def openValkka(self):
self.livethread=LiveThread( # starts live stream services (using live555)
name ="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"]
)
self.gpu_handler=GPUHandler(self.pardic)
a =self.pardic["dec affinity start"]
cs=1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a>self.pardic["dec affinity stop"]): a=self.pardic["dec affinity start"]
print(pre,"openValkka: setting decoder thread on processor",a)
chain=ManagedFilterchain( # decoding and branching the stream happens here
livethread =self.livethread,
openglthreads
=self.gpu_handler.openglthreads,
address =address,
slot =cs,
affinity =a,
msreconnect =10000,
verbose=True
)
self.chains.append(chain) # important .. otherwise chain will go out of context and get garbage collected ..
cs+=1
a+=1
def openValkka(self):
self.cpu_scheme = CPUScheme()
# self.dm.camera_collection
try:
memory_config = next(
self.dm.config_collection.get(
{"classname": DataModel.MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
memory_config = default.memory_config
n_frames = round(
memory_config["msbuftime"] * default.fps /
1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores=-1)
self.gpu_handler = GPUHandler(
n_720p=memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p=memory_config["n_1080p"] * n_frames,
n_1440p=memory_config["n_1440p"] * n_frames,
n_4K=memory_config["n_4K"] * n_frames,
msbuftime=memory_config["msbuftime"],
verbose=False,
cpu_scheme=self.cpu_scheme)
self.livethread = LiveThread(name="live_thread",
verbose=False,
affinity=self.cpu_scheme.getLive())
self.usbthread = USBDeviceThread(name="usb_thread",
verbose=False,
affinity=self.cpu_scheme.getUSB())
self.filterchain_group = FilterChainGroup(datamodel=self.dm,
livethread=self.livethread,
usbthread=self.usbthread,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group.read()
# self.filterchain_group.update() # TODO: use this once fixed
try:
from valkka.mvision import multiprocess
except ImportError:
pass
else:
if self.mvision:
self.thread = multiprocess.QValkkaThread()
self.thread.start()
def openValkka(self):
self.thread = QValkkaThread() # the thread that's watching the mvision_processes
self.thread.start()
self.mvision_process.start()
self.thread.addProcess(self.mvision_process)
# """
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False
)
self.filethread = FileThread(
name="file_thread",
verbose=False
)
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=10,
n_1080p=10,
n_1440p=10,
n_4K=10,
verbose=False,
msbuftime=100,
affinity=-1
)
# this filterchain creates a shared memory server
self.chain = ShmemFilterchain1( # decoding and branching the stream happens here
openglthread = self.openglthread,
slot = 1,
shmem_name = self.shmem_name,
shmem_image_dimensions = self.shmem_image_dimensions,
shmem_image_interval = self.shmem_image_interval,
shmem_ringbuffer_size = self.shmem_ringbuffer_size
)
shmem_name, n_buffer, shmem_image_dimensions = self.chain.getShmemPars()
self.video = QtWidgets.QWidget(self.video_area)
self.win_id = int(self.video.winId())
self.video_lay.addWidget(self.video, 0, 0)
self.token = self.openglthread.connect(slot = 1, window_id = self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
self.mvision_process.activate(
n_buffer = self.shmem_ringbuffer_size,
image_dimensions = self.shmem_image_dimensions,
shmem_name = self.shmem_name
)
def openValkka(self):
self.mvision_process.go()
if self.mvision_master_process is not None:
assert (issubclass(self.mvision_master_process.__class__,
QShmemProcess))
self.mvision_master_process.go()
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False)
self.filethread = FileThread(name="file_thread", verbose=False)
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=10,
n_1080p=10,
n_1440p=10,
n_4K=10,
verbose=False,
msbuftime=100,
affinity=-1)
# this filterchain creates a shared memory server
self.chain = ShmemFilterchain1( # decoding and branching the stream happens here
openglthread=self.openglthread,
slot=1,
shmem_name=self.shmem_name,
shmem_image_dimensions=self.shmem_image_dimensions,
shmem_image_interval=self.shmem_image_interval,
shmem_ringbuffer_size=self.shmem_ringbuffer_size)
shmem_name, n_buffer, shmem_image_dimensions = self.chain.getShmemPars(
)
self.video = QtWidgets.QWidget(self.video_area)
if hasattr(self.mvision_process, "analyzer_video_widget_class"):
# the machine vision class may declare what video widget it wants to use to define the machine vision parameters (line crossing, zone intrusion, etc.)
self.analyzer_widget = AnalyzerWidget(
parent=self.video_area,
analyzer_video_widget_class=self.mvision_process.
analyzer_video_widget_class)
else:
self.analyzer_widget = AnalyzerWidget(parent=self.video_area)
self.mvision_process.connectAnalyzerWidget(self.analyzer_widget)
self.analyzer_widget.activate()
self.win_id = int(self.video.winId())
self.video_lay.addWidget(self.video, 0, 0)
self.video_lay.addWidget(self.analyzer_widget, 0, 1)
self.token = self.openglthread.connect(slot=1, window_id=self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
self.mvision_process.activate(
n_buffer=self.shmem_ringbuffer_size,
image_dimensions=self.shmem_image_dimensions,
shmem_name=self.shmem_name)
if self.mvision_master_process:
self.mvision_process.setMasterProcess(self.mvision_master_process)
class MyGui(QtWidgets.QMainWindow):
#config_dir = setValkkaLocalDir("live", varname = "config_dir")
#valkkafs_dir = setValkkaLocalDir("live","fs", varname = "valkkafs_dir")
def __init__(self, parent=None):
"""ctor
"""
super(MyGui, self).__init__()
self.initDirs()
self.initVars()
self.initConfigFiles()
self.readDB()
self.generateMethods()
self.setupUi()
self.startProcesses()
self.openValkka()
self.makeLogic()
self.post()
def getMargins(self):
# https://doc.qt.io/qt-5/application-windows.html#x11-peculiarities
if singleton.dx > 0:
return
singleton.dy = self.geometry().y() - self.y() # y() : with frame, geometry().y() : without frame
singleton.dx = self.geometry().x() - self.x()
singleton.dw = self.frameGeometry().width() - self.width()
singleton.dh = self.frameGeometry().height() - self.height()
print("getMargins: dy, dx, dw, dh", singleton.dy, singleton.dx, singleton.dw, singleton.dh)
# dy, dx, dw, dh 29 4 8 33
# WARNING! Must move main window before this starts to give any values other than zero ..!
# *** redefined Qt member functions ***
def closeEvent(self, e):
"""Triggered when the main qt program exits
"""
print("gui : closeEvent!")
self.closeContainers()
# self.manage_cameras_win.unSetPropagate() # don't send signals .. if you don't do this: close => closeEvent => will trigger self.reOpen
# self.manage_cameras_win.close()
self.camera_list_win.unSetPropagate()
self.camera_list_win.close()
self.config_win.unSetPropagate()
self.config_win.close()
self.closeValkka()
singleton.data_model.close()
self.closeProcesses()
e.accept()
def initDirs(self):
self.config_dir = singleton.config_dir
self.valkkafs_dir = singleton.valkkafs_dir
def initVars(self):
"""Define files & variables
"""
self.version_file = self.config_dir.getFile("version")
self.layout_file = self.config_dir.getFile("layout")
# singleton.thread = None # a QThread that reads multiprocessing pipes
self.containers_grid = [] # list of instances of valkka.live.container.grid.VideoContainerNxM
self.containers_playback = []
self.mvision_classes, self.mvision_client_classes, self.mvision_master_classes =\
tools.scanMVisionClasses(
singleton.mvision_package_names
)
if (len(self.mvision_classes) > 0 or len(self.mvision_client_classes) > 0):
self.mvision = True
else:
self.mvision = False
self.valkkafs = None
self.config_modified = False
self.valkkafs_modified = False
def initConfigFiles(self):
self.first_start = True
ver = self.readVersionNumber()
if ver is not None: # this indicates that the program has been started earlier
print("valkka.live : loading config file for version number", ver)
if ver:
if (ver[0] == version.VERSION_MAJOR and ver[1] == version.VERSION_MINOR):
self.first_start = False
else: # incorrect version number
print("valkka.live : clearing config")
pass
# .. or handle migration somehow
if self.first_start: # first time program start
# TODO: eula could be shown here
print(pre, "initConfigFiles : first start")
self.config_dir.reMake()
self.saveVersionNumber()
# self.saveConfigFile()
# self.saveWindowLayout() # clears window layout
self.first_start = True
def readDB(self):
"""Datamodel includes the following files: config.dat, devices.dat
"""
singleton.data_model = DataModel(directory = self.config_dir.get())
# singleton.data_model = DataModel(directory = tools.getConfigDir())
if (self.first_start):
print(pre, "readDB : first start")
singleton.data_model.clearAll()
singleton.data_model.saveAll()
# If camera collection is corrupt
if not singleton.data_model.checkCameraCollection():
singleton.data_model.clearCameraCollection()
def saveVersionNumber(self):
with open(self.version_file, "w") as f:
f.write(version.get())
def readVersionNumber(self):
try:
with open(self.version_file, "r") as f:
st = f.read()
vs = []
for s in st.split("."):
vs.append(int(s))
except:
print("valkka.live : could not read version number")
return None
else:
return vs
def saveWindowLayout(self):
self.serializeContainers()
def loadWindowLayout(self):
self.closeContainers()
self.deSerializeContainers()
# *** Generate Qt structures ***
def generateMethods(self):
"""Autogenerate some member functions
- Generates slot functions for launching containers
"""
for i in range(1, 5):
# adds member function grid_ixi_slot(self)
self.makeGridSlot(i, i)
self.makePlaybackGridSlot(i, i)
for cl in self.mvision_classes:
self.makeMvisionSlot(cl)
for cl in self.mvision_client_classes:
self.makeMvisionClientSlot(cl)
def setupUi(self):
self.setStyleSheet(style.main_gui)
self.setWindowTitle(singleton.program_name)
self.setGeometry(QtCore.QRect(100, 100, 500, 500))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.filemenu = FileMenu(parent=self)
self.viewmenu = ViewMenu(parent=self) # grids up to 4x4
self.configmenu = ConfigMenu(parent=self)
if self.mvision:
mvision_elements = []
for cl in self.mvision_classes + self.mvision_client_classes:
if cl.auto_menu:
el = QuickMenuElement(title = cl.name, method_name = cl.name)
mvision_elements.append(el)
class MVisionMenu(QuickMenu):
title = "Machine Vision"
elements = mvision_elements
self.mvisionmenu = MVisionMenu(parent = self)
self.aboutmenu = AboutMenu(parent=self)
# create container and their windows
self.manage_cameras_container = singleton.data_model.getDeviceListAndForm(None)
self.manage_memory_container = singleton.data_model.getConfigForm()
self.manage_valkkafs_container = singleton.data_model.getValkkaFSForm()
self.manage_memory_container.signals.save.connect(self.config_modified_slot)
self.manage_cameras_container.getForm().signals.save_record.connect(self.config_modified_slot)
self.manage_valkkafs_container.signals.save.connect(self.valkkafs_modified_slot)
self.config_win = QTabCapsulate(
"Configuration",
[
(self.manage_cameras_container. widget, "Camera Configuration"),
(self.manage_memory_container. widget, "Memory Configuration"),
(self.manage_valkkafs_container.widget, "Recording Configuration")
]
)
self.config_win.signals.close.connect(self.config_dialog_close_slot)
# when the configuration dialog is reopened, inform the camera configuration form .. this way it can re-check if usb cams are available
self.config_win.signals.show.connect(self.manage_cameras_container.getForm().show_slot)
self.config_win.signals.show.connect(self.manage_cameras_container.choose_first_slot) # so that we have at least one device chosen
self.makeCameraTree()
self.camera_list_win = QCapsulate(self.treelist, "Camera List")
self.wait_label = QtWidgets.QLabel("Restarting Valkka, please wait ..")
self.wait_window = QCapsulate(self.wait_label, "Wait", nude = True)
def makeCameraTree(self):
self.root = HeaderListItem()
self.treelist = BasicView(parent = None, root = self.root)
self.updateCameraTree()
def updateCameraTree(self):
self.treelist.reset_()
self.server = ServerListItem(
name = "Localhost", ip = "127.0.0.1", parent = self.root)
"""
self.server1 = ServerListItem(
name="First Server", ip="192.168.1.20", parent=self.root)
"""
"""
self.camera1 = RTSPCameraListItem(camera=RTSPCameraDevice(
ip="192.168.1.4", username="******", password="******"), parent=self.server1)
self.camera2 = RTSPCameraListItem(camera=RTSPCameraDevice(
ip="192.168.1.4", username="******", password="******"), parent=self.server1)
"""
devices = []
for row in singleton.data_model.camera_collection.get():
# print(pre, "makeCameraTree : row", row)
if (row["classname"] == RTSPCameraRow.__name__):
row.pop("classname")
devices.append(
RTSPCameraListItem(
camera = RTSPCameraDevice(**row),
parent = self.server
)
)
elif (row["classname"] == USBCameraRow.__name__):
row.pop("classname")
devices.append(
USBCameraListItem(
camera = USBCameraDevice(**row),
parent = self.server
)
)
self.treelist.update()
self.treelist.expandAll()
def makeLogic(self):
# *** When camera list has been closed, re-create the cameralist tree and update filterchains ***
# self.manage_cameras_win.signals.close.connect(self.updateCameraTree) # now put into save_camera_config_slot
# self.manage_cameras_win.signals.close.connect(self.filterchain_group.update) # TODO: use this once fixed
# self.manage_cameras_win.signals.close.connect(self.filterchain_group.read) # TODO: eh.. lets be sure of this .. (are we releasing slots in the LiveThread etc.)
# self.manage_cameras_win.signals.close.connect(self.save_camera_config_slot)
# self.manage_memory_container.signals.save.connect(self.save_memory_conf_slot)
# *** Menu bar connections ***
# the self.filemenu.exit attribute was autogenerated
self.filemenu.exit. triggered.connect(self.exit_slot)
self.filemenu.save_window_layout. triggered.connect(self.save_window_layout_slot)
self.filemenu.load_window_layout. triggered.connect(self.load_window_layout_slot)
"""
self.configmenu.manage_cameras. triggered.connect(
self.manage_cameras_slot)
self.configmenu.memory_usage. triggered.connect(
self.memory_usage_slot)
"""
self.configmenu.configuration_dialog.triggered.connect(self.config_dialog_slot)
self.viewmenu.camera_list. triggered.connect(self.camera_list_slot)
self.aboutmenu.about_program. triggered.connect(self.about_slot)
# *** Connect autogenerated menu calls into autogenerated slot functions ***
for i in range(1, 5):
# gets member function grid_ixi_slot
slot_func = getattr(self, "grid_%ix%i_slot" % (i, i))
# gets member function grid_ixi from self.viewmenu.video_grid
menu_func = getattr(self.viewmenu.video_grid,
"grid_%ix%i" % (i, i))
menu_func.triggered.connect(slot_func)
# i.e., like this : self.viewmenu.video_grid.grid_1x1.triggered.connect(slot_func)
for i in range(1, 5):
# gets member function grid_ixi_slot
slot_func = getattr(self, "playback_grid_%ix%i_slot" % (i, i))
# gets member function grid_ixi from self.viewmenu.video_grid
menu_func = getattr(self.viewmenu.playback_video_grid,
"grid_%ix%i" % (i, i))
menu_func.triggered.connect(slot_func)
# i.e., like this : self.viewmenu.video_grid.grid_1x1.triggered.connect(slot_func)
# *** autogenerated machine vision menu and slots ***
for cl in self.mvision_classes + self.mvision_client_classes:
slot_func_name = cl.name+"_slot"
if hasattr(self, slot_func_name):
getattr(self.mvisionmenu,cl.name).triggered.connect(getattr(self,slot_func_name))
def post(self):
pass
# *** Container handling ***
def serializeContainers(self):
"""Serializes the current view of open video grids (i.e. the view)
returns a dictionary where the keys are complete classnames
each value corresponds to a list of containers of the class described by the key
each serialized container looks like this:
::
dic={
"kwargs" : {}, # parameters that we're used to instantiate this class
}
A concrete example:
::
{'valkka.live.container.grid.VideoContainerNxM': [
{ # individual serialized container
'child_class': <class 'valkka.live.container.video.VideoContainer'>,
'child_pars': [{'device_id': -1}],
'geom': (604, 0, 300, 300),
'm_dim': 1,
'n_dim': 1,
'n_xscreen': 0,
'title': 'Video Grid'
},
...
