class AudioPlayer:
def __init__(self):
self._widget = None
self._player = None
self._timer = None
def toggle_playback(self, widget):
if self._widget == widget:
if self._player.get_pause():
plugins.video.video_player.pause_playback()
self._player.set_pause(False)
self._widget.audio_state = 'play'
self._timer = Clock.schedule_interval(self._playback_update,
.1)
else:
self.pause_playback()
else:
plugins.video.video_player.pause_playback()
if self._widget is not None:
self.pause_playback()
self._widget = widget
self._widget.audio_state = 'play'
self._player = MediaPlayer(filename=self._widget.audio_source,
ff_opts={
'paused': True,
'ss': self._widget.audio_pos
})
Clock.schedule_interval(self._start_playback, .1)
def _start_playback(self, dt):
if self._player.get_metadata()['duration'] is not None:
self._player.set_pause(False)
self._timer = Clock.schedule_interval(self._playback_update, .1)
return False
def pause_playback(self):
if self._timer is not None:
self._timer.cancel()
if self._player is not None and not self._player.get_pause():
self._player.set_pause(True)
if self._widget is not None:
self._widget.audio_state = 'pause'
def _playback_update(self, dt):
pts = self._player.get_pts()
if pts >= self._widget.audio_length:
self._player.set_pause(True)
self._player.seek(pts=0, relative=False, accurate=True)
self._widget.audio_state = 'pause'
self._widget.audio_pos = 0
return False
self._widget.audio_pos = pts
def update_audio_pos(self, widget, pts):
if self._widget == widget and self._player is not None:
self._player.seek(pts=pts, relative=False, accurate=True)
widget.audio_pos = pts
def ffplay(path):
global player
player = MediaPlayer(path)
time.sleep(0.5)
while True:
if int(float(str(player.get_pts())[:3])) - 2 == int(
float(str(player.get_metadata()['duration'])[:3])) - 2:
time.sleep(0.5)
player.toggle_pause()
player.close_player()
break
time.sleep(1)
class SoundFFPy(Sound):
@staticmethod
def extensions():
return formats_in
def __init__(self, **kwargs):
self._ffplayer = None
self.quitted = False
self._log_callback_set = False
self._state = ''
self.state = 'stop'
if not get_log_callback():
set_log_callback(_log_callback)
self._log_callback_set = True
super(SoundFFPy, self).__init__(**kwargs)
def __del__(self):
self.unload()
if self._log_callback_set:
set_log_callback(None)
def _player_callback(self, selector, value):
if self._ffplayer is None:
return
if selector == 'quit':
def close(*args):
self.quitted = True
self.unload()
Clock.schedule_once(close, 0)
elif selector == 'eof':
Clock.schedule_once(self._do_eos, 0)
def load(self):
self.unload()
ff_opts = {'vn': True, 'sn': True} # only audio
self._ffplayer = MediaPlayer(self.source,
callback=self._player_callback,
loglevel='info',
ff_opts=ff_opts)
player = self._ffplayer
player.set_volume(self.volume)
player.toggle_pause()
self._state = 'paused'
# wait until loaded or failed, shouldn't take long, but just to make
# sure metadata is available.
s = time.clock()
while ((not player.get_metadata()['duration']) and not self.quitted
and time.clock() - s < 10.):
time.sleep(0.005)
def unload(self):
if self._ffplayer:
self._ffplayer = None
self._state = ''
self.state = 'stop'
self.quitted = False
def play(self):
if self._state == 'playing':
super(SoundFFPy, self).play()
return
if not self._ffplayer:
self.load()
self._ffplayer.toggle_pause()
self._state = 'playing'
self.state = 'play'
super(SoundFFPy, self).play()
def stop(self):
if self._ffplayer and self._state == 'playing':
self._ffplayer.toggle_pause()
self._state = 'paused'
self.state = 'stop'
super(SoundFFPy, self).stop()
def seek(self, position):
if self._ffplayer is None:
return
self._ffplayer.seek(position, relative=False)
def get_pos(self):
if self._ffplayer is not None:
return self._ffplayer.get_pts()
return 0
def on_volume(self, instance, volume):
if self._ffplayer is not None:
self._ffplayer.set_volume(volume)
def _get_length(self):
if self._ffplayer is None:
return super(SoundFFPy, self)._get_length()
return self._ffplayer.get_metadata()['duration']
def _do_eos(self, *args):
if not self.loop:
self.stop()
else:
self.seek(0.)
