class MainWindow(QMainWindow):
"""
The main window class
"""
def __init__(self, parent=None):
QMainWindow.__init__(self, parent)
self.ui = uic.loadUi("gui/main_window.ui")
self.timestamp_filename = None
self.video_filename = None
self.media_start_time = None
self.media_end_time = None
self.restart_needed = False
self.timer_period = 100
self.is_full_screen = False
self.media_started_playing = False
self.media_is_playing = False
self.original_geometry = None
self.mute = False
self.timestamp_model = TimestampModel(None, self)
self.proxy_model = QSortFilterProxyModel(self)
self.ui.list_timestamp.setModel(self.timestamp_model)
self.ui.list_timestamp.doubleClicked.connect(
lambda event: self.ui.list_timestamp.indexAt(event.pos()).isValid()
and self.run()
)
self.timer = QTimer()
self.timer.timeout.connect(self.update_ui)
self.timer.timeout.connect(self.timer_handler)
self.timer.start(self.timer_period)
self.vlc_instance = vlc.Instance()
self.media_player = self.vlc_instance.media_player_new()
# if sys.platform == "darwin": # for MacOS
# self.ui.frame_video = QMacCocoaViewContainer(0)
self.ui.frame_video.doubleClicked.connect(self.toggle_full_screen)
self.ui.frame_video.wheel.connect(self.wheel_handler)
self.ui.frame_video.keyPressed.connect(self.key_handler)
# Set up buttons
self.ui.button_run.clicked.connect(self.run)
self.ui.button_timestamp_browse.clicked.connect(
self.browse_timestamp_handler
)
self.ui.button_video_browse.clicked.connect(
self.browse_video_handler
)
self.play_pause_model = ToggleButtonModel(None, self)
self.play_pause_model.setStateMap(
{
True: {
"text": "",
"icon": qta.icon("fa.play", scale_factor=0.7)
},
False: {
"text": "",
"icon": qta.icon("fa.pause", scale_factor=0.7)
}
}
)
self.ui.button_play_pause.setModel(self.play_pause_model)
self.ui.button_play_pause.clicked.connect(self.play_pause)
self.mute_model = ToggleButtonModel(None, self)
self.mute_model.setStateMap(
{
True: {
"text": "",
"icon": qta.icon("fa.volume-up", scale_factor=0.8)
},
False: {
"text": "",
"icon": qta.icon("fa.volume-off", scale_factor=0.8)
}
}
)
self.ui.button_mute_toggle.setModel(self.mute_model)
self.ui.button_mute_toggle.clicked.connect(self.toggle_mute)
self.ui.button_full_screen.setIcon(
qta.icon("ei.fullscreen", scale_factor=0.6)
)
self.ui.button_full_screen.setText("")
self.ui.button_full_screen.clicked.connect(self.toggle_full_screen)
self.ui.button_speed_up.clicked.connect(self.speed_up_handler)
self.ui.button_speed_up.setIcon(
qta.icon("fa.arrow-circle-o-up", scale_factor=0.8)
)
self.ui.button_speed_up.setText("")
self.ui.button_slow_down.clicked.connect(self.slow_down_handler)
self.ui.button_slow_down.setIcon(
qta.icon("fa.arrow-circle-o-down", scale_factor=0.8)
)
self.ui.button_slow_down.setText("")
self.ui.button_mark_start.setIcon(
qta.icon("fa.quote-left", scale_factor=0.7)
)
self.ui.button_mark_start.setText("")
self.ui.button_mark_end.setIcon(
qta.icon("fa.quote-right", scale_factor=0.7)
)
self.ui.button_mark_end.setText("")
self.ui.button_add_entry.clicked.connect(self.add_entry)
self.ui.button_remove_entry.clicked.connect(self.remove_entry)
self.ui.button_mark_start.clicked.connect(
lambda: self.set_mark(start_time=int(
self.media_player.get_position() *
self.media_player.get_media().get_duration()))
)
self.ui.button_mark_end.clicked.connect(
lambda: self.set_mark(end_time=int(
self.media_player.get_position() *
self.media_player.get_media().get_duration()))
)
self.ui.slider_progress.setTracking(False)
self.ui.slider_progress.valueChanged.connect(self.set_media_position)
self.ui.slider_volume.valueChanged.connect(self.set_volume)
self.ui.entry_description.setReadOnly(True)
# Mapper between the table and the entry detail
self.mapper = QDataWidgetMapper()
self.mapper.setSubmitPolicy(QDataWidgetMapper.ManualSubmit)
self.ui.button_save.clicked.connect(self.mapper.submit)
# Set up default volume
self.set_volume(self.ui.slider_volume.value())
self.vlc_events = self.media_player.event_manager()
self.vlc_events.event_attach(
vlc.EventType.MediaPlayerTimeChanged, self.media_time_change_handler
)
# Let our application handle mouse and key input instead of VLC
self.media_player.video_set_mouse_input(False)
self.media_player.video_set_key_input(False)
self.ui.show()
def add_entry(self):
if not self.timestamp_filename:
self._show_error("You haven't chosen a timestamp file yet")
row_num = self.timestamp_model.rowCount()
self.timestamp_model.insertRow(row_num)
start_cell = self.timestamp_model.index(row_num, 0)