]
}
- TODO: this stuff should be moved to the db .. ? Or just keep using files..?
- Different row types:
VideoContainerNxM : columns: child_class, child_pars, geom, etc.., LAYOUT_ID
PlayVideoContainerNxM : .., LAYOUT_ID
CameraListWindow : .., LAYOUT_ID
- LAYOUT_ID identifies to which layout they belong
"""
"""
container_list = [] # list of instances of classes in valkka.live.container, e.g. valkka.live.container.grid.VideoContainerNxM, etc.
for container in self.containers_grid:
# these are of the type valkka.live.container.grid.VideoContainerNxM
print("gui: serialize containers : container=", pformat(container))
container_list.append(container.serialize())
# TODO: serialize self.containers_playback
# classnames compatible with local namespace
return {
"valkka.live.container.grid.VideoContainerNxM" : container_list
}
"""
singleton.data_model.layout_collection.clear()
container_list = []
for container in self.containers_grid:
ser = container.serialize()
# print(ser)
# {'title': 'Video Grid', 'n_xscreen': 0, 'child_class': <class 'valkka.live.container.video.VideoContainer'>,
# 'child_pars': [{'device_id': -1}, {'device_id': -1}, {'device_id': -1}, {'device_id': -1}], 'geom': (604, 0, 300, 300), 'n_dim': 2, 'm_dim': 2}
# singleton.data_model.layout_collection.new(VideoContainerNxMRow, ser) # nopes ..
ser.update({"type":"VideoContainerNxM"})
container_list.append(ser)
for container in self.containers_playback:
ser = container.serialize()
ser.update({"type":"PlayVideoContainerNxM"})
container_list.append(ser)
ser = {"type": "QMainWindow", "geom": getCorrectedGeom(self)}
container_list.append(ser)
if self.camera_list_win.isVisible():
ser = {"type": "CameraListWindow", "geom": getCorrectedGeom(self.camera_list_win)}
container_list.append(ser)
singleton.data_model.layout_collection.new(LayoutContainerRow, {"layout" : container_list})
print(singleton.data_model.layout_collection)
singleton.data_model.layout_collection.save()
def deSerializeContainers(self):
"""Re-creates containers, based on the list saved into layout_collection
This is the inverse of self.serializeContainers
Containers must be closed & self.contiainers etc. list must be cleared before calling this
"""
# glo = globals()
# print("glo>",glo)
singleton.reCacheDevicesById() # singleton.devices_by_id will be used by the containers
try:
row = next(singleton.data_model.layout_collection.get())
except StopIteration:
return
container_list = row["layout"]
# print(">", container_list)
for container_dic in container_list:
t = container_dic.pop("type") # get the type & remove it from the dict
if t == "VideoContainerNxM":
container_dic["child_class"] = nameToClass(container_dic.pop("child_class")) # swap from class name to class instance
container_dic["geom"] = tuple(container_dic["geom"]) # woops.. tuple does not json-serialize, but is changed to list .. so change it back to tuplee
# non-serializable parameters:
dic = {
"parent" : None,
"gpu_handler" : self.gpu_handler, # RootContainers(s) pass this downstream to child containers
"filterchain_group" : self.filterchain_group # RootContainers(s) pass this downstream to child containers
}
container_dic.update(dic)
# now container has the parameters to instantiate the object
print(">", container_dic)
cont = container.VideoContainerNxM(**container_dic) # instantiate container
cont.signals.closing.connect(self.rem_grid_container_slot)
self.containers_grid.append(cont)
if t == "PlayVideoContainerNxM":
container_dic["child_class"] = nameToClass(container_dic.pop("child_class")) # swap from class name to class instance
container_dic["geom"] = tuple(container_dic["geom"]) # woops.. tuple does not json-serialize, but is changed to list .. so change it back to tuplee
# non-serializable parameters:
dic = {
"parent" : None,
"gpu_handler" : self.gpu_handler, # RootContainers(s) pass this downstream to child containers
"filterchain_group" : self.filterchain_group_play,
"valkkafsmanager" : self.valkkafsmanager,
"playback_controller" : self.playback_controller
}
container_dic.update(dic)
# now container has the parameters to instantiate the object
print(">", container_dic)
cont = container.PlayVideoContainerNxM(**container_dic) # instantiate container
cont.signals.closing.connect(self.rem_playback_grid_container_slot)
self.containers_playback.append(cont)
elif t == "QMainWindow":
geom = container_dic["geom"]
self.setGeometry(geom[0], geom[1], geom[2], geom[3])
elif t == "CameraListWindow":
geom = container_dic["geom"]
self.camera_list_win.setVisible(True)
self.camera_list_win.setGeometry(geom[0], geom[1], geom[2], geom[3])
def closeContainers(self):
print("gui: closeContainers: containers_grid =", self.containers_grid)
for container in self.containers_grid:
container.close()
self.containers_grid = []
for container in self.containers_playback:
container.close()
self.containers_playback = []
# *** Multiprocess handling ***
def startProcesses(self):
"""Create and start python multiprocesses
Starting a multiprocess creates a process fork.
In theory, there should be no problem in first starting the multithreading environment and after that perform forks (only the thread requestin the fork is copied), but in practice, all kinds of weird behaviour arises.
Read all about it in here : http://www.linuxprogrammingblog.com/threads-and-fork-think-twice-before-using-them
"""
singleton.process_map = {} # each key is a list of started multiprocesses
# self.process_avail = {} # count instances
singleton.client_process_map = {}
singleton.master_process_map = {}
def span(mvision_classes: list, process_map: dict):
for mvision_class in mvision_classes:
name = mvision_class.name
tag = mvision_class.tag
num = mvision_class.max_instances
if (tag not in process_map):
process_map[tag] = []
# self.process_avail[tag] = num
for n in range(0, num):
print("startProcesses: spanning", tag, n)
# verbose = True
verbose = singleton.mvision_verbose
p = mvision_class(verbose = verbose)
# p.start()
p.go()
process_map[tag].append(p)
span(self.mvision_classes, singleton.process_map)
span(self.mvision_client_classes, singleton.client_process_map)
span(self.mvision_master_classes, singleton.master_process_map)
def closeProcesses(self):
def stop(process_map):
for key in process_map:
for p in process_map[key]:
# p.stop()
p.requestStop()
def wait(process_map):
for key in process_map:
for p in process_map[key]:
p.waitStop()
stop(singleton.process_map)
stop(singleton.client_process_map)
stop(singleton.master_process_map)
wait(singleton.process_map)
wait(singleton.client_process_map)
wait(singleton.master_process_map)
# *** Valkka ***
def openValkka(self):
self.cpu_scheme = CPUScheme()
# singleton.data_model.camera_collection
try:
memory_config = next(singleton.data_model.config_collection.get({"classname" : MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
singleton.data_model.writeDefaultMemoryConfig()
memory_config = default.get_memory_config()
try:
valkkafs_config = next(singleton.data_model.valkkafs_collection.get({"classname" : ValkkaFSConfigRow.__name__}))
except StopIteration:
print(pre, "Using default valkkafs config")
singleton.data_model.writeDefaultValkkaFSConfig()
valkkafs_config = default.get_valkkafs_config()
n_frames = round(memory_config["msbuftime"] * default.fps / 1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores = -1)
self.gpu_handler = GPUHandler(
n_720p = memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p = memory_config["n_1080p"] * n_frames,
n_1440p = memory_config["n_1440p"] * n_frames,
n_4K = memory_config["n_4K"] * n_frames,
msbuftime = memory_config["msbuftime"],
verbose = False,
cpu_scheme = self.cpu_scheme
)
self.livethread = LiveThread(
name = "live_thread",
verbose = False,
affinity = self.cpu_scheme.getLive()
)
self.usbthread = USBDeviceThread(
name = "usb_thread",
verbose = False,
affinity = self.cpu_scheme.getUSB()
)
# see datamodel.row.ValkkaFSConfigRow
blocksize = valkkafs_config["blocksize"]
n_blocks = valkkafs_config["n_blocks"]
fs_flavor = valkkafs_config["fs_flavor"]
record = valkkafs_config["record"]
# TODO: activate this if ValkkaFS changed in config!
if fs_flavor == "file":
partition_uuid = None
else:
partition_uuid = valkkafs_config["partition_uuid"]
create_new_fs = False
if self.valkkafs is None: # first time
create_new_fs = False # try to load initially from disk
else:
print("openValkka: checking ValkkaFS")
create_new_fs = not self.valkkafs.is_same( # has changed, so must recreate
partition_uuid = partition_uuid, # None or a string
blocksize = blocksize * 1024*1024,
n_blocks = n_blocks
)
if create_new_fs: print("openValkka: ValkkaFS changed!")
if not create_new_fs: # let's try to load it
print("openValkka: trying to load ValkkaFS")
try:
self.valkkafs = ValkkaFS.loadFromDirectory(
dirname = singleton.valkkafs_dir.get()
)
except ValkkaFSLoadError as e:
print("openValkka: loading ValkkaFS failed with", e)
create_new_fs = True # no luck, must recreate
if create_new_fs:
print("openValkka: (re)create ValkkaFS")
self.valkkafs = ValkkaFS.newFromDirectory(
dirname = singleton.valkkafs_dir.get(),
blocksize = valkkafs_config["blocksize"] * 1024*1024, # MB
n_blocks = valkkafs_config["n_blocks"],
partition_uuid = partition_uuid,
verbose = True
)
# to keep things consistent..
singleton.data_model.valkkafs_collection.new(
ValkkaFSConfigRow,
{
# "dirname" : default.valkkafs_config["dirname"], # not written to db for the moment
"n_blocks" : default.get_valkkafs_config()["n_blocks"],
"blocksize" : valkkafs_config["blocksize"],
"fs_flavor" : valkkafs_config["fs_flavor"],
"record" : record,
"partition_uuid" : partition_uuid
})
"""
else:
self.valkkafs = None
"""
# if no recording selected, set self.valkkafsmanager = None
self.valkkafsmanager = ValkkaFSManager(
self.valkkafs,
write = record, # True or False
read = record,
cache = record
)
self.playback_controller = PlaybackController(valkkafs_manager = self.valkkafsmanager)
self.filterchain_group = LiveFilterChainGroup(
datamodel = singleton.data_model,
livethread = self.livethread,
usbthread = self.usbthread,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group.read()
if record:
print("openValkka: ValkkaFS **RECORDING ACTIVATED**")
self.filterchain_group.setRecording(RecordType.always, self.valkkafsmanager)
# self.filterchain_group.update() # TODO: use this once fixed
self.filterchain_group_play = PlaybackFilterChainGroup(
datamodel = singleton.data_model,
valkkafsmanager
= self.valkkafsmanager,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group_play.read()
try:
from valkka.mvision import multiprocess
except ImportError:
pass
"""
else:
if self.mvision:
singleton.thread = multiprocess.QValkkaThread()
singleton.thread.start()
"""
def closeValkka(self):
# live => chain => opengl
#self.livethread.close()
# self.usbthread.close()
print("Closing live & usb threads")
self.livethread.requestClose()
self.usbthread.requestClose()
self.livethread.waitClose()
self.usbthread.waitClose()
print("Closing filterchains")
self.filterchain_group.close()
self.filterchain_group_play.close()
print("Closing OpenGLThreads")
self.gpu_handler.close()
self.playback_controller.close()
print("Closing ValkkaFS threads")
self.valkkafsmanager.close()
# print("Closing multiprocessing frontend")
"""
if singleton.thread:
singleton.thread.stop()
"""
def reOpenValkka(self):
print("gui: valkka reinit")
self.wait_window.show()
self.saveWindowLayout()
self.closeContainers()
self.closeValkka()
self.openValkka()
self.loadWindowLayout()
self.wait_window.hide()
# *** slot generators ***
def makeGridSlot(self, n, m):
"""Create a n x m video grid, show it and add it to the list of video containers
"""
def slot_func():
cont = container.VideoContainerNxM(
gpu_handler = self.gpu_handler,
filterchain_group = self.filterchain_group,
n_dim = n,
m_dim = m
)
cont.signals.closing.connect(self.rem_grid_container_slot)
self.containers_grid.append(cont)
self.getMargins()
setattr(self, "grid_%ix%i_slot" % (n, m), slot_func)
def makePlaybackGridSlot(self, n, m):
"""Create a n x m video grid, show it and add it to the list of video containers
"""
def slot_func():
cont = container.PlayVideoContainerNxM(
gpu_handler = self.gpu_handler,
filterchain_group = self.filterchain_group_play,
n_dim = n,
m_dim = m,
valkkafsmanager = self.valkkafsmanager,
playback_controller = self.playback_controller
)
cont.signals.closing.connect(self.rem_playback_grid_container_slot)
self.containers_playback.append(cont)
setattr(self, "playback_grid_%ix%i_slot" % (n, m), slot_func)
def makeMvisionSlot(self, cl):
if cl.auto_menu == False:
return
def slot_func():
if ( (cl.tag in singleton.process_map) and (len(singleton.process_map[cl.tag])>0) ):
cont = container.VideoContainerNxM(
parent = None,
gpu_handler = self.gpu_handler,
filterchain_group = self.filterchain_group,
title = cl.name,
n_dim = 1,
m_dim = 1,
child_class = container.MVisionContainer,
child_class_pars = {
"mvision_class": cl,
# "thread" : singleton.thread,
# "process_map" : singleton.process_map
},
)
cont.signals.closing.connect(self.rem_grid_container_slot)
self.containers_grid.append(cont)
else:
QtWidgets.QMessageBox.about(self,"Enough!","Can't instantiate more detectors of this type (max number is "+str(cl.max_instances)+")")
setattr(self, cl.name+"_slot", slot_func)
def makeMvisionClientSlot(self, cl):
if cl.auto_menu == False:
return
def slot_func():
if ( (cl.tag in singleton.client_process_map) and len(singleton.client_process_map[cl.tag]) > 0 ):
master_tag = cl.master
if singleton.get_avail_master_process(master_tag) is not None:
cont = container.VideoContainerNxM(
parent = None,
gpu_handler = self.gpu_handler,
filterchain_group = self.filterchain_group,
title = cl.name,
n_dim = 1,
m_dim = 1,
child_class = container.MVisionClientContainer,
child_class_pars = {
"mvision_class": cl,
# "thread" : singleton.thread,
# "process_map" : singleton.process_map
},
)
cont.signals.closing.connect(self.rem_grid_container_slot)
self.containers_grid.append(cont)
else:
QtWidgets.QMessageBox.about(self,"Enough!","Can't instantiate more master processes for this detector")
else:
QtWidgets.QMessageBox.about(self,"Enough!","Can't instantiate more detectors of this type (max number is "+str(cl.max_instances)+")")
setattr(self, cl.name+"_slot", slot_func)
# *** SLOTS ***
# container related slots
def rem_grid_container_slot(self, cont):
print("gui: rem_grid_container_slot: removing container:",cont)
print("gui: rem_grid_container_slot: containers:",self.containers_grid)
try:
self.containers_grid.remove(cont)
except ValueError:
print("gui: could not remove container",cont)
print("gui: rem_grid_container_slot: containers now:", pformat(self.containers_grid))
def rem_playback_grid_container_slot(self, cont):
print("gui: rem_playback_grid_container_slot: removing container:",cont)
print("gui: rem_playback_grid_container_slot: containers:",self.containers_playback)
try:
self.containers_playback.remove(cont)
except ValueError:
print("gui: could not remove container",cont)
print("gui: rem_playback_grid_container_slot: containers now:", pformat(self.containers_playback))
# explictly defined slot functions
def exit_slot(self):
self.close()
def config_dialog_slot(self):
self.config_modified = False
self.valkkafs_modified = False
self.config_win.show()
self.manage_cameras_container.choose_first_slot()
def config_modified_slot(self):
self.config_modified = True
def valkkafs_modified_slot(self):
self.config_modified = True
self.valkkafs_modified = True
def camera_list_slot(self):
self.camera_list_win.show()
def config_dialog_close_slot(self):
if (self.config_modified):
self.updateCameraTree()
self.reOpenValkka()
def save_window_layout_slot(self):
self.saveWindowLayout()
def load_window_layout_slot(self):
self.loadWindowLayout()
def about_slot(self):
QtWidgets.QMessageBox.about(self, "About", constant.program_info % (version.get(), version.getValkka()))
def openValkka(self):
self.cpu_scheme = CPUScheme()
# singleton.data_model.camera_collection
try:
memory_config = next(singleton.data_model.config_collection.get({"classname" : MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
singleton.data_model.writeDefaultMemoryConfig()
memory_config = default.get_memory_config()
try:
valkkafs_config = next(singleton.data_model.valkkafs_collection.get({"classname" : ValkkaFSConfigRow.__name__}))
except StopIteration:
print(pre, "Using default valkkafs config")
singleton.data_model.writeDefaultValkkaFSConfig()
valkkafs_config = default.get_valkkafs_config()
n_frames = round(memory_config["msbuftime"] * default.fps / 1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores = -1)
self.gpu_handler = GPUHandler(
n_720p = memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p = memory_config["n_1080p"] * n_frames,
n_1440p = memory_config["n_1440p"] * n_frames,
n_4K = memory_config["n_4K"] * n_frames,
msbuftime = memory_config["msbuftime"],
verbose = False,
cpu_scheme = self.cpu_scheme
)
self.livethread = LiveThread(
name = "live_thread",
verbose = False,
affinity = self.cpu_scheme.getLive()
)
self.usbthread = USBDeviceThread(
name = "usb_thread",
verbose = False,
affinity = self.cpu_scheme.getUSB()
)
# see datamodel.row.ValkkaFSConfigRow
blocksize = valkkafs_config["blocksize"]
n_blocks = valkkafs_config["n_blocks"]
fs_flavor = valkkafs_config["fs_flavor"]
record = valkkafs_config["record"]
# TODO: activate this if ValkkaFS changed in config!
if fs_flavor == "file":
partition_uuid = None
else:
partition_uuid = valkkafs_config["partition_uuid"]
create_new_fs = False
if self.valkkafs is None: # first time
create_new_fs = False # try to load initially from disk
else:
print("openValkka: checking ValkkaFS")
create_new_fs = not self.valkkafs.is_same( # has changed, so must recreate
partition_uuid = partition_uuid, # None or a string
blocksize = blocksize * 1024*1024,
n_blocks = n_blocks
)
if create_new_fs: print("openValkka: ValkkaFS changed!")