class SoundFFPy(Sound):
@staticmethod
def extensions():
return formats_in
def __init__(self, **kwargs):
self._ffplayer = None
self.quitted = False
self._log_callback_set = False
self._state = ''
self.state = 'stop'
self._callback_ref = WeakMethod(self._player_callback)
if not get_log_callback():
set_log_callback(_log_callback)
self._log_callback_set = True
super(SoundFFPy, self).__init__(**kwargs)
def __del__(self):
self.unload()
if self._log_callback_set:
set_log_callback(None)
def _player_callback(self, selector, value):
if self._ffplayer is None:
return
if selector == 'quit':
def close(*args):
self.quitted = True
self.unload()
Clock.schedule_once(close, 0)
elif selector == 'eof':
Clock.schedule_once(self._do_eos, 0)
def load(self):
self.unload()
ff_opts = {'vn': True, 'sn': True} # only audio
self._ffplayer = MediaPlayer(self.source,
callback=self._callback_ref,
loglevel='info', ff_opts=ff_opts)
player = self._ffplayer
player.set_volume(self.volume)
player.toggle_pause()
self._state = 'paused'
# wait until loaded or failed, shouldn't take long, but just to make
# sure metadata is available.
s = time.clock()
while ((not player.get_metadata()['duration'])
and not self.quitted and time.clock() - s < 10.):
time.sleep(0.005)
def unload(self):
if self._ffplayer:
self._ffplayer = None
self._state = ''
self.state = 'stop'
self.quitted = False
def play(self):
if self._state == 'playing':
super(SoundFFPy, self).play()
return
if not self._ffplayer:
self.load()
self._ffplayer.toggle_pause()
self._state = 'playing'
self.state = 'play'
super(SoundFFPy, self).play()
def stop(self):
if self._ffplayer and self._state == 'playing':
self._ffplayer.toggle_pause()
self._state = 'paused'
self.state = 'stop'
super(SoundFFPy, self).stop()
def seek(self, position):
if self._ffplayer is None:
return
self._ffplayer.seek(position, relative=False)
def get_pos(self):
if self._ffplayer is not None:
return self._ffplayer.get_pts()
return 0
def on_volume(self, instance, volume):
if self._ffplayer is not None:
self._ffplayer.set_volume(volume)
def _get_length(self):
if self._ffplayer is None:
return super(SoundFFPy, self)._get_length()
return self._ffplayer.get_metadata()['duration']
def _do_eos(self, *args):
if not self.loop:
self.stop()
else:
self.seek(0.)
