_pool, plugins_to_load)

        if not g_pool.capture:
            # Make sure we always have a capture running. Important if there was no
            # capture stored in session settings.
            g_pool.plugins.add(
                g_pool.plugin_by_name[default_capture_name], default_capture_settings
            )

        toggle_general_settings(True)

        g_pool.writer = None
        g_pool.rec_path = None

        # Register callbacks main_window
        glfw.set_framebuffer_size_callback(main_window, on_resize)
        glfw.set_window_iconify_callback(main_window, on_iconify)
        glfw.set_key_callback(main_window, on_window_key)
        glfw.set_char_callback(main_window, on_window_char)
        glfw.set_mouse_button_callback(main_window, on_window_mouse_button)
        glfw.set_cursor_pos_callback(main_window, on_pos)
        glfw.set_scroll_callback(main_window, on_scroll)
        glfw.set_drop_callback(main_window, on_drop)

        # load last gui configuration
        g_pool.gui.configuration = session_settings.get("ui_config", {})
        # If previously selected plugin was not loaded this time, we will have an
        # expanded menubar without any menu selected. We need to ensure the menubar is
        # collapsed in this case.
        if all(submenu.collapsed for submenu in g_pool.menubar.elements):
            g_pool.menubar.collapsed = True

        # set up performance graphs
        pid = os.getpid()
        ps = psutil.Process(pid)
        ts = g_pool.get_timestamp()

        cpu_graph = graph.Bar_Graph()
        cpu_graph.pos = (20, 50)
        cpu_graph.update_fn = ps.cpu_percent
        cpu_graph.update_rate = 5
        cpu_graph.label = "CPU %0.1f"

        fps_graph = graph.Bar_Graph()
        fps_graph.pos = (140, 50)
        fps_graph.update_rate = 5
        fps_graph.label = "%0.0f FPS"
        g_pool.graphs = [cpu_graph, fps_graph]

        # set the last saved window size
        on_resize(main_window, *glfw.get_framebuffer_size(main_window))

        should_publish_frames = False
        frame_publish_format = "jpeg"
        frame_publish_format_recent_warning = False

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        logger.warning("Process started.")

        frame = None

        if platform.system() == "Darwin":
            # On macOS, calls to glfw.swap_buffers() deliberately take longer in case of
            # occluded windows, based on the swap interval value. This causes an FPS drop
            # and leads to problems when recording. To side-step this behaviour, the swap
            # interval is set to zero.
            #
            # Read more about window occlusion on macOS here:
            # https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/WorkWhenVisible.html
            glfw.swap_interval(0)

        # Event loop
        window_should_close = False
        while not window_should_close:

            if notify_sub.new_data:
                t, notification = notify_sub.recv()
                subject = notification["subject"]
                if subject.startswith("eye_process.should_stop"):
                    if notification["eye_id"] == eye_id:
                        break
                elif subject == "recording.started":
                    if notification["record_eye"] and g_pool.capture.online:
                        g_pool.rec_path = notification["rec_path"]
                        raw_mode = notification["compression"]
                        start_time_synced = notification["start_time_synced"]
                        logger.info(f"Will save eye video to: {g_pool.rec_path}")
                        video_path = os.path.join(
                            g_pool.rec_path, "eye{}.mp4".format(eye_id)
                        )
                        if raw_mode and frame and g_pool.capture.jpeg_support:
                            g_pool.writer = JPEG_Writer(video_path, start_time_synced)
                        elif hasattr(g_pool.capture._recent_frame, "h264_buffer"):
                            g_pool.writer = H264Writer(
                                video_path,
                                g_pool.capture.frame_size[0],
                                g_pool.capture.frame_size[1],
                                g_pool.capture.frame_rate,
                            )
                        else:
                            g_pool.writer = MPEG_Writer(video_path, start_time_synced)
                elif subject == "recording.stopped":
                    if g_pool.writer:
                        logger.info("Done recording.")
                        try:
                            g_pool.writer.release()
                        except RuntimeError:
                            logger.error("No eye video recorded")
                        else:
                            # TODO: wrap recording logic into plugin
                            g_pool.capture.intrinsics.save(
                                g_pool.rec_path, custom_name=f"eye{eye_id}"
                            )
                        finally:
                            g_pool.writer = None
                elif subject.startswith("meta.should_doc"):
                    ipc_socket.notify(
                        {
                            "subject": "meta.doc",
                            "actor": "eye{}".format(eye_id),
                            "doc": eye.__doc__,
                        }
                    )
                elif subject.startswith("frame_publishing.started"):
                    should_publish_frames = True
                    frame_publish_format = notification.get("format", "jpeg")
                elif subject.startswith("frame_publishing.stopped"):
                    should_publish_frames = False
                    frame_publish_format = "jpeg"
                elif (
                    subject.startswith("start_eye_plugin")
                    and notification["target"] == g_pool.process
                ):
                    try:
                        g_pool.plugins.add(
                            g_pool.plugin_by_name[notification["name"]],
                            notification.get("args", {}),
                        )
                    except KeyError as err:
                        logger.error(f"Attempt to load unknown plugin: {err}")
                elif (
                    subject.startswith("stop_eye_plugin")
                    and notification["target"] == g_pool.process
                ):
                    try:
                        plugin_to_stop = g_pool.plugin_by_name[notification["name"]]
                    except KeyError as err:
                        logger.error(f"Attempt to load unknown plugin: {err}")
                    else:
                        plugin_to_stop.alive = False
                        g_pool.plugins.clean()

                for plugin in g_pool.plugins:
                    plugin.on_notify(notification)

            event = {}
            for plugin in g_pool.plugins:
                plugin.recent_events(event)

            frame = event.get("frame")
            if frame:
                if should_publish_frames:
                    try:
                        if frame_publish_format == "jpeg":
                            data = frame.jpeg_buffer
                        elif frame_publish_format == "yuv":
                            data = frame.yuv_buffer
                        elif frame_publish_format == "bgr":
                            data = frame.bgr
                        elif frame_publish_format == "gray":
                            data = frame.gray
                        assert data is not None
                    except (AttributeError, AssertionError, NameError):
                        if not frame_publish_format_recent_warning:
                            frame_publish_format_recent_warning = True
                            logger.warning(
                                '{}s are not compatible with format "{}"'.format(
                                    type(frame), frame_publish_format
                                )
                            )
                    else:
                        frame_publish_format_recent_warning = False
                        pupil_socket.send(
                            {
                                "topic": "frame.eye.{}".format(eye_id),
                                "width": frame.width,
                                "height": frame.height,
                                "index": frame.index,
                                "timestamp": frame.timestamp,
                                "format": frame_publish_format,
                                "__raw_data__": [data],
                            }
                        )

                t = frame.timestamp
                dt, ts = t - ts, t
                try:
                    fps_graph.add(1.0 / dt)
                except ZeroDivisionError:
                    pass

                if g_pool.writer:
                    try:
                        g_pool.writer.write_video_frame(frame)
                    except NonMonotonicTimestampError as e:
                        logger.error(
                            "Recorder received non-monotonic timestamp!"
                            " Stopping the recording!"
                        )
                        logger.debug(str(e))
                        ipc_socket.notify({"subject": "recording.should_stop"})
                        ipc_socket.notify(
                            {"subject": "recording.should_stop", "remote_notify": "all"}
                        )

                for result in event.get(EVENT_KEY, ()):
                    pupil_socket.send(result)

            # GL drawing
            if window_should_update():
                cpu_graph.update()
                if is_window_visible(main_window):
                    consume_events_and_render_buffer()
                glfw.poll_events()
                window_should_close = glfw.window_should_close(main_window)

        # END while running

        # in case eye recording was still runnnig: Save&close
        if g_pool.writer:
            logger.info("Done recording eye.")
            g_pool.writer.release()
            g_pool.writer = None

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        # save session persistent settings
        session_settings["flip"] = g_pool.flip
        session_settings["display_mode"] = g_pool.display_mode
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["version"] = str(g_pool.version)

        if not hide_ui:
            glfw.restore_window(main_window)  # need to do this for windows os
            session_settings["window_position"] = glfw.get_window_pos(main_window)
            session_window_size = glfw.get_window_size(main_window)
            if 0 not in session_window_size:
                f_width, f_height = session_window_size
                if platform.system() in ("Windows", "Linux"):
                    # Store unscaled window size as the operating system will scale the
                    # windows appropriately during launch on Windows and Linux.
                    f_width, f_height = (
                        f_width / content_scale,
                        f_height / content_scale,
                    )
                session_settings["window_size"] = int(f_width), int(f_height)

        session_settings.close()

        for plugin in g_pool.plugins:
            plugin.alive = False
        g_pool.plugins.clean()

    glfw.destroy_window(main_window)
    g_pool.gui.terminate()
    glfw.terminate()
    logger.info("Process shutting down.")
Ejemplo n.º 12
0
def player(rec_dir, ipc_pub_url, ipc_sub_url, ipc_push_url, user_dir,
           app_version):
    # general imports
    from time import sleep
    import logging
    from glob import glob
    from time import time, strftime, localtime

    # networking
    import zmq
    import zmq_tools

    import numpy as np

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    try:
        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        from tasklib.background.patches import IPCLoggingPatch

        IPCLoggingPatch.ipc_push_url = ipc_push_url

        # imports
        from file_methods import Persistent_Dict, next_export_sub_dir

        # display
        import glfw

        # check versions for our own depedencies as they are fast-changing
        from pyglui import __version__ as pyglui_version

        from pyglui import ui, cygl
        from pyglui.cygl.utils import Named_Texture, RGBA
        import gl_utils

        # capture
        from video_capture import File_Source

        # helpers/utils
        from version_utils import VersionFormat
        from methods import normalize, denormalize, delta_t, get_system_info
        import player_methods as pm
        from csv_utils import write_key_value_file

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from plugin_manager import Plugin_Manager
        from vis_circle import Vis_Circle
        from vis_cross import Vis_Cross
        from vis_polyline import Vis_Polyline
        from vis_light_points import Vis_Light_Points
        from vis_watermark import Vis_Watermark
        from vis_fixation import Vis_Fixation

        # from vis_scan_path import Vis_Scan_Path
        from seek_control import Seek_Control
        from offline_surface_tracker import Offline_Surface_Tracker

        # from marker_auto_trim_marks import Marker_Auto_Trim_Marks
        from fixation_detector import Offline_Fixation_Detector
        from log_display import Log_Display
        from annotations import Annotation_Player
        from raw_data_exporter import Raw_Data_Exporter
        from log_history import Log_History
        from pupil_producers import Pupil_From_Recording, Offline_Pupil_Detection
        from gaze_producer.gaze_from_recording import GazeFromRecording
        from gaze_producer.gaze_from_offline_calibration import (
            GazeFromOfflineCalibration, )
        from system_graphs import System_Graphs
        from system_timelines import System_Timelines
        from blink_detection import Offline_Blink_Detection
        from audio_playback import Audio_Playback
        from video_export.plugins.imotions_exporter import iMotions_Exporter
        from video_export.plugins.eye_video_exporter import Eye_Video_Exporter
        from video_export.plugins.world_video_exporter import World_Video_Exporter
        from video_capture import File_Source
        from video_overlay.plugins import Video_Overlay, Eye_Overlay

        assert VersionFormat(pyglui_version) >= VersionFormat(
            "1.23"), "pyglui out of date, please upgrade to newest version"

        runtime_plugins = import_runtime_plugins(
            os.path.join(user_dir, "plugins"))
        system_plugins = [
            Log_Display,
            Seek_Control,
            Plugin_Manager,
            System_Graphs,
            System_Timelines,
            Audio_Playback,
        ]
        user_plugins = [
            Vis_Circle,
            Vis_Fixation,
            Vis_Polyline,
            Vis_Light_Points,
            Vis_Cross,
            Vis_Watermark,
            Eye_Overlay,
            Video_Overlay,
            # Vis_Scan_Path,
            Offline_Fixation_Detector,
            Offline_Blink_Detection,
            Offline_Surface_Tracker,
            Raw_Data_Exporter,
            Annotation_Player,
            Log_History,
            Pupil_From_Recording,
            Offline_Pupil_Detection,
            GazeFromRecording,
            GazeFromOfflineCalibration,
            World_Video_Exporter,
            iMotions_Exporter,
            Eye_Video_Exporter,
        ] + runtime_plugins

        if platform.system() != "Windows":
            # Head pose tracking is currently not available on Windows
            from head_pose_tracker.offline_head_pose_tracker import (
                Offline_Head_Pose_Tracker, )

            user_plugins.append(Offline_Head_Pose_Tracker)

        plugins = system_plugins + user_plugins

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal hdpi_factor
            if w == 0 or h == 0:
                return
            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w, h
            g_pool.camera_render_size = w - int(
                icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()
            for p in g_pool.plugins:
                p.on_window_resize(window, *g_pool.camera_render_size)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = x * hdpi_factor, y * hdpi_factor
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, g_pool.camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode("utf-8") for x in range(count)]
            for path in paths:
                if pm.is_pupil_rec_dir(path):
                    _restart_with_recording(path)
                    return
            # call `on_drop` callbacks until a plugin indicates
            # that it has consumed the event (by returning True)
            any(p.on_drop(paths) for p in g_pool.plugins)

        def _restart_with_recording(rec_dir):
            logger.debug("Starting new session with '{}'".format(rec_dir))
            ipc_pub.notify({
                "subject": "player_drop_process.should_start",
                "rec_dir": rec_dir
            })
            glfw.glfwSetWindowShouldClose(g_pool.main_window, True)

        tick = delta_t()

        def get_dt():
            return next(tick)

        meta_info = pm.load_meta_info(rec_dir)

        # log info about Pupil Platform and Platform in player.log
        logger.info("Application Version: {}".format(app_version))
        logger.info("System Info: {}".format(get_system_info()))

        icon_bar_width = 50
        window_size = None
        hdpi_factor = 1.0

        # create container for globally scoped vars
        g_pool = Global_Container()
        g_pool.app = "player"
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}
        g_pool.camera_render_size = None

        valid_ext = (".mp4", ".mkv", ".avi", ".h264", ".mjpeg", ".fake")
        video_path = [
            f for f in glob(os.path.join(rec_dir, "world.*"))
            if os.path.splitext(f)[1] in valid_ext
        ][0]
        File_Source(
            g_pool,
            timing="external",
            source_path=video_path,
            buffered_decoding=True,
            fill_gaps=True,
        )

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(user_dir, "user_settings_player"))
        if VersionFormat(session_settings.get("version",
                                              "0.0")) != app_version:
            logger.info(
                "Session setting are a different version of this app. I will not use those."
            )
            session_settings.clear()

        width, height = g_pool.capture.frame_size
        width += icon_bar_width
        width, height = session_settings.get("window_size", (width, height))

        window_pos = session_settings.get("window_position",
                                          window_position_default)
        window_name = "Pupil Player: {} - {}".format(
            meta_info["Recording Name"],
            os.path.split(rec_dir)[-1])

        glfw.glfwInit()
        main_window = glfw.glfwCreateWindow(width, height, window_name, None,
                                            None)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            window_size = (
                g_pool.camera_render_size[0] +
                int(icon_bar_width * g_pool.gui_user_scale * hdpi_factor),
                glfw.glfwGetFramebufferSize(main_window)[1],
            )
            logger.warning(icon_bar_width * g_pool.gui_user_scale *
                           hdpi_factor)
            glfw.glfwSetWindowSize(main_window, *window_size)

        # load pupil_positions, gaze_positions
        g_pool.binocular = meta_info.get("Eye Mode",
                                         "monocular") == "binocular"
        g_pool.version = app_version
        g_pool.timestamps = g_pool.capture.timestamps
        g_pool.get_timestamp = lambda: 0.0
        g_pool.user_dir = user_dir
        g_pool.rec_dir = rec_dir
        g_pool.meta_info = meta_info
        g_pool.min_data_confidence = session_settings.get(
            "min_data_confidence", 0.6)
        g_pool.min_calibration_confidence = session_settings.get(
            "min_calibration_confidence", 0.8)

        # populated by producers
        g_pool.pupil_positions = pm.Bisector()
        g_pool.pupil_positions_by_id = (pm.Bisector(), pm.Bisector())
        g_pool.gaze_positions = pm.Bisector()
        g_pool.fixations = pm.Affiliator()

        def set_data_confidence(new_confidence):
            g_pool.min_data_confidence = new_confidence
            notification = {"subject": "min_data_confidence_changed"}
            notification["_notify_time_"] = time() + 0.8
            g_pool.ipc_pub.notify(notification)

        def do_export(_):
            left_idx = g_pool.seek_control.trim_left
            right_idx = g_pool.seek_control.trim_right
            export_range = left_idx, right_idx + 1  # exclusive range.stop
            export_ts_window = pm.exact_window(g_pool.timestamps,
                                               (left_idx, right_idx))

            export_dir = os.path.join(g_pool.rec_dir, "exports")
            export_dir = next_export_sub_dir(export_dir)

            os.makedirs(export_dir)
            logger.info('Created export dir at "{}"'.format(export_dir))

            export_info = {
                "Player Software Version":
                str(g_pool.version),
                "Data Format Version":
                meta_info["Data Format Version"],
                "Export Date":
                strftime("%d.%m.%Y", localtime()),
                "Export Time":
                strftime("%H:%M:%S", localtime()),
                "Frame Index Range:":
                g_pool.seek_control.get_frame_index_trim_range_string(),
                "Relative Time Range":
                g_pool.seek_control.get_rel_time_trim_range_string(),
                "Absolute Time Range":
                g_pool.seek_control.get_abs_time_trim_range_string(),
            }
            with open(os.path.join(export_dir, "export_info.csv"), "w") as csv:
                write_key_value_file(csv, export_info)

            notification = {
                "subject": "should_export",
                "range": export_range,
                "ts_window": export_ts_window,
                "export_dir": export_dir,
            }
            g_pool.ipc_pub.notify(notification)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Player.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({"subject": "clear_settings_process.should_start"})
            ipc_pub.notify({
                "subject": "player_process.should_start",
                "rec_dir": rec_dir,
                "delay": 2.0,
            })

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get("gui_scale", 1.0)
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-500, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos="left")
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos="hidden")
        g_pool.timelines = ui.Container((0, 0), (0, 0), (0, 0))
        g_pool.timelines.horizontal_constraint = g_pool.menubar
        g_pool.user_timelines = ui.Timeline_Menu("User Timelines",
                                                 pos=(0.0, -150.0),
                                                 size=(0.0, 0.0),
                                                 header_pos="headline")
        g_pool.user_timelines.color = RGBA(a=0.0)
        g_pool.user_timelines.collapsed = True
        # add container that constaints itself to the seekbar height
        vert_constr = ui.Container((0, 0), (0, -50.0), (0, 0))
        vert_constr.append(g_pool.user_timelines)
        g_pool.timelines.append(vert_constr)

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width += int(icon_bar_width * g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)

        general_settings = ui.Growing_Menu("General", header_pos="headline")
        general_settings.append(ui.Button("Reset window size",
                                          set_window_size))
        general_settings.append(
            ui.Selector(
                "gui_user_scale",
                g_pool,
                setter=set_scale,
                selection=[0.8, 0.9, 1.0, 1.1, 1.2] +
                list(np.arange(1.5, 5.1, 0.5)),
                label="Interface Size",
            ))
        general_settings.append(
            ui.Info_Text("Player Version: {}".format(g_pool.version)))
        general_settings.append(
            ui.Info_Text("Capture Version: {}".format(
                meta_info["Capture Software Version"])))
        general_settings.append(
            ui.Info_Text("Data Format Version: {}".format(
                meta_info["Data Format Version"])))

        general_settings.append(
            ui.Info_Text(
                "High level data, e.g. fixations, or visualizations only consider gaze data that has an equal or higher confidence than the minimum data confidence."
            ))
        general_settings.append(
            ui.Slider(
                "min_data_confidence",
                g_pool,
                setter=set_data_confidence,
                step=0.05,
                min=0.0,
                max=1.0,
                label="Minimum data confidence",
            ))

        general_settings.append(
            ui.Button("Restart with default settings", reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        g_pool.quickbar = ui.Stretching_Menu("Quick Bar", (0, 100),
                                             (100, -100))
        g_pool.export_button = ui.Thumb(
            "export",
            label=chr(0xE2C5),
            getter=lambda: False,
            setter=do_export,
            hotkey="e",
            label_font="pupil_icons",
        )
        g_pool.quickbar.extend([g_pool.export_button])
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.timelines)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        # we always load these plugins
        default_plugins = [
            ("Plugin_Manager", {}),
            ("Seek_Control", {}),
            ("Log_Display", {}),
            ("Raw_Data_Exporter", {}),
            ("Vis_Polyline", {}),
            ("Vis_Circle", {}),
            ("System_Graphs", {}),
            ("System_Timelines", {}),
            ("World_Video_Exporter", {}),
            ("Pupil_From_Recording", {}),
            ("GazeFromRecording", {}),
            ("Audio_Playback", {}),
        ]

        g_pool.plugins = Plugin_List(
            g_pool, session_settings.get("loaded_plugins", default_plugins))

        # Manually add g_pool.capture to the plugin list
        g_pool.plugins._plugins.append(g_pool.capture)
        g_pool.plugins._plugins.sort(key=lambda p: p.order)
        g_pool.capture.init_ui()

        general_settings.insert(
            -1,
            ui.Text_Input(
                "rel_time_trim_section",
                getter=g_pool.seek_control.get_rel_time_trim_range_string,
                setter=g_pool.seek_control.set_rel_time_trim_range_string,
                label="Relative time range to export",
            ),
        )
        general_settings.insert(
            -1,
            ui.Text_Input(
                "frame_idx_trim_section",
                getter=g_pool.seek_control.get_frame_index_trim_range_string,
                setter=g_pool.seek_control.set_frame_index_trim_range_string,
                label="Frame index range to export",
            ),
        )