end_cell = self.timestamp_model.index(row_num, 1)
self.timestamp_model.setData(start_cell, TimestampDelta.from_string(""))
self.timestamp_model.setData(end_cell, TimestampDelta.from_string(""))
def remove_entry(self):
if not self.timestamp_filename:
self._show_error("You haven't chosen a timestamp file yet")
selected = self.ui.list_timestamp.selectionModel().selectedIndexes()
if len(selected) == 0:
return
self.proxy_model.removeRow(selected[0].row()) and self.mapper.submit()
def set_media_position(self, position):
percentage = position / 10000.0
self.media_player.set_position(percentage)
absolute_position = percentage * \
self.media_player.get_media().get_duration()
if absolute_position > self.media_end_time:
self.media_end_time = -1
def set_mark(self, start_time=None, end_time=None):
if len(self.ui.list_timestamp.selectedIndexes()) == 0:
blankRowIndex = self.timestamp_model.blankRowIndex()
if not blankRowIndex.isValid():
self.add_entry()
else:
index = self.proxy_model.mapFromSource(blankRowIndex)
self.ui.list_timestamp.selectRow(index.row())
selectedIndexes = self.ui.list_timestamp.selectedIndexes()
if start_time:
self.proxy_model.setData(selectedIndexes[0],
TimestampDelta.string_from_int(
start_time))
if end_time:
self.proxy_model.setData(selectedIndexes[1],
TimestampDelta.string_from_int(
end_time))
def update_ui(self):
self.ui.slider_progress.blockSignals(True)
self.ui.slider_progress.setValue(
self.media_player.get_position() * 10000
)
# When the video finishes
self.ui.slider_progress.blockSignals(False)
if self.media_started_playing and \
self.media_player.get_media().get_state() == vlc.State.Ended:
self.play_pause_model.setState(True)
# Apparently we need to reset the media, otherwise the player
# won't play at all
self.media_player.set_media(self.media_player.get_media())
self.set_volume(self.ui.slider_volume.value())
self.media_is_playing = False
self.media_started_playing = False
self.run()
def timer_handler(self):
"""
This is a workaround, because for some reason we can't call set_time()
inside the MediaPlayerTimeChanged handler (as the video just stops
playing)
"""
if self.restart_needed:
self.media_player.set_time(self.media_start_time)
self.restart_needed = False
def key_handler(self, event):
if event.key() == Qt.Key_Escape and self.is_full_screen:
self.toggle_full_screen()
if event.key() == Qt.Key_F:
self.toggle_full_screen()
if event.key() == Qt.Key_Space:
self.play_pause()
def wheel_handler(self, event):
self.modify_volume(1 if event.angleDelta().y() > 0 else -1)
def toggle_mute(self):
self.media_player.audio_set_mute(not self.media_player.audio_get_mute())
self.mute = not self.mute
self.mute_model.setState(not self.mute)
def modify_volume(self, delta_percent):
new_volume = self.media_player.audio_get_volume() + delta_percent
if new_volume < 0:
new_volume = 0
elif new_volume > 40:
new_volume = 40
self.media_player.audio_set_volume(new_volume)
self.ui.slider_volume.setValue(self.media_player.audio_get_volume())
def set_volume(self, new_volume):
self.media_player.audio_set_volume(new_volume)
def speed_up_handler(self):
self.modify_rate(0.1)
def slow_down_handler(self):
self.modify_rate(-0.1)
def modify_rate(self, delta_percent):
new_rate = self.media_player.get_rate() + delta_percent
if new_rate < 0.2 or new_rate > 2.0:
return
self.media_player.set_rate(new_rate)
def media_time_change_handler(self, _):
if self.media_end_time == -1:
return
if self.media_player.get_time() > self.media_end_time:
self.restart_needed = True
def update_slider_highlight(self):
if self.ui.list_timestamp.selectionModel().hasSelection():
selected_row = self.ui.list_timestamp.selectionModel(). \
selectedRows()[0]
self.media_start_time = self.ui.list_timestamp.model().data(
selected_row.model().index(selected_row.row(), 0),
Qt.UserRole
)
self.media_end_time = self.ui.list_timestamp.model().data(
selected_row.model().index(selected_row.row(), 1),
Qt.UserRole
)
duration = self.media_player.get_media().get_duration()
self.media_end_time = self.media_end_time \
if self.media_end_time != 0 else duration
if self.media_start_time > self.media_end_time:
raise ValueError("Start time cannot be later than end time")
if self.media_start_time > duration:
raise ValueError("Start time not within video duration")
if self.media_end_time > duration:
raise ValueError("End time not within video duration")
slider_start_pos = (self.media_start_time / duration) * \
(self.ui.slider_progress.maximum() -
self.ui.slider_progress.minimum())