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')
class Track:
def __init__(self, name=None, track_id=None):
# this block of code determines the attribute to be used to construct the object
# i.e. wether to construct based on a search term of directly from an ID
self.__type = None
for attribute in [name, track_id]:
if attribute is not None:
self.__type = [
key for key, value in locals().items()
if value == attribute
][0]
if self.__type is None:
raise NoAttributesSupplied
self.track_id = track_id
self.title = name
self.fetch_type = None
print(':::fetching url')
html = requests.get("https://www.youtube.com/results?search_query=" +
self.title.replace(' ', '+'))
video = pafy.new(
re.findall(r"watch\?v=(\S{11})", str(html.content))[0])
best_stream = video.getbestaudio(preftype="wav", ftypestrict=False)
self.ext = '.' + best_stream.extension
self.title = filter_search_term(video.title).strip()
self.url = best_stream.url
self.filename = self.title + self.ext
print('video title:::', filter_search_term(video.title))
# dont repeat if all the data's been already fetched
if not self.fetch_type is None:
return
if self.__type == 'track_id':
track = spotify.track(self.track_id)
elif self.__type == 'name':
track_search = spotify.search(self.title, type='track', limit=1)
if len(track_search['tracks']['items']) <= 0:
print(
':::track not available from spotify, doing a minimal fetch'
)
if '-' in self.title:
self.artists = [self.title.split('-')[0].strip()]
else:
self.artists = None
self.__artists_names = None
self.album = None
self.track_id = None
self.genres = None
self.fetch_type = 'minimal'
return
else:
track = track_search['tracks']['items'][0]
self.track_id = track['id']
self.artists = []
self.__artists_names = []
for artist in track['artists']:
self.artists.append(Artist(artist_id=artist['id']))
self.__artists_names.append(artist['name'])
self.genres = []
for artist in self.artists:
for genre in artist.genres:
self.genres.append(genre)
self.album = Album(album_id=track['album']['id'])
self.fetch_type = 'full'
print(':::fetched')
def send_notification(self):
print(":::sending notif")
# send notification
# fetch metadata for the track if it has'nt already been fetched
if self.fetch_type is None:
self.fetch_metadata()
message = ''
if not self.__artists_names is None:
message = self.__artists_names
if len(message) == 1: pass
elif len(message) == 2: message.insert(1, ' and ')
else:
increment = 1
for i in range(len(message)):
if not i == len(message) - 1:
insert_index = i + increment
message.insert(insert_index, ' and ')
increment += insert_index + 1
message = ''.join(message)
if not self.album is None:
message += f'\nfrom album {self.album.name}'
notification.notify(
title=self.title,
message=message,
app_icon=r'C:\users\gadit\downloads\music_icon0.ico',
app_name='M E L O D I N E',
timeout=10,
toast=False)
def download(self, custom=None, no_part=True):
global audio_downloader
audio_downloader = YoutubeDL({
#'buffersize': 512,
#'http_chunk_size': 256,
'audioformat': 'wav',
'format': 'bestaudio',
'outtmpl': self.title + self.ext,
'extractaudio': True,
'retries': 5,
'continuedl': True,
'nopart': no_part,
'hls_prefer_native': True,
'quiet': True
})
audio_downloader.extract_info(self.url)
def play(self):
self.fetch_metadata()
self.download(no_part=True)
print('::: downloaded')
threading._start_new_thread(self.send_notification, ())
self.player = MediaPlayer(self.filename)
time.sleep(0.5)
print('::: playing')
last_pts = 0
updated_pts = 0
while True:
updated_pts = int(float(str(self.player.get_pts())[:3])) - 3
print(':::updated', updated_pts)
# print(player.get_pts())
while self.player.get_pause():
time.sleep(0.5)