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        toggle_general_settings(True)

        g_pool.gui.configuration = session_settings.get("ui_config", {})

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        # trigger on_resize
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        def handle_notifications(n):
            subject = n["subject"]
            if subject == "start_plugin":
                g_pool.plugins.add(g_pool.plugin_by_name[n["name"]],
                                   args=n.get("args", {}))
            elif subject.startswith("meta.should_doc"):
                ipc_pub.notify({
                    "subject": "meta.doc",
                    "actor": g_pool.app,
                    "doc": player.__doc__
                })
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({
                            "subject": "meta.doc",
                            "actor": p.class_name,
                            "doc": p.on_notify.__doc__,
                        })

        while not glfw.glfwWindowShouldClose(main_window):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            events = {}
            # report time between now and the last loop interation
            events["dt"] = get_dt()

            # pupil and gaze positions are added by their respective producer plugins
            events["pupil"] = []
            events["gaze"] = []

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            glfw.glfwMakeContextCurrent(main_window)
            # render visual feedback from loaded plugins
            if gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *g_pool.camera_render_size)
                g_pool.capture.gl_display()
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)

                try:
                    clipboard = glfw.glfwGetClipboardString(
                        main_window).decode()
                except AttributeError:  # clipbaord is None, might happen on startup
                    clipboard = ""
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard and user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.glfwSetClipboardString(main_window,
                                                user_input.clipboard.encode())

                for b in user_input.buttons:
                    button, action, mods = b
                    x, y = glfw.glfwGetCursorPos(main_window)
                    pos = x * hdpi_factor, y * hdpi_factor
                    pos = normalize(pos, g_pool.camera_render_size)
                    pos = denormalize(pos, g_pool.capture.frame_size)

                    # call `on_click` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(
                        p.on_click(pos, button, action)
                        for p in g_pool.plugins)

                for key, scancode, action, mods in user_input.keys:
                    # call `on_key` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(
                        p.on_key(key, scancode, action, mods)
                        for p in g_pool.plugins)

                for char_ in user_input.chars:
                    # call `char_` callbacks until a plugin indicates
                    # that it has consumed the event (by returning True)
                    any(p.on_char(char_) for p in g_pool.plugins)

                # present frames at appropriate speed
                g_pool.seek_control.wait(events["frame"].timestamp)
                glfw.glfwSwapBuffers(main_window)

            glfw.glfwPollEvents()

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        session_settings["min_data_confidence"] = g_pool.min_data_confidence
        session_settings[
            "min_calibration_confidence"] = g_pool.min_calibration_confidence
        session_settings["gui_scale"] = g_pool.gui_user_scale
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["window_position"] = glfw.glfwGetWindowPos(
            main_window)
        session_settings["version"] = str(g_pool.version)

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            session_settings["window_size"] = session_window_size

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)

    except:
        import traceback

        trace = traceback.format_exc()
        logger.error("Process Player crashed with trace:\n{}".format(trace))
    finally:
        logger.info("Process shutting down.")
        ipc_pub.notify({"subject": "player_process.stopped"})
        sleep(1.0)
Ejemplo n.º 13
0
def player(rec_dir, ipc_pub_url, ipc_sub_url,
           ipc_push_url, user_dir, app_version):
    # general imports
    import logging
    import errno
    from glob import glob
    from copy import deepcopy
    from time import time
    # networking
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('notify',))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.INFO)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)



    # imports
    from file_methods import Persistent_Dict, load_object

    # display
    import glfw
    # check versions for our own depedencies as they are fast-changing
    from pyglui import __version__ as pyglui_version

    from pyglui import ui, graph, cygl
    from pyglui.cygl.utils import Named_Texture
    import gl_utils
    # capture
    from video_capture import File_Source, EndofVideoFileError, FileSeekError

    # helpers/utils
    from version_utils import VersionFormat
    from methods import normalize, denormalize, delta_t, get_system_info
    from player_methods import correlate_data, is_pupil_rec_dir, load_meta_info

    # monitoring
    import psutil

    # Plug-ins
    from plugin import Plugin, Plugin_List, import_runtime_plugins, Visualizer_Plugin_Base, Analysis_Plugin_Base, Producer_Plugin_Base
    from vis_circle import Vis_Circle
    from vis_cross import Vis_Cross
    from vis_polyline import Vis_Polyline
    from vis_light_points import Vis_Light_Points
    from vis_watermark import Vis_Watermark
    from vis_fixation import Vis_Fixation
    from vis_scan_path import Vis_Scan_Path
    from vis_eye_video_overlay import Vis_Eye_Video_Overlay
    from seek_bar import Seek_Bar
    from trim_marks import Trim_Marks
    from video_export_launcher import Video_Export_Launcher
    from offline_surface_tracker import Offline_Surface_Tracker
    from marker_auto_trim_marks import Marker_Auto_Trim_Marks
    from fixation_detector import Gaze_Position_2D_Fixation_Detector, Pupil_Angle_3D_Fixation_Detector
    # from manual_gaze_correction import Manual_Gaze_Correction
    from batch_exporter import Batch_Exporter
    from log_display import Log_Display
    from annotations import Annotation_Player
    from raw_data_exporter import Raw_Data_Exporter
    from log_history import Log_History
    from pupil_producers import Pupil_From_Recording, Offline_Pupil_Detection
    from gaze_producers import Gaze_From_Recording, Offline_Calibration

    assert pyglui_version >= '1.7'

    runtime_plugins = import_runtime_plugins(os.path.join(user_dir, 'plugins'))
    system_plugins = [Log_Display, Seek_Bar, Trim_Marks]
    user_launchable_plugins = [Vis_Circle, Vis_Fixation, Vis_Polyline, Vis_Light_Points, Vis_Cross, Vis_Watermark,
                               Vis_Eye_Video_Overlay, Vis_Scan_Path, Gaze_Position_2D_Fixation_Detector,
                               Pupil_Angle_3D_Fixation_Detector, Video_Export_Launcher,
                               Offline_Surface_Tracker, Raw_Data_Exporter, Batch_Exporter, Annotation_Player,
                               Log_History, Marker_Auto_Trim_Marks, Pupil_From_Recording, Offline_Pupil_Detection,
                               Gaze_From_Recording, Offline_Calibration] + runtime_plugins

    available_plugins = system_plugins + user_launchable_plugins
    name_by_index = [p.__name__ for p in available_plugins]
    plugin_by_name = dict(zip(name_by_index, available_plugins))

    # Callback functions
    def on_resize(window, w, h):
        if gl_utils.is_window_visible(window):
            hdpi_factor = float(glfw.glfwGetFramebufferSize(window)[0] / glfw.glfwGetWindowSize(window)[0])
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            for g in g_pool.graphs:
                g.scale = hdpi_factor
                g.adjust_window_size(w, h)
            gl_utils.adjust_gl_view(w, h)
            for p in g_pool.plugins:
                p.on_window_resize(window, w, h)

    def on_window_key(window, key, scancode, action, mods):
        g_pool.gui.update_key(key, scancode, action, mods)

    def on_window_char(window, char):
        g_pool.gui.update_char(char)

    def on_window_mouse_button(window, button, action, mods):
        g_pool.gui.update_button(button, action, mods)

    def on_pos(window, x, y):
        hdpi_factor = float(glfw.glfwGetFramebufferSize(window)[0]/glfw.glfwGetWindowSize(window)[0])
        g_pool.gui.update_mouse(x*hdpi_factor, y*hdpi_factor)

    def on_scroll(window, x, y):
        g_pool.gui.update_scroll(x, y*scroll_factor)

    def on_drop(window, count, paths):
        for x in range(count):
            new_rec_dir = paths[x].decode('utf-8')
            if is_pupil_rec_dir(new_rec_dir):
                logger.debug("Starting new session with '{}'".format(new_rec_dir))
                ipc_pub.notify({"subject": "player_drop_process.should_start", "rec_dir": new_rec_dir})
                glfw.glfwSetWindowShouldClose(window, True)
            else:
                logger.error("'{}' is not a valid pupil recording".format(new_rec_dir))

    tick = delta_t()

    def get_dt():
        return next(tick)

    video_path = [f for f in glob(os.path.join(rec_dir, "world.*"))
                  if os.path.splitext(f)[1] in ('.mp4', '.mkv', '.avi', '.h264', '.mjpeg')][0]
    pupil_data_path = os.path.join(rec_dir, "pupil_data")

    meta_info = load_meta_info(rec_dir)

    # log info about Pupil Platform and Platform in player.log
    logger.info('Application Version: {}'.format(app_version))
    logger.info('System Info: {}'.format(get_system_info()))

    # create container for globally scoped vars
    g_pool = Global_Container()
    g_pool.app = 'player'
    g_pool.zmq_ctx = zmq_ctx
    g_pool.ipc_pub = ipc_pub
    g_pool.ipc_pub_url = ipc_pub_url
    g_pool.ipc_sub_url = ipc_sub_url
    g_pool.ipc_push_url = ipc_push_url

    # Initialize capture
    cap = File_Source(g_pool, video_path)

    # load session persistent settings
    session_settings = Persistent_Dict(os.path.join(user_dir, "user_settings"))
    if VersionFormat(session_settings.get("version", '0.0')) != app_version:
        logger.info("Session setting are a different version of this app. I will not use those.")
        session_settings.clear()

    width, height = session_settings.get('window_size', cap.frame_size)
    window_pos = session_settings.get('window_position', window_position_default)
    glfw.glfwInit()
    main_window = glfw.glfwCreateWindow(width, height, "Pupil Player: "+meta_info["Recording Name"]+" - "
                                   + rec_dir.split(os.path.sep)[-1], None, None)
    glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
    glfw.glfwMakeContextCurrent(main_window)
    cygl.utils.init()

    def set_scale(new_scale):
        g_pool.gui_user_scale = new_scale
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

    # load pupil_positions, gaze_positions
    g_pool.pupil_data = load_object(pupil_data_path)
    g_pool.binocular = meta_info.get('Eye Mode', 'monocular') == 'binocular'
    g_pool.version = app_version
    g_pool.capture = cap
    g_pool.timestamps = g_pool.capture.timestamps
    g_pool.get_timestamp = lambda: 0.
    g_pool.play = False
    g_pool.new_seek = True
    g_pool.user_dir = user_dir
    g_pool.rec_dir = rec_dir
    g_pool.meta_info = meta_info
    g_pool.min_data_confidence = session_settings.get('min_data_confidence', 0.6)

    g_pool.pupil_positions = []
    g_pool.gaze_positions = []
    g_pool.fixations = []

    g_pool.notifications_by_frame = correlate_data(g_pool.pupil_data['notifications'], g_pool.timestamps)
    g_pool.pupil_positions_by_frame = [[] for x in g_pool.timestamps] # populated by producer`
    g_pool.gaze_positions_by_frame = [[] for x in g_pool.timestamps] # populated by producer
    g_pool.fixations_by_frame = [[] for x in g_pool.timestamps]  # populated by the fixation detector plugin

    def next_frame(_):
        try:
            cap.seek_to_frame(cap.get_frame_index() + 1)
        except(FileSeekError):
            logger.warning("Could not seek to next frame.")
        else:
            g_pool.new_seek = True

    def prev_frame(_):
        try:
            cap.seek_to_frame(cap.get_frame_index() - 1)
        except(FileSeekError):
            logger.warning("Could not seek to previous frame.")
        else:
            g_pool.new_seek = True

    def toggle_play(new_state):
        if cap.get_frame_index() >= cap.get_frame_count()-5:
            cap.seek_to_frame(1)  # avoid pause set by hitting trimmark pause.
            logger.warning("End of video - restart at beginning.")
        g_pool.play = new_state

    def set_data_confidence(new_confidence):
        g_pool.min_data_confidence = new_confidence
        notification = {'subject': 'min_data_confidence_changed'}
        notification['_notify_time_'] = time()+.8
        g_pool.ipc_pub.notify(notification)

    def open_plugin(plugin):
        if plugin == "Select to load":
            return
        g_pool.plugins.add(plugin)

    def purge_plugins():
        for p in g_pool.plugins:
            if p.__class__ in user_launchable_plugins:
                p.alive = False
        g_pool.plugins.clean()

    def do_export(_):
        export_range = g_pool.trim_marks.in_mark, g_pool.trim_marks.out_mark
        export_dir = os.path.join(g_pool.rec_dir, 'exports', '{}-{}'.format(*export_range))
        try:
            os.makedirs(export_dir)
        except OSError as e:
            if e.errno != errno.EEXIST:
                logger.error("Could not create export dir")
                raise e
            else:
                overwrite_warning = "Previous export for range [{}-{}] already exsits - overwriting."
                logger.warning(overwrite_warning.format(*export_range))
        else:
            logger.info('Created export dir at "{}"'.format(export_dir))

        notification = {'subject': 'should_export', 'range': export_range, 'export_dir': export_dir}
        g_pool.ipc_pub.notify(notification)

    g_pool.gui = ui.UI()
    g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
    g_pool.main_menu = ui.Scrolling_Menu("Settings", pos=(-350, 20), size=(300, 560))
    g_pool.main_menu.append(ui.Button('Reset window size',
                                      lambda: glfw.glfwSetWindowSize(main_window, cap.frame_size[0], cap.frame_size[1])))
    g_pool.main_menu.append(ui.Selector('gui_user_scale', g_pool, setter=set_scale, selection=[.8, .9, 1., 1.1, 1.2], label='Interface Size'))
    g_pool.main_menu.append(ui.Info_Text('Player Version: {}'.format(g_pool.version)))
    g_pool.main_menu.append(ui.Info_Text('Capture Version: {}'.format(meta_info['Capture Software Version'])))
    g_pool.main_menu.append(ui.Info_Text('Data Format Version: {}'.format(meta_info['Data Format Version'])))
    g_pool.main_menu.append(ui.Slider('min_data_confidence', g_pool, setter=set_data_confidence,
                                      step=.05, min=0.0, max=1.0, label='Confidence threshold'))

    g_pool.main_menu.append(ui.Info_Text('Open plugins'))

    selector_label = "Select to load"

    def append_selector(label, plugins):
        plugins.sort(key=lambda p: p.__name__)
        plugin_labels = [p.__name__.replace('_', ' ') for p in plugins]
        g_pool.main_menu.append(ui.Selector(label,
                                            selection=[selector_label] + plugins,
                                            labels=[selector_label] + plugin_labels,
                                            setter=open_plugin,
                                            getter=lambda: selector_label))

    base_plugins = [Visualizer_Plugin_Base, Analysis_Plugin_Base, Producer_Plugin_Base]
    base_labels = ['Visualizer:', 'Analyser:', 'Data Source:']
    launchable = user_launchable_plugins.copy()
    for base_class, label in zip(base_plugins, base_labels):
        member_plugins = []
        for p in user_launchable_plugins:
            if issubclass(p, base_class):
                member_plugins.append(p)
                launchable.remove(p)
        append_selector(label, member_plugins)

    # launchable only contains plugins that could not be assigned to any of the above categories
    append_selector('Other', launchable)

    g_pool.main_menu.append(ui.Button('Close all plugins', purge_plugins))
    g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100), (120, -100))
    g_pool.play_button = ui.Thumb('play',
                                  g_pool,
                                  label=chr(0xf04b),
                                  setter=toggle_play,
                                  hotkey=glfw.GLFW_KEY_SPACE,
                                  label_font='fontawesome',
                                  label_offset_x=5,
                                  label_offset_y=0,
                                  label_offset_size=-24)
    g_pool.play_button.on_color[:] = (0, 1., .0, .8)
    g_pool.forward_button = ui.Thumb('forward',
                                     label=chr(0xf04e),
                                     getter=lambda: False,
                                     setter=next_frame,
                                     hotkey=glfw.GLFW_KEY_RIGHT,
                                     label_font='fontawesome',
                                     label_offset_x=5,
                                     label_offset_y=0,
                                     label_offset_size=-24)
    g_pool.backward_button = ui.Thumb('backward',
                                      label=chr(0xf04a),
                                      getter=lambda: False,
                                      setter=prev_frame,
                                      hotkey=glfw.GLFW_KEY_LEFT,
                                      label_font='fontawesome',
                                      label_offset_x=-5,
                                      label_offset_y=0,
                                      label_offset_size=-24)
    g_pool.export_button = ui.Thumb('export',
                                    label=chr(0xf063),
                                    getter=lambda: False,
                                    setter=do_export,
                                    hotkey='e',
                                    label_font='fontawesome',
                                    label_offset_x=0,
                                    label_offset_y=2,
                                    label_offset_size=-24)
    g_pool.quickbar.extend([g_pool.play_button, g_pool.forward_button, g_pool.backward_button, g_pool.export_button])
    g_pool.gui.append(g_pool.quickbar)
    g_pool.gui.append(g_pool.main_menu)

    # we always load these plugins
    system_plugins = [('Trim_Marks', {}), ('Seek_Bar', {})]
    default_plugins = [('Log_Display', {}), ('Vis_Scan_Path', {}), ('Vis_Polyline', {}),
                       ('Vis_Circle', {}), ('Video_Export_Launcher', {}),
                       ('Pupil_From_Recording', {}), ('Gaze_From_Recording', {})]
    previous_plugins = session_settings.get('loaded_plugins', default_plugins)
    g_pool.plugins = Plugin_List(g_pool, plugin_by_name, system_plugins+previous_plugins)


    # Register callbacks main_window
    glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
    glfw.glfwSetKeyCallback(main_window, on_window_key)
    glfw.glfwSetCharCallback(main_window, on_window_char)
    glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
    glfw.glfwSetCursorPosCallback(main_window, on_pos)
    glfw.glfwSetScrollCallback(main_window, on_scroll)
    glfw.glfwSetDropCallback(main_window, on_drop)

    g_pool.gui.configuration = session_settings.get('ui_config', {})

    # gl_state settings
    gl_utils.basic_gl_setup()
    g_pool.image_tex = Named_Texture()

    # set up performace graphs:
    pid = os.getpid()
    ps = psutil.Process(pid)
    ts = None

    cpu_graph = graph.Bar_Graph()
    cpu_graph.pos = (20, 110)
    cpu_graph.update_fn = ps.cpu_percent
    cpu_graph.update_rate = 5
    cpu_graph.label = 'CPU %0.1f'

    fps_graph = graph.Bar_Graph()
    fps_graph.pos = (140, 110)
    fps_graph.update_rate = 5
    fps_graph.label = "%0.0f REC FPS"

    pupil_graph = graph.Bar_Graph(max_val=1.0)
    pupil_graph.pos = (260, 110)
    pupil_graph.update_rate = 5
    pupil_graph.label = "Confidence: %0.2f"
    g_pool.graphs = [cpu_graph, fps_graph, pupil_graph]

    # trigger on_resize
    on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

    def handle_notifications(n):
        subject = n['subject']
        if subject == 'start_plugin':
            g_pool.plugins.add(
                plugin_by_name[n['name']], args=n.get('args', {}))
        elif subject.startswith('meta.should_doc'):
            ipc_pub.notify({'subject': 'meta.doc',
                            'actor': g_pool.app,
                            'doc': player.__doc__})
            for p in g_pool.plugins:
                if (p.on_notify.__doc__
                        and p.__class__.on_notify != Plugin.on_notify):
                    ipc_pub.notify({'subject': 'meta.doc',
                                    'actor': p.class_name,
                                    'doc': p.on_notify.__doc__})

    while not glfw.glfwWindowShouldClose(main_window):

        # fetch newest notifications
        new_notifications = []
        while notify_sub.new_data:
            t, n = notify_sub.recv()
            new_notifications.append(n)

        # notify each plugin if there are new notifications:
        for n in new_notifications:
            handle_notifications(n)
            for p in g_pool.plugins:
                p.on_notify(n)

        # grab new frame
        if g_pool.play or g_pool.new_seek:
            g_pool.new_seek = False
            try:
                new_frame = cap.get_frame()
            except EndofVideoFileError:
                # end of video logic: pause at last frame.
                g_pool.play = False
                logger.warning("end of video")
            update_graph = True
        else:
            update_graph = False

        frame = new_frame.copy()
        events = {}
        events['frame'] = frame
        # report time between now and the last loop interation
        events['dt'] = get_dt()
        # new positons we make a deepcopy just like the image is a copy.
        events['gaze_positions'] = deepcopy(g_pool.gaze_positions_by_frame[frame.index])
        events['pupil_positions'] = deepcopy(g_pool.pupil_positions_by_frame[frame.index])

        if update_graph:
            # update performace graphs
            for p in events['pupil_positions']:
                pupil_graph.add(p['confidence'])

            t = new_frame.timestamp
            if ts and ts != t:
                dt, ts = t-ts, t
                fps_graph.add(1./dt)
            else:
                ts = new_frame.timestamp

            g_pool.play_button.status_text = str(frame.index)
        # always update the CPU graph
        cpu_graph.update()

        # allow each Plugin to do its work.
        for p in g_pool.plugins:
            p.recent_events(events)

        # check if a plugin need to be destroyed
        g_pool.plugins.clean()

        # render camera image
        glfw.glfwMakeContextCurrent(main_window)
        gl_utils.make_coord_system_norm_based()
        g_pool.image_tex.update_from_ndarray(frame.bgr)
        g_pool.image_tex.draw()
        gl_utils.make_coord_system_pixel_based(frame.img.shape)
        # render visual feedback from loaded plugins
        for p in g_pool.plugins:
            p.gl_display()

        fps_graph.draw()
        cpu_graph.draw()
        pupil_graph.draw()
        unused_elements = g_pool.gui.update()
        for b in unused_elements.buttons:
            button, action, mods = b
            pos = glfw.glfwGetCursorPos(main_window)
            pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
            pos = denormalize(pos, (frame.img.shape[1], frame.img.shape[0]))  # Position in img pixels
            for p in g_pool.plugins:
                p.on_click(pos, button, action)

        for key, scancode, action, mods in unused_elements.keys:
            for p in g_pool.plugins:
                p.on_key(key, scancode, action, mods)

        for char_ in unused_elements.chars:
            for p in g_pool.plugins:
                p.on_char(char_)

        # present frames at appropriate speed
        cap.wait(frame)

        glfw.glfwSwapBuffers(main_window)
        glfw.glfwPollEvents()

    session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
    session_settings['min_data_confidence'] = g_pool.min_data_confidence
    session_settings['gui_scale'] = g_pool.gui_user_scale
    session_settings['ui_config'] = g_pool.gui.configuration
    session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
    session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
    session_settings['version'] = str(g_pool.version)
    session_settings.close()

    # de-init all running plugins
    for p in g_pool.plugins:
        p.alive = False
    g_pool.plugins.clean()

    cap.cleanup()
    g_pool.gui.terminate()
    glfw.glfwDestroyWindow(main_window)

    logger.info("Process shutting down.")
    ipc_pub.notify({'subject': 'player_process.stopped'})
Ejemplo n.º 14
0
import json
ctx = zmq.Context()
requester = ctx.socket(zmq.REQ)
# ip = '10.16.3.140'
ip = 'localhost'
port = 50020
requester.connect('tcp://%s:%s' % (ip, port))
requester.send_string('SUB_PORT')
sub_port = requester.recv_string()

TCP_IP = '0.0.0.0'
TCP_PORT = 5005
BUFFER_SIZE = 20  # Normally 1024, but we want fast response
ipc_sub_url = 'tcp://%s:%s' % (ip, sub_port)
print(ipc_sub_url)
pupil_sub = zmq_tools.Msg_Receiver(ctx, ipc_sub_url, topics=('gaze', ))
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((TCP_IP, TCP_PORT))
s.listen(1)
while True:
    try:
        print('Socket established. Waiting for connection...')
        conn, addr = s.accept()
        print('Connection address:', addr)
        while True:
            topic, pupil_datum = pupil_sub.recv()
            str_data = json.dumps(pupil_datum) + "\n"
            print(topic, ':', str_data)
            conn.send(str_data.encode())
    except KeyboardInterrupt:
        raise
Ejemplo n.º 15
0
def service(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url, ipc_push_url,
            user_dir, version):
    """Maps pupil to gaze data, can run various plug-ins.