if not create_new_fs: # let's try to load it
print("openValkka: trying to load ValkkaFS")
try:
self.valkkafs = ValkkaFS.loadFromDirectory(
dirname = singleton.valkkafs_dir.get()
)
except ValkkaFSLoadError as e:
print("openValkka: loading ValkkaFS failed with", e)
create_new_fs = True # no luck, must recreate
if create_new_fs:
print("openValkka: (re)create ValkkaFS")
self.valkkafs = ValkkaFS.newFromDirectory(
dirname = singleton.valkkafs_dir.get(),
blocksize = valkkafs_config["blocksize"] * 1024*1024, # MB
n_blocks = valkkafs_config["n_blocks"],
partition_uuid = partition_uuid,
verbose = True
)
# to keep things consistent..
singleton.data_model.valkkafs_collection.new(
ValkkaFSConfigRow,
{
# "dirname" : default.valkkafs_config["dirname"], # not written to db for the moment
"n_blocks" : default.get_valkkafs_config()["n_blocks"],
"blocksize" : valkkafs_config["blocksize"],
"fs_flavor" : valkkafs_config["fs_flavor"],
"record" : record,
"partition_uuid" : partition_uuid
})
"""
else:
self.valkkafs = None
"""
# if no recording selected, set self.valkkafsmanager = None
self.valkkafsmanager = ValkkaFSManager(
self.valkkafs,
write = record, # True or False
read = record,
cache = record
)
self.playback_controller = PlaybackController(valkkafs_manager = self.valkkafsmanager)
self.filterchain_group = LiveFilterChainGroup(
datamodel = singleton.data_model,
livethread = self.livethread,
usbthread = self.usbthread,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group.read()
if record:
print("openValkka: ValkkaFS **RECORDING ACTIVATED**")
self.filterchain_group.setRecording(RecordType.always, self.valkkafsmanager)
# self.filterchain_group.update() # TODO: use this once fixed
self.filterchain_group_play = PlaybackFilterChainGroup(
datamodel = singleton.data_model,
valkkafsmanager
= self.valkkafsmanager,
gpu_handler = self.gpu_handler,
cpu_scheme = self.cpu_scheme)
self.filterchain_group_play.read()
try:
from valkka.mvision import multiprocess
except ImportError:
pass
"""
def openValkka(self):
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=self.pardic[
"n_720p"], # reserve stacks of YUV video frames for various resolutions
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
# verbose =True,
verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"],
x_connection=":0.0"
# x_connection =":0.1" # works .. video appears on the other xscreen
)
""" # this results in a segfault
print("> starting second OpenGLThread")
# testing: start another OpenGLThread
self.openglthread2=OpenGLThread( # starts frame presenting services
name ="mythread2",
n_720p =self.pardic["n_720p"], # reserve stacks of YUV video frames for various resolutions
n_1080p =self.pardic["n_1080p"],
n_1440p =self.pardic["n_1440p"],
n_4K =self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
# verbose =True,
verbose =False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"],
x_connection =":0.1" # works .. video appears on the other xscreen
)
print("> second OpenGLThread started")
"""
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
a = self.pardic["dec affinity start"]
cw = 0 # widget / window index
cs = 1 # slot / stream count
ntotal = len(self.addresses) * self.pardic["replicate"]
nrow = self.pardic["videos per row"]
ncol = max((ntotal // self.pardic["videos per row"]) + 1, 2)
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
chain = BasicFilterchain( # decoding and branching the stream happens here
livethread=self.livethread,
openglthread=self.openglthread,
address=address,
slot=cs,
affinity=a,
# verbose =True
verbose=False,
msreconnect=10000,
# flush_when_full =True
flush_when_full=False,
# time_correction =TimeCorrectionType_dummy, # Timestamp correction type: TimeCorrectionType_none, TimeCorrectionType_dummy, or TimeCorrectionType_smart (default)
time_correction=TimeCorrectionType_smart,
recv_buffer_size=
0, # Operating system socket ringbuffer size in bytes # 0 means default
# recv_buffer_size =1024*800, # 800 KB
reordering_mstime=
0 # Reordering buffer time for Live555 packets in MILLIseconds # 0 means default
# reordering_mstime =300
)
self.chains.append(
chain
) # important .. otherwise chain will go out of context and get garbage collected ..
for cc in range(0, self.pardic["replicate"]):
if ("no_qt" in self.pardic):
# create our own x-windowses
win_id = self.openglthread.createWindow(show=True)
else:
# *** Choose one of the following sections ***
# (1) Let Valkka create the windows/widget # use this: we get a window with correct parametrization
# win_id =self.openglthread.createWindow(show=False)
# fr =getForeignWidget(self.w, win_id)
if (valkka_xwin == False):
# (2) Let Qt create the widget
fr = TestWidget0(None)
win_id = int(fr.winId())
else:
# """
# (3) Again, let Valkka create the window, but put on top a translucent widget (that catches mouse gestures)
win_id = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(None, win_id, TestWidget0)
fr = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
# """
print(pre, "setupUi: layout index, address : ", cw // nrow,
cw % nrow, address)
# self.lay.addWidget(fr,cw//nrow,cw%nrow) # floating windows instead
container = VideoContainer(None, fr, n=0)
container.getWidget().setGeometry(
self.desktop_handler.getGeometry(
nrow, ncol, cw % nrow, cw // nrow))
container.getWidget().show()
self.videoframes.append(container)
token = self.openglthread.connect(
slot=cs, window_id=win_id
) # present frames with slot number cs at window win_id
tokens.append(token)
cw += 1
cs += 1 # TODO: crash when repeating the same slot number ..?
chain.decodingOn() # tell the decoding thread to start its job
a += 1
class MyGui(QtWidgets.QMainWindow):
debug = False
# debug=True
def __init__(self, pardic, parent=None):
super(MyGui, self).__init__()
self.pardic = pardic
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
self.start_streams()
def initVars(self):
pass
def setupUi(self):
self.setGeometry(QtCore.QRect(100, 100, 800, 800))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay = QtWidgets.QGridLayout(self.w)
self.videoframes = []
self.widget_pairs = []
self.addresses = self.pardic["cams"]
def openValkka(self):
# setValkkaLogLevel(loglevel_debug)
core.setLiveOutPacketBuffermaxSize(95000) # whoa
# check this out:
# http://lists.live555.com/pipermail/live-devel/2013-April/016803.html
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"])
self.livethread2 = LiveThread( # second live thread for sending multicast streams
name="live_thread2",
# verbose=True,
verbose=False,
affinity=self.pardic["live2 affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=self.pardic[
"n_720p"], # reserve stacks of YUV video frames for various resolutions
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
# verbose =True,
verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"])
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
a = self.pardic["dec affinity start"]
mport = self.pardic["mcast_start_port"]
cw = 0 # widget / window index
cs = 1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
chain = MulticastFilterchain( # decoding and branching the stream happens here
incoming_livethread=self.livethread,
outgoing_livethread=self.livethread2,
openglthread=self.openglthread,
address=address,
multicast_address=mcast_address,
multicast_port=mport,
slot=cs,
affinity=a,
# verbose =True
verbose=False,
msreconnect=10000)
self.chains.append(
chain
) # important .. otherwise chain will go out of context and get garbage collected ..
# replicate=self.pardic["replicate"]
replicate = 1
for cc in range(0, replicate):
if ("no_qt" in self.pardic):
# create our own x-windowses
win_id = self.openglthread.createWindow(show=True)
else:
# *** Choose one of the following sections ***
# (1) Let Valkka create the windows/widget # use this: we get a window with correct parametrization
# win_id =self.openglthread.createWindow(show=False)
# fr =getForeignWidget(self.w, win_id)
if (valkka_xwin == False):
# (2) Let Qt create the widget
fr = TestWidget0(self.w)
win_id = int(fr.winId())
else:
# """
# (3) Again, let Valkka create the window, but put on top a translucent widget (that catches mouse gestures)
win_id = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(self.w, win_id, TestWidget0)
fr = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
# """
nrow = self.pardic["videos per row"]
print(pre, "setupUi: layout index, address : ", cw // nrow,
cw % nrow, address)
self.lay.addWidget(fr, cw // nrow, cw % nrow)
# print(pre,"setupUi: layout index, address : ",cw//4,cw%4,address)
# self.lay.addWidget(fr,cw//4,cw%4)
self.videoframes.append(fr)
token = self.openglthread.connect(
slot=cs, window_id=win_id
) # present frames with slot number cs at window win_id
tokens.append(token)
cw += 1
cs += 1 # TODO: crash when repeating the same slot number ..?
chain.decodingOn() # tell the decoding thread to start its job
a += 1
mport += 4
def closeValkka(self):
self.livethread.close()
for chain in self.chains:
chain.close()
self.widget_pairs = []
self.videoframes = []
self.openglthread.close()
self.livethread2.close()
def start_streams(self):
pass
def stop_streams(self):
pass
def closeEvent(self, e):
print(pre, "closeEvent!")
self.stop_streams()
self.closeValkka()
e.accept()
class MyGui(QtWidgets.QMainWindow):
debug=False
# debug=True
def __init__(self):
super(MyGui, self).__init__()
# self.pardic=pardic
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
self.startProcesses()
def initVars(self):
self.messages=[]
self.mode="file"
self.slot_reserved=False
def setupUi(self):
self.setGeometry(QtCore.QRect(100,100,800,800))
self.w=QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay=QtWidgets.QVBoxLayout(self.w)
# divide window into three parts
self.upper =QtWidgets.QWidget(self.w)
self.lower =QtWidgets.QWidget(self.w)
self.lowest =QtWidgets.QWidget(self.w)
self.lay.addWidget(self.upper)
self.lay.addWidget(self.lower)
self.lay.addWidget(self.lowest)
# upper part: license plate list and the video
self.upperlay =QtWidgets.QHBoxLayout(self.upper)
self.msg_list =QtWidgets.QTextEdit(self.upper)
self.video_area =QtWidgets.QWidget(self.upper)
self.video_lay =QtWidgets.QGridLayout(self.video_area)
self.upperlay.addWidget(self.msg_list)
self.upperlay.addWidget(self.video_area)
self.msg_list.setSizePolicy(QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Minimum)
self.video_area.setSizePolicy(QtWidgets.QSizePolicy.Expanding,QtWidgets.QSizePolicy.Expanding)
# lower part: [Open File] [Close Live] [Play] [Stop] [Rewind]
self.lowerlay =QtWidgets.QHBoxLayout(self.lower)
self.open_file_button =QtWidgets.QPushButton("Open File", self.lower)
self.close_file_button=QtWidgets.QPushButton("Close File",self.lower)
self.play_button =QtWidgets.QPushButton("Play",self.lower)
self.stop_button =QtWidgets.QPushButton("Stop",self.lower)
self.rewind_button =QtWidgets.QPushButton("<<", self.lower)
self.lowerlay.addWidget(self.open_file_button)
self.lowerlay.addWidget(self.close_file_button)
self.lowerlay.addWidget(self.play_button)
self.lowerlay.addWidget(self.stop_button)
self.lowerlay.addWidget(self.rewind_button)
self.open_file_button.clicked. connect(self.open_file_button_slot)
self.close_file_button.clicked.connect(self.close_file_button_slot)
self.play_button.clicked. connect(self.play_button_slot)
self.stop_button.clicked. connect(self.stop_button_slot)
self.rewind_button.clicked. connect(self.rewind_button_slot)
# lowest part: some text
self.lowestlay=QtWidgets.QVBoxLayout(self.lowest)
self.infotext =QtWidgets.QLabel("info text",self.lowest)
self.lowestlay.addWidget(self.infotext)
def openValkka(self):
self.livethread=LiveThread( # starts live stream services (using live555)
name ="live_thread",
verbose=False
)
self.filethread=FileThread(
name ="file_thread",
verbose=False
)
self.openglthread=OpenGLThread( # starts frame presenting services
name ="mythread",
n_720p =10,
n_1080p =10,
n_1440p =10,
n_4K =10,
verbose =False,
msbuftime=100,
affinity=-1
)
if (self.openglthread.hadVsync()):
w=QtWidgets.QMessageBox.warning(self,"VBLANK WARNING","Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'")
cc=1
self.chain=ShmemFilterchain1( # decoding and branching the stream happens here
openglthread=self.openglthread,
slot =cc,
# this filterchain creates a shared memory server
shmem_name ="test_studio_file_"+str(cc),
shmem_image_dimensions =(1920//4,1080//4), # Images passed over shmem are quarter of the full-hd reso
shmem_image_interval =1000, # YUV => RGB interpolation to the small size is done each 1000 milliseconds and passed on to the shmem ringbuffer
shmem_ringbuffer_size =10 # Size of the shmem ringbuffer
)
shmem_name, n_buffer, shmem_image_dimensions =self.chain.getShmemPars()
# print(pre,"shmem_name, n_buffer, n_bytes",shmem_name,n_buffer,n_bytes)
self.process=QValkkaMovementDetectorProcess("process_"+str(cc),shmem_name=shmem_name, n_buffer=n_buffer, image_dimensions=shmem_image_dimensions)
self.process.signals.start_move.connect(self.set_moving_slot)
self.process.signals.stop_move. connect(self.set_still_slot)
if (valkka_xwin):
# (1) Let OpenGLThread create the window
self.win_id =self.openglthread.createWindow(show=False)
self.widget_pair =WidgetPair(self.video_area,self.win_id,TestWidget0)
self.video =self.widget_pair.getWidget()
else:
# (2) Let Qt create the window
self.video =QtWidgets.QWidget(self.video_area)
self.win_id =int(self.video.winId())
self.video_lay.addWidget(self.video,0,0)
self.token =self.openglthread.connect(slot=cc,window_id=self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
# finally, give the multiprocesses to a qthread that's reading their message pipe
self.thread =QValkkaThread(processes=[self.process])
def startProcesses(self):
self.process.start()
self.thread.start()
def stopProcesses(self):
print(pre,"stopProcesses :",self.process)
self.process.stop()
self.thread.stop()
print(pre,"QThread stopped")
def closeValkka(self):
self.livethread.close()
self.chain.close()
self.chain =None
self.openglthread.close()
def closeEvent(self,e):
print(pre,"closeEvent!")