if updated_pts == last_pts:
self.player.toggle_pause()
print("---buffered out, pausing")
time.sleep(1)
self.player.toggle_pause()
if int(float(str(self.player.get_pts())[:3])) - 3 == int(
float(str(
self.player.get_metadata()['duration'])[:3])) - 3:
print(':::breaking')
self.player.toggle_pause()
self.player.close_player()
last_pts = updated_pts
time.sleep(1)
print(':::finished playing')
def process(inputDir):
cv2.namedWindow("frame", cv2.WINDOW_NORMAL)
cap = cv2.VideoCapture(os.path.join(inputDir, 'worldCamera.mp4'))
t2i = Timestamp2Index(os.path.join(inputDir, 'frame_timestamps.tsv'))
ff_opts = {'vn': False, 'volume': 1.} #{'sync':'video', 'framedrop':True}
player = MediaPlayer(os.path.join(inputDir, 'worldCamera.mp4'),
ff_opts=ff_opts)
while player.get_metadata()['src_vid_size'] == (0, 0):
time.sleep(0.01)
frame_size = player.get_metadata()['src_vid_size']
frateInfo = player.get_metadata()['frame_rate']
frate = float(frateInfo[0]) / frateInfo[1]
print(frateInfo, frate)
width = int(frame_size[0])
height = int(frame_size[1])
val = ''
cvImg = np.zeros((height, width, 3))
print(np.shape(cvImg))
# Read gaze data
gazes = {}
with open(os.path.join(inputDir, 'gazeData_world.tsv'), 'r') as f:
reader = DictReader(f, delimiter='\t')
for entry in reader:
frame_idx = int(float(entry['frame_idx']))
confidence = float(entry['confidence'])
try:
gx = float(entry['norm_pos_x']) * width
gy = float(entry['norm_pos_y']) * height
gaze = Gaze(gx, gy, confidence)
if frame_idx in gazes:
gazes[frame_idx].append(gaze)
else:
gazes[frame_idx] = [gaze]
except Exception as e:
sys.stderr.write(str(e) + '\n')
sys.stderr.write('[WARNING] Problematic entry: %s\n' % (entry))
# Read ground truth and transformation
gt = {}
transformation = {}
with open(os.path.join(inputDir, 'transformations.tsv'), 'r') as f:
reader = csv.DictReader(f, delimiter='\t')
for entry in reader:
frame_idx = int(entry['frame_idx'])
# ground truth pixel position in undistorted image
tmp = entry['gt'].split(',')
gt[frame_idx] = (float(tmp[0]), float(tmp[1]))
lastIdx = None
while val != 'eof':
frame, val = player.get_frame(True)
if val != 'eof' and frame is not None:
img, video_pts = frame
#cvImg = np.reshape(np.asarray(img.to_bytearray()[0]), (height, width, 3)).copy()
#cvImg = cv2.cvtColor(cvImg, cv2.COLOR_RGB2BGR)
audio_pts = player.get_pts(
) # this is audio_pts because we're in default audio sync mode
# assumes the frame rate is constant, which is dangerous (frame drops and what not)
#idx = math.floor(video_pts*frate)
# the audio is my shepherd and nothing shall I lack :-)
# From the experience, PROP_POS_MSEC is utterly broken; let's use indexes instead
idx = t2i.find(
audio_pts) - 1 # opencv starts at 0; processed data at 1
idxOffset = cap.get(cv2.CAP_PROP_POS_FRAMES) - idx
if abs(idxOffset) > 0:
cap.set(cv2.CAP_PROP_POS_FRAMES, idx)
if lastIdx is None or lastIdx != idx:
# print(idx,cap.get(cv2.CAP_PROP_FRAME_COUNT))
ret, cvImg = cap.read()
if idx in gazes:
for gaze in gazes[idx]:
gaze.draw(cvImg)
if idx in gt:
x = int(round(gt[idx][0]))
y = int(round(gt[idx][1]))
cv2.line(cvImg, (x, 0), (x, int(height)), (0, 255, 0), 2)
cv2.line(cvImg, (0, y), (int(width), y), (0, 255, 0), 2)
cv2.rectangle(cvImg, (0, int(height)),
(int(0.25 * width), int(height) - 30), (0, 0, 0),
-1)
cv2.putText(cvImg, ("%8.2f [%6d]" % (audio_pts, idx)),
(0, int(height) - 5), cv2.FONT_HERSHEY_PLAIN, 2,
(0, 255, 255), 2)
cv2.imshow("frame", cvImg)
if width > 1280:
cv2.resizeWindow('frame', 1280, 720)
lastIdx = idx
key = cv2.waitKey(1) & 0xFF
if key == ord('k'):
player.seek(audio_pts + 10, relative=False)
if key == ord('j'):
player.seek(max(0, audio_pts - 10), relative=False)
if key == ord('l'):