    Reacts to notifications:
       ``set_detection_mapping_mode``: Sets detection method
       ``start_plugin``: Starts given plugin with the given arguments
       ``eye_process.started``: Sets the detection method eye process
       ``service_process.should_stop``: Stops the service process

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``service_process.started``
        ``service_process.stopped``
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the service process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    from time import sleep
    import logging
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    gaze_pub = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    pupil_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                       ipc_sub_url,
                                       topics=('pupil', ))
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=('notify', ))

    poller = zmq.Poller()
    poller.register(pupil_sub.socket)
    poller.register(notify_sub.socket)

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    try:

        # helpers/utils
        from file_methods import Persistent_Dict
        from methods import delta_t, get_system_info
        from version_utils import VersionFormat
        import audio
        from uvc import get_time_monotonic

        # trigger pupil detector cpp build:
        import pupil_detectors
        del pupil_detectors

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from calibration_routines import calibration_plugins, gaze_mapping_plugins
        from pupil_remote import Pupil_Remote
        from pupil_groups import Pupil_Groups

        logger.info('Application Version: {}'.format(version))
        logger.info('System Info: {}'.format(get_system_info()))

        # g_pool holds variables for this process they are accesible to all plugins
        g_pool = Global_Container()
        g_pool.app = 'service'
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.get_now = get_time_monotonic
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.eyes_are_alive = eyes_are_alive
        g_pool.timebase = timebase

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp

        # manage plugins
        runtime_plugins = import_runtime_plugins(
            os.path.join(g_pool.user_dir, 'plugins'))
        user_launchable_plugins = [Pupil_Groups, Pupil_Remote
                                   ] + runtime_plugins
        plugin_by_index = runtime_plugins + calibration_plugins + gaze_mapping_plugins + user_launchable_plugins
        name_by_index = [p.__name__ for p in plugin_by_index]
        plugin_by_name = dict(zip(name_by_index, plugin_by_index))
        default_plugins = [('Dummy_Gaze_Mapper', {}), ('HMD_Calibration', {}),
                           ('Pupil_Remote', {})]

        tick = delta_t()

        def get_dt():
            return next(tick)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, 'user_settings_service'))
        if session_settings.get("version",
                                VersionFormat('0.0')) < g_pool.version:
            logger.info(
                "Session setting are from older version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.detection_mapping_mode = session_settings.get(
            'detection_mapping_mode', '2d')
        g_pool.active_calibration_plugin = None
        g_pool.active_gaze_mapping_plugin = None

        audio.audio_mode = session_settings.get('audio_mode',
                                                audio.default_audio_mode)

        # plugins that are loaded based on user settings from previous session
        g_pool.plugins = Plugin_List(
            g_pool, plugin_by_name,
            session_settings.get('loaded_plugins', default_plugins))

        def launch_eye_process(eye_id, delay=0):
            n = {
                'subject': 'eye_process.should_start',
                'eye_id': eye_id,
                'delay': delay
            }
            ipc_pub.notify(n)

        def stop_eye_process(eye_id):
            n = {'subject': 'eye_process.should_stop', 'eye_id': eye_id}
            ipc_pub.notify(n)

        def handle_notifications(n):
            subject = n['subject']
            if subject == 'set_detection_mapping_mode':
                if n['mode'] == '2d':
                    if "Vector_Gaze_Mapper" in g_pool.active_gaze_mapping_plugin.class_name:
                        logger.warning(
                            "The gaze mapper is not supported in 2d mode. Please recalibrate."
                        )
                        g_pool.plugins.add(plugin_by_name['Dummy_Gaze_Mapper'])
                g_pool.detection_mapping_mode = n['mode']
            elif subject == 'start_plugin':
                g_pool.plugins.add(plugin_by_name[n['name']],
                                   args=n.get('args', {}))
            elif subject == 'eye_process.started':
                n = {
                    'subject': 'set_detection_mapping_mode',
                    'mode': g_pool.detection_mapping_mode
                }
                ipc_pub.notify(n)
            elif subject == 'service_process.should_stop':
                g_pool.service_should_run = False
            elif subject.startswith('meta.should_doc'):
                ipc_pub.notify({
                    'subject': 'meta.doc',
                    'actor': g_pool.app,
                    'doc': service.__doc__
                })
                for p in g_pool.plugins:
                    if p.on_notify.__doc__ and p.__class__.on_notify != Plugin.on_notify:
                        ipc_pub.notify({
                            'subject': 'meta.doc',
                            'actor': p.class_name,
                            'doc': p.on_notify.__doc__
                        })

        if session_settings.get('eye1_process_alive', False):
            launch_eye_process(1, delay=0.3)
        if session_settings.get('eye0_process_alive', True):
            launch_eye_process(0, delay=0.0)

        ipc_pub.notify({'subject': 'service_process.started'})
        logger.warning('Process started.')
        g_pool.service_should_run = True

        # Event loop
        while g_pool.service_should_run:
            socks = dict(poller.poll())
            if pupil_sub.socket in socks:
                t, p = pupil_sub.recv()
                new_gaze_data = g_pool.active_gaze_mapping_plugin.on_pupil_datum(
                    p)
                for g in new_gaze_data:
                    gaze_pub.send('gaze', g)

                events = {}
                events['gaze_positions'] = new_gaze_data
                events['pupil_positions'] = [p]
                for plugin in g_pool.plugins:
                    plugin.recent_events(events=events)

            if notify_sub.socket in socks:
                t, n = notify_sub.recv()
                handle_notifications(n)
                for plugin in g_pool.plugins:
                    plugin.on_notify(n)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

        session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
        session_settings['version'] = g_pool.version
        session_settings['eye0_process_alive'] = eyes_are_alive[0].value
        session_settings['eye1_process_alive'] = eyes_are_alive[1].value
        session_settings[
            'detection_mapping_mode'] = g_pool.detection_mapping_mode
        session_settings['audio_mode'] = audio.audio_mode
        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

    except:
        import traceback
        trace = traceback.format_exc()
        logger.error('Process Service crashed with trace:\n{}'.format(trace))

    finally:
        # shut down eye processes:
        stop_eye_process(0)
        stop_eye_process(1)

        logger.info("Process shutting down.")
        ipc_pub.notify({'subject': 'service_process.stopped'})

        # shut down launcher
        n = {'subject': 'launcher_process.should_stop'}
        ipc_pub.notify(n)
        sleep(1.0)
Ejemplo n.º 16
0
def world(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url,
          ipc_push_url, user_dir, version):
    """Reads world video and runs plugins.

    Creates a window, gl context.
    Grabs images from a capture.
    Maps pupil to gaze data
    Can run various plug-ins.

    Reacts to notifications:
        ``set_detection_mapping_mode``
        ``eye_process.started``
        ``start_plugin``

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``world_process.started``
        ``world_process.stopped``
        ``recording.should_stop``: Emits on camera failure
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events
               that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    from time import sleep
    import logging

    # networking
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=('notify',))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    # logger.setLevel(logging.DEBUG)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    def launch_eye_process(eye_id, delay=0):
        n = {'subject': 'eye_process.should_start.{}'.format(eye_id),
             'eye_id': eye_id, 'delay': delay}
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {'subject': 'eye_process.should_stop.{}'.format(eye_id), 'eye_id': eye_id,'delay':0.2}
        ipc_pub.notify(n)

    def start_stop_eye(eye_id, make_alive):
        if make_alive:
            launch_eye_process(eye_id)
        else:
            stop_eye_process(eye_id)

    def set_detection_mapping_mode(new_mode):
        n = {'subject': 'set_detection_mapping_mode', 'mode': new_mode}
        ipc_pub.notify(n)

    try:

        # display
        import glfw
        from version_utils import VersionFormat
        from pyglui import ui, cygl, __version__ as pyglui_version
        assert VersionFormat(pyglui_version) >= VersionFormat('1.15'), 'pyglui out of date, please upgrade to newest version'
        from pyglui.cygl.utils import Named_Texture
        import gl_utils

        # helpers/utils
        from file_methods import Persistent_Dict
        from methods import normalize, denormalize, delta_t, get_system_info, timer
        from uvc import get_time_monotonic
        logger.info('Application Version: {}'.format(version))
        logger.info('System Info: {}'.format(get_system_info()))

        import audio

        # trigger pupil detector cpp build:
        import pupil_detectors
        del pupil_detectors

        # Plug-ins
        from plugin import Plugin, System_Plugin_Base, Plugin_List, import_runtime_plugins
        from plugin_manager import Plugin_Manager
        from calibration_routines import calibration_plugins, gaze_mapping_plugins, Calibration_Plugin, Gaze_Mapping_Plugin
        from fixation_detector import Fixation_Detector
        from recorder import Recorder
        from display_recent_gaze import Display_Recent_Gaze
        from time_sync import Time_Sync
        from pupil_remote import Pupil_Remote
        from pupil_groups import Pupil_Groups
        from surface_tracker import Surface_Tracker
        from log_display import Log_Display
        from annotations import Annotation_Capture
        from log_history import Log_History
        from frame_publisher import Frame_Publisher
        from blink_detection import Blink_Detection
        from video_capture import source_classes, manager_classes,Base_Manager,Base_Source
        from pupil_data_relay import Pupil_Data_Relay
        from remote_recorder import Remote_Recorder
        from audio_capture import Audio_Capture
        from accuracy_visualizer import Accuracy_Visualizer
        # from saccade_detector import Saccade_Detector
        from system_graphs import System_Graphs
        from camera_intrinsics_estimation import Camera_Intrinsics_Estimation
        from hololens_relay import Hololens_Relay

        # UI Platform tweaks
        if platform.system() == 'Linux':
            scroll_factor = 10.0
            window_position_default = (30, 30)
        elif platform.system() == 'Windows':
            scroll_factor = 10.0
            window_position_default = (8, 90)
        else:
            scroll_factor = 1.0
            window_position_default = (0, 0)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None
        hdpi_factor = 1.0

        # g_pool holds variables for this process they are accessible to all plugins
        g_pool = Global_Container()
        g_pool.app = 'capture'
        g_pool.process = 'world'
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.timebase = timebase
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.eyes_are_alive = eyes_are_alive

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value
        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # manage plugins
        runtime_plugins = import_runtime_plugins(os.path.join(g_pool.user_dir, 'plugins'))
        user_plugins = [Audio_Capture,
                        Pupil_Groups,
                        Frame_Publisher,
                        Pupil_Remote,
                        Time_Sync,
                        Surface_Tracker,
                        Annotation_Capture,
                        Log_History,
                        Fixation_Detector,
                        Blink_Detection,
                        Remote_Recorder,
                        Accuracy_Visualizer,
                        Camera_Intrinsics_Estimation,
                        Hololens_Relay]
        system_plugins = [Log_Display, Display_Recent_Gaze, Recorder, Pupil_Data_Relay, Plugin_Manager, System_Graphs] + manager_classes + source_classes
        plugins = system_plugins + user_plugins + runtime_plugins + calibration_plugins + gaze_mapping_plugins
        user_plugins += [p for p in runtime_plugins if not isinstance(p, (Base_Manager, Base_Source, System_Plugin_Base,
                                                                          Calibration_Plugin, Gaze_Mapping_Plugin))]
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}

        default_capture_settings = {
            'preferred_names': ["Pupil Cam1 ID2", "Logitech Camera", "(046d:081d)",
                                "C510", "B525", "C525", "C615", "C920", "C930e"],
            'frame_size': (1280, 720),
            'frame_rate': 30
        }

        default_plugins = [("UVC_Source", default_capture_settings),
                           ('Pupil_Data_Relay', {}),
                           ('UVC_Manager', {}),
                           ('Log_Display', {}),
                           ('Dummy_Gaze_Mapper', {}),
                           ('Display_Recent_Gaze', {}),
                           ('Screen_Marker_Calibration', {}),
                           ('Recorder', {}),
                           ('Pupil_Remote', {}),
                           ('Plugin_Manager', {}),
                           ('System_Graphs', {})]

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size
            nonlocal hdpi_factor
            if w == 0 or h == 0:
                return
            hdpi_factor = glfw.getHDPIFactor(window)
            g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
            window_size = w,h
            camera_render_size = w-int(icon_bar_width*g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()

            for p in g_pool.plugins:
                p.on_window_resize(window, *camera_render_size)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = x * hdpi_factor, y * hdpi_factor
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode('utf-8') for x in range(count)]
            for p in g_pool.plugins:
                p.on_drop(paths)

        tick = delta_t()

        def get_dt():
            return next(tick)

        # load session persistent settings
        session_settings = Persistent_Dict(os.path.join(g_pool.user_dir, 'user_settings_world'))
        if VersionFormat(session_settings.get("version", '0.0')) != g_pool.version:
            logger.info("Session setting are from a different version of this app. I will not use those.")
            session_settings.clear()

        g_pool.min_calibration_confidence = session_settings.get('min_calibration_confidence', 0.8)
        g_pool.detection_mapping_mode = session_settings.get('detection_mapping_mode', '3d')
        g_pool.active_calibration_plugin = None
        g_pool.active_gaze_mapping_plugin = None
        g_pool.capture = None

        audio.audio_mode = session_settings.get('audio_mode', audio.default_audio_mode)

        def handle_notifications(n):
            subject = n['subject']
            if subject == 'set_detection_mapping_mode':
                if n['mode'] == '2d':
                    if ("Vector_Gaze_Mapper" in
                            g_pool.active_gaze_mapping_plugin.class_name):
                        logger.warning("The gaze mapper is not supported in 2d mode. Please recalibrate.")
                        g_pool.plugins.add(g_pool.plugin_by_name['Dummy_Gaze_Mapper'])
                g_pool.detection_mapping_mode = n['mode']
            elif subject == 'start_plugin':
                g_pool.plugins.add(g_pool.plugin_by_name[n['name']], args=n.get('args', {}))
            elif subject == 'stop_plugin':
                for p in g_pool.plugins:
                    if p.class_name == n['name']:
                        p.alive = False
                        g_pool.plugins.clean()
            elif subject == 'eye_process.started':
                n = {'subject': 'set_detection_mapping_mode',
                     'mode': g_pool.detection_mapping_mode}
                ipc_pub.notify(n)
            elif subject.startswith('meta.should_doc'):
                ipc_pub.notify({'subject': 'meta.doc',
                                'actor': g_pool.app,
                                'doc': world.__doc__})
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({'subject': 'meta.doc',
                                        'actor': p.class_name,
                                        'doc': p.on_notify.__doc__})

        width, height = session_settings.get('window_size', (1280 + icon_bar_width, 720))

        # window and gl setup
        glfw.glfwInit()
        main_window = glfw.glfwCreateWindow(width, height, "Pupil Capture - World")
        window_pos = session_settings.get('window_position', window_position_default)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def set_scale(new_scale):
            g_pool.gui_user_scale = new_scale
            window_size = camera_render_size[0] + \
                int(icon_bar_width * g_pool.gui_user_scale * hdpi_factor), \
                glfw.glfwGetFramebufferSize(main_window)[1]
            logger.warning(icon_bar_width*g_pool.gui_user_scale*hdpi_factor)
            glfw.glfwSetWindowSize(main_window, *window_size)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Capture.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({'subject': 'clear_settings_process.should_start'})
            ipc_pub.notify({'subject': 'world_process.should_start', 'delay': 2.})

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is opened, the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
        g_pool.menubar = ui.Scrolling_Menu("Settings", pos=(-400, 0), size=(-icon_bar_width, 0), header_pos='left')
        g_pool.iconbar = ui.Scrolling_Menu("Icons",pos=(-icon_bar_width,0),size=(0,0),header_pos='hidden')
        g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100), (120, -100))
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        general_settings = ui.Growing_Menu('General',header_pos='headline')
        general_settings.append(ui.Selector('gui_user_scale', g_pool, setter=set_scale, selection=[.6, .8, 1., 1.2, 1.4], label='Interface size'))

        def set_window_size():
            f_width, f_height = g_pool.capture.frame_size
            f_width += int(icon_bar_width*g_pool.gui.scale)
            glfw.glfwSetWindowSize(main_window, f_width, f_height)

        general_settings.append(ui.Button('Reset window size', set_window_size))
        general_settings.append(ui.Selector('audio_mode', audio, selection=audio.audio_modes))
        general_settings.append(ui.Selector('detection_mapping_mode',
                                            g_pool,
                                            label='detection & mapping mode',
                                            setter=set_detection_mapping_mode,
                                            selection=['disabled', '2d', '3d']))
        general_settings.append(ui.Switch('eye0_process',
                                            label='Detect eye 0',
                                            setter=lambda alive: start_stop_eye(0,alive),
                                            getter=lambda: eyes_are_alive[0].value
                                        ))
        general_settings.append(ui.Switch('eye1_process',
                                            label='Detect eye 1',
                                            setter=lambda alive: start_stop_eye(1,alive),
                                            getter=lambda: eyes_are_alive[1].value
                                        ))

        general_settings.append(ui.Info_Text('Capture Version: {}'.format(g_pool.version)))
        general_settings.append(ui.Button('Restart with default settings', reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon('collapsed', general_settings, label=chr(0xe8b8), on_val=False, off_val=True, setter=toggle_general_settings, label_font='pupil_icons')
        icon.tooltip = 'General Settings'
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        # plugins that are loaded based on user settings from previous session
        g_pool.plugins = Plugin_List(g_pool, session_settings.get('loaded_plugins', default_plugins))

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        toggle_general_settings(True)

        # now that we have a proper window we can load the last gui configuration
        g_pool.gui.configuration = session_settings.get('ui_config', {})

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)
        def window_should_update():
            return next(window_update_timer)

        # trigger setup of window and gl sizes
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        if session_settings.get('eye1_process_alive', False):
            launch_eye_process(1, delay=0.6)
        if session_settings.get('eye0_process_alive', True):
            launch_eye_process(0, delay=0.3)

        ipc_pub.notify({'subject': 'world_process.started'})
        logger.warning('Process started.')

