class PlayerApp(App):
def __init__(self, **kwargs):
super(PlayerApp, self).__init__(**kwargs)
self.texture = None
self.size = (0, 0)
self.next_frame = None
self._done = False
self._lock = RLock()
self._thread = Thread(target=self._next_frame, name='Next frame')
self._trigger = Clock.create_trigger(self.redraw)
self._force_refresh = False
def build(self):
self.root = Root()
return self.root
def on_start(self):
self.callback_ref = WeakMethod(self.callback)
filename = sys.argv[1]
logging.info('ffpyplayer: Playing file "{}"'.format(filename))
# try ff_opts = {'vf':'edgedetect'} http://ffmpeg.org/ffmpeg-filters.html
ff_opts = {}
self.ffplayer = MediaPlayer(filename, callback=self.callback_ref,
loglevel=log_level, ff_opts=ff_opts)
self._thread.start()
self.keyboard = Window.request_keyboard(None, self.root)
self.keyboard.bind(on_key_down=self.on_keyboard_down)
def resize(self):
if self.ffplayer:
w, h = self.ffplayer.get_metadata()['src_vid_size']
if not h:
return
lock = self._lock
lock.acquire()
if self.root.image.width < self.root.image.height * w / float(h):
self.ffplayer.set_size(-1, self.root.image.height)
else:
self.ffplayer.set_size(self.root.image.width, -1)
lock.release()
logging.debug('ffpyplayer: Resized video.')
def update_pts(self, *args):
if self.ffplayer:
self.root.seek.value = self.ffplayer.get_pts()
def on_keyboard_down(self, keyboard, keycode, text, modifiers):
if not self.ffplayer:
return False
lock = self._lock
ctrl = 'ctrl' in modifiers
if keycode[1] == 'p' or keycode[1] == 'spacebar':
logging.info('Toggled pause.')
self.ffplayer.toggle_pause()
elif keycode[1] == 'r':
logging.debug('ffpyplayer: Forcing a refresh.')
self._force_refresh = True
elif keycode[1] == 'v':
logging.debug('ffpyplayer: Changing video stream.')
lock.acquire()
self.ffplayer.request_channel('video',
'close' if ctrl else 'cycle')
lock.release()
Clock.unschedule(self.update_pts)
if ctrl: # need to continue updating pts, since video is disabled.
Clock.schedule_interval(self.update_pts, 0.05)
elif keycode[1] == 'a':
logging.debug('ffpyplayer: Changing audio stream.')
lock.acquire()
self.ffplayer.request_channel('audio',
'close' if ctrl else 'cycle')
lock.release()
elif keycode[1] == 't':
logging.debug('ffpyplayer: Changing subtitle stream.')
lock.acquire()
self.ffplayer.request_channel('subtitle',
'close' if ctrl else 'cycle')
lock.release()
elif keycode[1] == 'right':
logging.debug('ffpyplayer: Seeking forward by 10s.')
self.ffplayer.seek(10.)
elif keycode[1] == 'left':
logging.debug('ffpyplayer: Seeking back by 10s.')
self.ffplayer.seek(-10.)
elif keycode[1] == 'up':
logging.debug('ffpyplayer: Increasing volume.')
self.ffplayer.set_volume(self.ffplayer.get_volume() + 0.01)
self.root.volume.value = self.ffplayer.get_volume()
elif keycode[1] == 'down':
logging.debug('ffpyplayer: Decreasing volume.')
self.ffplayer.set_volume(self.ffplayer.get_volume() - 0.01)
self.root.volume.value = self.ffplayer.get_volume()
return True
def touch_down(self, touch):
if self.root.seek.collide_point(*touch.pos) and self.ffplayer:
pts = ((touch.pos[0] - self.root.volume.width) /
self.root.seek.width * self.ffplayer.get_metadata()['duration'])
logging.debug('ffpyplayer: Seeking to {}.'.format(pts))
self.ffplayer.seek(pts, relative=False)
self._force_refresh = True
return True
return False
def callback(self, selector, value):
if self.ffplayer is None:
return
if selector == 'quit':
logging.debug('ffpyplayer: Quitting.')
def close(*args):
self._done = True
self.ffplayer = None
Clock.schedule_once(close, 0)
# called from internal thread, it typically reads forward
elif selector == 'display_sub':
self.display_subtitle(*value)
def _next_frame(self):
ffplayer = self.ffplayer
sleep = time.sleep
trigger = self._trigger
while not self._done:
force = self._force_refresh
if force:
self._force_refresh = False
frame, val = ffplayer.get_frame(force_refresh=force)
if val == 'eof':
logging.debug('ffpyplayer: Got eof.')
sleep(1 / 30.)
elif val == 'paused':
logging.debug('ffpyplayer: Got paused.')
sleep(1 / 30.)
else:
if frame:
logging.debug('ffpyplayer: Next frame: {}.'.format(val))
sleep(val)
self.next_frame = frame
trigger()
else:
val = val if val else (1 / 30.)
logging.debug('ffpyplayer: Schedule next frame check: {}.'
.format(val))
sleep(val)
def redraw(self, dt=0, force_refresh=False):
if not self.ffplayer:
return
if self.next_frame:
img, pts = self.next_frame
if img.get_size() != self.size or self.texture is None:
self.root.image.canvas.remove_group(str(self)+'_display')
self.texture = Texture.create(size=img.get_size(),
colorfmt='rgb')
# by adding 'vf':'vflip' to the player initialization ffmpeg
# will do the flipping
self.texture.flip_vertical()
self.texture.add_reload_observer(self.reload_buffer)
self.size = img.get_size()
logging.debug('ffpyplayer: Creating new image texture of '
'size: {}.'.format(self.size))
self.texture.blit_buffer(img.to_memoryview()[0])
self.root.image.texture = None
self.root.image.texture = self.texture
self.root.seek.value = pts
logging.debug('ffpyplayer: Blitted new frame with time: {}.'
.format(pts))
if self.root.seek.value:
self.root.seek.max = self.ffplayer.get_metadata()['duration']
def display_subtitle(self, text, fmt, pts, t_start, t_end):
pass # fmt is text (unformatted), or ass (formatted subs)
def reload_buffer(self, *args):
logging.debug('ffpyplayer: Reloading buffer.')
frame = self.next_frame
if not frame:
return
self.texture.blit_buffer(frame[0].to_memoryview()[0], colorfmt='rgb',
bufferfmt='ubyte')