self.stopProcesses()
self.closeValkka()
super().closeEvent(e)
# *** slot ****
def open_file_button_slot(self):
if (self.slot_reserved):
self.infotext.setText("Close the current file first")
return
fname=QtWidgets.QFileDialog.getOpenFileName(filter="*.mkv")[0]
if (len(fname)>0):
print(pre,"open_file_button_slot: got filename",fname)
self.chain.setFileContext(fname)
self.filethread.openStream(self.chain.file_ctx)
self.slot_reserved=True
if (self.chain.fileStatusOk()):
self.infotext.setText("Opened file "+fname)
else:
self.infotext.setText("Can't play file "+fname)
else:
self.infotext.setText("No file opened")
def close_file_button_slot(self):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.closeStream(self.chain.file_ctx)
self.slot_reserved=False
self.infotext.setText("Closed file")
def open_live_button_slot(self):
pass
def play_button_slot(self):
if (self.mode=="file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.playStream(self.chain.file_ctx)
else:
pass
def rewind_button_slot(self):
if (self.mode=="file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.chain.file_ctx.seektime_=0;
self.filethread.seekStream(self.chain.file_ctx)
else:
pass
def stop_button_slot(self):
if (self.mode=="file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.stopStream(self.chain.file_ctx)
else:
pass
def set_still_slot(self):
self.infotext.setText("still")
self.messages.append("Movement stopped at ")
if (len(self.messages)>10): self.messages.pop(0)
st=""
for message in self.messages:
st+=message+"\n"
self.msg_list.setText(st)
def set_moving_slot(self):
self.infotext.setText("MOVING")
self.messages.append("Movement started at ")
if (len(self.messages)>10): self.messages.pop(0)
st=""
for message in self.messages:
st+=message+"\n"
self.msg_list.setText(st)
class MyGui(QtWidgets.QMainWindow):
class Frame:
"""Create a frame with text (indicating movement) and a video frame. The video frame is created from a "foreign" window (created by Valkka)
"""
def __init__(self, parent, win_id):
self.widget = QtWidgets.QWidget(parent)
self.lay = QtWidgets.QVBoxLayout(self.widget)
self.text = QtWidgets.QLabel("", self.widget)
self.text_stylesheet = self.text.styleSheet()
# create the foreign widget / normal widget pair
# normal widget of class TestWidget0
self.widget_pair = WidgetPair(self.widget, win_id, TestWidget0)
self.video = self.widget_pair.getWidget()
self.lay.addWidget(self.text)
self.lay.addWidget(self.video)
self.text.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
self.video.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Expanding)
self.set_still()
def setText(self, txt):
self.text.setText(txt)
def set_still(self):
self.setText("still")
self.widget.setStyleSheet(self.text_stylesheet)
def set_moving(self):
self.setText("MOVING")
self.widget.setStyleSheet(
"QLabel {border: 2px; border-style:solid; border-color: red; margin:0 px; padding:0 px; border-radius:8px;}"
)
class NativeFrame:
"""Create a frame with text (indicating movement) and a video frame. The video frame is created by Qt.
"""
def __init__(self, parent):
self.widget = QtWidgets.QWidget(parent)
self.lay = QtWidgets.QVBoxLayout(self.widget)
self.text = QtWidgets.QLabel("", self.widget)
self.text_stylesheet = self.text.styleSheet()
self.video = QtWidgets.QWidget(self.widget)
self.lay.addWidget(self.text)
self.lay.addWidget(self.video)
self.text.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
self.video.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Expanding)
self.set_still()
def getWindowId(self):
return int(self.video.winId())
def setText(self, txt):
self.text.setText(txt)
def set_still(self):
self.setText("still")
self.widget.setStyleSheet(self.text_stylesheet)
def set_moving(self):
self.setText("MOVING")
self.widget.setStyleSheet(
"QLabel {border: 2px; border-style:solid; border-color: red; margin:0 px; padding:0 px; border-radius:8px;}"
)
debug = False
# debug=True
def __init__(self, pardic, parent=None):
super(MyGui, self).__init__()
self.pardic = pardic
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
def initVars(self):
pass
def setupUi(self):
self.setGeometry(QtCore.QRect(100, 100, 800, 800))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay = QtWidgets.QGridLayout(self.w)
self.frames = [] # frames with movement detector alert and video
self.addresses = self.pardic["cams"]
def openValkka(self):
# some constant values
# Images passed over shmem are quarter of the full-hd reso
shmem_image_dimensions = (1920 // 4, 1080 // 4)
# YUV => RGB interpolation to the small size is done each 1000
# milliseconds and passed on to the shmem ringbuffer
shmem_image_interval = 1000
shmem_ringbuffer_size = 10
# the very first thing: create & start multiprocesses
cs = 1
self.processes = []
for address in self.addresses:
shmem_name = "test_studio_" + str(cs)
process = QValkkaMovementDetectorProcess(
"process_" + str(cs),
shmem_name=shmem_name,
n_buffer=shmem_ringbuffer_size,
image_dimensions=shmem_image_dimensions)
self.processes.append(process)
print(self.processes)
# Give the multiprocesses to a qthread that's reading their message
# pipe
self.thread = QValkkaThread(processes=self.processes)
# starts the multiprocesses
self.startProcesses()
# ..so, forks have been done. Now we can spawn threads
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False,
affinity=self.pardic["live affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=self.pardic["n_720p"],
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"])
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
self.frames = []
cs = 1
cc = 0
a = self.pardic["dec affinity start"]
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
# this filterchain creates a shared memory server
# identifies shared memory buffer must be same as in the
# multiprocess
chain = ShmemFilterchain( # decoding and branching the stream happens here
livethread=self.livethread,
openglthread=self.openglthread,
address=address,
slot=cs,
affinity=a,
shmem_name="test_studio_" + str(cs),
shmem_image_dimensions=shmem_image_dimensions,
shmem_image_interval=shmem_image_interval,
shmem_ringbuffer_size=shmem_ringbuffer_size,
msreconnect=10000
# time_correction =TimeCorrectionType_smart # this is the default, no need to specify
)
self.chains.append(chain)
if (valkka_xwin):
win_id = self.openglthread.createWindow(show=False)
frame = self.Frame(self.w, win_id)
else:
frame = self.NativeFrame(self.w)
win_id = frame.getWindowId()
# print(pre,"setupUi: layout index, address : ",cc//4,cc%4,address)
# self.lay.addWidget(frame.widget,cc//4,cc%4)
nrow = self.pardic["videos per row"]
print(pre, "setupUi: layout index, address : ", cc // nrow,
cc % nrow, address)
self.lay.addWidget(frame.widget, cc // nrow, cc % nrow)
self.frames.append(frame)
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
# take corresponding analyzer multiprocess
process = self.processes[cc]
process.createClient(
) # creates the shared memory client at the multiprocess
# connect signals to the nested widget
process.signals.start_move.connect(frame.set_moving)
process.signals.stop_move.connect(frame.set_still)
chain.decodingOn() # tell the decoding thread to start its job
cs += 1 # TODO: crash when repeating the same slot number ..?
a += 1
cc += 1
def startProcesses(self):
self.thread.start()
for p in self.processes:
p.start()
def stopProcesses(self):
for p in self.processes:
p.stop()
print(pre, "stopping QThread")
self.thread.stop()
print(pre, "QThread stopped")
def closeValkka(self):
self.livethread.close()
for chain in self.chains:
chain.close()
self.chains = []
self.widget_pairs = []
self.videoframes = []
self.openglthread.close()
def closeEvent(self, e):
print(pre, "closeEvent!")
self.stopProcesses()
self.closeValkka()
super().closeEvent(e)
class MyGui(QtWidgets.QMainWindow):
def __init__(self, parent=None):
super(MyGui, self).__init__()
self.initVars()
self.initConfigFiles()
self.readDB()
self.generateMethods()
self.setupUi()
self.startProcesses()
self.openValkka()
self.makeLogic()
self.post()
def initVars(self):
self.thread = None # a QThread that reads multiprocess pipes
self.containers = []
self.mvision_containers = []
self.mvision_classes = tools.scanMVisionClasses()
if (len(self.mvision_classes) > 0):
self.mvision = True
else:
self.mvision = False
def initConfigFiles(self):
# self.config_file = tools.getConfigFile("config")
self.version_file = tools.getConfigFile("version")
self.first_start = True
if (tools.hasConfigDir()
): # this indicates that the program has been started earlier
ver = self.readVersionNumber()
print("valkka.live : loading config file for version number")
if ver:
if (ver[0] == version.VERSION_MAJOR
and ver[1] == version.VERSION_MINOR):
self.first_start = False
else: # incorrect version number
print("valkka.live : clearing config")
pass
# .. or handle migration somehow
if self.first_start: # first time program start
# TODO: eula could be shown here
print(pre, "initConfigFiles : first start")
tools.makeConfigDir()
self.saveVersionNumber()
# self.saveConfigFile()
self.save_window_layout()
self.first_start = True
def readDB(self):
"""Datamodel includes the following files: config.dat, devices.dat
"""
self.dm = DataModel(directory=tools.getConfigDir())
if (self.first_start):
print(pre, "readDB : first start")
self.dm.clearAll()
self.dm.saveAll()
# If camera collection is corrupt
if not self.dm.checkCameraCollection():
self.dm.clearCameraCollection()
def generateMethods(self):
"""Generate some member functions
"""
for i in range(1, 5):
# adds member function grid_ixi_slot(self)
self.make_grid_slot(i, i)
for cl in self.mvision_classes:
self.make_mvision_slot(cl)
def QCapsulate(self, widget, name, blocking=False, nude=False):
"""Helper function that encapsulates QWidget into a QMainWindow
"""
class QuickWindow(QtWidgets.QMainWindow):
class Signals(QtCore.QObject):
close = QtCore.Signal()
show = QtCore.Signal()
def __init__(self, blocking=False, parent=None, nude=False):
super().__init__(parent)
self.propagate = True # send signals or not
self.setStyleSheet(style.main_gui)
if (blocking):
self.setWindowModality(QtCore.Qt.ApplicationModal)
if (nude):
# http://doc.qt.io/qt-5/qt.html#WindowType-enum
# TODO: create a widget for a proper splashscreen (omitting X11 and centering manually)
# self.setWindowFlags(QtCore.Qt.Popup) # Qt 5.9+ : setFlags()
# self.setWindowFlags(QtCore.Qt.SplashScreen | QtCore.Qt.WindowStaysOnTopHint)
self.setWindowFlags(QtCore.Qt.Dialog)
self.signals = self.Signals()
def closeEvent(self, e):
if (self.propagate):
self.signals.close.emit()
e.accept()
def showEvent(self, e):
if (self.propagate):
self.signals.show.emit()
e.accept()
def setPropagate(self):
self.propagate = True
def unSetPropagate(self):
self.propagate = False
win = QuickWindow(blocking=blocking, nude=nude)
win.setCentralWidget(widget)
win.setLayout(QtWidgets.QHBoxLayout())
win.setWindowTitle(name)
return win
def QTabCapsulate(self, name, widget_list, blocking=False):
"""Helper function that encapsulates QWidget into a QMainWindow
:param widget_list: List of tuples : [(widget,"name"), (widget,"name"), ..]
"""
class QuickWindow(QtWidgets.QMainWindow):
class Signals(QtCore.QObject):
close = QtCore.Signal()
show = QtCore.Signal()
def __init__(self, blocking=False, parent=None):
super().__init__(parent)
self.propagate = True # send signals or not
self.setStyleSheet(style.main_gui)
if (blocking):
self.setWindowModality(QtCore.Qt.ApplicationModal)
self.signals = self.Signals()
self.tab = QtWidgets.QTabWidget()
self.setCentralWidget(self.tab)
self.setLayout(QtWidgets.QHBoxLayout())
def closeEvent(self, e):
if (self.propagate):
self.signals.close.emit()
e.accept()
def showEvent(self, e):
if (self.propagate):
self.signals.show.emit()
e.accept()
def setPropagate(self):
self.propagate = True
def unSetPropagate(self):
self.propagate = False
win = QuickWindow(blocking=blocking)
win.setWindowTitle(name)
for w in widget_list:
win.tab.addTab(w[0], w[1])
return win
def setupUi(self):
self.setStyleSheet(style.main_gui)
self.setWindowTitle("Valkka Live")
self.setGeometry(QtCore.QRect(100, 100, 500, 500))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.filemenu = FileMenu(parent=self)
self.viewmenu = ViewMenu(parent=self) # grids up to 4x4
self.configmenu = ConfigMenu(parent=self)
if self.mvision:
mvision_elements = []
for cl in self.mvision_classes:
el = QuickMenuElement(title=cl.name, method_name=cl.name)
mvision_elements.append(el)
class MVisionMenu(QuickMenu):
title = "Machine Vision"
elements = mvision_elements
self.mvisionmenu = MVisionMenu(parent=self)
self.aboutmenu = AboutMenu(parent=self)
# create container and their windows
self.manage_cameras_container = self.dm.getDeviceListAndForm(None)
#self.manage_cameras_win = self.QCapsulate(
# self.manage_cameras_container.widget, "Camera Configuration", blocking = True)
self.manage_memory_container = self.dm.getConfigForm()
#self.manage_memory_win = self.QCapsulate(
# self.manage_memory_container.widget, "Memory Configuration", blocking = True)
# self.manage_memory_container.signals.save
# self.manage_cameras_container.getForm().signals.save_record # ListAndForm : has a list and a formset (SlotFormSet). SlotFormSet has the signals
self.manage_memory_container.signals.save.connect(
self.config_modified_slot)
self.manage_cameras_container.getForm().signals.save_record.connect(
self.config_modified_slot)
self.config_win = self.QTabCapsulate(
"Configuration",
[(self.manage_cameras_container.widget, "Camera Configuration"),
(self.manage_memory_container.widget, "Memory Configuration")])
self.config_win.signals.close.connect(self.config_dialog_close_slot)
# when the configuration dialog is reopened, inform the camera configuration form .. this way it can re-check if usb cams are available
self.config_win.signals.show.connect(
self.manage_cameras_container.getForm().show_slot)
self.makeCameraTree()
self.camera_list_win = self.QCapsulate(self.treelist, "Camera List")
# self.camera_list_win.show()
# self.treelist.show()
# self.wait_widget = QtWidgets.QWidget()
# self.wait_lay = QtWidgets.QHBoxLayout(self.wait_widget)
# self.wait_label = QtWidgets.QLabel("Restarting Valkka, please wait ..", self.wait_widget)
self.wait_label = QtWidgets.QLabel("Restarting Valkka, please wait ..")
self.wait_window = self.QCapsulate(self.wait_label, "Wait", nude=True)
# self.wait_window.show()
# self.wait_window = QtWidgets.QMessageBox.information(None, "info","info")
def makeCameraTree(self):
self.root = HeaderListItem()
self.treelist = BasicView(parent=None, root=self.root)
self.updateCameraTree()
def updateCameraTree(self):
self.treelist.reset_()
self.server = ServerListItem(name="Localhost",
ip="127.0.0.1",
parent=self.root)
"""
self.server1 = ServerListItem(
name="First Server", ip="192.168.1.20", parent=self.root)
"""
"""
self.camera1 = RTSPCameraListItem(camera=RTSPCameraDevice(
ip="192.168.1.4", username="******", password="******"), parent=self.server1)
self.camera2 = RTSPCameraListItem(camera=RTSPCameraDevice(
ip="192.168.1.4", username="******", password="******"), parent=self.server1)
"""
devices = []
for row in self.dm.camera_collection.get():
# print(pre, "makeCameraTree : row", row)
if (row["classname"] == DataModel.RTSPCameraRow.__name__):
row.pop("classname")
devices.append(
RTSPCameraListItem(
camera=DataModel.RTSPCameraDevice(**row),
parent=self.server))
elif (row["classname"] == DataModel.USBCameraRow.__name__):
row.pop("classname")
devices.append(
USBCameraListItem(camera=DataModel.USBCameraDevice(**row),
parent=self.server))
self.treelist.update()
self.treelist.expandAll()
def makeLogic(self):
# *** When camera list has been closed, re-create the cameralist tree and update filterchains ***
# self.manage_cameras_win.signals.close.connect(self.updateCameraTree) # now put into save_camera_config_slot
# self.manage_cameras_win.signals.close.connect(self.filterchain_group.update) # TODO: use this once fixed
# self.manage_cameras_win.signals.close.connect(self.filterchain_group.read) # TODO: eh.. lets be sure of this .. (are we releasing slots in the LiveThread etc.)