        # Event loop
        while not glfw.glfwWindowShouldClose(main_window):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            # a dictionary that allows plugins to post and read events
            events = {}
            # report time between now and the last loop interation
            events['dt'] = get_dt()

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            # send new events to ipc:
            del events['pupil_positions']  # already on the wire
            del events['gaze_positions']  # sent earlier
            if 'frame' in events:
                del events['frame']  # send explicitly with frame publisher
            if 'depth_frame' in events:
                del events['depth_frame']
            if 'audio_packets' in events:
                del events['audio_packets']
            del events['dt']  # no need to send this
            for topic, data in events.items():
                assert(isinstance(data, (list, tuple)))
                for d in data:
                    ipc_pub.send(topic, d)

            glfw.glfwMakeContextCurrent(main_window)
            # render visual feedback from loaded plugins
            if window_should_update() and gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *camera_render_size)
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)
                try:
                    clipboard = glfw.glfwGetClipboardString(main_window).decode()
                except AttributeError:  # clipboard is None, might happen on startup
                    clipboard = ''
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.glfwSetClipboardString(main_window, user_input.clipboard.encode())

                for button, action, mods in user_input.buttons:
                    x, y = glfw.glfwGetCursorPos(main_window)
                    pos = x * hdpi_factor, y * hdpi_factor
                    pos = normalize(pos, camera_render_size)
                    # Position in img pixels
                    pos = denormalize(pos, g_pool.capture.frame_size)
                    for p in g_pool.plugins:
                        p.on_click(pos, button, action)

                for key, scancode, action, mods in user_input.keys:
                    for p in g_pool.plugins:
                        p.on_key(key, scancode, action, mods)

                for char_ in user_input.chars:
                    for p in g_pool.plugins:
                        p.on_char(char_)

                glfw.glfwSwapBuffers(main_window)
            glfw.glfwPollEvents()

        glfw.glfwRestoreWindow(main_window)  # need to do this for windows os
        session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
        session_settings['gui_scale'] = g_pool.gui_user_scale
        session_settings['ui_config'] = g_pool.gui.configuration
        session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
        session_settings['version'] = str(g_pool.version)
        session_settings['eye0_process_alive'] = eyes_are_alive[0].value
        session_settings['eye1_process_alive'] = eyes_are_alive[1].value
        session_settings['min_calibration_confidence'] = g_pool.min_calibration_confidence
        session_settings['detection_mapping_mode'] = g_pool.detection_mapping_mode
        session_settings['audio_mode'] = audio.audio_mode

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            session_settings['window_size'] = session_window_size

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)
        glfw.glfwTerminate()

    except:
        import traceback
        trace = traceback.format_exc()
        logger.error('Process Capture crashed with trace:\n{}'.format(trace))

    finally:
        # shut down eye processes:
        stop_eye_process(0)
        stop_eye_process(1)

        logger.info("Process shutting down.")
        ipc_pub.notify({'subject': 'world_process.stopped'})
        sleep(1.0)
Ejemplo n.º 17
0
def world(timebase, eyes_are_alive, ipc_pub_url, ipc_sub_url, ipc_push_url,
          user_dir, version, cap_src):
    """Reads world video and runs plugins.

    Creates a window, gl context.
    Grabs images from a capture.
    Maps pupil to gaze data
    Can run various plug-ins.

    Reacts to notifications:
        ``set_detection_mapping_mode``
        ``eye_process.started``
        ``start_plugin``

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``set_detection_mapping_mode``
        ``world_process.started``
        ``world_process.stopped``
        ``recording.should_stop``: Emits on camera failure
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    # This is not harmful but unnecessary.

    #general imports
    from time import time, sleep
    import numpy as np
    import logging
    import zmq
    import zmq_tools
    #zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    gaze_pub = zmq_tools.Msg_Streamer(zmq_ctx, ipc_pub_url)
    pupil_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                       ipc_sub_url,
                                       topics=('pupil', ))
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=('notify', ))

    #log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    #display
    import glfw
    from pyglui import ui, graph, cygl
    from pyglui.cygl.utils import Named_Texture
    from gl_utils import basic_gl_setup, adjust_gl_view, clear_gl_screen, make_coord_system_pixel_based, make_coord_system_norm_based, glFlush

    #check versions for our own depedencies as they are fast-changing
    from pyglui import __version__ as pyglui_version
    assert pyglui_version >= '0.8'

    #monitoring
    import psutil

    # helpers/utils
    from file_methods import Persistent_Dict
    from methods import normalize, denormalize, delta_t, get_system_info
    from video_capture import autoCreateCapture, FileCaptureError, EndofVideoFileError, CameraCaptureError
    from version_utils import VersionFormat
    import audio
    from uvc import get_time_monotonic

    #trigger pupil detector cpp build:
    import pupil_detectors
    del pupil_detectors

    # Plug-ins
    from plugin import Plugin, Plugin_List, import_runtime_plugins
    from calibration_routines import calibration_plugins, gaze_mapping_plugins
    from recorder import Recorder
    from show_calibration import Show_Calibration
    from display_recent_gaze import Display_Recent_Gaze
    from pupil_sync import Pupil_Sync
    from pupil_remote import Pupil_Remote
    from surface_tracker import Surface_Tracker
    from log_display import Log_Display
    from annotations import Annotation_Capture
    from log_history import Log_History

    logger.info('Application Version: %s' % version)
    logger.info('System Info: %s' % get_system_info())

    #UI Platform tweaks
    if platform.system() == 'Linux':
        scroll_factor = 10.0
        window_position_default = (0, 0)
    elif platform.system() == 'Windows':
        scroll_factor = 1.0
        window_position_default = (8, 31)
    else:
        scroll_factor = 1.0
        window_position_default = (0, 0)

    #g_pool holds variables for this process they are accesible to all plugins
    g_pool = Global_Container()
    g_pool.app = 'capture'
    g_pool.user_dir = user_dir
    g_pool.version = version
    g_pool.timebase = timebase
    g_pool.zmq_ctx = zmq_ctx
    g_pool.ipc_pub = ipc_pub
    g_pool.ipc_pub_url = ipc_pub_url
    g_pool.ipc_sub_url = ipc_sub_url
    g_pool.ipc_push_url = ipc_push_url
    g_pool.eyes_are_alive = eyes_are_alive

    def get_timestamp():
        return get_time_monotonic() - g_pool.timebase.value

    g_pool.get_timestamp = get_timestamp
    g_pool.get_now = get_time_monotonic

    #manage plugins
    runtime_plugins = import_runtime_plugins(
        os.path.join(g_pool.user_dir, 'plugins'))
    user_launchable_plugins = [
        Show_Calibration, Pupil_Remote, Pupil_Sync, Surface_Tracker,
        Annotation_Capture, Log_History
    ] + runtime_plugins
    system_plugins = [Log_Display, Display_Recent_Gaze, Recorder]
    plugin_by_index = system_plugins + user_launchable_plugins + calibration_plugins + gaze_mapping_plugins
    name_by_index = [p.__name__ for p in plugin_by_index]
    plugin_by_name = dict(zip(name_by_index, plugin_by_index))
    default_plugins = [('Log_Display', {}), ('Dummy_Gaze_Mapper', {}),
                       ('Display_Recent_Gaze', {}),
                       ('Screen_Marker_Calibration', {}), ('Recorder', {}),
                       ('Pupil_Remote', {})]

    # Callback functions
    def on_resize(window, w, h):
        if not g_pool.iconified:
            g_pool.gui.update_window(w, h)
            g_pool.gui.collect_menus()
            graph.adjust_size(w, h)
            adjust_gl_view(w, h)
            for p in g_pool.plugins:
                p.on_window_resize(window, w, h)

    def on_iconify(window, iconified):
        g_pool.iconified = iconified

    def on_key(window, key, scancode, action, mods):
        g_pool.gui.update_key(key, scancode, action, mods)

    def on_char(window, char):
        g_pool.gui.update_char(char)

    def on_button(window, button, action, mods):
        g_pool.gui.update_button(button, action, mods)
        pos = glfw.glfwGetCursorPos(window)
        pos = normalize(pos, glfw.glfwGetWindowSize(main_window))
        pos = denormalize(
            pos,
            (frame.img.shape[1], frame.img.shape[0]))  # Position in img pixels
        for p in g_pool.plugins:
            p.on_click(pos, button, action)

    def on_pos(window, x, y):
        hdpi_factor = float(
            glfw.glfwGetFramebufferSize(window)[0] /
            glfw.glfwGetWindowSize(window)[0])
        x, y = x * hdpi_factor, y * hdpi_factor
        g_pool.gui.update_mouse(x, y)

    def on_scroll(window, x, y):
        g_pool.gui.update_scroll(x, y * scroll_factor)

    tick = delta_t()

    def get_dt():
        return next(tick)

    # load session persistent settings
    session_settings = Persistent_Dict(
        os.path.join(g_pool.user_dir, 'user_settings_world'))
    if session_settings.get("version", VersionFormat('0.0')) < g_pool.version:
        logger.info(
            "Session setting are from older version of this app. I will not use those."
        )
        session_settings.clear()

    # Initialize capture
    cap = autoCreateCapture(cap_src, timebase=g_pool.timebase)
    default_settings = {'frame_size': (1280, 720), 'frame_rate': 30}
    previous_settings = session_settings.get('capture_settings', None)
    if previous_settings and previous_settings['name'] == cap.name:
        cap.settings = previous_settings
    else:
        cap.settings = default_settings

    g_pool.iconified = False
    g_pool.capture = cap
    g_pool.detection_mapping_mode = session_settings.get(
        'detection_mapping_mode', '2d')
    g_pool.active_calibration_plugin = None
    g_pool.active_gaze_mapping_plugin = None

    audio.audio_mode = session_settings.get('audio_mode',
                                            audio.default_audio_mode)

    def open_plugin(plugin):
        if plugin == "Select to load":
            return
        g_pool.plugins.add(plugin)

    def set_scale(new_scale):
        g_pool.gui.scale = new_scale
        g_pool.gui.collect_menus()

    def launch_eye_process(eye_id, delay=0):
        n = {
            'subject': 'eye_process.should_start.%s' % eye_id,
            'eye_id': eye_id,
            'delay': delay
        }
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {'subject': 'eye_process.should_stop', 'eye_id': eye_id}
        ipc_pub.notify(n)

    def start_stop_eye(eye_id, make_alive):
        if make_alive:
            launch_eye_process(eye_id)
        else:
            stop_eye_process(eye_id)

    def set_detection_mapping_mode(new_mode):
        n = {'subject': 'set_detection_mapping_mode', 'mode': new_mode}
        ipc_pub.notify(n)

    def handle_notifications(n):
        subject = n['subject']
        if subject == 'set_detection_mapping_mode':
            if n['mode'] == '2d':
                if "Vector_Gaze_Mapper" in g_pool.active_gaze_mapping_plugin.class_name:
                    logger.warning(
                        "The gaze mapper is not supported in 2d mode. Please recalibrate."
                    )
                    g_pool.plugins.add(plugin_by_name['Dummy_Gaze_Mapper'])
            g_pool.detection_mapping_mode = n['mode']
        elif subject == 'start_plugin':
            g_pool.plugins.add(plugin_by_name[n['name']],
                               args=n.get('args', {}))
        elif subject == 'eye_process.started':
            n = {
                'subject': 'set_detection_mapping_mode',
                'mode': g_pool.detection_mapping_mode
            }
            ipc_pub.notify(n)
        elif subject.startswith('meta.should_doc'):
            ipc_pub.notify({
                'subject': 'meta.doc',
                'actor': g_pool.app,
                'doc': world.__doc__
            })
            for p in g_pool.plugins:
                if p.on_notify.__doc__ and p.__class__.on_notify != Plugin.on_notify:
                    ipc_pub.notify({
                        'subject': 'meta.doc',
                        'actor': p.class_name,
                        'doc': p.on_notify.__doc__
                    })

    #window and gl setup
    glfw.glfwInit()
    width, height = session_settings.get('window_size', cap.frame_size)
    main_window = glfw.glfwCreateWindow(width, height, "World")
    window_pos = session_settings.get('window_position',
                                      window_position_default)
    glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
    glfw.glfwMakeContextCurrent(main_window)
    cygl.utils.init()
    g_pool.main_window = main_window

    #setup GUI
    g_pool.gui = ui.UI()
    g_pool.gui.scale = session_settings.get('gui_scale', 1)
    g_pool.sidebar = ui.Scrolling_Menu("Settings",
                                       pos=(-350, 0),
                                       size=(0, 0),
                                       header_pos='left')
    general_settings = ui.Growing_Menu('General')
    general_settings.append(
        ui.Slider('scale',
                  g_pool.gui,
                  setter=set_scale,
                  step=.05,
                  min=1.,
                  max=2.5,
                  label='Interface size'))
    general_settings.append(
        ui.Button(
            'Reset window size', lambda: glfw.glfwSetWindowSize(
                main_window, frame.width, frame.height)))
    general_settings.append(
        ui.Selector('audio_mode', audio, selection=audio.audio_modes))
    general_settings.append(
        ui.Selector('detection_mapping_mode',
                    g_pool,
                    label='detection & mapping mode',
                    setter=set_detection_mapping_mode,
                    selection=['2d', '3d']))
    general_settings.append(
        ui.Switch('eye0_process',
                  label='Detect eye 0',
                  setter=lambda alive: start_stop_eye(0, alive),
                  getter=lambda: eyes_are_alive[0].value))
    general_settings.append(
        ui.Switch('eye1_process',
                  label='Detect eye 1',
                  setter=lambda alive: start_stop_eye(1, alive),
                  getter=lambda: eyes_are_alive[1].value))
    general_settings.append(
        ui.Selector('Open plugin',
                    selection=user_launchable_plugins,
                    labels=[
                        p.__name__.replace('_', ' ')
                        for p in user_launchable_plugins
                    ],
                    setter=open_plugin,
                    getter=lambda: "Select to load"))
    general_settings.append(
        ui.Info_Text('Capture Version: %s' % g_pool.version))
    g_pool.sidebar.append(general_settings)

    g_pool.calibration_menu = ui.Growing_Menu('Calibration')
    g_pool.sidebar.append(g_pool.calibration_menu)
    g_pool.gui.append(g_pool.sidebar)
    g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100), (120, -100))
    g_pool.gui.append(g_pool.quickbar)
    g_pool.capture.init_gui(g_pool.sidebar)

    #plugins that are loaded based on user settings from previous session
    g_pool.plugins = Plugin_List(
        g_pool, plugin_by_name,
        session_settings.get('loaded_plugins', default_plugins))

    #We add the calibration menu selector, after a calibration has been added:
    g_pool.calibration_menu.insert(
        0,
        ui.Selector(
            'active_calibration_plugin',
            getter=lambda: g_pool.active_calibration_plugin.__class__,
            selection=calibration_plugins,
            labels=[p.__name__.replace('_', ' ') for p in calibration_plugins],
            setter=open_plugin,
            label='Method'))

    # Register callbacks main_window
    glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
    glfw.glfwSetWindowIconifyCallback(main_window, on_iconify)
    glfw.glfwSetKeyCallback(main_window, on_key)
    glfw.glfwSetCharCallback(main_window, on_char)
    glfw.glfwSetMouseButtonCallback(main_window, on_button)
    glfw.glfwSetCursorPosCallback(main_window, on_pos)
    glfw.glfwSetScrollCallback(main_window, on_scroll)

    # gl_state settings
    basic_gl_setup()
    g_pool.image_tex = Named_Texture()
    # refresh speed settings
    glfw.glfwSwapInterval(0)

    #trigger setup of window and gl sizes
    on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

    #now the we have  aproper window we can load the last gui configuration
    g_pool.gui.configuration = session_settings.get('ui_config', {})

    #set up performace graphs:
    pid = os.getpid()
    ps = psutil.Process(pid)
    ts = cap.get_timestamp()

    cpu_graph = graph.Bar_Graph()
    cpu_graph.pos = (20, 130)
    cpu_graph.update_fn = ps.cpu_percent
    cpu_graph.update_rate = 5
    cpu_graph.label = 'CPU %0.1f'

    fps_graph = graph.Bar_Graph()
    fps_graph.pos = (140, 130)
    fps_graph.update_rate = 5
    fps_graph.label = "%0.0f FPS"

    pupil0_graph = graph.Bar_Graph(max_val=1.0)
    pupil0_graph.pos = (260, 130)
    pupil0_graph.update_rate = 5
    pupil0_graph.label = "id0 conf: %0.2f"
    pupil1_graph = graph.Bar_Graph(max_val=1.0)
    pupil1_graph.pos = (380, 130)
    pupil1_graph.update_rate = 5
    pupil1_graph.label = "id1 conf: %0.2f"
    pupil_graphs = pupil0_graph, pupil1_graph

    if session_settings.get('eye1_process_alive', False):
        launch_eye_process(1, delay=0.6)
    if session_settings.get('eye0_process_alive', True):
        launch_eye_process(0, delay=0.3)

    ipc_pub.notify({'subject': 'world_process.started'})
    logger.warning('Process started.')

    # Event loop
    while not glfw.glfwWindowShouldClose(main_window):
        # Get an image from the grabber
        try:
            frame = g_pool.capture.get_frame()
        except CameraCaptureError:
            logger.error("Capture from camera failed. Starting Fake Capture.")
            settings = g_pool.capture.settings
            g_pool.capture.close()
            g_pool.capture = autoCreateCapture(None, timebase=g_pool.timebase)
            g_pool.capture.init_gui(g_pool.sidebar)
            g_pool.capture.settings = settings
            ipc_pub.notify({'subject': 'recording.should_stop'})
            continue
        except EndofVideoFileError:
            logger.warning("Video file is done. Stopping")
            break

        #update performace graphs
        t = frame.timestamp
        dt, ts = t - ts, t
        try:
            fps_graph.add(1. / dt)
        except ZeroDivisionError:
            pass
        cpu_graph.update()

        #a dictionary that allows plugins to post and read events
        events = {}
        #report time between now and the last loop interation
        events['dt'] = get_dt()

        recent_pupil_data = []
        recent_gaze_data = []
        new_notifications = []

        while pupil_sub.new_data:
            t, p = pupil_sub.recv()
            pupil_graphs[p['id']].add(p['confidence'])
            recent_pupil_data.append(p)
            new_gaze_data = g_pool.active_gaze_mapping_plugin.on_pupil_datum(p)
            for g in new_gaze_data:
                gaze_pub.send('gaze', g)
            recent_gaze_data += new_gaze_data
        while notify_sub.new_data:
            t, n = notify_sub.recv()
            new_notifications.append(n)

        events['pupil_positions'] = recent_pupil_data
        events['gaze_positions'] = recent_gaze_data

        # notify each plugin if there are new notifications:
        for n in new_notifications:
            handle_notifications(n)
            for p in g_pool.plugins:
                p.on_notify(n)

        # allow each Plugin to do its work.
        for p in g_pool.plugins:
            p.update(frame, events)

        #check if a plugin need to be destroyed
        g_pool.plugins.clean()

        #send new events to ipc:
        del events['pupil_positions']  #already on the wire
        del events['gaze_positions']  #send earlier in this loop
        del events['dt']  #no need to send this
        for topic, data in events.iteritems():
            for d in data:
                ipc_pub.send(topic, d)

        # render camera image
        glfw.glfwMakeContextCurrent(main_window)
        if g_pool.iconified:
            pass
        else:
            g_pool.image_tex.update_from_frame(frame)
            glFlush()
        make_coord_system_norm_based()
        g_pool.image_tex.draw()
        make_coord_system_pixel_based((frame.height, frame.width, 3))
        # render visual feedback from loaded plugins
        for p in g_pool.plugins:
            p.gl_display()

        if not g_pool.iconified:
            graph.push_view()
            fps_graph.draw()
            cpu_graph.draw()
            pupil0_graph.draw()
            pupil1_graph.draw()
            graph.pop_view()
            g_pool.gui.update()
            glfw.glfwSwapBuffers(main_window)
        glfw.glfwPollEvents()

    glfw.glfwRestoreWindow(main_window)  #need to do this for windows os
    session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
    session_settings['gui_scale'] = g_pool.gui.scale
    session_settings['ui_config'] = g_pool.gui.configuration
    session_settings['capture_settings'] = g_pool.capture.settings
    session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
    session_settings['window_position'] = glfw.glfwGetWindowPos(main_window)
    session_settings['version'] = g_pool.version
    session_settings['eye0_process_alive'] = eyes_are_alive[0].value
    session_settings['eye1_process_alive'] = eyes_are_alive[1].value
    session_settings['detection_mapping_mode'] = g_pool.detection_mapping_mode
    session_settings['audio_mode'] = audio.audio_mode
    session_settings.close()

    # de-init all running plugins
    for p in g_pool.plugins:
        p.alive = False
    g_pool.plugins.clean()
    g_pool.gui.terminate()
    glfw.glfwDestroyWindow(main_window)
    glfw.glfwTerminate()
    g_pool.capture.close()

    #shut down eye processes:
    stop_eye_process(0)
    stop_eye_process(1)

    logger.info("Process shutting down.")
    ipc_pub.notify({'subject': 'world_process.stopped'})

    #shut down launcher
    n = {'subject': 'launcher_process.should_stop'}
    ipc_pub.notify(n)
    zmq_ctx.destroy()
    def thread_loop(self, context, pipe):
        """Background Relay Thread

        1. Connects to the ZMQ backbone
        2. Creates LSL outlets according to settings
        3. Subscibes to according topics
        4. Loop
        4.1. Relay data
        4.2. Handle un/subscription events
        4.3. Handle exit event
        5. Shutdown background thread
        """
        try:
            logger.debug('Connecting to %s...' % self.g_pool.ipc_sub_url)
            inlet = zmq_tools.Msg_Receiver(context,
                                           self.g_pool.ipc_sub_url,
                                           block_until_connected=False)
            poller = zmq.Poller()
            poller.register(pipe, flags=zmq.POLLIN)
            poller.register(inlet.socket, flags=zmq.POLLIN)

            pupil_outlets = None
            gaze_outlets = None
            notification_outlet = None

