def __init__(self, parent=None):
super(Preview, self).__init__(parent)
self.setupUi(self)
# the mlt class that is actually playing the videos
self.mlt = Mlt(self)
self.play_head = PlayHead()
self.verticalLayout_3.insertWidget(0, self.play_head)
self.mlt.s_producer_update.connect(self.on_playhead_timer)
self.mlt.s_play.connect(self.on_s_play)
self.mlt.s_stop.connect(self.on_s_stop)
self.mlt.s_seek.connect(self.on_s_seek)
self.play_head.setMaximum(self.HEAD_RESOLUTION)
self.play_head.sliderMoved.connect(self.onHeadValueChanged)
# self.horizontalSlider.valueChanged.connect(self.onHeadValueChanged) # causes stuttering
self.play_head.sliderPressed.connect(self.onHeadPressed)
self.play_head.sliderReleased.connect(self.set_play_button_state)
self.playButton.released.connect(self.onPlay)
self.playButton.setEnabled(False)
self.playButton.setArrowType(QtCore.Qt.NoArrow)
self.playButton.setIcon(QtGui.QIcon(get_icon_path('play_2_s.png')))
self.init_mlt()
class Preview(QtGui.QWidget, Ui_Form):
HEAD_RESOLUTION = 100.0
def __init__(self, parent=None):
super(Preview, self).__init__(parent)
self.setupUi(self)
# the mlt class that is actually playing the videos
self.mlt = Mlt(self)
self.play_head = PlayHead()
self.verticalLayout_3.insertWidget(0, self.play_head)
self.mlt.s_producer_update.connect(self.on_playhead_timer)
self.mlt.s_play.connect(self.on_s_play)
self.mlt.s_stop.connect(self.on_s_stop)
self.mlt.s_seek.connect(self.on_s_seek)
self.play_head.setMaximum(self.HEAD_RESOLUTION)
self.play_head.sliderMoved.connect(self.onHeadValueChanged)
# self.horizontalSlider.valueChanged.connect(self.onHeadValueChanged) # causes stuttering
self.play_head.sliderPressed.connect(self.onHeadPressed)
self.play_head.sliderReleased.connect(self.set_play_button_state)
self.playButton.released.connect(self.onPlay)
self.playButton.setEnabled(False)
self.playButton.setArrowType(QtCore.Qt.NoArrow)
self.playButton.setIcon(QtGui.QIcon(get_icon_path('play_2_s.png')))
self.init_mlt()
def init_mlt(self):
if not self.mlt.isRunning():
print 'starting thread'
self.mlt.start()
self.play_head.setEnabled(True)
self.playButton.setEnabled(True)
sleep(1) #TODO wait for thread to startup, find a better way...
if not self.mlt.isRunning():
print 'Aborting...'
return
def set_mlt_environ(self):
# needed for SDL to be used inside an existing Qt widget
#
win_id = self.widget.winId()
os.putenv('SDL_WINDOWID', str(win_id))
def load_movie(self, file_path):
self.init_mlt()
self.set_movie_path(str(file_path))
# if self.mlt.consumer and not self.mlt.consumer.is_stopped:
# self.mlt.stop_player()
self.mlt.load_new_movie()
self.play_head.setValue(0)
def on_s_seek(self, producer):
text = self.set_time_label(producer)
self.play_head.set_head_label('%d' % producer.position())
def set_play_button_state(self):
if self.mlt.is_playing():
self.playButton.setChecked(True)
self.playButton.setDown(True)
else:
self.playButton.setChecked(False)
self.playButton.setDown(False)
def on_s_stop(self, producer):
self.set_play_button_state()
def on_s_play(self, producer):
self.set_play_button_state()
def onHeadPressed(self):
self.mlt.pause()
def set_movie_path(self, file_name):
self.mlt.set_movie(file_name)
self.movieLabel.setText(os.path.basename(file_name))
def closeEvent(self, event):
try:
self.mlt.stop_player()
self.mlt.quit()
self.mlt.wait()
self.widget = None
self.mlt.consumer = None
self.mlt.producer = None
self.mlt = None
del self.mlt
except AttributeError, err:
print 'Preview.closeEvent:', err