# self.manage_cameras_win.signals.close.connect(self.save_camera_config_slot)
# self.manage_memory_container.signals.save.connect(self.save_memory_conf_slot)
# *** Menu bar connections ***
# the self.filemenu.exit attribute was autogenerated
self.filemenu.exit.triggered.connect(self.exit_slot)
self.filemenu.save_window_layout.triggered.connect(
self.save_window_layout_slot)
self.filemenu.load_window_layout.triggered.connect(
self.load_window_layout_slot)
"""
self.configmenu.manage_cameras. triggered.connect(
self.manage_cameras_slot)
self.configmenu.memory_usage. triggered.connect(
self.memory_usage_slot)
"""
self.configmenu.configuration_dialog.triggered.connect(
self.config_dialog_slot)
self.viewmenu.camera_list.triggered.connect(self.camera_list_slot)
self.aboutmenu.about_valkka_live.triggered.connect(self.about_slot)
# *** Connect autogenerated menu calls into autogenerated slot functions ***
for i in range(1, 5):
# gets member function grid_ixi_slot
slot_func = getattr(self, "grid_%ix%i_slot" % (i, i))
# gets member function grid_ixi from self.viewmenu.video_grid
menu_func = getattr(self.viewmenu.video_grid,
"grid_%ix%i" % (i, i))
menu_func.triggered.connect(slot_func)
# i.e., like this : self.viewmenu.video_grid.grid_1x1.triggered.connect(slot_func)
# *** autogenerated machine vision menu and slots ***
for cl in self.mvision_classes:
getattr(self.mvisionmenu,
cl.name).triggered.connect(getattr(self,
cl.name + "_slot"))
def post(self):
"""
self.mvision_container = container.VideoContainerNxM(
parent = None,
gpu_handler = self.gpu_handler,
filterchain_group = self.filterchain_group,
title = "MVision",
n_dim = 1,
m_dim = 1,
child_class = container.MVisionContainer,
child_class_pars = mvision
)
"""
def serializeContainers(self):
"""Serializes the current view of open video grids (i.e. the view)
"""
""" each serialized container looks like this:
dic={# these are used when re-instantiating the view
"classname" : self.__class__.__name__,
"kwargs" : {}, # parameters that we're used to instantiate this class
# these parameters are used by deserialize
"x" : self.window.x(),
"y" : self.window.y(),
"width" : self.window.width(),
"height" : self.window.height(),
"streams" : streams
}
"""
container_list = []
mvision_container_list = []
for container in self.containers:
print("gui: serialize containers : container=", container)
container_list.append(container.serialize())
for container in self.mvision_containers:
mvision_container_list.append(container.serialize())
return {
"container_list": container_list,
"mvision_container_list": mvision_container_list
}
"""
def saveConfigFile(self):
configdump = json.dumps({
"containers": self.serializeContainers()
})
f = open(self.config_file, "w")
f.write(configdump)
f.close()
self.saveVersionNumber()
def loadConfigFile(self):
try:
f = open(self.config_file, "r")
except FileNotFoundError:
config = constant.config_skeleton
else:
config = json.loads(f.read())
return config
"""
def saveVersionNumber(self):
f = open(self.version_file, "w")
f.write(version.get())
f.close()
def readVersionNumber(self):
try:
f = open(self.version_file, "r")
st = f.read()
f.close()
vs = []
for s in st.split("."):
vs.append(int(s))
except:
print("valkka.live : could not read version number")
return None
else:
return vs
def startProcesses(self):
"""Create and start python multiprocesses
Starting a multiprocess creates a process fork.
In theory, there should be no problem in first starting the multithreading environment and after that perform forks (only the thread requestin the fork is copied), but in practice, all kinds of weird behaviour arises.
Read all about it in here : http://www.linuxprogrammingblog.com/threads-and-fork-think-twice-before-using-them
"""
self.process_map = {} # each key is a list of started multiprocesses
# self.process_avail = {} # count instances
for mvision_class in self.mvision_classes:
name = mvision_class.name
tag = mvision_class.tag
num = mvision_class.max_instances
if (tag not in self.process_map):
self.process_map[tag] = []
# self.process_avail[tag] = num
for n in range(0, num):
p = mvision_class()
p.start()
self.process_map[tag].append(p)
def closeProcesses(self):
for key in self.process_map:
for p in self.process_map[key]:
p.stop()
def openValkka(self):
self.cpu_scheme = CPUScheme()
# self.dm.camera_collection
try:
memory_config = next(
self.dm.config_collection.get(
{"classname": DataModel.MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
memory_config = default.memory_config
n_frames = round(
memory_config["msbuftime"] * default.fps /
1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores=-1)
self.gpu_handler = GPUHandler(
n_720p=memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p=memory_config["n_1080p"] * n_frames,
n_1440p=memory_config["n_1440p"] * n_frames,
n_4K=memory_config["n_4K"] * n_frames,
msbuftime=memory_config["msbuftime"],
verbose=False,
cpu_scheme=self.cpu_scheme)
self.livethread = LiveThread(name="live_thread",
verbose=False,
affinity=self.cpu_scheme.getLive())
self.usbthread = USBDeviceThread(name="usb_thread",
verbose=False,
affinity=self.cpu_scheme.getUSB())
self.filterchain_group = FilterChainGroup(datamodel=self.dm,
livethread=self.livethread,
usbthread=self.usbthread,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group.read()
# self.filterchain_group.update() # TODO: use this once fixed
try:
from valkka.mvision import multiprocess
except ImportError:
pass
else:
if self.mvision:
self.thread = multiprocess.QValkkaThread()
self.thread.start()
def closeValkka(self):
# live => chain => opengl
self.livethread.close()
self.usbthread.close()
self.filterchain_group.close()
self.gpu_handler.close()
if self.thread:
self.thread.stop()
def reOpenValkka(self):
print("gui: valkka reinit")
self.wait_window.show()
self.save_window_layout("tmplayout")
self.closeContainers()
self.closeValkka()
self.openValkka()
self.load_window_layout("tmplayout")
self.wait_window.hide()
def closeContainers(self):
print("gui: closeContainers: containers=", self.containers)
print("gui: closeContainers: mvision containers=",
self.mvision_containers)
for container in self.containers:
container.close()
for container in self.mvision_containers:
print("gui: closing mvision_container: ", container)
container.close()
self.containers = []
self.mvision_containers = []
def closeEvent(self, e):
print("gui : closeEvent!")
self.closeContainers()
# self.manage_cameras_win.unSetPropagate() # don't send signals .. if you don't do this: close => closeEvent => will trigger self.reOpen
# self.manage_cameras_win.close()
self.camera_list_win.unSetPropagate()
self.camera_list_win.close()
self.config_win.unSetPropagate()
self.config_win.close()
self.closeValkka()
self.dm.close()
self.closeProcesses()
e.accept()
def rem_container_slot(self, cont):
print("gui: rem_container_slot: removing container:", cont)
print("gui: rem_container_slot: containers:", self.containers)
try:
self.containers.remove(cont)
except ValueError:
print("gui: could not remove container", cont)
print("gui: rem_container_slot: containers now:", self.containers)
def rem_mvision_container_slot(self, cont):
print("gui: rem_mvision_container_slot: removing mvision container:",
cont)
print("gui: rem_mvision_container_slot: mvision containers:",
self.mvision_containers)
try:
self.mvision_containers.remove(cont)
except ValueError:
print(
"gui: rem_mvision_container_slot: could not remove container",
cont)
print("gui: rem_mvision_container_slot: mvision containers now:",
self.mvision_containers)
# slot function makers
def make_grid_slot(self, n, m):
"""Create a n x m video grid, show it and add it to the list of video containers
"""
def slot_func():
cont = container.VideoContainerNxM(
gpu_handler=self.gpu_handler,
filterchain_group=self.filterchain_group,
n_dim=n,
m_dim=m)
cont.signals.closing.connect(self.rem_container_slot)
self.containers.append(cont)
setattr(self, "grid_%ix%i_slot" % (n, m), slot_func)
def make_mvision_slot(self, cl):
def slot_func():
if ((cl.tag in self.process_map)
and (len(self.process_map[cl.tag]) > 0)):
cont = container.VideoContainerNxM(
parent=None,
gpu_handler=self.gpu_handler,
filterchain_group=self.filterchain_group,
title=cl.name,
n_dim=1,
m_dim=1,
child_class=container.MVisionContainer,
# serializable parameters (for re-creating this container):
child_class_pars={"mvision_class": cl},
# non-seriazable parameters:
child_class_pars_={
"thread": self.thread,
"process_map": self.process_map
})
cont.signals.closing.connect(self.rem_mvision_container_slot)
self.mvision_containers.append(cont)
else:
QtWidgets.QMessageBox.about(
self, "Enough!",
"Can't instantiate more detectors of this type (max number is "
+ str(cl.max_instances) + ")")
setattr(self, cl.name + "_slot", slot_func)
def save_window_layout(self, filename="layout"):
container_dic = self.serializeContainers()
print(pre, "save_window_layout : container_dic =", container_dic)
# f = open(tools.getConfigFile(filename), "w")
# f.write(json.dumps(container_list))
f = open(tools.getConfigFile(filename), "wb")
f.write(pickle.dumps(container_dic))
f.close()
def load_window_layout(self, filename="layout"):
self.closeContainers()
# f = open(tools.getConfigFile(filename), "r")
# container_list = json.loads(f.read())
f = open(tools.getConfigFile(filename), "rb")
container_dic = pickle.loads(f.read())
f.close()
print("load_window_layout: container_dic: ", container_dic)
namespace = container.__dict__
# devices_by_id = self.dm.getDevicesById({"classname" : DataModel.RTSPCameraRow.__name__})
devices_by_id = self.dm.getDevicesById()
for cont in container_dic["container_list"]:
classname = cont["classname"]
kwargs = cont["kwargs"]
kwargs["gpu_handler"] = self.gpu_handler
kwargs["filterchain_group"] = self.filterchain_group
class_instance = namespace[classname]
container_instance = class_instance(**
kwargs) # create the container
# move it to the right position
container_instance.deSerialize(cont, devices_by_id)
self.containers.append(container_instance)
for cont in container_dic["mvision_container_list"]:
print("\nload_window_layout: mvision:", cont)
# explictly defined slot functions
def exit_slot(self):
self.close()
"""
def manage_cameras_slot(self):
self.manage_cameras_win.show()
def memory_usage_slot(self):
self.manage_memory_win.show()
"""
def config_dialog_slot(self):
self.config_modified = False
self.config_win.show()
self.manage_cameras_container.choose_first_slot()
def config_modified_slot(self):
self.config_modified = True
def camera_list_slot(self):
self.camera_list_win.show()
"""
def save_memory_conf_slot(self):
self.manage_memory_win.close()
self.reOpenValkka()
def save_camera_config_slot(self):
self.updateCameraTree()
self.reOpenValkka()
"""
def config_dialog_close_slot(self):
if (self.config_modified):
self.updateCameraTree()
self.reOpenValkka()
def save_window_layout_slot(self):
self.save_window_layout()
def load_window_layout_slot(self):
self.load_window_layout()
def about_slot(self):
QtWidgets.QMessageBox.about(
self, "About",
constant.program_info % (version.get(), version.getValkka()))
class MyGui(QtWidgets.QMainWindow):
debug=False
# debug=True
def __init__(self,pardic,parent=None):
super(MyGui, self).__init__()
# print(pre,"Qapp=",QtCore.QCoreApplication.instance())
self.pardic=pardic
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
self.start_streams()
def initVars(self):
self.videocontainers = []
self.chains = []
def makeMenus(self):
class FileMenu(QuickMenu):
title="File"
elements=[
QuickMenuElement(title="Add New View"),
QuickMenuElement(title="Exit")
]
self.filemenu=FileMenu(self)
self.filemenu.add_new_view.triggered.connect(self.add_new_view_slot)
self.filemenu.exit.triggered.connect(self.exit_slot)
def add_new_view_slot(self):
print("add new view")
self.videocontainers.append(VideoContainer(self.gpu_handler,self.chains))
def exit_slot(self):
self.close()
def setupUi(self):
self.desktop_handler =DesktopHandler()
print(self.desktop_handler)
self.setGeometry(QtCore.QRect(100,100,800,800))
self.w=QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay=QtWidgets.QGridLayout(self.w)
self.makeMenus()
self.addresses=self.pardic["cams"]
def openValkka(self):
self.livethread=LiveThread( # starts live stream services (using live555)
name ="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"]
)
self.gpu_handler=GPUHandler(self.pardic)
a =self.pardic["dec affinity start"]
cs=1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a>self.pardic["dec affinity stop"]): a=self.pardic["dec affinity start"]
print(pre,"openValkka: setting decoder thread on processor",a)
chain=ManagedFilterchain( # decoding and branching the stream happens here
livethread =self.livethread,
openglthreads
=self.gpu_handler.openglthreads,
address =address,
slot =cs,
affinity =a,
msreconnect =10000,
verbose=True
)
self.chains.append(chain) # important .. otherwise chain will go out of context and get garbage collected ..
cs+=1
a+=1
def closeValkka(self):
self.livethread.close()
for chain in self.chains:
chain.close()
self.chains =[]
self.widget_pairs =[]
self.videoframes =[]
self.gpu_handler.close()
def start_streams(self):
pass
def stop_streams(self):
pass
def closeEvent(self,e):
print(pre,"closeEvent!")
for vc in self.videocontainers:
vc.close()
self.stop_streams()
self.closeValkka()
e.accept()
class FileGUI(QtWidgets.QMainWindow):
"""Test your machine vision mvision_process and its widget with video files
:param mvision_process: QValkkaMultimvision_process-derived class
:param shmem_image_interval: How often the image is interpolated into rgb and passed to the mvision_process (milliseconds)
"""
def __init__(self,
mvision_process,
shmem_image_interval = 1000,
shmem_ringbuffer_size = 10,
shmem_image_dimensions = (1920 // 2, 1080 // 2),
shmem_name="test"):
super().__init__()
assert(issubclass(mvision_process.__class__, QValkkaShmemProcess2))
self.mvision_process = mvision_process
self.shmem_image_interval = shmem_image_interval
self.shmem_ringbuffer_size = shmem_ringbuffer_size
self.shmem_image_dimensions = shmem_image_dimensions
self.shmem_name = shmem_name
self.initVars()
self.setupUi()
self.mvision_widget = self.mvision_process.getWidget()
# self.mvision_widget = QtWidgets.QWidget()
self.mvision_widget.setParent(self.widget)
self.widget_lay.addWidget(self.mvision_widget)
self.openValkka()
def initVars(self):
self.mode = "file"
self.slot_reserved = False
def setupUi(self):
self.setGeometry(QtCore.QRect(100, 100, 800, 800))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay = QtWidgets.QVBoxLayout(self.w)
# return
# divide window into three parts
self.upper = QtWidgets.QWidget(self.w)
self.lower = QtWidgets.QWidget(self.w)
self.lowest = QtWidgets.QWidget(self.w)
self.lay.addWidget(self.upper)
self.lay.addWidget(self.lower)
self.lay.addWidget(self.lowest)
# upper part: detectors widget and the video itself
self.upperlay = QtWidgets.QHBoxLayout(self.upper)
# self.widget =QtWidgets.QTextEdit(self.upper)
self.widget =QtWidgets.QWidget(self.upper)
self.widget_lay = QtWidgets.QVBoxLayout(self.widget)
# self.widget = self.mvision_process.getWidget()
# self.widget.setParent(self.upper)
self.video_area = QtWidgets.QWidget(self.upper)
self.video_lay = QtWidgets.QGridLayout(self.video_area)
self.upperlay.addWidget(self.widget)
self.upperlay.addWidget(self.video_area)
self.widget.setSizePolicy(
QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
self.video_area.setSizePolicy(
QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Expanding)
# lower part: [Open File] [Close Live] [Play] [Stop] [Rewind]
self.lowerlay = QtWidgets.QHBoxLayout(self.lower)
self.open_file_button = QtWidgets.QPushButton("Open File", self.lower)
self.close_file_button = QtWidgets.QPushButton(
"Close File", self.lower)
self.play_button = QtWidgets.QPushButton("Play", self.lower)
self.stop_button = QtWidgets.QPushButton("Stop", self.lower)
self.rewind_button = QtWidgets.QPushButton("<<", self.lower)
self.lowerlay.addWidget(self.open_file_button)
self.lowerlay.addWidget(self.close_file_button)
self.lowerlay.addWidget(self.play_button)
self.lowerlay.addWidget(self.stop_button)
self.lowerlay.addWidget(self.rewind_button)
self.open_file_button.clicked. connect(self.open_file_button_slot)
self.close_file_button.clicked.connect(self.close_file_button_slot)
self.play_button.clicked. connect(self.play_button_slot)
self.stop_button.clicked. connect(self.stop_button_slot)
self.rewind_button.clicked. connect(self.rewind_button_slot)
# lowest part: some text
self.lowestlay = QtWidgets.QVBoxLayout(self.lowest)
self.infotext = QtWidgets.QLabel("info text", self.lowest)
self.lowestlay.addWidget(self.infotext)
def openValkka(self):
self.thread = QValkkaThread() # the thread that's watching the mvision_processes
self.thread.start()
self.mvision_process.start()
self.thread.addProcess(self.mvision_process)
# """
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False
)
self.filethread = FileThread(
name="file_thread",
verbose=False
)
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=10,
n_1080p=10,
n_1440p=10,
n_4K=10,
verbose=False,
msbuftime=100,
affinity=-1
)
# this filterchain creates a shared memory server
self.chain = ShmemFilterchain1( # decoding and branching the stream happens here
openglthread = self.openglthread,
slot = 1,
shmem_name = self.shmem_name,
shmem_image_dimensions = self.shmem_image_dimensions,
shmem_image_interval = self.shmem_image_interval,
shmem_ringbuffer_size = self.shmem_ringbuffer_size
)
shmem_name, n_buffer, shmem_image_dimensions = self.chain.getShmemPars()
self.video = QtWidgets.QWidget(self.video_area)
self.win_id = int(self.video.winId())
self.video_lay.addWidget(self.video, 0, 0)
self.token = self.openglthread.connect(slot = 1, window_id = self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
self.mvision_process.activate(
n_buffer = self.shmem_ringbuffer_size,
image_dimensions = self.shmem_image_dimensions,
shmem_name = self.shmem_name
)
def closeValkka(self):
# """
self.livethread.close()
self.chain.close()
self.chain = None
self.openglthread.close()
# """
print(self.mvision_process)
self.thread.stop()
def closeEvent(self, e):
print(pre, "closeEvent!")