            # initial subscription
            if self.relay_pupil:
                pupil_outlets = self._create_pupil_lsl_outlets()
                inlet.subscribe(PUPIL_SUB_TOPIC)
            if self.relay_gaze:
                gaze_outlets = self._create_gaze_lsl_outlets()
                inlet.subscribe(GAZE_SUB_TOPIC)
            if self.relay_notifications:
                notification_outlet = self._create_notify_lsl_outlet()
                inlet.subscribe(NOTIFY_SUB_TOPIC)

            while True:
                items = dict(poller.poll())

                if inlet.socket in items:
                    topic, payload = inlet.recv()
                    if (topic.startswith(PUPIL_SUB_TOPIC) and pupil_outlets):
                        eyeid = payload['id']
                        # push primitive sample
                        outlet = pupil_outlets[eyeid * 2]
                        sample = self._generate_primitive_sample(payload)
                        outlet.push_sample(sample)
                        # push python sample
                        outlet = pupil_outlets[eyeid * 2 + 1]
                        outlet.push_sample((repr(payload), ))
                        del outlet  # delete reference

                    elif (topic.startswith(GAZE_SUB_TOPIC) and gaze_outlets):
                        # push primitive sample
                        outlet = gaze_outlets[0]
                        sample = self._generate_primitive_sample(payload)
                        outlet.push_sample(sample)
                        # push python sample
                        outlet = gaze_outlets[1]
                        outlet.push_sample((repr(payload), ))
                        del outlet  # delete reference

                    elif (topic.startswith(NOTIFY_SUB_TOPIC)
                          and notification_outlet):
                        sample = (payload['subject'], repr(payload))
                        notification_outlet.push_sample(sample)

                    else:
                        logger.debug('Did not handle topic "%s"' % topic)

                if pipe in items:
                    cmd = pipe.recv_string()
                    if cmd == 'Exit':
                        break

                    elif cmd == 'Subscribe':
                        topic = pipe.recv_string()
                        inlet.subscribe(topic)
                        if topic == PUPIL_SUB_TOPIC and not pupil_outlets:
                            pupil_outlets = self._create_pupil_lsl_outlets()
                        elif topic == GAZE_SUB_TOPIC and not gaze_outlets:
                            gaze_outlets = self._create_gaze_lsl_outlets()
                        elif (topic == NOTIFY_SUB_TOPIC
                              and not notification_outlet):
                            notification_outlet = self._create_notify_lsl_outlet(
                            )
                        logger.debug('Subscribed to "%s"' % topic)

                    elif cmd == 'Unsubscribe':
                        topic = pipe.recv_string()
                        inlet.unsubscribe(topic)
                        if topic == PUPIL_SUB_TOPIC and pupil_outlets:
                            pupil_outlets = None
                        elif topic == GAZE_SUB_TOPIC and gaze_outlets:
                            gaze_outlets = None
                        elif topic == NOTIFY_SUB_TOPIC and notification_outlet:
                            notification_outlet = None
                        logger.debug('Unubscribed from "%s"' % topic)

        except Exception as e:
            logger.error('Error during relaying data to LSL. ' +
                         'Unloading the plugin...')
            logger.debug('Error details: %s' % e)
        finally:
            logger.debug('Shutting down background thread...')
            self.thread_pipe = None
            self.alive = False
Ejemplo n.º 19
0
def player(rec_dir, ipc_pub_url, ipc_sub_url, ipc_push_url, user_dir,
           app_version, debug):
    # general imports
    from time import sleep
    import logging
    from glob import glob
    from time import time, strftime, localtime

    # networking
    import zmq
    import zmq_tools

    import numpy as np

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=("notify", ))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    try:
        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        from tasklib.background.patches import IPCLoggingPatch

        IPCLoggingPatch.ipc_push_url = ipc_push_url

        # imports
        from file_methods import Persistent_Dict, next_export_sub_dir

        # display
        import glfw

        # check versions for our own depedencies as they are fast-changing
        from pyglui import __version__ as pyglui_version

        from pyglui import ui, cygl
        from pyglui.cygl.utils import Named_Texture, RGBA
        import gl_utils

        # capture
        from video_capture import File_Source

        # helpers/utils
        from version_utils import VersionFormat
        from methods import normalize, denormalize, delta_t, get_system_info
        import player_methods as pm
        from pupil_recording import PupilRecording
        from csv_utils import write_key_value_file

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from plugin_manager import Plugin_Manager
        from vis_circle import Vis_Circle
        from vis_cross import Vis_Cross
        from vis_polyline import Vis_Polyline
        from vis_light_points import Vis_Light_Points
        from vis_watermark import Vis_Watermark
        from vis_fixation import Vis_Fixation

        from seek_control import Seek_Control
        from surface_tracker import Surface_Tracker_Offline

        # from marker_auto_trim_marks import Marker_Auto_Trim_Marks
        from fixation_detector import Offline_Fixation_Detector
        from log_display import Log_Display
        from annotations import Annotation_Player
        from raw_data_exporter import Raw_Data_Exporter
        from log_history import Log_History
        from pupil_producers import Pupil_From_Recording, Offline_Pupil_Detection
        from gaze_producer.gaze_from_recording import GazeFromRecording
        from gaze_producer.gaze_from_offline_calibration import (
            GazeFromOfflineCalibration, )
        from system_graphs import System_Graphs
        from system_timelines import System_Timelines
        from blink_detection import Offline_Blink_Detection
        from audio_playback import Audio_Playback
        from video_export.plugins.imotions_exporter import iMotions_Exporter
        from video_export.plugins.eye_video_exporter import Eye_Video_Exporter
        from video_export.plugins.world_video_exporter import World_Video_Exporter
        from head_pose_tracker.offline_head_pose_tracker import (
            Offline_Head_Pose_Tracker, )
        from video_capture import File_Source
        from video_overlay.plugins import Video_Overlay, Eye_Overlay

        from pupil_recording import (
            assert_valid_recording_type,
            InvalidRecordingException,
        )

        assert VersionFormat(pyglui_version) >= VersionFormat(
            "1.28"), "pyglui out of date, please upgrade to newest version"

        process_was_interrupted = False

        def interrupt_handler(sig, frame):
            import traceback

            trace = traceback.format_stack(f=frame)
            logger.debug(f"Caught signal {sig} in:\n" + "".join(trace))
            nonlocal process_was_interrupted
            process_was_interrupted = True

        signal.signal(signal.SIGINT, interrupt_handler)

        runtime_plugins = import_runtime_plugins(
            os.path.join(user_dir, "plugins"))
        system_plugins = [
            Log_Display,
            Seek_Control,
            Plugin_Manager,
            System_Graphs,
            System_Timelines,
            Audio_Playback,
        ]
        user_plugins = [
            Vis_Circle,
            Vis_Fixation,
            Vis_Polyline,
            Vis_Light_Points,
            Vis_Cross,
            Vis_Watermark,
            Eye_Overlay,
            Video_Overlay,
            Offline_Fixation_Detector,
            Offline_Blink_Detection,
            Surface_Tracker_Offline,
            Raw_Data_Exporter,
            Annotation_Player,
            Log_History,
            Pupil_From_Recording,
            Offline_Pupil_Detection,
            GazeFromRecording,
            GazeFromOfflineCalibration,
            World_Video_Exporter,
            iMotions_Exporter,
            Eye_Video_Exporter,
            Offline_Head_Pose_Tracker,
        ] + runtime_plugins

        plugins = system_plugins + user_plugins

        def consume_events_and_render_buffer():
            gl_utils.glViewport(0, 0, *g_pool.camera_render_size)
            g_pool.capture.gl_display()
            for p in g_pool.plugins:
                p.gl_display()

            gl_utils.glViewport(0, 0, *window_size)

            try:
                clipboard = glfw.glfwGetClipboardString(main_window).decode()
            except AttributeError:  # clipbaord is None, might happen on startup
                clipboard = ""
            g_pool.gui.update_clipboard(clipboard)
            user_input = g_pool.gui.update()
            if user_input.clipboard and user_input.clipboard != clipboard:
                # only write to clipboard if content changed
                glfw.glfwSetClipboardString(main_window,
                                            user_input.clipboard.encode())

            for b in user_input.buttons:
                button, action, mods = b
                x, y = glfw.glfwGetCursorPos(main_window)
                pos = glfw.window_coordinate_to_framebuffer_coordinate(
                    main_window, x, y, cached_scale=None)
                pos = normalize(pos, g_pool.camera_render_size)
                pos = denormalize(pos, g_pool.capture.frame_size)

                for plugin in g_pool.plugins:
                    if plugin.on_click(pos, button, action):
                        break

            for key, scancode, action, mods in user_input.keys:
                for plugin in g_pool.plugins:
                    if plugin.on_key(key, scancode, action, mods):
                        break

            for char_ in user_input.chars:
                for plugin in g_pool.plugins:
                    if plugin.on_char(char_):
                        break

            glfw.glfwSwapBuffers(main_window)

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal content_scale
            if w == 0 or h == 0:
                return

            # Always clear buffers on resize to make sure that there are no overlapping
            # artifacts from previous frames.
            gl_utils.glClear(gl_utils.GL_COLOR_BUFFER_BIT)
            gl_utils.glClearColor(0, 0, 0, 1)

            content_scale = glfw.get_content_scale(window)
            framebuffer_scale = glfw.get_framebuffer_scale(window)
            g_pool.gui.scale = content_scale
            window_size = w, h
            g_pool.camera_render_size = w - int(
                icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()
            for p in g_pool.plugins:
                p.on_window_resize(window, *g_pool.camera_render_size)

            # Minimum window size required, otherwise parts of the UI can cause openGL
            # issues with permanent effects. Depends on the content scale, which can
            # potentially be dynamically modified, so we re-adjust the size limits every
            # time here.
            min_size = int(2 * icon_bar_width * g_pool.gui.scale /
                           framebuffer_scale)
            glfw.glfwSetWindowSizeLimits(window, min_size, min_size,
                                         glfw.GLFW_DONT_CARE,
                                         glfw.GLFW_DONT_CARE)

            # Needed, to update the window buffer while resizing
            consume_events_and_render_buffer()

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = glfw.window_coordinate_to_framebuffer_coordinate(
                window, x, y, cached_scale=None)
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, g_pool.camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            paths = [paths[x].decode("utf-8") for x in range(count)]
            for path in paths:
                try:
                    assert_valid_recording_type(path)
                    _restart_with_recording(path)
                    return
                except InvalidRecordingException as err:
                    logger.debug(str(err))

            for plugin in g_pool.plugins:
                if plugin.on_drop(paths):
                    break

        def _restart_with_recording(rec_dir):
            logger.debug("Starting new session with '{}'".format(rec_dir))
            ipc_pub.notify({
                "subject": "player_drop_process.should_start",
                "rec_dir": rec_dir
            })
            glfw.glfwSetWindowShouldClose(g_pool.main_window, True)

        tick = delta_t()

        def get_dt():
            return next(tick)

        recording = PupilRecording(rec_dir)
        meta_info = recording.meta_info

        # log info about Pupil Platform and Platform in player.log
        logger.info("Application Version: {}".format(app_version))
        logger.info("System Info: {}".format(get_system_info()))
        logger.debug(f"Debug flag: {debug}")

        icon_bar_width = 50
        window_size = None
        content_scale = 1.0

        # create container for globally scoped vars
        g_pool = SimpleNamespace()
        g_pool.app = "player"
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}
        g_pool.camera_render_size = None

        video_path = recording.files().core().world().videos()[0].resolve()
        File_Source(
            g_pool,
            timing="external",
            source_path=video_path,
            buffered_decoding=True,
            fill_gaps=True,
        )

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(user_dir, "user_settings_player"))
        if VersionFormat(session_settings.get("version",
                                              "0.0")) != app_version:
            logger.info(
                "Session setting are a different version of this app. I will not use those."
            )
            session_settings.clear()

        width, height = g_pool.capture.frame_size
        width += icon_bar_width
        width, height = session_settings.get("window_size", (width, height))

        window_pos = session_settings.get("window_position",
                                          window_position_default)
        window_name = f"Pupil Player: {meta_info.recording_name} - {rec_dir}"

        glfw.glfwInit()
        glfw.glfwWindowHint(glfw.GLFW_SCALE_TO_MONITOR, glfw.GLFW_TRUE)
        main_window = glfw.glfwCreateWindow(width, height, window_name, None,
                                            None)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        g_pool.version = app_version
        g_pool.timestamps = g_pool.capture.timestamps
        g_pool.get_timestamp = lambda: 0.0
        g_pool.user_dir = user_dir
        g_pool.rec_dir = rec_dir
        g_pool.meta_info = meta_info
        g_pool.min_data_confidence = session_settings.get(
            "min_data_confidence", MIN_DATA_CONFIDENCE_DEFAULT)
        g_pool.min_calibration_confidence = session_settings.get(
            "min_calibration_confidence", MIN_CALIBRATION_CONFIDENCE_DEFAULT)

        # populated by producers
        g_pool.pupil_positions = pm.PupilDataBisector()
        g_pool.gaze_positions = pm.Bisector()
        g_pool.fixations = pm.Affiliator()
        g_pool.eye_movements = pm.Affiliator()

        def set_data_confidence(new_confidence):
            g_pool.min_data_confidence = new_confidence
            notification = {"subject": "min_data_confidence_changed"}
            notification["_notify_time_"] = time() + 0.8
            g_pool.ipc_pub.notify(notification)

        def do_export(_):
            left_idx = g_pool.seek_control.trim_left
            right_idx = g_pool.seek_control.trim_right
            export_range = left_idx, right_idx + 1  # exclusive range.stop
            export_ts_window = pm.exact_window(g_pool.timestamps,
                                               (left_idx, right_idx))

            export_dir = os.path.join(g_pool.rec_dir, "exports")
            export_dir = next_export_sub_dir(export_dir)

            os.makedirs(export_dir)
            logger.info('Created export dir at "{}"'.format(export_dir))

            export_info = {
                "Player Software Version":
                str(g_pool.version),
                "Data Format Version":
                meta_info.min_player_version,
                "Export Date":
                strftime("%d.%m.%Y", localtime()),
                "Export Time":
                strftime("%H:%M:%S", localtime()),
                "Frame Index Range:":
                g_pool.seek_control.get_frame_index_trim_range_string(),
                "Relative Time Range":
                g_pool.seek_control.get_rel_time_trim_range_string(),
                "Absolute Time Range":
                g_pool.seek_control.get_abs_time_trim_range_string(),
            }
            with open(os.path.join(export_dir, "export_info.csv"), "w") as csv:
                write_key_value_file(csv, export_info)

            notification = {
                "subject": "should_export",
                "range": export_range,
                "ts_window": export_ts_window,
                "export_dir": export_dir,
            }
            g_pool.ipc_pub.notify(notification)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Player.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({"subject": "clear_settings_process.should_start"})
            ipc_pub.notify({
                "subject": "player_process.should_start",
                "rec_dir": rec_dir,
                "delay": 2.0,
            })

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        g_pool.gui = ui.UI()
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-500, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos="left")
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos="hidden")
        g_pool.timelines = ui.Container((0, 0), (0, 0), (0, 0))
        g_pool.timelines.horizontal_constraint = g_pool.menubar
        g_pool.user_timelines = ui.Timeline_Menu("User Timelines",
                                                 pos=(0.0, -150.0),
                                                 size=(0.0, 0.0),
                                                 header_pos="headline")
        g_pool.user_timelines.color = RGBA(a=0.0)
        g_pool.user_timelines.collapsed = True
        # add container that constaints itself to the seekbar height
        vert_constr = ui.Container((0, 0), (0, -50.0), (0, 0))
        vert_constr.append(g_pool.user_timelines)
        g_pool.timelines.append(vert_constr)

        def set_window_size():
            # Get current capture frame size
            f_width, f_height = g_pool.capture.frame_size

            # Get current display scale factor
            content_scale = glfw.get_content_scale(main_window)
            framebuffer_scale = glfw.get_framebuffer_scale(main_window)
            display_scale_factor = content_scale / framebuffer_scale

            # Scale the capture frame size by display scale factor
            f_width *= display_scale_factor
            f_height *= display_scale_factor

            # Increas the width to account for the added scaled icon bar width
            f_width += icon_bar_width * display_scale_factor

            # Set the newly calculated size (scaled capture frame size + scaled icon bar width)
            glfw.glfwSetWindowSize(main_window, int(f_width), int(f_height))

        general_settings = ui.Growing_Menu("General", header_pos="headline")
        general_settings.append(ui.Button("Reset window size",
                                          set_window_size))
        general_settings.append(
            ui.Info_Text(
                f"Minimum Player Version: {meta_info.min_player_version}"))
        general_settings.append(
            ui.Info_Text(f"Player Version: {g_pool.version}"))
        general_settings.append(
            ui.Info_Text(
                f"Recording Software: {meta_info.recording_software_name}"))
        general_settings.append(
            ui.Info_Text(
                f"Recording Software Version: {meta_info.recording_software_version}"
            ))

        general_settings.append(
            ui.Info_Text(
                "High level data, e.g. fixations, or visualizations only consider gaze data that has an equal or higher confidence than the minimum data confidence."
            ))
        general_settings.append(
            ui.Slider(
                "min_data_confidence",
                g_pool,
                setter=set_data_confidence,
                step=0.05,
                min=0.0,
                max=1.0,
                label="Minimum data confidence",
            ))

        general_settings.append(
            ui.Button("Restart with default settings", reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        g_pool.quickbar = ui.Stretching_Menu("Quick Bar", (0, 100),
                                             (100, -100))
        g_pool.export_button = ui.Thumb(
            "export",
            label=chr(0xE2C5),
            getter=lambda: False,
            setter=do_export,
            hotkey="e",
            label_font="pupil_icons",
        )
        g_pool.quickbar.extend([g_pool.export_button])
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.timelines)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        # we always load these plugins
        default_plugins = [
            ("Plugin_Manager", {}),
            ("Seek_Control", {}),
            ("Log_Display", {}),
            ("Raw_Data_Exporter", {}),
            ("Vis_Polyline", {}),
            ("Vis_Circle", {}),
            ("System_Graphs", {}),
            ("System_Timelines", {}),
            ("World_Video_Exporter", {}),
            ("Pupil_From_Recording", {}),
            ("GazeFromRecording", {}),
            ("Audio_Playback", {}),
        ]

        g_pool.plugins = Plugin_List(
            g_pool, session_settings.get("loaded_plugins", default_plugins))

        # Manually add g_pool.capture to the plugin list
        g_pool.plugins._plugins.append(g_pool.capture)
        g_pool.plugins._plugins.sort(key=lambda p: p.order)
        g_pool.capture.init_ui()

        general_settings.insert(
            -1,
            ui.Text_Input(
                "rel_time_trim_section",
                getter=g_pool.seek_control.get_rel_time_trim_range_string,
                setter=g_pool.seek_control.set_rel_time_trim_range_string,
                label="Relative time range to export",
            ),
        )
        general_settings.insert(
            -1,
            ui.Text_Input(
                "frame_idx_trim_section",
                getter=g_pool.seek_control.get_frame_index_trim_range_string,
                setter=g_pool.seek_control.set_frame_index_trim_range_string,
                label="Frame index range to export",
            ),
        )

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        toggle_general_settings(True)

        g_pool.gui.configuration = session_settings.get("ui_config", {})
        # If previously selected plugin was not loaded this time, we will have an
        # expanded menubar without any menu selected. We need to ensure the menubar is
        # collapsed in this case.
        if all(submenu.collapsed for submenu in g_pool.menubar.elements):
            g_pool.menubar.collapsed = True

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        # trigger on_resize
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        def handle_notifications(n):
            subject = n["subject"]
            if subject == "start_plugin":
                g_pool.plugins.add(g_pool.plugin_by_name[n["name"]],
                                   args=n.get("args", {}))
            elif subject.startswith("meta.should_doc"):
                ipc_pub.notify({
                    "subject": "meta.doc",
                    "actor": g_pool.app,
                    "doc": player.__doc__
                })
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({
                            "subject": "meta.doc",
                            "actor": p.class_name,
                            "doc": p.on_notify.__doc__,
                        })

        while (not glfw.glfwWindowShouldClose(main_window)
               and not process_was_interrupted):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            events = {}
            # report time between now and the last loop interation
            events["dt"] = get_dt()

            # pupil and gaze positions are added by their respective producer plugins
            events["pupil"] = []
            events["gaze"] = []

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            glfw.glfwMakeContextCurrent(main_window)
            glfw.glfwPollEvents()
            # render visual feedback from loaded plugins
            if gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *g_pool.camera_render_size)
                g_pool.capture.gl_display()
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)

                try:
                    clipboard = glfw.glfwGetClipboardString(
                        main_window).decode()
                except AttributeError:  # clipbaord is None, might happen on startup
                    clipboard = ""
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard and user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.glfwSetClipboardString(main_window,
                                                user_input.clipboard.encode())

                for b in user_input.buttons:
                    button, action, mods = b
                    x, y = glfw.glfwGetCursorPos(main_window)
                    pos = glfw.window_coordinate_to_framebuffer_coordinate(
                        main_window, x, y, cached_scale=None)
                    pos = normalize(pos, g_pool.camera_render_size)
                    pos = denormalize(pos, g_pool.capture.frame_size)

                    for plugin in g_pool.plugins:
                        if plugin.on_click(pos, button, action):
                            break

                for key, scancode, action, mods in user_input.keys:
                    for plugin in g_pool.plugins:
                        if plugin.on_key(key, scancode, action, mods):
                            break

                for char_ in user_input.chars:
                    for plugin in g_pool.plugins:
                        if plugin.on_char(char_):
                            break

                # present frames at appropriate speed
                g_pool.seek_control.wait(events["frame"].timestamp)
                glfw.glfwSwapBuffers(main_window)

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        session_settings["min_data_confidence"] = g_pool.min_data_confidence
        session_settings[
            "min_calibration_confidence"] = g_pool.min_calibration_confidence
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["window_position"] = glfw.glfwGetWindowPos(
            main_window)
        session_settings["version"] = str(g_pool.version)

        session_window_size = glfw.glfwGetWindowSize(main_window)
        if 0 not in session_window_size:
            f_width, f_height = session_window_size
            if platform.system() in ("Windows", "Linux"):
                f_width, f_height = (
                    f_width / content_scale,
                    f_height / content_scale,
                )
            session_settings["window_size"] = int(f_width), int(f_height)

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)

    except Exception:
        import traceback

        trace = traceback.format_exc()
        logger.error("Process Player crashed with trace:\n{}".format(trace))
    finally:
        logger.info("Process shutting down.")
        ipc_pub.notify({"subject": "player_process.stopped"})
        sleep(1.0)
Ejemplo n.º 20
0
def launcher():
    """Starts eye processes. Hosts the IPC Backbone and Logging functions.