slider_end_pos = (self.media_end_time / duration) * \
(self.ui.slider_progress.maximum() -
self.ui.slider_progress.minimum())
self.ui.slider_progress.setHighlight(
int(slider_start_pos), int(slider_end_pos)
)
else:
self.media_start_time = 0
self.media_end_time = -1
def run(self):
"""
Execute the loop
"""
if self.timestamp_filename is None:
self._show_error("No timestamp file chosen")
return
if self.video_filename is None:
self._show_error("No video file chosen")
return
try:
self.update_slider_highlight()
self.media_player.play()
self.media_player.set_time(self.media_start_time)
self.media_started_playing = True
self.media_is_playing = True
self.play_pause_model.setState(False)
except Exception as ex:
self._show_error(str(ex))
print(traceback.format_exc())
def play_pause(self):
"""Toggle play/pause status
"""
if not self.media_started_playing:
self.run()
return
if self.media_is_playing:
self.media_player.pause()
else:
self.media_player.play()
self.media_is_playing = not self.media_is_playing
self.play_pause_model.setState(not self.media_is_playing)
def toggle_full_screen(self):
if self.is_full_screen:
# TODO Artifacts still happen some time when exiting full screen
# in X11
self.ui.frame_media.showNormal()
self.ui.frame_media.restoreGeometry(self.original_geometry)
self.ui.frame_media.setParent(self.ui.widget_central)
self.ui.layout_main.addWidget(self.ui.frame_media, 2, 3, 3, 1)
# self.ui.frame_media.ensurePolished()
else:
self.ui.frame_media.setParent(None)
self.ui.frame_media.setWindowFlags(Qt.FramelessWindowHint |
Qt.CustomizeWindowHint)
self.original_geometry = self.ui.frame_media.saveGeometry()
desktop = QApplication.desktop()
rect = desktop.screenGeometry(desktop.screenNumber(QCursor.pos()))
self.ui.frame_media.setGeometry(rect)
self.ui.frame_media.showFullScreen()
self.ui.frame_media.show()
self.ui.frame_video.setFocus()
self.is_full_screen = not self.is_full_screen
def browse_timestamp_handler(self):
"""
Handler when the timestamp browser button is clicked
"""
tmp_name, _ = QFileDialog.getOpenFileName(
self, "Choose Timestamp file", None,
"Timestamp File (*.tmsp);;All Files (*)"
)
if not tmp_name:
return
self.set_timestamp_filename(QDir.toNativeSeparators(tmp_name))
def _sort_model(self):
self.ui.list_timestamp.sortByColumn(0, Qt.AscendingOrder)
def _select_blank_row(self, parent, start, end):
self.ui.list_timestamp.selectRow(start)
def set_timestamp_filename(self, filename):
"""
Set the timestamp file name
"""
if not os.path.isfile(filename):
self._show_error("Cannot access timestamp file " + filename)
return
try:
self.timestamp_model = TimestampModel(filename, self)
self.timestamp_model.timeParseError.connect(
lambda err: self._show_error(err)
)
self.proxy_model.setSortRole(Qt.UserRole)
self.proxy_model.dataChanged.connect(self._sort_model)
self.proxy_model.dataChanged.connect(self.update_slider_highlight)
self.proxy_model.setSourceModel(self.timestamp_model)
self.proxy_model.rowsInserted.connect(self._sort_model)
self.proxy_model.rowsInserted.connect(self._select_blank_row)
self.ui.list_timestamp.setModel(self.proxy_model)
self.timestamp_filename = filename
self.ui.entry_timestamp.setText(self.timestamp_filename)
self.mapper.setModel(self.proxy_model)
self.mapper.addMapping(self.ui.entry_start_time, 0)
self.mapper.addMapping(self.ui.entry_end_time, 1)
self.mapper.addMapping(self.ui.entry_description, 2)
self.ui.list_timestamp.selectionModel().selectionChanged.connect(
self.timestamp_selection_changed)
self._sort_model()
directory = os.path.dirname(self.timestamp_filename)
basename = os.path.basename(self.timestamp_filename)
timestamp_name_without_ext = os.path.splitext(basename)[0]
for file_in_dir in os.listdir(directory):
current_filename = os.path.splitext(file_in_dir)[0]
found_video = (current_filename == timestamp_name_without_ext
and file_in_dir != basename)
if found_video:
found_video_file = os.path.join(directory, file_in_dir)
self.set_video_filename(found_video_file)
break
except ValueError as err:
self._show_error("Timestamp file is invalid")
def timestamp_selection_changed(self, selected, deselected):
if len(selected) > 0:
self.mapper.setCurrentModelIndex(selected.indexes()[0])
self.ui.button_save.setEnabled(True)
self.ui.button_remove_entry.setEnabled(True)
self.ui.entry_start_time.setReadOnly(False)
self.ui.entry_end_time.setReadOnly(False)
self.ui.entry_description.setReadOnly(False)
else:
self.mapper.setCurrentModelIndex(QModelIndex())
self.ui.button_save.setEnabled(False)
self.ui.button_remove_entry.setEnabled(False)