self.closeValkka()
super().closeEvent(e)
# *** slot ****
def open_file_button_slot(self):
if (self.slot_reserved):
self.infotext.setText("Close the current file first")
return
fname = QtWidgets.QFileDialog.getOpenFileName(filter="*.mkv")[0]
if (len(fname) > 0):
print(pre, "open_file_button_slot: got filename", fname)
self.chain.setFileContext(fname)
self.filethread.openStream(self.chain.file_ctx)
self.slot_reserved = True
if (self.chain.fileStatusOk()):
self.infotext.setText("Opened file " + fname)
else:
self.infotext.setText("Can't play file " + fname)
else:
self.infotext.setText("No file opened")
def close_file_button_slot(self):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.closeStream(self.chain.file_ctx)
self.slot_reserved = False
self.infotext.setText("Closed file")
def open_live_button_slot(self):
pass
def play_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.playStream(self.chain.file_ctx)
else:
pass
def rewind_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.chain.file_ctx.seektime_ = 0
self.filethread.seekStream(self.chain.file_ctx)
else:
pass
def stop_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.stopStream(self.chain.file_ctx)
else:
pass
def set_bounding_boxes_slot(self, bbox_list):
self.openglthread.core.clearObjectsCall(self.token)
for bbox in bbox_list:
self.openglthread.core.addRectangleCall(self.token, bbox[0], bbox[1], bbox[2], bbox[3]) # left, right, top, bottom
def openValkka(self):
self.cpu_scheme = CPUScheme()
# singleton.data_model.camera_collection
try:
memory_config = next(
singleton.data_model.config_collection.get(
{"classname": MemoryConfigRow.__name__}))
except StopIteration:
print(pre, "Using default mem config")
singleton.data_model.writeDefaultMemoryConfig()
memory_config = default.get_memory_config()
try:
valkkafs_config = next(
singleton.data_model.valkkafs_collection.get(
{"classname": ValkkaFSConfigRow.__name__}))
except StopIteration:
print(pre, "Using default valkkafs config")
singleton.data_model.writeDefaultValkkaFSConfig()
valkkafs_config = default.get_valkkafs_config()
n_frames = round(
memory_config["msbuftime"] * default.fps /
1000.) # accumulated frames per buffering time = n_frames
if (memory_config["bind"]):
self.cpu_scheme = CPUScheme()
else:
self.cpu_scheme = CPUScheme(n_cores=-1)
self.gpu_handler = GPUHandler(
n_720p=memory_config["n_720p"] * n_frames, # n_cameras * n_frames
n_1080p=memory_config["n_1080p"] * n_frames,
n_1440p=memory_config["n_1440p"] * n_frames,
n_4K=memory_config["n_4K"] * n_frames,
msbuftime=memory_config["msbuftime"],
verbose=False,
cpu_scheme=self.cpu_scheme)
self.livethread = LiveThread(name="live_thread",
verbose=False,
affinity=self.cpu_scheme.getLive())
self.usbthread = USBDeviceThread(name="usb_thread",
verbose=False,
affinity=self.cpu_scheme.getUSB())
# see datamodel.row.ValkkaFSConfigRow
blocksize = valkkafs_config["blocksize"]
n_blocks = valkkafs_config["n_blocks"]
#fs_flavor = valkkafs_config["fs_flavor"]
#record = valkkafs_config["record"]
self.filterchain_group = LiveFilterChainGroup(
datamodel=singleton.data_model,
livethread=self.livethread,
usbthread=self.usbthread,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group.read()
# TODO: RecordType..?
if singleton.use_playback:
print("openValkka: ValkkaFS **PLAYBACK & RECORDING ACTIVATED**")
# ValkkaSingleFSHandler:
# directory handling and valkkafs <-> stream id association
self.valkka_fs_handler = ValkkaSingleFSHandler(
basedir=singleton.valkkafs_dir.get(),
blocksize=blocksize * 1024 * 1024, # MB
n_blocks=n_blocks)
if self.valkkafs_modified:
print("openValkka: removing all recorded streams")
self.valkka_fs_handler.clear()
self.valkka_fs_handler.wipe()
for row in singleton.data_model.camera_collection.get():
_id = row["_id"] # get stream id
slot = row["slot"]
classname = row["classname"]
if classname != "EmptyRow":
# print(">", row)
self.valkka_fs_handler.load(_id)
# ..creates new valkka if doesn't exist
self.valkkafsmanager = ValkkaFSManager(
self.valkka_fs_handler.tolist())
self.valkkafsmanager.start()
#self.filterchain_group.setRecording(RecordType.always, self.valkkafsmanager)# OLD
# self.filterchain_group: source for live stream
# self.filterchain_group_play: sink where the playback/saved stream should
# be sent
self.filterchain_group_play = PlaybackFilterChainGroup(
datamodel=singleton.data_model,
gpu_handler=self.gpu_handler,
cpu_scheme=self.cpu_scheme)
self.filterchain_group_play.read()
# print("openValkka: self.filterchain_group_play: len=", len(self.filterchain_group_play))
# connect live & playback filterchains with the manager
for valkkafs, inputfilter in self.valkkafsmanager.iterateFsInput():
_id = self.valkka_fs_handler.getId(valkkafs)
if _id is None:
print("WARNING: main: could not get id for", valkkafs)
continue
playback_fc = self.filterchain_group_play.get(_id=_id)
if playback_fc is None:
print("WARNING: main: could not find _id", _id,\
"in playback filterchain group")
"""
for chain in self.filterchain_group_play.chains:
print(">>", chain)
for key, getter in chain.iterateGetters():
print(">", key, getter())
"""
continue
live_fc = self.filterchain_group.get(_id=_id)
if live_fc is None:
print("WARNING: main: could not find _id", _id,\
"in live filterchain group")
continue
self.valkkafsmanager.map_(
valkkafs=valkkafs,
# read & cached stream is sent/output'd here:
framefilter=playback_fc.getInputFilter(),
write_slot=live_fc.slot,
read_slot=playback_fc.slot,
_id=_id)
# frames coming from the live stream are sent to
# valkkafsmanager's correct inputfilter
# (there is one corresponding to each valkkafs)
live_fc.connectRecTo(inputfilter, RecordType.always)
# TODO: disconnect at exit..?
# self.filterchain_group.update() # TODO: use this once fixed
self.playback_controller = PlaybackController(
valkkafs_manager=self.valkkafsmanager)
class FileGUI(QtWidgets.QMainWindow):
"""Test your machine vision mvision_process and its widget with video files
:param mvision_process: QValkkaMultimvision_process-derived class
:param shmem_image_interval: How often the image is interpolated into rgb and passed to the mvision_process (milliseconds)
"""
def __init__(self,
mvision_process,
mvision_master_process,
shmem_image_interval=1000,
shmem_ringbuffer_size=10,
shmem_image_dimensions=(1920 // 2, 1080 // 2),
shmem_name="test",
init_filename=None):
super().__init__()
assert (issubclass(mvision_process.__class__, QShmemProcess))
self.mvision_process = mvision_process
self.mvision_master_process = mvision_master_process
# self.mvision_class = mvision_class,
self.shmem_image_interval = shmem_image_interval
self.shmem_ringbuffer_size = shmem_ringbuffer_size
self.shmem_image_dimensions = shmem_image_dimensions
self.shmem_name = shmem_name
self.init_filename = init_filename
self.initVars()
self.setupUi()
self.mvision_widget = self.mvision_process.getWidget()
# self.mvision_widget = QtWidgets.QWidget()
self.mvision_widget.setParent(self.widget)
self.widget_lay.addWidget(self.mvision_widget)
self.mvision_widget.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
self.openValkka()
if len(sys.argv) > 2:
self.open_file_button_slot(fname_=sys.argv[2])
def initVars(self):
self.mode = "file"
self.slot_reserved = False
def setupUi(self):
rec = QtWidgets.QApplication.desktop().screenGeometry()
height = rec.height()
width = rec.width()
self.setGeometry(QtCore.QRect(0, 0, width, height // 2))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay = QtWidgets.QVBoxLayout(self.w)
# return
# divide window into three parts
self.upper = QtWidgets.QWidget(self.w)
self.middle = QtWidgets.QWidget(self.w)
self.lower = QtWidgets.QWidget(self.w)
self.lowest = QtWidgets.QWidget(self.w)
self.lay.addWidget(self.upper)
self.lay.addWidget(self.middle)
self.lay.addWidget(self.lower)
self.lay.addWidget(self.lowest)
# upper part: detectors widget and the video itself
self.upperlay = QtWidgets.QHBoxLayout(self.upper)
# self.widget =QtWidgets.QTextEdit(self.upper)
self.widget = QtWidgets.QWidget(self.upper)
self.widget_lay = QtWidgets.QVBoxLayout(self.widget)
# self.widget = self.mvision_process.getWidget()
# self.widget.setParent(self.upper)
self.video_area = QtWidgets.QWidget(self.upper)
self.video_lay = QtWidgets.QGridLayout(self.video_area)
self.upperlay.addWidget(self.widget)
self.upperlay.addWidget(self.video_area)
self.widget.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
self.video_area.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Expanding)
"""
[------|--------------------------------------]
[Open File] [Close Live] [Play] [Stop] [Rewind]
"""
self.middlelay = QtWidgets.QHBoxLayout(self.middle)
self.slider = QtWidgets.QSlider(QtCore.Qt.Orientation.Horizontal,
self.middle)
self.middlelay.addWidget(self.slider)
self.slider.setTracking(False)
self.lowerlay = QtWidgets.QHBoxLayout(self.lower)
self.open_file_button = QtWidgets.QPushButton("Open File", self.lower)
self.close_file_button = QtWidgets.QPushButton("Close File",
self.lower)
self.play_button = QtWidgets.QPushButton("Play", self.lower)
self.stop_button = QtWidgets.QPushButton("Stop", self.lower)
self.rewind_button = QtWidgets.QPushButton("<<", self.lower)
self.seek_label = QtWidgets.QLabel("<<", self.lower)
self.lowerlay.addWidget(self.open_file_button)
self.lowerlay.addWidget(self.close_file_button)
self.lowerlay.addWidget(self.play_button)
self.lowerlay.addWidget(self.stop_button)
self.lowerlay.addWidget(self.rewind_button)
self.lowerlay.addWidget(self.seek_label)
self.open_file_button.clicked.connect(self.open_file_button_slot)
self.close_file_button.clicked.connect(self.close_file_button_slot)
self.play_button.clicked.connect(self.play_button_slot)
self.stop_button.clicked.connect(self.stop_button_slot)
self.rewind_button.clicked.connect(self.rewind_button_slot)
self.slider.valueChanged.connect(self.slider_slot)
# lowest part: some text
self.lowestlay = QtWidgets.QVBoxLayout(self.lowest)
self.infotext = QtWidgets.QLabel("info text", self.lowest)
self.lowestlay.addWidget(self.infotext)
def openValkka(self):
self.mvision_process.go()
if self.mvision_master_process is not None:
assert (issubclass(self.mvision_master_process.__class__,
QShmemProcess))
self.mvision_master_process.go()
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False)
self.filethread = FileThread(name="file_thread", verbose=False)
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
n_720p=10,
n_1080p=10,
n_1440p=10,
n_4K=10,
verbose=False,
msbuftime=100,
affinity=-1)
# this filterchain creates a shared memory server
self.chain = ShmemFilterchain1( # decoding and branching the stream happens here
openglthread=self.openglthread,
slot=1,
shmem_name=self.shmem_name,
shmem_image_dimensions=self.shmem_image_dimensions,
shmem_image_interval=self.shmem_image_interval,
shmem_ringbuffer_size=self.shmem_ringbuffer_size)
shmem_name, n_buffer, shmem_image_dimensions = self.chain.getShmemPars(
)
self.video = QtWidgets.QWidget(self.video_area)
if hasattr(self.mvision_process, "analyzer_video_widget_class"):
# the machine vision class may declare what video widget it wants to use to define the machine vision parameters (line crossing, zone intrusion, etc.)
self.analyzer_widget = AnalyzerWidget(
parent=self.video_area,
analyzer_video_widget_class=self.mvision_process.
analyzer_video_widget_class)
else:
self.analyzer_widget = AnalyzerWidget(parent=self.video_area)
self.mvision_process.connectAnalyzerWidget(self.analyzer_widget)
self.analyzer_widget.activate()
self.win_id = int(self.video.winId())
self.video_lay.addWidget(self.video, 0, 0)
self.video_lay.addWidget(self.analyzer_widget, 0, 1)
self.token = self.openglthread.connect(slot=1, window_id=self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
self.mvision_process.activate(
n_buffer=self.shmem_ringbuffer_size,
image_dimensions=self.shmem_image_dimensions,
shmem_name=self.shmem_name)
if self.mvision_master_process:
self.mvision_process.setMasterProcess(self.mvision_master_process)
def closeValkka(self):
if self.mvision_master_process:
self.mvision_process.unsetMasterProcess()
self.mvision_process.disconnectAnalyzerWidget(self.analyzer_widget)
self.livethread.close()
self.chain.close()
self.chain = None
self.openglthread.close()
self.mvision_process.requestStop()
self.mvision_process.waitStop()
if self.mvision_master_process:
self.mvision_master_process.requestStop()
self.mvision_master_process.waitStop()
def showEvent(self, e):
if self.init_filename is not None:
self.open_file_button_slot(fname_=self.init_filename)
e.accept()
def closeEvent(self, e):
print(pre, "closeEvent!")
self.closeValkka()
self.analyzer_widget.close() # wtf do we need this!