player.seek(audio_pts + 5, relative=False)
if key == ord('h'):
player.seek(max(0, audio_pts - 5), relative=False)
if key == ord('p'):
player.toggle_pause()
if key == ord('q'):
break
cap.release()
class VideoPlayer:
AudioSyncInterval = 60
THREAD_MSG_CLEAR = "_th_clr_"
THREAD_MSG_VSEEK = "_th_vseek_"
def __init__(self, video, trackbar_name, window_name, **kwargs):
self.cur_frame = 0
self.dframe_cnt = 0
self.audio_frame = 0
self.last_vframe = -1 # last video frame
self.last_aframe = -1 # last audio frame
self.video = video
self.audio = None
self.audio_sync_interval = VideoPlayer.AudioSyncInterval
if video:
self.src = video.src
self.frame_max = video.frame_max
else:
self.frame_max = kwargs.get('fmax')
self.trackbar = trackbar_name
self.window = window_name
self.dqueue = Queue(maxsize=_G.MaxQueueSize)
self.equeue = Queue()
self.FLAG_ENCODE_STOP = not kwargs.get('output')
self.FLAG_DECODE_STOP = False
self.FLAG_LOCK = False
self.thread_msg = None
if self.FLAG_ENCODE_STOP:
print(f"Ostream closed for {window_name}")
mkframe = kwargs.get('make_frame')
if not mkframe:
mkframe = lambda f, t: f
self.make_frame = mkframe
cv2.namedWindow(self.window)
cv2.createTrackbar(self.trackbar, self.window, 0, self.frame_max,
self.set_next_frame)
def init_ostream(self):
if not self.video:
print("No video loaded for {self}")
return
fname = out_filename(_G.StreamFileIndex)
fourcc = cv2.VideoWriter_fourcc(*_G.VideoCodec)
_fps = self.video.fps
_res = (_G.CanvasWidth, _G.CanvasHeight)
return cv2.VideoWriter(fname, fourcc, _fps, _res)
def set_next_frame(self, n):
if not self.video:
return
if not self.FLAG_ENCODE_STOP:
print("Cannot jump a encoding video")
return
if abs(n - self.cur_frame) >= _G.AutoSyncThreshold:
self.jump_to_frame(n)
def set_audio_frame(self, n):
t = self.video.frame2timestamp(n)
print(f"Sync f={n}, t={t}")
self.audio.seek(t, False, accurate=True)
def jump_to_frame(self, n):
print(f"Jumping to frame {n}")
self.lock_threads()
self.cur_frame = n
self.dframe_cnt = n
self.clear_queue()
self.seek_video(n)
self.sync_audio_channel()
self.unlock_threads()
ori_pause_stat = _G.FLAG_PAUSE
# fiber = self.wait_until_safe2play()
# while fiber:
# fiber, _ = _G.resume(fiber)
# time.sleep(_G.UPS)
self.pause(ori_pause_stat)
def sync_audio_channel(self):
if self.audio:
self.set_audio_frame(self.cur_frame)
def start(self):
dth = Thread(target=self.update_decode, daemon=True)
dth.start()
if not self.FLAG_ENCODE_STOP:
eth = Thread(target=self.update_encode, daemon=True)
eth.start()
if self.video:
ath = Thread(target=self.extract_audio, daemon=True)
ath.start()
while not self.audio:
time.sleep(_G.UPS)
sth = Thread(target=self.update_synchronzation, daemon=True)
sth.start()
return self
def extract_audio(self):
fname = _G.FullAudioFilename
if not os.path.exists(fname):
v = mp.VideoFileClip(self.src)
v.audio.write_audiofile(fname)
self.audio = MediaPlayer(_G.FullAudioFilename)
self.audio.toggle_pause()
print("Audio loaded")
def process_thread_message(self):
if self.thread_msg == VideoPlayer.THREAD_MSG_CLEAR:
print("Clear queue")
self.dqueue.queue.clear()
elif self.THREAD_MSG_VSEEK == VideoPlayer.THREAD_MSG_VSEEK:
print("Seek to", self.thread_args[0])
if self.video:
self.video.set(cv2.CAP_PROP_POS_FRAMES, self.thread_args[0])
def update_decode(self):
# current framt count in decoding
self.dframe_cnt = 0
while not self.FLAG_DECODE_STOP:
time.sleep(_G.UPS)
if self.thread_msg:
self.process_thread_message()
self.thread_msg = None
self.thread_args = None
if self.FLAG_LOCK:
pass
if not self.dqueue.full():
frame = None
if self.video:
ret, frame = self.video.read()
if not ret:
self.FLAG_DECODE_STOP = True
return
frame = self.make_frame(frame, self.dframe_cnt)