self.ui.entry_start_time.clear()
self.ui.entry_end_time.clear()
self.ui.entry_description.clear()
self.ui.entry_start_time.setReadOnly(True)
self.ui.entry_end_time.setReadOnly(True)
self.ui.entry_description.setReadOnly(True)
def set_video_filename(self, filename):
"""
Set the video filename
"""
if not os.path.isfile(filename):
self._show_error("Cannot access video file " + filename)
return
self.video_filename = filename
media = self.vlc_instance.media_new(self.video_filename)
media.parse()
if not media.get_duration():
self._show_error("Cannot play this media file")
self.media_player.set_media(None)
self.video_filename = None
else:
self.media_player.set_media(media)
if sys.platform.startswith('linux'): # for Linux using the X Server
self.media_player.set_xwindow(self.ui.frame_video.winId())
elif sys.platform == "win32": # for Windows
self.media_player.set_hwnd(self.ui.frame_video.winId())
elif sys.platform == "darwin": # for MacOS
self.media_player.set_nsobject(self.ui.frame_video.winId())
self.ui.entry_video.setText(self.video_filename)
self.media_started_playing = False
self.media_is_playing = False
self.set_volume(self.ui.slider_volume.value())
self.play_pause_model.setState(True)
def browse_video_handler(self):
"""
Handler when the video browse button is clicked
"""
tmp_name, _ = QFileDialog.getOpenFileName(
self, "Choose Video file", None,
"All Files (*)"
)
if not tmp_name:
return
self.set_video_filename(QDir.toNativeSeparators(tmp_name))
def _show_error(self, message, title="Error"):
QMessageBox.warning(self, title, message)
class MainWindow(QMainWindow):
"""
The main window class
"""
def __init__(self, parent=None):
QMainWindow.__init__(self, parent)
self.ui = uic.loadUi("gui/main_window.ui")
self.timestamp_filename = None
self.video_filename = None
self.media_start_time = None
self.media_end_time = None
self.restart_needed = False
self.timer_period = 100
self.is_full_screen = False
self.media_started_playing = False
self.media_is_playing = False
self.original_geometry = None
self.mute = False
self.timestamp_model = TimestampModel(None, self)
self.proxy_model = QSortFilterProxyModel(self)
self.ui.list_timestamp.setModel(self.timestamp_model)
self.ui.list_timestamp.doubleClicked.connect(
lambda event: self.ui.list_timestamp.indexAt(event.pos()).isValid()
and self.run()
)
self.timer = QTimer()
self.timer.timeout.connect(self.update_ui)
self.timer.timeout.connect(self.timer_handler)
self.timer.start(self.timer_period)
self.vlc_instance = vlc.Instance()
self.media_player = self.vlc_instance.media_player_new()
# if sys.platform == "darwin": # for MacOS
# self.ui.frame_video = QMacCocoaViewContainer(0)
self.ui.frame_video.doubleClicked.connect(self.toggle_full_screen)
self.ui.frame_video.wheel.connect(self.wheel_handler)
self.ui.frame_video.keyPressed.connect(self.key_handler)
# Set up Labels:
# self.ui.lblVideoName.
# self.displayed_video_title = bind("self.ui.lblVideoName", "text", str)
self.ui.lblVideoName.setText(self.video_filename)
self.ui.lblVideoSubtitle.setText("")
self.ui.dateTimeEdit.setHidden(True)
self.ui.lblCurrentFrame.setText("")
self.ui.lblTotalFrames.setText("")
self.ui.lblCurrentTime.setText("")
self.ui.lblTotalDuration.setText("")
self.ui.lblFileFPS.setText("")
self.ui.spinBoxFrameJumpMultiplier.value = 1
# Set up buttons
self.ui.button_run.clicked.connect(self.run)
self.ui.button_timestamp_browse.clicked.connect(
self.browse_timestamp_handler
)
self.ui.button_timestamp_create.clicked.connect(
self.create_timestamp_file_handler
)
self.ui.button_video_browse.clicked.connect(
self.browse_video_handler
)
# Set up directional buttons
self.ui.btnSkipLeft.clicked.connect(self.skip_left_handler)
self.ui.btnSkipRight.clicked.connect(self.skip_right_handler)
self.ui.btnLeft.clicked.connect(self.seek_left_handler)
self.ui.btnRight.clicked.connect(self.seek_right_handler)
self.play_pause_model = ToggleButtonModel(None, self)
self.play_pause_model.setStateMap(
{
True: {
"text": "",
"icon": qta.icon("fa.play", scale_factor=0.7)
},
False: {
"text": "",
"icon": qta.icon("fa.pause", scale_factor=0.7)
}
}
)
self.ui.button_play_pause.setModel(self.play_pause_model)
self.ui.button_play_pause.clicked.connect(self.play_pause)
self.mute_model = ToggleButtonModel(None, self)
self.mute_model.setStateMap(
{
True: {
"text": "",
"icon": qta.icon("fa.volume-up", scale_factor=0.8)
},
False: {
"text": "",
"icon": qta.icon("fa.volume-off", scale_factor=0.8)
}
}
)
self.ui.button_mute_toggle.setModel(self.mute_model)