# super().closeEvent(e)
e.accept()
# *** slot ****
def open_file_button_slot(self, fname_=None):
if (self.slot_reserved):
self.infotext.setText("Close the current file first")
return
if not fname_:
fname = QtWidgets.QFileDialog.getOpenFileName(filter="*.mkv")[0]
else:
fname = fname_
if (len(fname) > 0):
print(pre, "open_file_button_slot: got filename", fname)
self.chain.setFileContext(fname)
self.filethread.openStream(self.chain.file_ctx)
self.slot_reserved = True
if (self.chain.fileStatusOk()):
self.infotext.setText("Opened file " + fname)
print("Duration:", self.chain.file_ctx.duration)
self.slider.setMinimum(0)
self.slider.setMaximum(self.chain.file_ctx.duration)
else:
self.infotext.setText("Can't play file " + fname)
else:
self.infotext.setText("No file opened")
def close_file_button_slot(self):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.closeStream(self.chain.file_ctx)
self.slot_reserved = False
self.infotext.setText("Closed file")
def open_live_button_slot(self):
pass
def play_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.playStream(self.chain.file_ctx)
else:
pass
def rewind_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.chain.file_ctx.seektime_ = 0
self.filethread.seekStream(self.chain.file_ctx)
else:
pass
def stop_button_slot(self):
if (self.mode == "file"):
if (not self.slot_reserved):
self.infotext.setText("Open a file first")
return
self.filethread.stopStream(self.chain.file_ctx)
else:
pass
def slider_slot(self, v):
print(">", v)
self.chain.file_ctx.seektime_ = v
# TODO: reset analyzer state
self.seek_label.setText(str(v))
self.mvision_process.resetAnalyzerState()
self.filethread.seekStream(self.chain.file_ctx)
def set_bounding_boxes_slot(self, bbox_list):
self.openglthread.core.clearObjectsCall(self.token)
for bbox in bbox_list:
self.openglthread.core.addRectangleCall(
self.token, bbox[0], bbox[1], bbox[2],
bbox[3]) # left, right, top, bottom
class MyGui(QtWidgets.QMainWindow):
class QtFrame:
def __init__(self, parent, win_id):
self.widget = QtWidgets.QWidget(parent)
self.lay = QtWidgets.QVBoxLayout(self.widget)
self.widget_pair = WidgetPair(self.widget, win_id, TestWidget0)
self.video = self.widget_pair.getWidget()
self.lay.addWidget(self.video)
def getWindowId(self):
return int(self.widget.winId())
debug = False
def __init__(self, pardic, parent=None):
super(MyGui, self).__init__()
self.pardic = pardic
self.initVars()
self.setupUI()
if self.debug: return
self.openValkka()
def initVars(self):
pass
def setupUI(self):
self.setWindowTitle('Vision alarm system')
self.resize(1200, 800)
self.menuBar().addMenu('Add Camera')
self.menuBar().addMenu('Remove camera')
self.main = QtWidgets.QWidget(self)
self.setCentralWidget(self.main)
self.w = QtWidgets.QWidget(self)
# self.setCentralWidget(self.w)
self.mainlay = QtWidgets.QVBoxLayout(self.main)
self.mainlay.setSpacing(0)
self.mainlay.setContentsMargins(0, 0, 0, 0)
self.wlay = QtWidgets.QGridLayout(self.w)
self.alert = QtWidgets.QTextEdit()
self.mainlay.addWidget(self.w, 75)
self.mainlay.addWidget(self.alert, 25)
self.frames = [] # i currently don't know what it is used for
self.addresses = self.pardic["cams"]
print(self.addresses)
def openValkka(self):
# RGB Shared memory
shmem_image_dimensions = (1920 // 4, 1080 // 4)
shmem_image_interval = 1000
shmem_rignbuffer_size = 10
# Frag MP4 Shared memory
shmem_buffers = 10
shmem_name = "FragMP4Shmem"
cellsize = 1024 * 1024 * 3
timeout = 1000
cs = 1
cc = 1
self.processes = []
for address in self.addresses:
shmem_name = "camera" + str(cs)
# print("shmem name is {} for process number {} ".format(shmem_name, cc))
process = QValkkaFireDetectorProcess(
"process" + str(cs),
shmem_name=shmem_name,
n_buffer=shmem_rignbuffer_size,
image_dimensions=shmem_image_dimensions)
self.processes.append(process)
cs += 1
print(self.processes)
# Give the multiprocesses to a gthread that's reading their message / thread will be listening to the processes !?
self.thread = QValkkaThread(processes=self.processes)
# start the multiprocesses
self.startProcesses()
# Now that we successfully forked our multiprocesses lets spawn threads
self.livethread = LiveThread(name="live",
verbose=False,
affinity=self.pardic["live_affinity"])
self.openglthread = OpenGLThread(
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=50,
n_1080p=50,
n_1440p=50,
n_4K=50,
verbose=False,
msbuftime=100,
affinity=-1)
# if (self.openglthread.hadVsync()):
# q = QtWidgets.QMessageBox.warning(self,
# "VBLANK WARNING",
# "Syncing to vertical refresh enabled \n THIS WILL DESTROY YOUR FRAMERATE\n disable it using 'export vblank_mode=0'")
tokens = []
self.chains = []
self.frames = []
cs = 1
cc = 0
x = 0
y = 0
cam_count = 0
a = self.pardic["dec affinity start"]
for address in self.addresses:
# Livethread/openglthread are running
print('address :', address)
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
chain = VisionAlarmFilterChain(
# decoding and branching happens here
livethread=self.livethread,
openglthread=self.openglthread,
address=address,
slot=cs,
affinity=a,
shmem_name="camera" + str(cs),
shmem_image_dimensions=shmem_image_dimensions,
shmem_image_interval=shmem_image_interval,
shmem_ringbuffer_size=shmem_rignbuffer_size,
msreconnect=1000,
frag_shmem_buffers=shmem_buffers,
frag_shmem_name=shmem_name,
frag_shmem_cellsize=cellsize,
frag_shmem_timeout=timeout,
)
self.chains.append(chain)
win_id = self.openglthread.createWindow(show=False)
frame = self.QtFrame(self.w, win_id)
# print('setting up layout')
if y > 1:
x = 1
y = 0
self.wlay.addWidget(frame.widget, x, y)
y += 1
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
# take corresponding multiprocess
process = self.processes[cc]
process.createClient(
) # creates the shared memory client at the multiprocess
# connect signals to the nested widget
process.signals.Fire_detected.connect(self.addAlert)
chain.decodingOn() # start the decoding thread
cs += 1
a += 1
cc += 1
# FragMP4 shmem client
client = FragMP4ShmemClient(name=shmem_name,
n_ringbuffer=shmem_buffers,
n_size=cellsize,
mstimeout=timeout,
verbose=False)
def startProcesses(self):
self.thread.start()
for p in self.processes:
p.start()
def stopProcesses(self):
for p in self.processes:
p.stop()
print("stopping QThread")
self.thread.stop()
print("QThread stopped")
def closeValkka(self):
self.livethread.close()
for chain in self.chains:
chain.close()
self.chains = []
self.widget_pairs = []
self.videoframes = []
self.openglthread.close()
def closeEvent(self, e):
print("closeEvent!")
self.stopProcesses()
self.closeValkka()
super().closeEvent()
# Slot
def addAlert(self):
print('inside addAlert ')
self.alert.append('Fire Detected on camera number 1')
pass
def openValkka(self):
# some constant values
# Images passed over shmem are quarter of the full-hd reso
shmem_image_dimensions = (1920 // 4, 1080 // 4)
# YUV => RGB interpolation to the small size is done each 1000
# milliseconds and passed on to the shmem ringbuffer
shmem_image_interval = 1000
shmem_ringbuffer_size = 10
# the very first thing: create & start multiprocesses
cs = 1
self.processes = []
for address in self.addresses:
shmem_name = "test_studio_" + str(cs)
process = QValkkaMovementDetectorProcess(
"process_" + str(cs),
shmem_name=shmem_name,
n_buffer=shmem_ringbuffer_size,
image_dimensions=shmem_image_dimensions)
self.processes.append(process)
print(self.processes)
# Give the multiprocesses to a qthread that's reading their message
# pipe
self.thread = QValkkaThread(processes=self.processes)
# starts the multiprocesses
self.startProcesses()
# ..so, forks have been done. Now we can spawn threads
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False,
affinity=self.pardic["live affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=self.pardic["n_720p"],
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"])
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
self.frames = []
cs = 1
cc = 0
a = self.pardic["dec affinity start"]
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
# this filterchain creates a shared memory server
# identifies shared memory buffer must be same as in the
# multiprocess
chain = ShmemFilterchain( # decoding and branching the stream happens here
livethread=self.livethread,
openglthread=self.openglthread,
address=address,
slot=cs,
affinity=a,
shmem_name="test_studio_" + str(cs),
shmem_image_dimensions=shmem_image_dimensions,
shmem_image_interval=shmem_image_interval,
shmem_ringbuffer_size=shmem_ringbuffer_size,
msreconnect=10000
# time_correction =TimeCorrectionType_smart # this is the default, no need to specify
)
self.chains.append(chain)
if (valkka_xwin):
win_id = self.openglthread.createWindow(show=False)
frame = self.Frame(self.w, win_id)
else:
frame = self.NativeFrame(self.w)
win_id = frame.getWindowId()
# print(pre,"setupUi: layout index, address : ",cc//4,cc%4,address)
# self.lay.addWidget(frame.widget,cc//4,cc%4)
nrow = self.pardic["videos per row"]
print(pre, "setupUi: layout index, address : ", cc // nrow,
cc % nrow, address)
self.lay.addWidget(frame.widget, cc // nrow, cc % nrow)
self.frames.append(frame)
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
# take corresponding analyzer multiprocess
process = self.processes[cc]
process.createClient(
) # creates the shared memory client at the multiprocess
# connect signals to the nested widget
process.signals.start_move.connect(frame.set_moving)
process.signals.stop_move.connect(frame.set_still)
chain.decodingOn() # tell the decoding thread to start its job
cs += 1 # TODO: crash when repeating the same slot number ..?
a += 1
cc += 1
def openValkka(self):
# RGB Shared memory
shmem_image_dimensions = (1920 // 4, 1080 // 4)
shmem_image_interval = 1000
shmem_rignbuffer_size = 10
# Frag MP4 Shared memory
shmem_buffers = 10
shmem_name = "FragMP4Shmem"
cellsize = 1024 * 1024 * 3
timeout = 1000
cs = 1
cc = 1
self.processes = []
for address in self.addresses:
shmem_name = "camera" + str(cs)
# print("shmem name is {} for process number {} ".format(shmem_name, cc))
process = QValkkaFireDetectorProcess(
"process" + str(cs),
shmem_name=shmem_name,
n_buffer=shmem_rignbuffer_size,
image_dimensions=shmem_image_dimensions)
self.processes.append(process)
cs += 1
print(self.processes)
# Give the multiprocesses to a gthread that's reading their message / thread will be listening to the processes !?
self.thread = QValkkaThread(processes=self.processes)
# start the multiprocesses
self.startProcesses()
# Now that we successfully forked our multiprocesses lets spawn threads
self.livethread = LiveThread(name="live",
verbose=False,
affinity=self.pardic["live_affinity"])
self.openglthread = OpenGLThread(
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=50,
n_1080p=50,
n_1440p=50,
n_4K=50,
verbose=False,
msbuftime=100,
affinity=-1)
# if (self.openglthread.hadVsync()):
# q = QtWidgets.QMessageBox.warning(self,
# "VBLANK WARNING",
# "Syncing to vertical refresh enabled \n THIS WILL DESTROY YOUR FRAMERATE\n disable it using 'export vblank_mode=0'")
tokens = []
self.chains = []
self.frames = []
cs = 1
cc = 0
x = 0
y = 0
cam_count = 0
a = self.pardic["dec affinity start"]
for address in self.addresses:
# Livethread/openglthread are running
print('address :', address)
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
chain = VisionAlarmFilterChain(
# decoding and branching happens here
livethread=self.livethread,
openglthread=self.openglthread,
address=address,
slot=cs,
affinity=a,
shmem_name="camera" + str(cs),
shmem_image_dimensions=shmem_image_dimensions,
shmem_image_interval=shmem_image_interval,
shmem_ringbuffer_size=shmem_rignbuffer_size,
msreconnect=1000,
frag_shmem_buffers=shmem_buffers,
frag_shmem_name=shmem_name,
frag_shmem_cellsize=cellsize,
frag_shmem_timeout=timeout,
)
self.chains.append(chain)
win_id = self.openglthread.createWindow(show=False)
frame = self.QtFrame(self.w, win_id)
# print('setting up layout')
if y > 1:
x = 1
y = 0
self.wlay.addWidget(frame.widget, x, y)
y += 1
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
# take corresponding multiprocess
process = self.processes[cc]
process.createClient(
) # creates the shared memory client at the multiprocess
# connect signals to the nested widget
process.signals.Fire_detected.connect(self.addAlert)
chain.decodingOn() # start the decoding thread
cs += 1
a += 1
cc += 1
# FragMP4 shmem client
client = FragMP4ShmemClient(name=shmem_name,
n_ringbuffer=shmem_buffers,
n_size=cellsize,
mstimeout=timeout,
verbose=False)
def openValkka(self):
self.livethread=LiveThread( # starts live stream services (using live555)
name ="live_thread",
verbose=False
)
self.filethread=FileThread(
name ="file_thread",
verbose=False
)
self.openglthread=OpenGLThread( # starts frame presenting services
name ="mythread",
n_720p =10,
n_1080p =10,
n_1440p =10,
n_4K =10,
verbose =False,
msbuftime=100,
affinity=-1
)
if (self.openglthread.hadVsync()):
w=QtWidgets.QMessageBox.warning(self,"VBLANK WARNING","Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'")
cc=1
self.chain=ShmemFilterchain1( # decoding and branching the stream happens here
openglthread=self.openglthread,
slot =cc,
# this filterchain creates a shared memory server
shmem_name ="test_studio_file_"+str(cc),
shmem_image_dimensions =(1920//4,1080//4), # Images passed over shmem are quarter of the full-hd reso
shmem_image_interval =1000, # YUV => RGB interpolation to the small size is done each 1000 milliseconds and passed on to the shmem ringbuffer
shmem_ringbuffer_size =10 # Size of the shmem ringbuffer
)
shmem_name, n_buffer, shmem_image_dimensions =self.chain.getShmemPars()
# print(pre,"shmem_name, n_buffer, n_bytes",shmem_name,n_buffer,n_bytes)
self.process=QValkkaMovementDetectorProcess("process_"+str(cc),shmem_name=shmem_name, n_buffer=n_buffer, image_dimensions=shmem_image_dimensions)
self.process.signals.start_move.connect(self.set_moving_slot)
self.process.signals.stop_move. connect(self.set_still_slot)
if (valkka_xwin):
# (1) Let OpenGLThread create the window
self.win_id =self.openglthread.createWindow(show=False)
self.widget_pair =WidgetPair(self.video_area,self.win_id,TestWidget0)
self.video =self.widget_pair.getWidget()
else:
# (2) Let Qt create the window
self.video =QtWidgets.QWidget(self.video_area)
self.win_id =int(self.video.winId())
self.video_lay.addWidget(self.video,0,0)
self.token =self.openglthread.connect(slot=cc,window_id=self.win_id)
self.chain.decodingOn() # tell the decoding thread to start its job
# finally, give the multiprocesses to a qthread that's reading their message pipe
self.thread =QValkkaThread(processes=[self.process])
class MyGui(QtWidgets.QMainWindow):
debug = False
# debug=True
def __init__(self, pardic, valkkafs, parent=None):
super(MyGui, self).__init__()
self.pardic = pardic
self.valkkafs = valkkafs
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
self.start_streams()
def initVars(self):
pass
def setupUi(self):
self.setGeometry(QtCore.QRect(100, 100, 800, 800))
self.w = QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay = QtWidgets.QGridLayout(self.w)
self.videoframes = []
self.widget_pairs = []
self.addresses = self.pardic["cams"]
# self.rec_window = QtWidgets.QMainWindow(self)
# self.rec_window = QtWidgets.QTabWidget(None)
self.rec_window = MyTabWidget(None)
self.rec_window.setGeometry(QtCore.QRect(50, 50, 800, 800))
self.rec_window.show()
self.rec_video_tab = QtWidgets.QWidget(None)
self.rec_video_lay = QtWidgets.QVBoxLayout(self.rec_video_tab)
self.rec_calendar_tab = QtWidgets.QWidget(None)
self.rec_calendar_lay = QtWidgets.QVBoxLayout(self.rec_calendar_tab)
self.rec_window.addTab(self.rec_video_tab, "Video")
self.rec_window.addTab(self.rec_calendar_tab, "Calendar")
self.rec_video_area = QtWidgets.QWidget(self.rec_video_tab)
self.rec_video_area.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Expanding)
self.rec_video_area_lay = QtWidgets.QGridLayout(self.rec_video_area)
self.rec_video_lay.addWidget(self.rec_video_area)
# timeline
self.timelinewidget = TimeLineWidget(datetime.date.today(),
parent=self.rec_video_area)
# self.timelinewidget.setLogLevel(logging.DEBUG)
self.rec_video_lay.addWidget(self.timelinewidget)
# buttons
self.buttons = QtWidgets.QWidget(self.rec_video_area)
self.buttons_lay = QtWidgets.QHBoxLayout(self.buttons)
self.play_button = QtWidgets.QPushButton("play", self.buttons)
self.stop_button = QtWidgets.QPushButton("stop", self.buttons)
self.zoom_to_fs_button = QtWidgets.QPushButton("limits", self.buttons)
self.buttons_lay.addWidget(self.play_button)
self.buttons_lay.addWidget(self.stop_button)
self.buttons_lay.addWidget(self.zoom_to_fs_button)
self.rec_video_lay.addWidget(self.buttons)
# calendar
self.calendarwidget = CalendarWidget(datetime.date.today(),
parent=self.rec_calendar_tab)
self.rec_calendar_lay.addWidget(self.calendarwidget)
def openValkka(self):
self.valkkafsmanager = ValkkaFSManager(
self.valkkafs,
# read = False, # debugging
# cache = False, # debugging
# write = False # debugging
)
self.playback_controller = PlaybackController(
calendar_widget=self.calendarwidget,
timeline_widget=self.timelinewidget,
valkkafs_manager=self.valkkafsmanager,
play_button=self.play_button,
stop_button=self.stop_button,
zoom_to_fs_button=self.zoom_to_fs_button)
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=self.pardic["n_720p"],
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
verbose=True,
# verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"])
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
a = self.pardic["dec affinity start"]
cw = 0 # widget / window index
cs = 1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
if use_live:
chain_live = ValkkaFSLiveFilterchain( # decoding and branching the stream happens here
valkkafsmanager=self.valkkafsmanager,
id_rec=cs, # identifies the stream in ValkkaFS
livethread=self.livethread,
address=address,
slot=cs,
affinity=a,
# verbose =True
verbose=False,
msreconnect=10000,
# Reordering buffer time for Live555 packets in MILLIseconds # 0 means default
reordering_mstime=0
# reordering_mstime =300
)
rec_slot = cs + 100 # live and rec slot numbers must be kept separated ..