    Reacts to notifications:
       ``launcher_process.should_stop``: Stops the launcher process
       ``eye_process.should_start``: Starts the eye process
    """

    #Reliable msg dispatch to the IPC via push bridge.
    def pull_pub(ipc_pub_url, pull):
        ctx = zmq.Context.instance()
        pub = ctx.socket(zmq.PUB)
        pub.connect(ipc_pub_url)

        while True:
            m = pull.recv_multipart()
            pub.send_multipart(m)

    #The delay proxy handles delayed notififications.
    def delay_proxy(ipc_pub_url, ipc_sub_url):
        ctx = zmq.Context.instance()
        sub = zmq_tools.Msg_Receiver(ctx, ipc_sub_url, ('delayed_notify', ))
        pub = zmq_tools.Msg_Dispatcher(ctx, ipc_pub_url)
        poller = zmq.Poller()
        poller.register(sub.socket, zmq.POLLIN)
        waiting_notifications = {}

        while True:
            if poller.poll(timeout=250):
                #Recv new delayed notification and store it.
                topic, n = sub.recv()
                n['_notify_time_'] = time() + n['delay']
                waiting_notifications[n['subject']] = n
            #When a notifications time has come, pop from dict and send it as notification
            for s, n in list(waiting_notifications.items()):
                if n['_notify_time_'] < time():
                    del n['_notify_time_']
                    del n['delay']
                    del waiting_notifications[s]
                    pub.notify(n)

    #Recv log records from other processes.
    def log_loop(ipc_sub_url, log_level_debug):
        import logging
        #Get the root logger
        logger = logging.getLogger()
        #set log level
        if log_level_debug:
            logger.setLevel(logging.DEBUG)
        else:
            logger.setLevel(logging.INFO)
        #Stream to file
        fh = logging.FileHandler(os.path.join(user_dir, '{}.log'.format(app)),
                                 mode='w')
        fh.setFormatter(
            logging.Formatter(
                '%(asctime)s - %(processName)s - [%(levelname)s] %(name)s: %(message)s'
            ))
        logger.addHandler(fh)
        #Stream to console.
        ch = logging.StreamHandler()
        ch.setFormatter(
            logging.Formatter(
                '%(processName)s - [%(levelname)s] %(name)s: %(message)s'))
        logger.addHandler(ch)
        # IPC setup to receive log messages. Use zmq_tools.ZMQ_handler to send messages to here.
        sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                     ipc_sub_url,
                                     topics=("logging", ))
        while True:
            topic, msg = sub.recv()
            record = logging.makeLogRecord(msg)
            logger.handle(record)

    ## IPC
    timebase = Value(c_double, 0)
    eyes_are_alive = Value(c_bool, 0), Value(c_bool, 0)

    zmq_ctx = zmq.Context()

    #Let the OS choose the IP and PORT
    ipc_pub_url = 'tcp://*:*'
    ipc_sub_url = 'tcp://*:*'
    ipc_push_url = 'tcp://*:*'

    # Binding IPC Backbone Sockets to URLs.
    # They are used in the threads started below.
    # Using them in the main thread is not allowed.
    xsub_socket = zmq_ctx.socket(zmq.XSUB)
    xsub_socket.bind(ipc_pub_url)
    ipc_pub_url = xsub_socket.last_endpoint.decode('utf8').replace(
        "0.0.0.0", "127.0.0.1")

    xpub_socket = zmq_ctx.socket(zmq.XPUB)
    xpub_socket.bind(ipc_sub_url)
    ipc_sub_url = xpub_socket.last_endpoint.decode('utf8').replace(
        "0.0.0.0", "127.0.0.1")

    pull_socket = zmq_ctx.socket(zmq.PULL)
    pull_socket.bind(ipc_push_url)
    ipc_push_url = pull_socket.last_endpoint.decode('utf8').replace(
        "0.0.0.0", "127.0.0.1")

    # Starting communication threads:
    # A ZMQ Proxy Device serves as our IPC Backbone
    ipc_backbone_thread = Thread(target=zmq.proxy,
                                 args=(xsub_socket, xpub_socket))
    ipc_backbone_thread.setDaemon(True)
    ipc_backbone_thread.start()

    pull_pub = Thread(target=pull_pub, args=(ipc_pub_url, pull_socket))
    pull_pub.setDaemon(True)
    pull_pub.start()

    log_thread = Thread(target=log_loop,
                        args=(ipc_sub_url, 'debug' in sys.argv))
    log_thread.setDaemon(True)
    log_thread.start()

    delay_thread = Thread(target=delay_proxy, args=(ipc_push_url, ipc_sub_url))
    delay_thread.setDaemon(True)
    delay_thread.start()

    del xsub_socket, xpub_socket, pull_socket

    topics = ('notify.eye_process.', 'notify.player_process.',
              'notify.world_process.', 'notify.service_process',
              'notify.reset_restart_process.', 'notify.player_drop_process.',
              'notify.launcher_process.', 'notify.meta.should_doc',
              'notify.circle_detector_process.should_start',
              'notify.ipc_startup')
    cmd_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=topics)
    cmd_push = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)

    while True:
        # Wait until subscriptions were successfull
        cmd_push.notify({'subject': 'ipc_startup'})
        if cmd_sub.socket.poll(timeout=50):
            cmd_sub.recv()
            break

    if app == 'service':
        cmd_push.notify({'subject': 'service_process.should_start'})
    elif app == 'capture':
        cmd_push.notify({'subject': 'world_process.should_start'})
    elif app == 'player':
        if len(sys.argv) > 2:
            rec_dir = os.path.expanduser(sys.argv[-1])
        else:
            rec_dir = None
        cmd_push.notify({
            'subject': 'player_drop_process.should_start',
            'rec_dir': rec_dir
        })

    with Prevent_Idle_Sleep():
        while True:
            # listen for relevant messages.
            if cmd_sub.socket.poll(timeout=1000):
                topic, n = cmd_sub.recv()
                if "notify.eye_process.should_start" in topic:
                    eye_id = n['eye_id']
                    Process(target=eye,
                            name='eye{}'.format(eye_id),
                            args=(timebase, eyes_are_alive[eye_id],
                                  ipc_pub_url, ipc_sub_url, ipc_push_url,
                                  user_dir, app_version, eye_id,
                                  n.get('overwrite_cap_settings'))).start()
                elif "notify.player_process.should_start" in topic:
                    Process(target=player,
                            name='player',
                            args=(
                                n['rec_dir'],
                                ipc_pub_url,
                                ipc_sub_url,
                                ipc_push_url,
                                user_dir,
                                app_version,
                            )).start()
                elif "notify.world_process.should_start" in topic:
                    Process(target=world,
                            name='world',
                            args=(
                                timebase,
                                eyes_are_alive,
                                ipc_pub_url,
                                ipc_sub_url,
                                ipc_push_url,
                                user_dir,
                                app_version,
                            )).start()
                elif "notify.reset_restart_process.should_start" in topic:
                    Process(target=reset_restart,
                            name='reset_restart',
                            args=(
                                ipc_push_url,
                                user_dir,
                            )).start()
                elif "notify.service_process.should_start" in topic:
                    Process(target=service,
                            name='service',
                            args=(timebase, eyes_are_alive, ipc_pub_url,
                                  ipc_sub_url, ipc_push_url, user_dir,
                                  app_version)).start()
                elif "notify.player_drop_process.should_start" in topic:
                    Process(target=player_drop,
                            name='player',
                            args=(
                                n['rec_dir'],
                                ipc_pub_url,
                                ipc_sub_url,
                                ipc_push_url,
                                user_dir,
                                app_version,
                            )).start()
                elif "notify.circle_detector_process.should_start" in topic:
                    Process(target=circle_detector,
                            name='circle_detector',
                            args=(ipc_push_url, n['pair_url'],
                                  n['source_path'])).start()
                elif "notify.meta.should_doc" in topic:
                    cmd_push.notify({
                        'subject': 'meta.doc',
                        'actor': 'launcher',
                        'doc': launcher.__doc__
                    })
            else:
                if not active_children():
                    break

        for p in active_children():
            p.join()
Ejemplo n.º 21
0
    def thread_loop(self, context, pipe):
        poller = zmq.Poller()
        ipc_pub = zmq_tools.Msg_Dispatcher(context, self.g_pool.ipc_push_url)
        ipc_sub = zmq_tools.Msg_Receiver(context, self.g_pool.ipc_sub_url,
                                         ('gaze', 'notify.calibration.failed',
                                          'notify.calibration.successful'))
        poller.register(pipe, zmq.POLLIN)
        poller.register(ipc_sub.socket, zmq.POLLIN)
        remote_socket = None
        self.gaze_receiver = None
        self.calib_result_receiver = None

        while True:
            items = [sock for sock, _ in poller.poll()]
            if pipe in items:
                cmd = pipe.recv_string()
                if cmd == 'Exit':
                    break
                elif cmd == 'Bind':
                    new_url = pipe.recv_string()
                    if remote_socket:
                        poller.unregister(remote_socket)
                        remote_socket.close()
                    try:
                        remote_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
                        remote_socket.setblocking(False)
                        addr, port = new_url.split(':')
                        socket_addr = (addr, int(port))
                        remote_socket.bind(socket_addr)
                    except OSError as e:
                        remote_socket = None
                        pipe.send_string("Error", flags=zmq.SNDMORE)
                        pipe.send_string("Could not bind to Socket: {}. Reason: {}".format(new_url, e))
                    else:
                        pipe.send_string("Bind OK", flags=zmq.SNDMORE)
                        # TODO: get addr
                        pipe.send_string(new_url)
                        poller.register(remote_socket, zmq.POLLIN)

            if remote_socket.fileno() in items:
                self.on_recv(remote_socket, ipc_pub)

            if ipc_sub.socket in items:
                while ipc_sub.new_data:
                    # we should only receive gaze data
                    topic, payload = ipc_sub.recv()

                    # gaze events
                    if (self.gaze_receiver is not None and
                            remote_socket is not None and
                            topic.startswith('gaze')):
                        _, method, eye = payload['topic'].split('.')
                        if method == '2d':
                            data = b'EG%s%s%s' % (method[:1].encode(),
                                                  eye.encode(),
                                                  struct.pack('ff', *payload['norm_pos']))
                        elif method == '3d':
                            data = b'EG%s%s%s' % (method[:1].encode(),
                                                  eye.encode(),
                                                  struct.pack('fff', *payload['gaze_point_3d']))
                        else:
                            logger.error('Error while relaying gaze: "{}": {}'.format(topic, payload))
                            data = b'EGFError while relaying gaze'
                        remote_socket.sendto(data, self.gaze_receiver)

                    # calibration events
                    elif (self.calib_result_receiver is not None and
                            remote_socket is not None and
                            topic.startswith('notify.calibration.')):

                        if payload['subject'] == 'calibration.successful':
                            # event calibration successful
                            remote_socket.sendto(b'ECS', self.calib_result_receiver)
                            self.calib_result_receiver = None
                        elif payload['subject'] == 'calibration.failed':
                            # event calibration failed
                            remote_socket.sendto(b'ECF', self.calib_result_receiver)
                            self.calib_result_receiver = None

        remote_socket.close()
        self.thread_pipe = None
Ejemplo n.º 22
0
def world(
    timebase,
    eye_procs_alive,
    ipc_pub_url,
    ipc_sub_url,
    ipc_push_url,
    user_dir,
    version,
    preferred_remote_port,
    hide_ui,
    debug,
):
    """Reads world video and runs plugins.

    Creates a window, gl context.
    Grabs images from a capture.
    Maps pupil to gaze data
    Can run various plug-ins.

    Reacts to notifications:
        ``eye_process.started``
        ``start_plugin``
        ``should_stop``

    Emits notifications:
        ``eye_process.should_start``
        ``eye_process.should_stop``
        ``world_process.started``
        ``world_process.stopped``
        ``recording.should_stop``: Emits on camera failure
        ``launcher_process.should_stop``

    Emits data:
        ``gaze``: Gaze data from current gaze mapping plugin.``
        ``*``: any other plugin generated data in the events
               that it not [dt,pupil,gaze].
    """

    # We defer the imports because of multiprocessing.
    # Otherwise the world process each process also loads the other imports.
    # This is not harmful but unnecessary.

    # general imports
    from time import sleep
    import logging

    # networking
    import zmq
    import zmq_tools

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=("notify",))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.NOTSET)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    def launch_eye_process(eye_id, delay=0):
        n = {
            "subject": "eye_process.should_start.{}".format(eye_id),
            "eye_id": eye_id,
            "delay": delay,
        }
        ipc_pub.notify(n)

    def stop_eye_process(eye_id):
        n = {
            "subject": "eye_process.should_stop.{}".format(eye_id),
            "eye_id": eye_id,
            "delay": 0.2,
        }
        ipc_pub.notify(n)

    def start_stop_eye(eye_id, make_alive):
        if make_alive:
            launch_eye_process(eye_id)
        else:
            stop_eye_process(eye_id)

    def detection_enabled_getter() -> bool:
        return g_pool.pupil_detection_enabled

    def detection_enabled_setter(is_on: bool):
        g_pool.pupil_detection_enabled = is_on
        n = {"subject": "set_pupil_detection_enabled", "value": is_on}
        ipc_pub.notify(n)

    try:
        from background_helper import IPC_Logging_Task_Proxy

        IPC_Logging_Task_Proxy.push_url = ipc_push_url

        from tasklib.background.patches import IPCLoggingPatch

        IPCLoggingPatch.ipc_push_url = ipc_push_url

        from OpenGL.GL import GL_COLOR_BUFFER_BIT

        # display
        import glfw

        glfw.ERROR_REPORTING = "raise"

        from version_utils import parse_version
        from pyglui import ui, cygl, __version__ as pyglui_version

        assert parse_version(pyglui_version) >= parse_version(
            "1.27"
        ), "pyglui out of date, please upgrade to newest version"
        from pyglui.cygl.utils import Named_Texture
        import gl_utils

        # helpers/utils
        from file_methods import Persistent_Dict
        from methods import normalize, denormalize, delta_t, get_system_info, timer
        from uvc import get_time_monotonic

        logger.info("Application Version: {}".format(version))
        logger.info("System Info: {}".format(get_system_info()))
        logger.debug(f"Debug flag: {debug}")

        import audio

        # Plug-ins
        from plugin import (
            Plugin,
            System_Plugin_Base,
            Plugin_List,
            import_runtime_plugins,
        )
        from plugin_manager import Plugin_Manager
        from calibration_choreography import (
            available_calibration_choreography_plugins,
            CalibrationChoreographyPlugin,
            patch_loaded_plugins_with_choreography_plugin,
        )

        available_choreography_plugins = available_calibration_choreography_plugins()

        from gaze_mapping import registered_gazer_classes
        from gaze_mapping.gazer_base import GazerBase
        from pupil_detector_plugins.detector_base_plugin import PupilDetectorPlugin
        from fixation_detector import Fixation_Detector
        from recorder import Recorder
        from display_recent_gaze import Display_Recent_Gaze
        from time_sync import Time_Sync
        from network_api import NetworkApiPlugin
        from pupil_groups import Pupil_Groups
        from surface_tracker import Surface_Tracker_Online
        from log_display import Log_Display
        from annotations import Annotation_Capture
        from log_history import Log_History
        from blink_detection import Blink_Detection
        from video_capture import (
            source_classes,
            manager_classes,
            Base_Manager,
            Base_Source,
        )
        from pupil_data_relay import Pupil_Data_Relay
        from remote_recorder import Remote_Recorder
        from accuracy_visualizer import Accuracy_Visualizer

        from system_graphs import System_Graphs
        from camera_intrinsics_estimation import Camera_Intrinsics_Estimation
        from hololens_relay import Hololens_Relay
        from head_pose_tracker.online_head_pose_tracker import Online_Head_Pose_Tracker

        # UI Platform tweaks
        if platform.system() == "Linux":
            scroll_factor = 10.0
            window_position_default = (30, 30)
        elif platform.system() == "Windows":
            scroll_factor = 10.0
            window_position_default = (8, 90)
        else:
            scroll_factor = 1.0
            window_position_default = (0, 0)

        process_was_interrupted = False

        def interrupt_handler(sig, frame):
            import traceback

            trace = traceback.format_stack(f=frame)
            logger.debug(f"Caught signal {sig} in:\n" + "".join(trace))
            nonlocal process_was_interrupted
            process_was_interrupted = True

        signal.signal(signal.SIGINT, interrupt_handler)

        icon_bar_width = 50
        window_size = None
        camera_render_size = None
        content_scale = 1.0

        # g_pool holds variables for this process they are accessible to all plugins
        g_pool = SimpleNamespace()
        g_pool.debug = debug
        g_pool.app = "capture"
        g_pool.process = "world"
        g_pool.user_dir = user_dir
        g_pool.version = version
        g_pool.timebase = timebase
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.eye_procs_alive = eye_procs_alive
        g_pool.preferred_remote_port = preferred_remote_port

        def get_timestamp():
            return get_time_monotonic() - g_pool.timebase.value

        g_pool.get_timestamp = get_timestamp
        g_pool.get_now = get_time_monotonic

        # manage plugins
        runtime_plugins = import_runtime_plugins(
            os.path.join(g_pool.user_dir, "plugins")
        )
        runtime_plugins = [
            p for p in runtime_plugins if not issubclass(p, PupilDetectorPlugin)
        ]
        user_plugins = [
            Pupil_Groups,
            NetworkApiPlugin,
            Time_Sync,
            Surface_Tracker_Online,
            Annotation_Capture,
            Log_History,
            Fixation_Detector,
            Blink_Detection,
            Remote_Recorder,
            Accuracy_Visualizer,
            Camera_Intrinsics_Estimation,
            Hololens_Relay,
            Online_Head_Pose_Tracker,
        ]

        system_plugins = (
            [
                Log_Display,
                Display_Recent_Gaze,
                Recorder,
                Pupil_Data_Relay,
                Plugin_Manager,
                System_Graphs,
            ]
            + manager_classes
            + source_classes
        )
        plugins = (
            system_plugins
            + user_plugins
            + runtime_plugins
            + available_choreography_plugins
            + registered_gazer_classes()
        )
        user_plugins += [
            p
            for p in runtime_plugins
            if not isinstance(
                p,
                (
                    Base_Manager,
                    Base_Source,
                    System_Plugin_Base,
                    CalibrationChoreographyPlugin,
                    GazerBase,
                ),
            )
        ]
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}

        default_capture_name = "UVC_Source"
        default_capture_settings = {
            "preferred_names": [
                "Pupil Cam1 ID2",
                "Logitech Camera",
                "(046d:081d)",
                "C510",
                "B525",
                "C525",
                "C615",
                "C920",
                "C930e",
            ],
            "frame_size": (1280, 720),
            "frame_rate": 30,
        }

        default_plugins = [
            (default_capture_name, default_capture_settings),
            ("Pupil_Data_Relay", {}),
            ("UVC_Manager", {}),
            ("NDSI_Manager", {}),
            ("HMD_Streaming_Manager", {}),
            ("File_Manager", {}),
            ("Log_Display", {}),
            ("Dummy_Gaze_Mapper", {}),
            ("Display_Recent_Gaze", {}),
            # Calibration choreography plugin is added below by calling
            # patch_loaded_plugins_with_choreography_plugin
            ("Recorder", {}),
            ("NetworkApiPlugin", {}),
            ("Fixation_Detector", {}),
            ("Blink_Detection", {}),
            ("Accuracy_Visualizer", {}),
            ("Plugin_Manager", {}),
            ("System_Graphs", {}),
        ]

        def consume_events_and_render_buffer():
            gl_utils.glViewport(0, 0, *camera_render_size)
            for p in g_pool.plugins:
                p.gl_display()

            gl_utils.glViewport(0, 0, *window_size)
            try:
                clipboard = glfw.get_clipboard_string(main_window).decode()
            except (AttributeError, glfw.GLFWError):
                # clipboard is None, might happen on startup
                clipboard = ""
            g_pool.gui.update_clipboard(clipboard)
            user_input = g_pool.gui.update()
            if user_input.clipboard != clipboard:
                # only write to clipboard if content changed
                glfw.set_clipboard_string(main_window, user_input.clipboard)

            for button, action, mods in user_input.buttons:
                x, y = glfw.get_cursor_pos(main_window)
                pos = gl_utils.window_coordinate_to_framebuffer_coordinate(
                    main_window, x, y, cached_scale=None
                )
                pos = normalize(pos, camera_render_size)
                # Position in img pixels
                pos = denormalize(pos, g_pool.capture.frame_size)

                for plugin in g_pool.plugins:
                    if plugin.on_click(pos, button, action):
                        break

            for key, scancode, action, mods in user_input.keys:
                for plugin in g_pool.plugins:
                    if plugin.on_key(key, scancode, action, mods):
                        break

            for char_ in user_input.chars:
                for plugin in g_pool.plugins:
                    if plugin.on_char(char_):
                        break

            glfw.swap_buffers(main_window)

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size
            nonlocal camera_render_size
            nonlocal content_scale
            if w == 0 or h == 0:
                return

            # Always clear buffers on resize to make sure that there are no overlapping
            # artifacts from previous frames.
            gl_utils.glClear(GL_COLOR_BUFFER_BIT)
            gl_utils.glClearColor(0, 0, 0, 1)

            content_scale = gl_utils.get_content_scale(window)
            framebuffer_scale = gl_utils.get_framebuffer_scale(window)
            g_pool.gui.scale = content_scale
            window_size = w, h
            camera_render_size = w - int(icon_bar_width * g_pool.gui.scale), h
            g_pool.gui.update_window(*window_size)
            g_pool.gui.collect_menus()

            for p in g_pool.plugins:
                p.on_window_resize(window, *camera_render_size)