self.dqueue.put(frame)
self.dframe_cnt += 1
print("Decode Ended")
def update_encode(self):
ostream = self.init_ostream()
while not self.FLAG_ENCODE_STOP:
if not self.equeue.empty():
ostream.write(self.equeue.get())
time.sleep(_G.SubThreadUPS)
def update_synchronzation(self):
while not _G.FLAG_STOP:
time.sleep(_G.SubThreadUPS)
if self.FLAG_LOCK:
pass
aframe = self.audio.get_pts() * self.video.fps
if abs(aframe - self.cur_frame) > _G.AutoSyncThreshold:
self.sync_audio_channel()
print(f"Auto Synced: {aframe} > {self.cur_frame}")
def frame_available(self):
if self.FLAG_LOCK:
return False
return self.dqueue.qsize() > 0
def get_frame(self):
if self.FLAG_LOCK:
return None
if self.dqueue.empty():
return None
return self.dqueue.get()
def get_audio_frame(self):
return int(self.audio.get_pts() * self.video.fps)
def write_async_ostream(self, frame):
self.equeue.put(frame)
def update(self):
frame_synced = self.update_frame()
self.update_input()
self.update_flags()
return frame_synced
def update_frame(self):
if self.audio:
self.audio_frame = self.get_audio_frame()
if self.audio_frame == self.last_aframe:
return False
self.last_aframe = self.audio_frame
if self.is_ended() or _G.FLAG_PAUSE:
return False
cv2.setTrackbarPos(self.trackbar, self.window, self.cur_frame)
frame = self.get_frame()
if frame is None:
return False
cv2.imshow(self.window, frame)
if not self.FLAG_ENCODE_STOP:
self.write_async_ostream(frame)
if not _G.FLAG_PAUSE:
self.last_vframe = self.cur_frame
self.cur_frame += 1
return True
def update_flags(self):
if self.is_ended() and not self.equeue.empty():
self.FLAG_ENCODE_STOP = True
def update_input(self):
key = cv2.waitKey(_G.UPMS)
if key == _G.VK_ESC:
self.stop()
elif key == _G.VK_SPACE:
self.pause(_G.FLAG_PAUSE ^ True)
elif key == _G.VK_S or key == _G.VK_s:
print(
f"e/d queue size={self.equeue.qsize()}/{self.dqueue.qsize()}")
def stop(self):
_G.FLAG_STOP = True
def pause(self, flg):
if _G.FLAG_PAUSE != flg:
self.audio.toggle_pause()
_G.FLAG_PAUSE = flg
self.sync_audio_channel()
def is_ended(self):
return self.cur_frame >= self.frame_max
def make_audio_window(self):
window, val = self.audio.get_frame()
if window is None or val == 'eof':
return (None, None)
return window
# Should be called from main thread to wait
def wait_until_safe2play(self):
while self.dqueue.qsize() < _G.MaxQueueSize // 2:
self.pause(True)
yield
def clear_queue(self):
self.send_thread_message(VideoPlayer.THREAD_MSG_CLEAR)
def lock_threads(self):
self.FLAG_LOCK = True
time.sleep(_G.UPS * 2)
def unlock_threads(self):
self.FLAG_LOCK = False
time.sleep(_G.UPS * 2)
def seek_video(self, n):
self.send_thread_message(VideoPlayer.THREAD_MSG_VSEEK, n)
def send_thread_message(self, msg, *args):
while self.thread_msg:
time.sleep(_G.UPS)
self.thread_msg = msg
self.thread_args = args
class VideoStream:
def __init__(self, video_source=None):
ff_opts = {'paused': True, 'autoexit': False} # Audio options
self.video_surce = video_source
# Open the video source
self.player = MediaPlayer(video_source, ff_opts=ff_opts)
# TODO: colocar pausa de tiempo para cargas mediaplayer y obtener los datos
# conseguir el frame rate para la sincronizacion self.dalay
while self.player.get_metadata()['src_vid_size'] == (0, 0):
time.sleep(0.01)
data = self.player.get_metadata()
print('data -->', data)
self.f_rate = data['frame_rate']
print('delay -> ', self.f_rate)
self.w, self.h = data['src_vid_size']
print('WxH -> ', self.w, self.h)
self.pts = self.player.get_pts(
) # Returns the elapsed play time. float
print('pts ->', self.pts)
self.duration = data['duration']
print('duration', self.duration)
self.pause = self.player.get_pause(
) # Returns whether the player is paused.