self.ui.button_mute_toggle.clicked.connect(self.toggle_mute)
self.ui.button_full_screen.setIcon(
qta.icon("ei.fullscreen", scale_factor=0.6)
)
self.ui.button_full_screen.setText("")
self.ui.button_full_screen.clicked.connect(self.toggle_full_screen)
self.ui.button_speed_up.clicked.connect(self.speed_up_handler)
self.ui.button_speed_up.setIcon(
qta.icon("fa.arrow-circle-o-up", scale_factor=0.8)
)
self.ui.button_speed_up.setText("")
self.ui.button_slow_down.clicked.connect(self.slow_down_handler)
self.ui.button_slow_down.setIcon(
qta.icon("fa.arrow-circle-o-down", scale_factor=0.8)
)
self.ui.button_slow_down.setText("")
self.ui.button_mark_start.setIcon(
qta.icon("fa.quote-left", scale_factor=0.7)
)
self.ui.button_mark_start.setText("")
self.ui.button_mark_end.setIcon(
qta.icon("fa.quote-right", scale_factor=0.7)
)
self.ui.button_mark_end.setText("")
self.ui.button_add_entry.clicked.connect(self.add_entry)
self.ui.button_remove_entry.clicked.connect(self.remove_entry)
self.ui.button_mark_start.clicked.connect(
lambda: self.set_mark(start_time=int(
self.media_player.get_position() *
self.media_player.get_media().get_duration()))
)
self.ui.button_mark_end.clicked.connect(
lambda: self.set_mark(end_time=int(
self.media_player.get_position() *
self.media_player.get_media().get_duration()))
)
self.ui.slider_progress.setTracking(False)
self.ui.slider_progress.valueChanged.connect(self.set_media_position)
self.ui.slider_volume.valueChanged.connect(self.set_volume)
self.ui.entry_description.setReadOnly(True)
# Mapper between the table and the entry detail
self.mapper = QDataWidgetMapper()
self.mapper.setSubmitPolicy(QDataWidgetMapper.ManualSubmit)
self.ui.button_save.clicked.connect(self.mapper.submit)
# Set up default volume
self.set_volume(self.ui.slider_volume.value())
self.vlc_events = self.media_player.event_manager()
self.vlc_events.event_attach(
vlc.EventType.MediaPlayerTimeChanged, self.media_time_change_handler
)
# Let our application handle mouse and key input instead of VLC
self.media_player.video_set_mouse_input(False)
self.media_player.video_set_key_input(False)
self.ui.show()
def add_entry(self):
if not self.timestamp_filename:
self._show_error("You haven't chosen a timestamp file yet")
row_num = self.timestamp_model.rowCount()
self.timestamp_model.insertRow(row_num)
start_cell = self.timestamp_model.index(row_num, 0)
end_cell = self.timestamp_model.index(row_num, 1)
self.timestamp_model.setData(start_cell, TimestampDelta.from_string(""))
self.timestamp_model.setData(end_cell, TimestampDelta.from_string(""))
def remove_entry(self):
if not self.timestamp_filename:
self._show_error("You haven't chosen a timestamp file yet")
selected = self.ui.list_timestamp.selectionModel().selectedIndexes()
if len(selected) == 0:
return
self.proxy_model.removeRow(selected[0].row()) and self.mapper.submit()
def set_media_position(self, position):
percentage = position / 10000.0
self.media_player.set_position(percentage)
absolute_position = percentage * \
self.media_player.get_media().get_duration()
if absolute_position > self.media_end_time:
self.media_end_time = -1
def set_mark(self, start_time=None, end_time=None):
if len(self.ui.list_timestamp.selectedIndexes()) == 0:
blankRowIndex = self.timestamp_model.blankRowIndex()
if not blankRowIndex.isValid():
self.add_entry()
else:
index = self.proxy_model.mapFromSource(blankRowIndex)
self.ui.list_timestamp.selectRow(index.row())
selectedIndexes = self.ui.list_timestamp.selectedIndexes()
if start_time:
self.proxy_model.setData(selectedIndexes[0],
TimestampDelta.string_from_int(
start_time))
if end_time:
self.proxy_model.setData(selectedIndexes[1],
TimestampDelta.string_from_int(
end_time))
def update_ui(self):
self.ui.slider_progress.blockSignals(True)
self.ui.slider_progress.setValue(
self.media_player.get_position() * 10000
)
#print(self.media_player.get_position() * 10000)
self.update_video_file_play_labels()
# When the video finishes
self.ui.slider_progress.blockSignals(False)
if self.media_started_playing and \
self.media_player.get_media().get_state() == vlc.State.Ended:
self.play_pause_model.setState(True)
# Apparently we need to reset the media, otherwise the player
# won't play at all
self.media_player.set_media(self.media_player.get_media())
self.set_volume(self.ui.slider_volume.value())
self.media_is_playing = False
self.media_started_playing = False
self.run()
def timer_handler(self):
"""
This is a workaround, because for some reason we can't call set_time()