            # Minimum window size required, otherwise parts of the UI can cause openGL
            # issues with permanent effects. Depends on the content scale, which can
            # potentially be dynamically modified, so we re-adjust the size limits every
            # time here.
            min_size = int(2 * icon_bar_width * g_pool.gui.scale / framebuffer_scale)
            glfw.set_window_size_limits(
                window,
                min_size,
                min_size,
                glfw.DONT_CARE,
                glfw.DONT_CARE,
            )

            # Needed, to update the window buffer while resizing
            consume_events_and_render_buffer()

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            x, y = gl_utils.window_coordinate_to_framebuffer_coordinate(
                window, x, y, cached_scale=None
            )
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, paths):
            for plugin in g_pool.plugins:
                if plugin.on_drop(paths):
                    break

        tick = delta_t()

        def get_dt():
            return next(tick)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(g_pool.user_dir, "user_settings_world")
        )
        if parse_version(session_settings.get("version", "0.0")) != g_pool.version:
            logger.info(
                "Session setting are from a different version of this app. I will not use those."
            )
            session_settings.clear()

        g_pool.min_data_confidence = 0.6
        g_pool.min_calibration_confidence = session_settings.get(
            "min_calibration_confidence", 0.8
        )
        g_pool.pupil_detection_enabled = session_settings.get(
            "pupil_detection_enabled", True
        )
        g_pool.active_gaze_mapping_plugin = None
        g_pool.capture = None

        audio.set_audio_mode(
            session_settings.get("audio_mode", audio.get_default_audio_mode())
        )

        def handle_notifications(noti):
            subject = noti["subject"]
            if subject == "set_pupil_detection_enabled":
                g_pool.pupil_detection_enabled = noti["value"]
            elif subject == "start_plugin":
                try:
                    g_pool.plugins.add(
                        g_pool.plugin_by_name[noti["name"]], args=noti.get("args", {})
                    )
                except KeyError as err:
                    logger.error(f"Attempt to load unknown plugin: {err}")
            elif subject == "stop_plugin":
                for p in g_pool.plugins:
                    if p.class_name == noti["name"]:
                        p.alive = False
                        g_pool.plugins.clean()
            elif subject == "eye_process.started":
                noti = {
                    "subject": "set_pupil_detection_enabled",
                    "value": g_pool.pupil_detection_enabled,
                }
                ipc_pub.notify(noti)
            elif subject == "set_min_calibration_confidence":
                g_pool.min_calibration_confidence = noti["value"]
            elif subject.startswith("meta.should_doc"):
                ipc_pub.notify(
                    {"subject": "meta.doc", "actor": g_pool.app, "doc": world.__doc__}
                )
                for p in g_pool.plugins:
                    if (
                        p.on_notify.__doc__
                        and p.__class__.on_notify != Plugin.on_notify
                    ):
                        ipc_pub.notify(
                            {
                                "subject": "meta.doc",
                                "actor": p.class_name,
                                "doc": p.on_notify.__doc__,
                            }
                        )
            elif subject == "world_process.adapt_window_size":
                set_window_size()
            elif subject == "world_process.should_stop":
                glfw.set_window_should_close(main_window, True)

        width, height = session_settings.get(
            "window_size", (1280 + icon_bar_width, 720)
        )

        # window and gl setup
        glfw.init()
        glfw.window_hint(glfw.SCALE_TO_MONITOR, glfw.TRUE)
        if hide_ui:
            glfw.window_hint(glfw.VISIBLE, 0)  # hide window
        main_window = glfw.create_window(
            width, height, "Pupil Capture - World", None, None
        )

        window_position_manager = gl_utils.WindowPositionManager()
        window_pos = window_position_manager.new_window_position(
            window=main_window,
            default_position=window_position_default,
            previous_position=session_settings.get("window_position", None),
        )
        glfw.set_window_pos(main_window, window_pos[0], window_pos[1])

        glfw.make_context_current(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def reset_restart():
            logger.warning("Resetting all settings and restarting Capture.")
            glfw.set_window_should_close(main_window, True)
            ipc_pub.notify({"subject": "clear_settings_process.should_start"})
            ipc_pub.notify({"subject": "world_process.should_start", "delay": 2.0})

        def toggle_general_settings(collapsed):
            # this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is opened, the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        # setup GUI
        g_pool.gui = ui.UI()
        g_pool.menubar = ui.Scrolling_Menu(
            "Settings", pos=(-400, 0), size=(-icon_bar_width, 0), header_pos="left"
        )
        g_pool.iconbar = ui.Scrolling_Menu(
            "Icons", pos=(-icon_bar_width, 0), size=(0, 0), header_pos="hidden"
        )
        g_pool.quickbar = ui.Stretching_Menu("Quick Bar", (0, 100), (120, -100))
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        general_settings = ui.Growing_Menu("General", header_pos="headline")

        def set_window_size():
            # Get current capture frame size
            f_width, f_height = g_pool.capture.frame_size

            # Get current display scale factor
            content_scale = gl_utils.get_content_scale(main_window)
            framebuffer_scale = gl_utils.get_framebuffer_scale(main_window)
            display_scale_factor = content_scale / framebuffer_scale

            # Scale the capture frame size by display scale factor
            f_width *= display_scale_factor
            f_height *= display_scale_factor

            # Increas the width to account for the added scaled icon bar width
            f_width += icon_bar_width * display_scale_factor

            # Set the newly calculated size (scaled capture frame size + scaled icon bar width)
            glfw.set_window_size(main_window, int(f_width), int(f_height))

        general_settings.append(ui.Button("Reset window size", set_window_size))
        general_settings.append(
            ui.Selector(
                "Audio mode",
                None,
                getter=audio.get_audio_mode,
                setter=audio.set_audio_mode,
                selection=audio.get_audio_mode_list(),
            )
        )

        general_settings.append(
            ui.Switch(
                "pupil_detection_enabled",
                label="Pupil detection",
                getter=detection_enabled_getter,
                setter=detection_enabled_setter,
            )
        )
        general_settings.append(
            ui.Switch(
                "eye0_process",
                label="Detect eye 0",
                setter=lambda alive: start_stop_eye(0, alive),
                getter=lambda: eye_procs_alive[0].value,
            )
        )
        general_settings.append(
            ui.Switch(
                "eye1_process",
                label="Detect eye 1",
                setter=lambda alive: start_stop_eye(1, alive),
                getter=lambda: eye_procs_alive[1].value,
            )
        )

        general_settings.append(
            ui.Info_Text("Capture Version: {}".format(g_pool.version))
        )
        general_settings.append(
            ui.Button("Restart with default settings", reset_restart)
        )

        g_pool.menubar.append(general_settings)
        icon = ui.Icon(
            "collapsed",
            general_settings,
            label=chr(0xE8B8),
            on_val=False,
            off_val=True,
            setter=toggle_general_settings,
            label_font="pupil_icons",
        )
        icon.tooltip = "General Settings"
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        loaded_plugins = session_settings.get("loaded_plugins", default_plugins)

        # Resolve the active calibration choreography plugin
        loaded_plugins = patch_loaded_plugins_with_choreography_plugin(
            loaded_plugins, app=g_pool.app
        )
        session_settings["loaded_plugins"] = loaded_plugins

        # plugins that are loaded based on user settings from previous session
        g_pool.plugins = Plugin_List(g_pool, loaded_plugins)

        if not g_pool.capture:
            # Make sure we always have a capture running. Important if there was no
            # capture stored in session settings.
            g_pool.plugins.add(
                g_pool.plugin_by_name[default_capture_name], default_capture_settings
            )

        # Register callbacks main_window
        glfw.set_framebuffer_size_callback(main_window, on_resize)
        glfw.set_key_callback(main_window, on_window_key)
        glfw.set_char_callback(main_window, on_window_char)
        glfw.set_mouse_button_callback(main_window, on_window_mouse_button)
        glfw.set_cursor_pos_callback(main_window, on_pos)
        glfw.set_scroll_callback(main_window, on_scroll)
        glfw.set_drop_callback(main_window, on_drop)

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        toggle_general_settings(True)

        # now that we have a proper window we can load the last gui configuration
        g_pool.gui.configuration = session_settings.get("ui_config", {})
        # If previously selected plugin was not loaded this time, we will have an
        # expanded menubar without any menu selected. We need to ensure the menubar is
        # collapsed in this case.
        if all(submenu.collapsed for submenu in g_pool.menubar.elements):
            g_pool.menubar.collapsed = True

        # create a timer to control window update frequency
        window_update_timer = timer(1 / 60)

        def window_should_update():
            return next(window_update_timer)

        # trigger setup of window and gl sizes
        on_resize(main_window, *glfw.get_framebuffer_size(main_window))

        if session_settings.get("eye1_process_alive", True):
            launch_eye_process(1, delay=0.6)
        if session_settings.get("eye0_process_alive", True):
            launch_eye_process(0, delay=0.3)

        ipc_pub.notify({"subject": "world_process.started"})
        logger.warning("Process started.")

        if platform.system() == "Darwin":
            # On macOS, calls to glfw.swap_buffers() deliberately take longer in case of
            # occluded windows, based on the swap interval value. This causes an FPS drop
            # and leads to problems when recording. To side-step this behaviour, the swap
            # interval is set to zero.
            #
            # Read more about window occlusion on macOS here:
            # https://developer.apple.com/library/archive/documentation/Performance/Conceptual/power_efficiency_guidelines_osx/WorkWhenVisible.html
            glfw.swap_interval(0)

        # Event loop
        while not glfw.window_should_close(main_window) and not process_was_interrupted:

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            # a dictionary that allows plugins to post and read events
            events = {}
            # report time between now and the last loop interation
            events["dt"] = get_dt()

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            # "blacklisted" events that were already sent
            del events["pupil"]
            del events["gaze"]
            # delete if exists. More expensive than del, so only use it when key might not exist
            events.pop("annotation", None)

            # send new events to ipc:
            if "frame" in events:
                del events["frame"]  # send explicitly with frame publisher
            if "depth_frame" in events:
                del events["depth_frame"]
            if "audio_packets" in events:
                del events["audio_packets"]
            del events["dt"]  # no need to send this
            for data in events.values():
                assert isinstance(data, (list, tuple))
                for d in data:
                    ipc_pub.send(d)

            glfw.make_context_current(main_window)
            # render visual feedback from loaded plugins
            glfw.poll_events()
            if window_should_update() and gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *camera_render_size)
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)
                try:
                    clipboard = glfw.get_clipboard_string(main_window).decode()
                except (AttributeError, glfw.GLFWError):
                    # clipboard is None, might happen on startup
                    clipboard = ""
                g_pool.gui.update_clipboard(clipboard)
                user_input = g_pool.gui.update()
                if user_input.clipboard != clipboard:
                    # only write to clipboard if content changed
                    glfw.set_clipboard_string(main_window, user_input.clipboard)

                for button, action, mods in user_input.buttons:
                    x, y = glfw.get_cursor_pos(main_window)
                    pos = gl_utils.window_coordinate_to_framebuffer_coordinate(
                        main_window, x, y, cached_scale=None
                    )
                    pos = normalize(pos, camera_render_size)
                    # Position in img pixels
                    pos = denormalize(pos, g_pool.capture.frame_size)

                    for plugin in g_pool.plugins:
                        if plugin.on_click(pos, button, action):
                            break

                for key, scancode, action, mods in user_input.keys:
                    for plugin in g_pool.plugins:
                        if plugin.on_key(key, scancode, action, mods):
                            break

                for char_ in user_input.chars:
                    for plugin in g_pool.plugins:
                        if plugin.on_char(char_):
                            break

                glfw.swap_buffers(main_window)

        session_settings["loaded_plugins"] = g_pool.plugins.get_initializers()
        session_settings["ui_config"] = g_pool.gui.configuration
        session_settings["version"] = str(g_pool.version)
        session_settings["eye0_process_alive"] = eye_procs_alive[0].value
        session_settings["eye1_process_alive"] = eye_procs_alive[1].value
        session_settings[
            "min_calibration_confidence"
        ] = g_pool.min_calibration_confidence
        session_settings["pupil_detection_enabled"] = g_pool.pupil_detection_enabled
        session_settings["audio_mode"] = audio.get_audio_mode()

        if not hide_ui:
            glfw.restore_window(main_window)  # need to do this for windows os
            session_settings["window_position"] = glfw.get_window_pos(main_window)
            session_window_size = glfw.get_window_size(main_window)
            if 0 not in session_window_size:
                f_width, f_height = session_window_size
                if platform.system() in ("Windows", "Linux"):
                    f_width, f_height = (
                        f_width / content_scale,
                        f_height / content_scale,
                    )
                session_settings["window_size"] = int(f_width), int(f_height)

        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.gui.terminate()
        glfw.destroy_window(main_window)
        glfw.terminate()

    except Exception:
        import traceback

        trace = traceback.format_exc()
        logger.error("Process Capture crashed with trace:\n{}".format(trace))

    finally:
        # shut down eye processes:
        stop_eye_process(0)
        stop_eye_process(1)

        logger.info("Process shutting down.")
        ipc_pub.notify({"subject": "world_process.stopped"})
        sleep(1.0)
Ejemplo n.º 23
0
def launcher():
    """Starts eye processes. Hosts the IPC Backbone and Logging functions.

    Reacts to notifications:
       ``launcher_process.should_stop``: Stops the launcher process
       ``eye_process.should_start``: Starts the eye process
    """

    # Reliable msg dispatch to the IPC via push bridge.
    def pull_pub(ipc_pub_url, pull):
        ctx = zmq.Context.instance()
        pub = ctx.socket(zmq.PUB)
        pub.connect(ipc_pub_url)

        while True:
            m = pull.recv_multipart()
            pub.send_multipart(m)

    # The delay proxy handles delayed notififications.
    def delay_proxy(ipc_pub_url, ipc_sub_url):
        ctx = zmq.Context.instance()
        sub = zmq_tools.Msg_Receiver(ctx, ipc_sub_url, ("delayed_notify", ))
        pub = zmq_tools.Msg_Dispatcher(ctx, ipc_pub_url)
        poller = zmq.Poller()
        poller.register(sub.socket, zmq.POLLIN)
        waiting_notifications = {}

        TOPIC_CUTOFF = len("delayed_")

        while True:
            if poller.poll(timeout=250):
                # Recv new delayed notification and store it.
                topic, n = sub.recv()
                n["__notify_time__"] = time() + n["delay"]
                waiting_notifications[n["subject"]] = n
            # When a notifications time has come, pop from dict and send it as notification
            for s, n in list(waiting_notifications.items()):
                if n["__notify_time__"] < time():
                    n["topic"] = n["topic"][TOPIC_CUTOFF:]
                    del n["__notify_time__"]
                    del n["delay"]
                    del waiting_notifications[s]
                    pub.notify(n)

    # Recv log records from other processes.
    def log_loop(ipc_sub_url, log_level_debug):
        import logging

        # Get the root logger
        logger = logging.getLogger()
        # set log level
        logger.setLevel(logging.NOTSET)
        # Stream to file
        fh = logging.FileHandler(
            os.path.join(user_dir, "{}.log".format(parsed_args.app)),
            mode="w",
            encoding="utf-8",
        )
        fh.setFormatter(
            logging.Formatter(
                "%(asctime)s - %(processName)s - [%(levelname)s] %(name)s: %(message)s"
            ))
        logger.addHandler(fh)
        # Stream to console.
        ch = logging.StreamHandler()
        ch.setFormatter(
            logging.Formatter(
                "%(processName)s - [%(levelname)s] %(name)s: %(message)s"))
        if log_level_debug:
            ch.setLevel(logging.DEBUG)
        else:
            ch.setLevel(logging.INFO)
        logger.addHandler(ch)
        # IPC setup to receive log messages. Use zmq_tools.ZMQ_handler to send messages to here.
        sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                     ipc_sub_url,
                                     topics=("logging", ))
        while True:
            topic, msg = sub.recv()
            record = logging.makeLogRecord(msg)
            logger.handle(record)

    ## IPC
    timebase = Value(c_double, 0)
    eye_procs_alive = Value(c_bool, 0), Value(c_bool, 0)

    zmq_ctx = zmq.Context()

    # Let the OS choose the IP and PORT
    ipc_pub_url = "tcp://*:*"
    ipc_sub_url = "tcp://*:*"
    ipc_push_url = "tcp://*:*"

    # Binding IPC Backbone Sockets to URLs.
    # They are used in the threads started below.
    # Using them in the main thread is not allowed.
    xsub_socket = zmq_ctx.socket(zmq.XSUB)
    xsub_socket.bind(ipc_pub_url)
    ipc_pub_url = xsub_socket.last_endpoint.decode("utf8").replace(
        "0.0.0.0", "127.0.0.1")

    xpub_socket = zmq_ctx.socket(zmq.XPUB)
    xpub_socket.bind(ipc_sub_url)
    ipc_sub_url = xpub_socket.last_endpoint.decode("utf8").replace(
        "0.0.0.0", "127.0.0.1")

    pull_socket = zmq_ctx.socket(zmq.PULL)
    pull_socket.bind(ipc_push_url)
    ipc_push_url = pull_socket.last_endpoint.decode("utf8").replace(
        "0.0.0.0", "127.0.0.1")

    # Starting communication threads:
    # A ZMQ Proxy Device serves as our IPC Backbone
    ipc_backbone_thread = Thread(target=zmq.proxy,
                                 args=(xsub_socket, xpub_socket))
    ipc_backbone_thread.setDaemon(True)
    ipc_backbone_thread.start()

    pull_pub = Thread(target=pull_pub, args=(ipc_pub_url, pull_socket))
    pull_pub.setDaemon(True)
    pull_pub.start()

    log_thread = Thread(target=log_loop, args=(ipc_sub_url, parsed_args.debug))
    log_thread.setDaemon(True)
    log_thread.start()

    delay_thread = Thread(target=delay_proxy, args=(ipc_push_url, ipc_sub_url))
    delay_thread.setDaemon(True)
    delay_thread.start()

    del xsub_socket, xpub_socket, pull_socket

    topics = (
        "notify.eye_process.",
        "notify.player_process.",
        "notify.world_process.",
        "notify.service_process",
        "notify.clear_settings_process.",
        "notify.player_drop_process.",
        "notify.launcher_process.",
        "notify.meta.should_doc",
        "notify.circle_detector_process.should_start",
        "notify.ipc_startup",
    )
    cmd_sub = zmq_tools.Msg_Receiver(zmq_ctx, ipc_sub_url, topics=topics)
    cmd_push = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)

    while True:
        # Wait until subscriptions were successfull
        cmd_push.notify({"subject": "ipc_startup"})
        if cmd_sub.socket.poll(timeout=50):
            cmd_sub.recv()
            break

    import logging

    if unknown_args:
        logging.warning(f"Unknown command-line arguments: {unknown_args}")

    if parsed_args.app == "service":
        cmd_push.notify({"subject": "service_process.should_start"})
    elif parsed_args.app == "capture":
        cmd_push.notify({"subject": "world_process.should_start"})
    elif parsed_args.app == "player":
        rec_dir = os.path.expanduser(parsed_args.recording)
        cmd_push.notify({
            "subject": "player_drop_process.should_start",
            "rec_dir": rec_dir
        })

    with Prevent_Idle_Sleep():
        while True:
            # listen for relevant messages.
            if cmd_sub.socket.poll(timeout=1000):
                topic, n = cmd_sub.recv()
                if "notify.eye_process.should_start" in topic:
                    eye_id = n["eye_id"]
                    Process(
                        target=eye,
                        name="eye{}".format(eye_id),
                        args=(
                            timebase,
                            eye_procs_alive[eye_id],
                            ipc_pub_url,
                            ipc_sub_url,
                            ipc_push_url,
                            user_dir,
                            app_version,
                            eye_id,
                            n.get("overwrite_cap_settings"),
                            parsed_args.hide_ui,
                        ),
                    ).start()
                elif "notify.player_process.should_start" in topic:
                    Process(
                        target=player,
                        name="player",
                        args=(
                            n["rec_dir"],
                            ipc_pub_url,
                            ipc_sub_url,
                            ipc_push_url,
                            user_dir,
                            app_version,
                        ),
                    ).start()
                elif "notify.world_process.should_start" in topic:
                    Process(
                        target=world,
                        name="world",
                        args=(
                            timebase,
                            eye_procs_alive,
                            ipc_pub_url,
                            ipc_sub_url,
                            ipc_push_url,
                            user_dir,
                            app_version,
                            parsed_args.port,
                            parsed_args.hide_ui,
                        ),
                    ).start()
                elif "notify.clear_settings_process.should_start" in topic:
                    Process(target=clear_settings,
                            name="clear_settings",
                            args=(user_dir, )).start()
                elif "notify.service_process.should_start" in topic:
                    Process(
                        target=service,
                        name="service",
                        args=(
                            timebase,
                            eye_procs_alive,
                            ipc_pub_url,
                            ipc_sub_url,
                            ipc_push_url,
                            user_dir,
                            app_version,
                            parsed_args.port,
                            parsed_args.hide_ui,
                        ),
                    ).start()
                elif "notify.player_drop_process.should_start" in topic:
                    Process(
                        target=player_drop,
                        name="player",
                        args=(
                            n["rec_dir"],
                            ipc_pub_url,
                            ipc_sub_url,
                            ipc_push_url,
                            user_dir,
                            app_version,
                        ),
                    ).start()
                elif "notify.circle_detector_process.should_start" in topic:
                    Process(
                        target=circle_detector,
                        name="circle_detector",
                        args=(ipc_push_url, n["pair_url"], n["source_path"]),
                    ).start()
                elif "notify.meta.should_doc" in topic:
                    cmd_push.notify({
                        "subject": "meta.doc",
                        "actor": "launcher",
                        "doc": launcher.__doc__,
                    })
            else:
                if not active_children():
                    break

        for p in active_children():
            p.join()
Ejemplo n.º 24
0
def player(rec_dir, ipc_pub_url, ipc_sub_url, ipc_push_url, user_dir,
           app_version):
    # general imports
    from time import sleep
    import logging
    import errno
    from glob import glob
    from copy import deepcopy
    from time import time
    # networking
    import zmq
    import zmq_tools

    import numpy as np

    # zmq ipc setup
    zmq_ctx = zmq.Context()
    ipc_pub = zmq_tools.Msg_Dispatcher(zmq_ctx, ipc_push_url)
    notify_sub = zmq_tools.Msg_Receiver(zmq_ctx,
                                        ipc_sub_url,
                                        topics=('notify', ))

