def __init__(self,
filename,
decode_file=False,
buffersize=200000,
nbytes=2,
fps=44100):
AudioClip.__init__(self)
self.filename = filename
self.reader = FFMPEG_AudioReader(
filename,
decode_file=decode_file,
fps=fps,
nbytes=nbytes,
buffersize=buffersize,
)
self.fps = fps
self.duration = self.reader.duration
self.end = self.reader.duration
self.buffersize = self.reader.buffersize
self.filename = filename
self.make_frame = lambda t: self.reader.get_frame(t)
self.nchannels = self.reader.nchannels
def __init__(self, filename, buffersize=200000, nbytes=2, fps=44100):
AudioClip.__init__(self)
self.filename = filename
self.reader = FFMPEG_AudioReader(filename,
fps=fps,
nbytes=nbytes,
bufsize=buffersize + 100)
self.fps = fps
self.duration = self.reader.duration
self.end = self.duration
self.nframes = self.reader.nframes
self.buffersize = buffersize
self.buffer = None
self._fstart_buffer = 1
self._buffer_around(1)
def gf(t):
bufsize = self.buffersize
if isinstance(t, np.ndarray):
# lazy implementation, but should not cause problems in
# 99.99 % of the cases
result = np.zeros((len(t), 2))
in_time = (t >= 0) & (t < self.duration)
inds = (self.fps * t + 1).astype(int)[in_time]
f_tmin, f_tmax = inds.min(), inds.max()
if not (0 <=
(f_tmin - self._fstart_buffer) < len(self.buffer)):
self._buffer_around(f_tmin)
elif not (0 <=
(f_tmax - self._fstart_buffer) < len(self.buffer)):
self._buffer_around(f_tmax)
try:
tup = in_time.nonzero()
inds2 = inds - self._fstart_buffer
result[in_time] = self.buffer[inds - self._fstart_buffer]
return result
except IndexError as error:
print("Error: wrong indices in video buffer. Maybe" +
" buffer too small.")
raise error
else:
ind = int(self.fps * t)
if ind < 0 or ind > self.nframes: # out of time: return 0
return np.zeros(self.nchannels)
if not (0 <= (ind - self._fstart_buffer) < len(self.buffer)):
# out of the buffer: recenter the buffer
self._buffer_around(ind)
# read the frame in the buffer
return self.buffer[ind - self._fstart_buffer]
self.get_frame = gf
def __init__(self, filename, buffersize=200000, nbytes=2, fps=44100):
AudioClip.__init__(self)
self.filename = filename
reader = FFMPEG_AudioReader(filename,fps=fps,nbytes=nbytes,
buffersize=buffersize)
self.reader = reader
self.fps = fps
self.duracion = reader.duracion
self.fin = reader.duracion
self.make_frame = lambda t: reader.get_frame(t)
self.nchannels = reader.nchannels