inside the MediaPlayerTimeChanged handler (as the video just stops
playing)
"""
if self.restart_needed:
self.media_player.set_time(self.media_start_time)
self.restart_needed = False
def key_handler(self, event):
if event.key() == Qt.Key_Escape and self.is_full_screen:
self.toggle_full_screen()
if event.key() == Qt.Key_F:
self.toggle_full_screen()
if event.key() == Qt.Key_Space:
self.play_pause()
def wheel_handler(self, event):
self.modify_volume(1 if event.angleDelta().y() > 0 else -1)
def toggle_mute(self):
self.media_player.audio_set_mute(not self.media_player.audio_get_mute())
self.mute = not self.mute
self.mute_model.setState(not self.mute)
def modify_volume(self, delta_percent):
new_volume = self.media_player.audio_get_volume() + delta_percent
if new_volume < 0:
new_volume = 0
elif new_volume > 40:
new_volume = 40
self.media_player.audio_set_volume(new_volume)
self.ui.slider_volume.setValue(self.media_player.audio_get_volume())
def set_volume(self, new_volume):
self.media_player.audio_set_volume(new_volume)
def speed_up_handler(self):
self.modify_rate(0.1)
def slow_down_handler(self):
self.modify_rate(-0.1)
def modify_rate(self, delta_percent):
new_rate = self.media_player.get_rate() + delta_percent
if new_rate < 0.2 or new_rate > 2.0:
return
self.media_player.set_rate(new_rate)
def media_time_change_handler(self, _):
if self.media_end_time == -1:
return
if self.media_player.get_time() > self.media_end_time:
self.restart_needed = True
def update_slider_highlight(self):
if self.ui.list_timestamp.selectionModel().hasSelection():
selected_row = self.ui.list_timestamp.selectionModel(). \
selectedRows()[0]
self.media_start_time = self.ui.list_timestamp.model().data(
selected_row.model().index(selected_row.row(), 0),
Qt.UserRole
)
self.media_end_time = self.ui.list_timestamp.model().data(
selected_row.model().index(selected_row.row(), 1),
Qt.UserRole
)
duration = self.media_player.get_media().get_duration()
self.media_end_time = self.media_end_time \
if self.media_end_time != 0 else duration
if self.media_start_time > self.media_end_time:
raise ValueError("Start time cannot be later than end time")
if self.media_start_time > duration:
raise ValueError("Start time not within video duration")
if self.media_end_time > duration:
raise ValueError("End time not within video duration")
slider_start_pos = (self.media_start_time / duration) * \
(self.ui.slider_progress.maximum() -
self.ui.slider_progress.minimum())
slider_end_pos = (self.media_end_time / duration) * \
(self.ui.slider_progress.maximum() -
self.ui.slider_progress.minimum())
self.ui.slider_progress.setHighlight(
int(slider_start_pos), int(slider_end_pos)
)
else:
self.media_start_time = 0
self.media_end_time = -1
def run(self):
"""
Execute the loop
"""
if self.timestamp_filename is None:
self._show_error("No timestamp file chosen")
return
if self.video_filename is None:
self._show_error("No video file chosen")
return
try:
self.update_slider_highlight()
self.media_player.play()
self.media_player.set_time(self.media_start_time)
self.media_started_playing = True
self.media_is_playing = True
self.play_pause_model.setState(False)
except Exception as ex:
self._show_error(str(ex))
print(traceback.format_exc())
def play_pause(self):
"""Toggle play/pause status
"""
if not self.media_started_playing:
self.run()
return
if self.media_is_playing:
self.media_player.pause()
else:
self.media_player.play()
self.media_is_playing = not self.media_is_playing
self.play_pause_model.setState(not self.media_is_playing)
def update_video_file_play_labels(self):
curr_total_fps = self.media_player.get_fps()
curr_total_duration = self.media_player.get_length()
totalNumFrames = int(curr_total_duration * curr_total_fps)
if totalNumFrames > 0:
self.ui.lblTotalFrames.setText(str(totalNumFrames))
else:
self.ui.lblTotalFrames.setText("--")
if curr_total_duration > 0:
self.ui.lblTotalDuration.setText(str(curr_total_duration)) # Gets duration in [ms]
else:
self.ui.lblTotalDuration.setText("--")
# Changing Values: Dynamically updated each time the playhead changes
curr_percent_complete = self.media_player.get_position() # Current percent complete between 0.0 and 1.0
if curr_percent_complete >= 0:
self.ui.lblPlaybackPercent.setText(str(curr_percent_complete))
else:
self.ui.lblPlaybackPercent.setText("--")
curr_frame = int(round(curr_percent_complete * totalNumFrames))
if curr_frame >= 0:
self.ui.lblCurrentFrame.setText(str(curr_frame))
else:
self.ui.lblCurrentFrame.setText("--")