    # log setup
    logging.getLogger("OpenGL").setLevel(logging.ERROR)
    logger = logging.getLogger()
    logger.handlers = []
    logger.setLevel(logging.INFO)
    logger.addHandler(zmq_tools.ZMQ_handler(zmq_ctx, ipc_push_url))
    # create logger for the context of this function
    logger = logging.getLogger(__name__)

    try:

        # imports
        from file_methods import Persistent_Dict, load_object

        # display
        import glfw
        # check versions for our own depedencies as they are fast-changing
        from pyglui import __version__ as pyglui_version

        from pyglui import ui, cygl
        from pyglui.cygl.utils import Named_Texture
        import gl_utils
        # capture
        from video_capture import File_Source, EndofVideoFileError, FileSeekError

        # helpers/utils
        from version_utils import VersionFormat
        from methods import normalize, denormalize, delta_t, get_system_info
        from player_methods import correlate_data, is_pupil_rec_dir, load_meta_info

        # Plug-ins
        from plugin import Plugin, Plugin_List, import_runtime_plugins
        from plugin_manager import Plugin_Manager
        from vis_circle import Vis_Circle
        from vis_cross import Vis_Cross
        from vis_polyline import Vis_Polyline
        from vis_light_points import Vis_Light_Points
        from vis_watermark import Vis_Watermark
        from vis_fixation import Vis_Fixation
        from vis_scan_path import Vis_Scan_Path
        from vis_eye_video_overlay import Vis_Eye_Video_Overlay
        from seek_control import Seek_Control
        from video_export_launcher import Video_Export_Launcher
        from offline_surface_tracker import Offline_Surface_Tracker
        from marker_auto_trim_marks import Marker_Auto_Trim_Marks
        from fixation_detector import Offline_Fixation_Detector
        from batch_exporter import Batch_Exporter
        from log_display import Log_Display
        from annotations import Annotation_Player
        from raw_data_exporter import Raw_Data_Exporter
        from log_history import Log_History
        from pupil_producers import Pupil_From_Recording, Offline_Pupil_Detection
        from gaze_producers import Gaze_From_Recording, Offline_Calibration
        from system_graphs import System_Graphs

        assert pyglui_version >= '1.8', 'pyglui out of date, please upgrade to newest version'

        runtime_plugins = import_runtime_plugins(
            os.path.join(user_dir, 'plugins'))
        system_plugins = [
            Log_Display, Seek_Control, Plugin_Manager, System_Graphs
        ]
        user_plugins = [
            Vis_Circle, Vis_Fixation, Vis_Polyline, Vis_Light_Points,
            Vis_Cross, Vis_Watermark, Vis_Eye_Video_Overlay, Vis_Scan_Path,
            Offline_Fixation_Detector, Video_Export_Launcher,
            Offline_Surface_Tracker, Raw_Data_Exporter, Batch_Exporter,
            Annotation_Player, Log_History, Marker_Auto_Trim_Marks,
            Pupil_From_Recording, Offline_Pupil_Detection, Gaze_From_Recording,
            Offline_Calibration
        ] + runtime_plugins

        plugins = system_plugins + user_plugins

        # Callback functions
        def on_resize(window, w, h):
            nonlocal window_size

            if gl_utils.is_window_visible(window):
                hdpi_factor = float(
                    glfw.glfwGetFramebufferSize(window)[0] /
                    glfw.glfwGetWindowSize(window)[0])
                g_pool.gui.scale = g_pool.gui_user_scale * hdpi_factor
                window_size = w, h
                g_pool.camera_render_size = w - int(
                    icon_bar_width * g_pool.gui.scale), h
                g_pool.gui.update_window(*window_size)
                g_pool.gui.collect_menus()
                for p in g_pool.plugins:
                    p.on_window_resize(window, *g_pool.camera_render_size)

        def on_window_key(window, key, scancode, action, mods):
            g_pool.gui.update_key(key, scancode, action, mods)

        def on_window_char(window, char):
            g_pool.gui.update_char(char)

        def on_window_mouse_button(window, button, action, mods):
            g_pool.gui.update_button(button, action, mods)

        def on_pos(window, x, y):
            hdpi_factor = float(
                glfw.glfwGetFramebufferSize(window)[0] /
                glfw.glfwGetWindowSize(window)[0])
            x, y = x * hdpi_factor, y * hdpi_factor
            g_pool.gui.update_mouse(x, y)
            pos = x, y
            pos = normalize(pos, g_pool.camera_render_size)
            # Position in img pixels
            pos = denormalize(pos, g_pool.capture.frame_size)
            for p in g_pool.plugins:
                p.on_pos(pos)

        def on_scroll(window, x, y):
            g_pool.gui.update_scroll(x, y * scroll_factor)

        def on_drop(window, count, paths):
            for x in range(count):
                new_rec_dir = paths[x].decode('utf-8')
                if is_pupil_rec_dir(new_rec_dir):
                    logger.debug(
                        "Starting new session with '{}'".format(new_rec_dir))
                    ipc_pub.notify({
                        "subject": "player_drop_process.should_start",
                        "rec_dir": new_rec_dir
                    })
                    glfw.glfwSetWindowShouldClose(window, True)
                else:
                    logger.error("'{}' is not a valid pupil recording".format(
                        new_rec_dir))

        tick = delta_t()

        def get_dt():
            return next(tick)

        video_path = [
            f for f in glob(os.path.join(rec_dir, "world.*"))
            if os.path.splitext(f)[1] in ('.mp4', '.mkv', '.avi', '.h264',
                                          '.mjpeg')
        ][0]
        pupil_data_path = os.path.join(rec_dir, "pupil_data")

        meta_info = load_meta_info(rec_dir)

        # log info about Pupil Platform and Platform in player.log
        logger.info('Application Version: {}'.format(app_version))
        logger.info('System Info: {}'.format(get_system_info()))

        icon_bar_width = 50
        window_size = None

        # create container for globally scoped vars
        g_pool = Global_Container()
        g_pool.app = 'player'
        g_pool.zmq_ctx = zmq_ctx
        g_pool.ipc_pub = ipc_pub
        g_pool.ipc_pub_url = ipc_pub_url
        g_pool.ipc_sub_url = ipc_sub_url
        g_pool.ipc_push_url = ipc_push_url
        g_pool.plugin_by_name = {p.__name__: p for p in plugins}
        g_pool.camera_render_size = None

        # sets itself to g_pool.capture
        File_Source(g_pool, video_path)

        # load session persistent settings
        session_settings = Persistent_Dict(
            os.path.join(user_dir, "user_settings_player"))
        if VersionFormat(session_settings.get("version",
                                              '0.0')) != app_version:
            logger.info(
                "Session setting are a different version of this app. I will not use those."
            )
            session_settings.clear()

        width, height = session_settings.get('window_size',
                                             g_pool.capture.frame_size)
        window_pos = session_settings.get('window_position',
                                          window_position_default)
        glfw.glfwInit()
        main_window = glfw.glfwCreateWindow(
            width, height, "Pupil Player: " + meta_info["Recording Name"] +
            " - " + rec_dir.split(os.path.sep)[-1], None, None)
        glfw.glfwSetWindowPos(main_window, window_pos[0], window_pos[1])
        glfw.glfwMakeContextCurrent(main_window)
        cygl.utils.init()
        g_pool.main_window = main_window

        def set_scale(new_scale):
            hdpi_factor = float(glfw.glfwGetFramebufferSize(main_window)
                                [0]) / glfw.glfwGetWindowSize(main_window)[0]
            g_pool.gui_user_scale = new_scale
            window_size = (
                g_pool.camera_render_size[0] +
                int(icon_bar_width * g_pool.gui_user_scale * hdpi_factor),
                glfw.glfwGetFramebufferSize(main_window)[1])
            logger.warning(icon_bar_width * g_pool.gui_user_scale *
                           hdpi_factor)
            glfw.glfwSetWindowSize(main_window, *window_size)

        # load pupil_positions, gaze_positions
        g_pool.pupil_data = load_object(pupil_data_path)
        g_pool.binocular = meta_info.get('Eye Mode',
                                         'monocular') == 'binocular'
        g_pool.version = app_version
        g_pool.timestamps = g_pool.capture.timestamps
        g_pool.get_timestamp = lambda: 0.
        g_pool.new_seek = True
        g_pool.user_dir = user_dir
        g_pool.rec_dir = rec_dir
        g_pool.meta_info = meta_info
        g_pool.min_data_confidence = session_settings.get(
            'min_data_confidence', 0.6)

        g_pool.pupil_positions = []
        g_pool.gaze_positions = []
        g_pool.fixations = []

        g_pool.notifications_by_frame = correlate_data(
            g_pool.pupil_data['notifications'], g_pool.timestamps)
        g_pool.pupil_positions_by_frame = [[] for x in g_pool.timestamps
                                           ]  # populated by producer`
        g_pool.gaze_positions_by_frame = [[] for x in g_pool.timestamps
                                          ]  # populated by producer
        g_pool.fixations_by_frame = [
            [] for x in g_pool.timestamps
        ]  # populated by the fixation detector plugin

        def next_frame(_):
            try:
                g_pool.capture.seek_to_frame(g_pool.capture.get_frame_index() +
                                             1)
            except (FileSeekError):
                logger.warning("Could not seek to next frame.")
            else:
                g_pool.new_seek = True

        def prev_frame(_):
            try:
                g_pool.capture.seek_to_frame(g_pool.capture.get_frame_index() -
                                             1)
            except (FileSeekError):
                logger.warning("Could not seek to previous frame.")
            else:
                g_pool.new_seek = True

        def toggle_play(new_state):
            if g_pool.capture.get_frame_index(
            ) >= g_pool.capture.get_frame_count() - 5:
                g_pool.capture.seek_to_frame(
                    1)  # avoid pause set by hitting trimmark pause.
                logger.warning("End of video - restart at beginning.")
            g_pool.capture.play = new_state

        def set_data_confidence(new_confidence):
            g_pool.min_data_confidence = new_confidence
            notification = {'subject': 'min_data_confidence_changed'}
            notification['_notify_time_'] = time() + .8
            g_pool.ipc_pub.notify(notification)

        def open_plugin(plugin):
            if plugin == "Select to load":
                return
            g_pool.plugins.add(plugin)

        def purge_plugins():
            for p in g_pool.plugins:
                if p.__class__ in user_plugins:
                    p.alive = False
            g_pool.plugins.clean()

        def do_export(_):
            export_range = g_pool.seek_control.trim_left, g_pool.seek_control.trim_right
            export_dir = os.path.join(g_pool.rec_dir, 'exports',
                                      '{}-{}'.format(*export_range))
            try:
                os.makedirs(export_dir)
            except OSError as e:
                if e.errno != errno.EEXIST:
                    logger.error("Could not create export dir")
                    raise e
                else:
                    overwrite_warning = "Previous export for range [{}-{}] already exsits - overwriting."
                    logger.warning(overwrite_warning.format(*export_range))
            else:
                logger.info('Created export dir at "{}"'.format(export_dir))

            notification = {
                'subject': 'should_export',
                'range': export_range,
                'export_dir': export_dir
            }
            g_pool.ipc_pub.notify(notification)

        def reset_restart():
            logger.warning("Resetting all settings and restarting Player.")
            glfw.glfwSetWindowShouldClose(main_window, True)
            ipc_pub.notify({'subject': 'clear_settings_process.should_start'})
            ipc_pub.notify({
                'subject': 'player_process.should_start',
                'rec_dir': rec_dir,
                'delay': 2.
            })

        def toggle_general_settings(collapsed):
            #this is the menu toggle logic.
            # Only one menu can be open.
            # If no menu is open the menubar should collapse.
            g_pool.menubar.collapsed = collapsed
            for m in g_pool.menubar.elements:
                m.collapsed = True
            general_settings.collapsed = collapsed

        g_pool.gui = ui.UI()
        g_pool.gui_user_scale = session_settings.get('gui_scale', 1.)
        g_pool.menubar = ui.Scrolling_Menu("Settings",
                                           pos=(-500, 0),
                                           size=(-icon_bar_width, 0),
                                           header_pos='left')
        g_pool.iconbar = ui.Scrolling_Menu("Icons",
                                           pos=(-icon_bar_width, 0),
                                           size=(0, 0),
                                           header_pos='hidden')
        g_pool.timelines = ui.Container((0, 0), (0, 0), (0, 0))
        g_pool.timelines.horizontal_constraint = g_pool.menubar

        general_settings = ui.Growing_Menu('General', header_pos='headline')
        general_settings.append(
            ui.Button(
                'Reset window size', lambda: glfw.glfwSetWindowSize(
                    main_window, g_pool.capture.frame_size[0], g_pool.capture.
                    frame_size[1])))
        general_settings.append(
            ui.Selector('gui_user_scale',
                        g_pool,
                        setter=set_scale,
                        selection=[.8, .9, 1., 1.1, 1.2] +
                        list(np.arange(1.5, 5.1, .5)),
                        label='Interface Size'))
        general_settings.append(
            ui.Info_Text('Player Version: {}'.format(g_pool.version)))
        general_settings.append(
            ui.Info_Text('Capture Version: {}'.format(
                meta_info['Capture Software Version'])))
        general_settings.append(
            ui.Info_Text('Data Format Version: {}'.format(
                meta_info['Data Format Version'])))
        general_settings.append(
            ui.Slider('min_data_confidence',
                      g_pool,
                      setter=set_data_confidence,
                      step=.05,
                      min=0.0,
                      max=1.0,
                      label='Confidence threshold'))
        general_settings.append(
            ui.Button('Restart with default settings', reset_restart))

        g_pool.menubar.append(general_settings)
        icon = ui.Icon('collapsed',
                       general_settings,
                       label=chr(0xe8b8),
                       on_val=False,
                       off_val=True,
                       setter=toggle_general_settings,
                       label_font='pupil_icons')
        icon.tooltip = 'General Settings'
        g_pool.iconbar.append(icon)

        user_plugin_separator = ui.Separator()
        user_plugin_separator.order = 0.35
        g_pool.iconbar.append(user_plugin_separator)

        g_pool.quickbar = ui.Stretching_Menu('Quick Bar', (0, 100),
                                             (120, -100))
        g_pool.capture.play_button = ui.Thumb('play',
                                              g_pool.capture,
                                              label=chr(0xE037),
                                              setter=toggle_play,
                                              hotkey=glfw.GLFW_KEY_SPACE,
                                              label_font='pupil_icons')
        g_pool.capture.play_button.on_color[:] = (0.5, 0.8, 0.75, .9)
        g_pool.forward_button = ui.Thumb('forward',
                                         label=chr(0xE01F),
                                         getter=lambda: False,
                                         setter=next_frame,
                                         hotkey=glfw.GLFW_KEY_RIGHT,
                                         label_font='pupil_icons')
        g_pool.backward_button = ui.Thumb('backward',
                                          label=chr(0xE020),
                                          getter=lambda: False,
                                          setter=prev_frame,
                                          hotkey=glfw.GLFW_KEY_LEFT,
                                          label_font='pupil_icons')
        g_pool.export_button = ui.Thumb('export',
                                        label=chr(0xe2c4),
                                        getter=lambda: False,
                                        setter=do_export,
                                        hotkey='e',
                                        label_font='pupil_icons')
        g_pool.quickbar.extend([
            g_pool.capture.play_button, g_pool.forward_button,
            g_pool.backward_button, g_pool.export_button
        ])
        g_pool.gui.append(g_pool.menubar)
        g_pool.gui.append(g_pool.timelines)
        g_pool.gui.append(g_pool.iconbar)
        g_pool.gui.append(g_pool.quickbar)

        # we always load these plugins
        default_plugins = [('Plugin_Manager', {}), ('Seek_Control', {}),
                           ('Log_Display', {}), ('Vis_Scan_Path', {}),
                           ('Vis_Polyline', {}), ('Vis_Circle', {}),
                           ('System_Graphs', {}),
                           ('Video_Export_Launcher', {}),
                           ('Pupil_From_Recording', {}),
                           ('Gaze_From_Recording', {})]
        g_pool.plugins = Plugin_List(
            g_pool, session_settings.get('loaded_plugins', default_plugins))

        # Register callbacks main_window
        glfw.glfwSetFramebufferSizeCallback(main_window, on_resize)
        glfw.glfwSetKeyCallback(main_window, on_window_key)
        glfw.glfwSetCharCallback(main_window, on_window_char)
        glfw.glfwSetMouseButtonCallback(main_window, on_window_mouse_button)
        glfw.glfwSetCursorPosCallback(main_window, on_pos)
        glfw.glfwSetScrollCallback(main_window, on_scroll)
        glfw.glfwSetDropCallback(main_window, on_drop)

        g_pool.gui.configuration = session_settings.get('ui_config', {})

        # gl_state settings
        gl_utils.basic_gl_setup()
        g_pool.image_tex = Named_Texture()

        # trigger on_resize
        on_resize(main_window, *glfw.glfwGetFramebufferSize(main_window))

        def handle_notifications(n):
            subject = n['subject']
            if subject == 'start_plugin':
                g_pool.plugins.add(g_pool.plugin_by_name[n['name']],
                                   args=n.get('args', {}))
            elif subject.startswith('meta.should_doc'):
                ipc_pub.notify({
                    'subject': 'meta.doc',
                    'actor': g_pool.app,
                    'doc': player.__doc__
                })
                for p in g_pool.plugins:
                    if (p.on_notify.__doc__
                            and p.__class__.on_notify != Plugin.on_notify):
                        ipc_pub.notify({
                            'subject': 'meta.doc',
                            'actor': p.class_name,
                            'doc': p.on_notify.__doc__
                        })

        while not glfw.glfwWindowShouldClose(main_window):

            # fetch newest notifications
            new_notifications = []
            while notify_sub.new_data:
                t, n = notify_sub.recv()
                new_notifications.append(n)

            # notify each plugin if there are new notifications:
            for n in new_notifications:
                handle_notifications(n)
                for p in g_pool.plugins:
                    p.on_notify(n)

            # grab new frame
            if g_pool.capture.play or g_pool.new_seek:
                g_pool.new_seek = False
                try:
                    new_frame = g_pool.capture.get_frame()
                except EndofVideoFileError:
                    # end of video logic: pause at last frame.
                    g_pool.capture.play = False
                    logger.warning("end of video")

            frame = new_frame.copy()
            events = {}
            events['frame'] = frame
            # report time between now and the last loop interation
            events['dt'] = get_dt()
            # new positons we make a deepcopy just like the image is a copy.
            events['gaze_positions'] = deepcopy(
                g_pool.gaze_positions_by_frame[frame.index])
            events['pupil_positions'] = deepcopy(
                g_pool.pupil_positions_by_frame[frame.index])

            # allow each Plugin to do its work.
            for p in g_pool.plugins:
                p.recent_events(events)

            # check if a plugin need to be destroyed
            g_pool.plugins.clean()

            glfw.glfwMakeContextCurrent(main_window)
            # render visual feedback from loaded plugins
            if gl_utils.is_window_visible(main_window):

                gl_utils.glViewport(0, 0, *g_pool.camera_render_size)
                g_pool.capture._recent_frame = frame
                g_pool.capture.gl_display()
                for p in g_pool.plugins:
                    p.gl_display()

                gl_utils.glViewport(0, 0, *window_size)

                unused_elements = g_pool.gui.update()
                for b in unused_elements.buttons:
                    button, action, mods = b
                    pos = glfw.glfwGetCursorPos(main_window)
                    pos = normalize(pos, g_pool.camera_render_size)
                    pos = denormalize(pos, g_pool.capture.frame_size)
                    for p in g_pool.plugins:
                        p.on_click(pos, button, action)

                for key, scancode, action, mods in unused_elements.keys:
                    for p in g_pool.plugins:
                        p.on_key(key, scancode, action, mods)

                for char_ in unused_elements.chars:
                    for p in g_pool.plugins:
                        p.on_char(char_)

                glfw.glfwSwapBuffers(main_window)

            # present frames at appropriate speed
            g_pool.capture.wait(frame)
            glfw.glfwPollEvents()

        session_settings['loaded_plugins'] = g_pool.plugins.get_initializers()
        session_settings['min_data_confidence'] = g_pool.min_data_confidence
        session_settings['gui_scale'] = g_pool.gui_user_scale
        session_settings['ui_config'] = g_pool.gui.configuration
        session_settings['window_size'] = glfw.glfwGetWindowSize(main_window)
        session_settings['window_position'] = glfw.glfwGetWindowPos(
            main_window)
        session_settings['version'] = str(g_pool.version)
        session_settings.close()

        # de-init all running plugins
        for p in g_pool.plugins:
            p.alive = False
        g_pool.plugins.clean()

        g_pool.capture.cleanup()
        g_pool.gui.terminate()
        glfw.glfwDestroyWindow(main_window)

    except:
        import traceback
        trace = traceback.format_exc()
        logger.error('Process Player crashed with trace:\n{}'.format(trace))
    finally:
        logger.info("Process shutting down.")
        ipc_pub.notify({'subject': 'player_process.stopped'})
        sleep(1.0)