chain_rec = ValkkaFSFileFilterchain( # decoding and branching the stream happens here
valkkafsmanager=self.valkkafsmanager,
id_rec=cs, # identifies the stream in ValkkaFS
slot=rec_slot,
affinity=a,
# verbose =True
verbose=False)
# send yuv to OpenGLThread
if use_live:
chain_live.connect_to_yuv("yuv_to_opengl_" + str(cs),
self.openglthread.getInput())
chain_rec.connect_to_yuv("yuv_to_opengl_" + str(cs),
self.openglthread.getInput())
# important .. otherwise chain will go out of context and get
# garbage collected ..
if use_live: self.chains.append(chain_live)
self.chains.append(chain_rec)
if ("no_qt" in self.pardic):
# create our own x-windowses
win_id = self.openglthread.createWindow(show=True)
win_id_rec = self.openglthread.createWindow(show=True)
else:
# *** Choose one of the following sections ***
# (1) Let Valkka create the windows/widget # use this: we get a window with correct parametrization
# win_id =self.openglthread.createWindow(show=False)
# fr =getForeignWidget(self.w, win_id)
if (valkka_xwin == False):
# (2) Let Qt create the widget
fr = TestWidget0(self.w)
win_id = int(fr.winId())
fr_rec = TestWidget0(self.rec_video_area)
win_id_rec = int(fr_rec.winId())
else:
# """
# (3) Again, let Valkka create the window, but put on top a translucent widget (that catches mouse gestures)
win_id = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(self.w, win_id, TestWidget0)
fr = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
win_id_rec = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(self.rec_video_area, win_id_rec,
TestWidget0)
fr_rec = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
# """
nrow = self.pardic["videos per row"]
print(pre, "setupUi: layout index, address : ", cw // nrow,
cw % nrow, address)
self.lay.addWidget(fr, cw // nrow, cw % nrow)
self.rec_video_area_lay.addWidget(fr_rec, cw // nrow,
cw % nrow)
self.videoframes.append(fr)
self.videoframes.append(fr_rec)
# present frames with slot number cs at window win_id
# rec_slot = cs # debug
print(pre, "setupUi: live:", cs, win_id)
print(pre, "setupUi: rec :", rec_slot, win_id_rec)
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
token = self.openglthread.connect(slot=rec_slot,
window_id=win_id_rec)
tokens.append(token)
cw += 1
cs += 1
if use_live:
chain_live.decodingOn(
) # tell the decoding thread to start its job
chain_rec.decodingOn()
a += 1
def closeValkka(self):
self.livethread.close()
self.valkkafsmanager.close()
for chain in self.chains:
chain.close()
self.chains = []
self.widget_pairs = []
self.videoframes = []
self.openglthread.close()
# time.sleep(5)
def start_streams(self):
pass
def stop_streams(self):
pass
def closeEvent(self, e):
print("\n", pre, "closeEvent!\n")
self.stop_streams()
self.closeValkka()
self.rec_window.forceClose()
# self.rec_window.close()
e.accept()
def openValkka(self):
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"])
self.gpu_handler = GPUHandler(self.pardic)
self.chains = []
a = self.pardic["dec affinity start"]
cw = 0 # widget / window index
cs = 1 # slot / stream count
ntotal = len(self.addresses) * self.pardic["replicate"]
nrow = self.pardic["videos per row"]
ncol = max((ntotal // self.pardic["videos per row"]) + 1, 2)
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
chain = OpenFilterchain( # decoding and branching the stream happens here
livethread=self.livethread,
address=address,
slot=cs,
affinity=a,
# verbose =True
verbose=False,
msreconnect=10000,
# flush_when_full =True
flush_when_full=False,
# time_correction =TimeCorrectionType_dummy, # Timestamp correction type: TimeCorrectionType_none, TimeCorrectionType_dummy, or TimeCorrectionType_smart (default)
time_correction=TimeCorrectionType_smart,
recv_buffer_size=
0, # Operating system socket ringbuffer size in bytes # 0 means default
# recv_buffer_size =1024*800, # 800 KB
reordering_mstime=
0 # Reordering buffer time for Live555 packets in MILLIseconds # 0 means default
# reordering_mstime =300
)
# send stream from all OpenFilterchain to all GPUs
for glthread in self.gpu_handler.openglthreads:
chain.connect(glthread.name, glthread.getInput(
)) # OpenGLThread.getInput() returns the input FrameFilter
self.chains.append(
chain
) # important .. otherwise chain will go out of context and get garbage collected ..
for cc in range(0, self.pardic["replicate"]):
print(pre, "setupUi: layout index, address : ", cw // nrow,
cw % nrow, address)
# self.lay.addWidget(fr,cw//nrow,cw%nrow) # floating windows instead
container = VideoContainer(cs, self.gpu_handler)
container.getWidget().setGeometry(
self.desktop_handler.getGeometry(nrow, ncol, cw % nrow,
cw // nrow))
container.getWidget().show()
self.videoframes.append(container)
cw += 1
cs += 1 # TODO: crash when repeating the same slot number ..?
chain.decodingOn() # tell the decoding thread to start its job
a += 1
def openValkka(self):
self.valkkafsmanager = ValkkaFSManager(
self.valkkafs,
# read = False, # debugging
# cache = False, # debugging
# write = False # debugging
)
self.playback_controller = PlaybackController(
calendar_widget=self.calendarwidget,
timeline_widget=self.timelinewidget,
valkkafs_manager=self.valkkafsmanager,
play_button=self.play_button,
stop_button=self.stop_button,
zoom_to_fs_button=self.zoom_to_fs_button)
self.livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"])
self.openglthread = OpenGLThread( # starts frame presenting services
name="mythread",
# reserve stacks of YUV video frames for various resolutions
n_720p=self.pardic["n_720p"],
n_1080p=self.pardic["n_1080p"],
n_1440p=self.pardic["n_1440p"],
n_4K=self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
verbose=True,
# verbose=False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"])
if (self.openglthread.hadVsync()):
w = QtWidgets.QMessageBox.warning(
self, "VBLANK WARNING",
"Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'"
)
tokens = []
self.chains = []
a = self.pardic["dec affinity start"]
cw = 0 # widget / window index
cs = 1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a > self.pardic["dec affinity stop"]):
a = self.pardic["dec affinity start"]
print(pre, "openValkka: setting decoder thread on processor", a)
if use_live:
chain_live = ValkkaFSLiveFilterchain( # decoding and branching the stream happens here
valkkafsmanager=self.valkkafsmanager,
id_rec=cs, # identifies the stream in ValkkaFS
livethread=self.livethread,
address=address,
slot=cs,
affinity=a,
# verbose =True
verbose=False,
msreconnect=10000,
# Reordering buffer time for Live555 packets in MILLIseconds # 0 means default
reordering_mstime=0
# reordering_mstime =300
)
rec_slot = cs + 100 # live and rec slot numbers must be kept separated ..
chain_rec = ValkkaFSFileFilterchain( # decoding and branching the stream happens here
valkkafsmanager=self.valkkafsmanager,
id_rec=cs, # identifies the stream in ValkkaFS
slot=rec_slot,
affinity=a,
# verbose =True
verbose=False)
# send yuv to OpenGLThread
if use_live:
chain_live.connect_to_yuv("yuv_to_opengl_" + str(cs),
self.openglthread.getInput())
chain_rec.connect_to_yuv("yuv_to_opengl_" + str(cs),
self.openglthread.getInput())
# important .. otherwise chain will go out of context and get
# garbage collected ..
if use_live: self.chains.append(chain_live)
self.chains.append(chain_rec)
if ("no_qt" in self.pardic):
# create our own x-windowses
win_id = self.openglthread.createWindow(show=True)
win_id_rec = self.openglthread.createWindow(show=True)
else:
# *** Choose one of the following sections ***
# (1) Let Valkka create the windows/widget # use this: we get a window with correct parametrization
# win_id =self.openglthread.createWindow(show=False)
# fr =getForeignWidget(self.w, win_id)
if (valkka_xwin == False):
# (2) Let Qt create the widget
fr = TestWidget0(self.w)
win_id = int(fr.winId())
fr_rec = TestWidget0(self.rec_video_area)
win_id_rec = int(fr_rec.winId())
else:
# """
# (3) Again, let Valkka create the window, but put on top a translucent widget (that catches mouse gestures)
win_id = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(self.w, win_id, TestWidget0)
fr = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
win_id_rec = self.openglthread.createWindow(show=False)
widget_pair = WidgetPair(self.rec_video_area, win_id_rec,
TestWidget0)
fr_rec = widget_pair.getWidget()
self.widget_pairs.append(widget_pair)
# """
nrow = self.pardic["videos per row"]
print(pre, "setupUi: layout index, address : ", cw // nrow,
cw % nrow, address)
self.lay.addWidget(fr, cw // nrow, cw % nrow)
self.rec_video_area_lay.addWidget(fr_rec, cw // nrow,
cw % nrow)
self.videoframes.append(fr)
self.videoframes.append(fr_rec)
# present frames with slot number cs at window win_id
# rec_slot = cs # debug
print(pre, "setupUi: live:", cs, win_id)
print(pre, "setupUi: rec :", rec_slot, win_id_rec)
token = self.openglthread.connect(slot=cs, window_id=win_id)
tokens.append(token)
token = self.openglthread.connect(slot=rec_slot,
window_id=win_id_rec)
tokens.append(token)
cw += 1
cs += 1
if use_live:
chain_live.decodingOn(
) # tell the decoding thread to start its job
chain_rec.decodingOn()
a += 1
class MyGui(QtWidgets.QMainWindow):
debug=False
# debug=True
def __init__(self,pardic,parent=None):
super(MyGui, self).__init__()
self.pardic=pardic
self.initVars()
self.setupUi()
if (self.debug):
return
self.openValkka()
self.start_streams()
def initVars(self):
pass
def setupUi(self):
self.setGeometry(QtCore.QRect(100,100,800,800))
self.w=QtWidgets.QWidget(self)
self.setCentralWidget(self.w)
self.lay=QtWidgets.QGridLayout(self.w)
self.videoframes =[]
self.addresses=self.pardic["cams"]
def openValkka(self):
self.livethread=LiveThread( # starts live stream services (using live555)
name ="live_thread",
# verbose=True,
verbose=False,
affinity=self.pardic["live affinity"]
)
# create widgets before starting OpenGLThread and reserving frames
cw=0 # widget / window index
self.win_ids=[]
for address in self.addresses:
for cc in range(0,self.pardic["replicate"]):
fr =TestWidget0(self.w)
win_id =int(fr.winId())
nrow=self.pardic["videos per row"]
print(pre,"setupUi: layout index, address : ",cw//nrow,cw%nrow,address)
self.lay.addWidget(fr,cw//nrow,cw%nrow)
self.videoframes.append(fr)
self.win_ids.append(win_id)
cw+=1
win_iter =iter(self.win_ids)
self.openglthread=OpenGLThread( # starts frame presenting services
name ="mythread",
n_720p =self.pardic["n_720p"], # reserve stacks of YUV video frames for various resolutions
n_1080p =self.pardic["n_1080p"],
n_1440p =self.pardic["n_1440p"],
n_4K =self.pardic["n_4K"],
# naudio =self.pardic["naudio"], # obsolete
# verbose =True,
verbose =False,
msbuftime=self.pardic["msbuftime"],
affinity=self.pardic["gl affinity"]
)
if (self.openglthread.hadVsync()):
w=QtWidgets.QMessageBox.warning(self,"VBLANK WARNING","Syncing to vertical refresh enabled\n THIS WILL DESTROY YOUR FRAMERATE\n Disable it with 'export vblank_mode=0' for nvidia proprietary drivers, use 'export __GL_SYNC_TO_VBLANK=0'")
tokens =[]
self.chains=[]
a =self.pardic["dec affinity start"]
cw=0 # widget / window index
cs=1 # slot / stream count
for address in self.addresses:
# now livethread and openglthread are running
if (a>self.pardic["dec affinity stop"]): a=self.pardic["dec affinity start"]
print(pre,"openValkka: setting decoder thread on processor",a)
chain=BasicFilterchain( # decoding and branching the stream happens here
livethread =self.livethread,
openglthread=self.openglthread,
address =address,
slot =cs,
affinity =a,
# verbose =True
verbose =False,
msreconnect =10000,
# flush_when_full =True
flush_when_full =False,
# time_correction =TimeCorrectionType_dummy, # Timestamp correction type: TimeCorrectionType_none, TimeCorrectionType_dummy, or TimeCorrectionType_smart (default)
# time_correction =TimeCorrectionType_smart,
# # by default, no need to specify
recv_buffer_size =0, # Operating system socket ringbuffer size in bytes # 0 means default
# recv_buffer_size =1024*800, # 800 KB
reordering_mstime =0 # Reordering buffer time for Live555 packets in MILLIseconds # 0 means default
# reordering_mstime =300
)
self.chains.append(chain) # important .. otherwise chain will go out of context and get garbage collected ..
for cc in range(0,self.pardic["replicate"]):
token =self.openglthread.connect(slot=cs,window_id=next(win_iter)) # present frames with slot number cs at window win_id
tokens.append(token)
cw+=1
cs+=1
chain.decodingOn() # tell the decoding thread to start its job
a+=1
def closeValkka(self):
self.livethread.close()
for chain in self.chains:
chain.close()
self.chains =[]
self.widget_pairs =[]
self.videoframes =[]
self.openglthread.close()
def start_streams(self):
pass
def stop_streams(self):
pass
def closeEvent(self,e):
print(pre,"closeEvent!")
self.stop_streams()
self.closeValkka()
e.accept()
"""<rtf>
First, import API level 2:
<rtf>"""
import time
from valkka.api2 import LiveThread, OpenGLThread
from valkka.api2 import BasicFilterchain
"""<rtf>
Instantiating the API level 2 LiveThread starts running the underlying cpp thread:
<rtf>"""
livethread = LiveThread( # starts live stream services (using live555)
name="live_thread",
verbose=False,
affinity=-1)
"""<rtf>
Same goes for OpenGLThread:
<rtf>"""
openglthread = OpenGLThread(
name="glthread",
n_720p=20, # reserve stacks of YUV video frames for various resolutions
n_1080p=20,
n_1440p=0,
n_4K=0,
verbose=False,
msbuftime=100,
affinity=-1)
"""<rtf>
The filterchain and decoder (AVThread) are encapsulated into a single class. Instantiating starts the AVThread (decoding is off by default):
<rtf>"""
chain = BasicFilterchain( # decoding and branching the stream happens here
livethread=livethread,
openglthread=openglthread,