if self.media_player.get_time() >= 0:
self.ui.lblCurrentTime.setText(str(self.media_player.get_time()) + "[ms]") # Gets time in [ms]
else:
self.ui.lblCurrentTime.setText("-- [ms]") # Gets time in [ms]
# Called only when the video file changes:
def update_video_file_labels_on_file_change(self):
if self.video_filename is None:
self.ui.lblVideoName.setText("")
else:
self.ui.lblVideoName.setText(self.video_filename)
# Only updated when the video file is changed:
curr_total_fps = self.media_player.get_fps()
self.ui.lblFileFPS.setText(str(curr_total_fps))
curr_total_duration = self.media_player.get_length()
totalNumFrames = int(curr_total_duration * curr_total_fps)
if totalNumFrames > 0:
self.ui.lblTotalFrames.setText(str(totalNumFrames))
else:
self.ui.lblTotalFrames.setText("--")
if curr_total_duration > 0:
self.ui.lblTotalDuration.setText(str(curr_total_duration)) # Gets duration in [ms]
else:
self.ui.lblTotalDuration.setText("--")
self.update_video_file_play_labels()
def get_frame_multipler(self):
return self.ui.spinBoxFrameJumpMultiplier.value
# def compute_total_number_frames(self):
# self.media_player.get_length()
def seek_left_handler(self):
print('seek: left')
self.seek_frames(-10 * self.get_frame_multipler())
def skip_left_handler(self):
print('skip: left')
self.seek_frames(-1 * self.get_frame_multipler())
def seek_right_handler(self):
print('seek: right')
self.seek_frames(10 * self.get_frame_multipler())
def skip_right_handler(self):
print('skip: right')
self.seek_frames(1 * self.get_frame_multipler())
def seek_frames(self, relativeFrameOffset):
"""Jump a certain number of frames forward or back
"""
if self.video_filename is None:
self._show_error("No video file chosen")
return
# if self.media_end_time == -1:
# return
curr_total_fps = self.media_player.get_fps()
relativeSecondsOffset = relativeFrameOffset / curr_total_fps # Desired offset in seconds
curr_total_duration = self.media_player.get_length()
relative_percent_offset = relativeSecondsOffset / curr_total_duration # percent of the whole that we want to skip
totalNumFrames = int(curr_total_duration * curr_total_fps)
try:
didPauseMedia = False
if self.media_is_playing:
self.media_player.pause()
didPauseMedia = True
newPosition = self.media_player.get_position() + relative_percent_offset
# newTime = int(self.media_player.get_time() + relativeFrameOffset)
# self.update_slider_highlight()
# self.media_player.set_time(newTime)
self.media_player.set_position(newPosition)
if (didPauseMedia):
self.media_player.play()
# else:
# # Otherwise, the media was already paused, we need to very quickly play the media to update the frame with the new time, and then immediately pause it again.
# self.media_player.play()
# self.media_player.pause()
self.media_player.next_frame()
print("Setting media playback time to ", newPosition)
except Exception as ex:
self._show_error(str(ex))
print(traceback.format_exc())
def toggle_full_screen(self):
if self.is_full_screen:
# TODO Artifacts still happen some time when exiting full screen
# in X11
self.ui.frame_media.showNormal()
self.ui.frame_media.restoreGeometry(self.original_geometry)
self.ui.frame_media.setParent(self.ui.widget_central)
self.ui.layout_main.addWidget(self.ui.frame_media, 2, 3, 3, 1)
# self.ui.frame_media.ensurePolished()
else:
self.ui.frame_media.setParent(None)
self.ui.frame_media.setWindowFlags(Qt.FramelessWindowHint |
Qt.CustomizeWindowHint)
self.original_geometry = self.ui.frame_media.saveGeometry()
desktop = QApplication.desktop()
rect = desktop.screenGeometry(desktop.screenNumber(QCursor.pos()))
self.ui.frame_media.setGeometry(rect)
self.ui.frame_media.showFullScreen()
self.ui.frame_media.show()
self.ui.frame_video.setFocus()
self.is_full_screen = not self.is_full_screen
def browse_timestamp_handler(self):
"""
Handler when the timestamp browser button is clicked
"""
tmp_name, _ = QFileDialog.getOpenFileName(
self, "Choose Timestamp file", None,
"Timestamp File (*.tmsp);;All Files (*)"
)
if not tmp_name:
return
self.set_timestamp_filename(QDir.toNativeSeparators(tmp_name))
def create_timestamp_file_handler(self):
"""
Handler when the timestamp file create button is clicked
"""
tmp_name, _ = QFileDialog.getSaveFileName(
self, "Create New Timestamp file", None,
"Timestamp File (*.tmsp);;All Files (*)"
)
if not tmp_name:
return
try:
if (os.stat(QDir.toNativeSeparators(tmp_name)).st_size == 0):
# File is empty, create a non-empty one:
with open(QDir.toNativeSeparators(tmp_name), "w") as fh:
fh.write("[]") # Write the minimal valid JSON string to the file to allow it to be used
else:
pass
# with open(tmp_name, 'r') as fh:
# if fh.__sizeof__()>0:
# # File is not empty:
# pass
# else:
# # File is empty, create a non-empty one:
# fh.close()
# with open(tmp_name, "w") as fh:
# fh.write("[]") # Write the minimal valid JSON string to the file to allow it to be used
except WindowsError:
with open(tmp_name, "w") as fh:
fh.write("[]") # Write the minimal valid JSON string to the file to allow it to be used
# Create new file:
self.set_timestamp_filename(QDir.toNativeSeparators(tmp_name))
def _sort_model(self):
self.ui.list_timestamp.sortByColumn(0, Qt.AscendingOrder)
def _select_blank_row(self, parent, start, end):
self.ui.list_timestamp.selectRow(start)
def set_timestamp_filename(self, filename):
"""
Set the timestamp file name
"""
if not os.path.isfile(filename):
self._show_error("Cannot access timestamp file " + filename)
return
try:
self.timestamp_model = TimestampModel(filename, self)
self.timestamp_model.timeParseError.connect(
lambda err: self._show_error(err)
)
self.proxy_model.setSortRole(Qt.UserRole)
self.proxy_model.dataChanged.connect(self._sort_model)
self.proxy_model.dataChanged.connect(self.update_slider_highlight)
self.proxy_model.setSourceModel(self.timestamp_model)
self.proxy_model.rowsInserted.connect(self._sort_model)
self.proxy_model.rowsInserted.connect(self._select_blank_row)
self.ui.list_timestamp.setModel(self.proxy_model)
self.timestamp_filename = filename
self.ui.entry_timestamp.setText(self.timestamp_filename)
self.mapper.setModel(self.proxy_model)
self.mapper.addMapping(self.ui.entry_start_time, 0)
self.mapper.addMapping(self.ui.entry_end_time, 1)
self.mapper.addMapping(self.ui.entry_description, 2)
self.ui.list_timestamp.selectionModel().selectionChanged.connect(
self.timestamp_selection_changed)
self._sort_model()
directory = os.path.dirname(self.timestamp_filename)
basename = os.path.basename(self.timestamp_filename)
timestamp_name_without_ext = os.path.splitext(basename)[0]
for file_in_dir in os.listdir(directory):
current_filename = os.path.splitext(file_in_dir)[0]
found_video = (current_filename == timestamp_name_without_ext
and file_in_dir != basename)
if found_video:
found_video_file = os.path.join(directory, file_in_dir)
self.set_video_filename(found_video_file)
break
except ValueError as err:
self._show_error("Timestamp file is invalid")
def timestamp_selection_changed(self, selected, deselected):
if len(selected) > 0:
self.mapper.setCurrentModelIndex(selected.indexes()[0])
self.ui.button_save.setEnabled(True)
self.ui.button_remove_entry.setEnabled(True)
self.ui.entry_start_time.setReadOnly(False)
self.ui.entry_end_time.setReadOnly(False)
self.ui.entry_description.setReadOnly(False)
else:
self.mapper.setCurrentModelIndex(QModelIndex())
self.ui.button_save.setEnabled(False)
self.ui.button_remove_entry.setEnabled(False)
self.ui.entry_start_time.clear()
self.ui.entry_end_time.clear()
self.ui.entry_description.clear()
self.ui.entry_start_time.setReadOnly(True)
self.ui.entry_end_time.setReadOnly(True)
self.ui.entry_description.setReadOnly(True)
def set_video_filename(self, filename):
"""
Set the video filename
"""
if not os.path.isfile(filename):
self._show_error("Cannot access video file " + filename)
return
self.video_filename = filename
media = self.vlc_instance.media_new(self.video_filename)
media.parse()
if not media.get_duration():
self._show_error("Cannot play this media file")
self.media_player.set_media(None)
self.video_filename = None
else:
self.media_player.set_media(media)
if sys.platform.startswith('linux'): # for Linux using the X Server
self.media_player.set_xwindow(self.ui.frame_video.winId())
elif sys.platform == "win32": # for Windows
self.media_player.set_hwnd(self.ui.frame_video.winId())
elif sys.platform == "darwin": # for MacOS
self.media_player.set_nsobject(self.ui.frame_video.winId())
self.ui.entry_video.setText(self.video_filename)
self.update_video_file_labels_on_file_change()
self.media_started_playing = False
self.media_is_playing = False
self.set_volume(self.ui.slider_volume.value())
self.play_pause_model.setState(True)
def browse_video_handler(self):
"""
Handler when the video browse button is clicked
"""
tmp_name, _ = QFileDialog.getOpenFileName(
self, "Choose Video file", None,
"All Files (*)"
)
if not tmp_name:
return
self.set_video_filename(QDir.toNativeSeparators(tmp_name))
def _show_error(self, message, title="Error"):
QMessageBox.warning(self, title, message)