print('pause ->', self.pause)
self.volume = self.player.get_volume(
) # Returns the volume of the audio. loat: A value between 0.0 - 1.0
print('volume ->', self.volume)
self.player.toggle_pause(
) # Toggles -alterna- the player’s pause state
# self.player.set_pause(False) # auses or un-pauses the file. state: bool
cond = True
while cond:
self.l_frame, self.val = self.player.get_frame()
if self.val == 'eof':
print('can not open source: ', video_source)
break
elif self.l_frame is None:
time.sleep(0.01)
else:
self._imagen, self.pts = self.l_frame
print('pts ->', self.pts)
# arr = self._imagen.to_memoryview()[0] # array image
# self.imagen = Image.frombytes("RGB", self.original_size, arr.memview)
# self.imagen.show()
cond = False
# propierties.
@property
def f_rate(self):
return self.__f_rate
@f_rate.setter
def f_rate(self, val):
import math
vn = val[0]
vd = val[1]
if vd <= 1:
self.__f_rate = vn
elif vd > 1:
self.__f_rate = int(round(vn / vd))
else:
self.__f_rate = 30
# end properties.
def get_frame(self):
'''
Return valores:
val : 'eof' or 'pause'
pts : time location aduio imagen.
imagen : frame image
Return (val, t, imagen)
'''
self.l_frame, self.val = self.player.get_frame()
if self.val == 'eof':
# condicion final fichero, salimos if and while
# self.player.toggle_pause() # ponemos en pause
return self.val, None, None
elif self.l_frame is None:
time.sleep(0.01)
return self.val, None, None
else:
# import math
self._imagen, self.pts = self.l_frame
return self.val, self.pts, self._imagen
# w, h = self._imagen.get_size()
# linesize = [int(math.ceil(w * 3 / 32.) * 32)]
# self._imagen = pic.Image(plane_buffers=[bytes(b' ') * (h * linesize[0])],
# pix_fmt=self._imagen.get_pixel_format(), size=(w, h), linesize=linesize)
# self._imagen.get_linesizes(keep_align=True)
# if self.new_size is not None:
# sws = None
# n_w , n_h = self.new_size
# if n_w > n_h:
# sws = pic.SWScale(w, h, self._imagen.get_pixel_format(), oh=n_h)
# else:
# sws = pic.SWScale(w, h, self._imagen.get_pixel_format(), ow=n_w)
# self._imagen = sws.scale(self._imagen)
# size = self._imagen.get_size()
# arr = self._imagen.to_memoryview()[0] # array image
# self.imagen = Image.frombytes("RGB", size, arr.memview)
# print('>>> videostream::get_frame()::self.pts ->', self.pts)
def toggle_pause(self):
'''
Function: toggle_pause
'''
try: # Stopping audio
self.player.toggle_pause()
# self.player = None
except:
pass
def seek(self, pts=None, relative=False, accurate=False):
if not pts:
return
self.player.seek(pts, relative=False, accurate=False)
def snapshot(self, road=None):
'''
get current frame
'''
img = self.l_frame[0]
if img is not None:
size = img.get_size()
arr = img.to_memoryview()[0] # array image
img = Image.frombytes("RGB", size, arr.memview)
# vamos a guardar esto.
time_str = time.strftime("%d-%m-%Y-%H-%M-%S")
frame_name = f"frame-{time_str}.jpg"
if not road:
ruta = os.path.dirname(self.video_surce)
name_out = os.path.join(ruta, frame_name)
else:
name_out = os.path.join(road, frame_name)
img.save(name_out)
# Release the video source when the object is destroyed
def __del__(self):
self.player.close_player()
print('__del__')