def demux_file(self):
# Return if we couldn't get the base file name without extension from the self._file.basename
if not self._outfile_base:
logger.log("Unable to get base file name; %s" % self._file.path, logger.DEBUG)
return False
# Create our Input() object to specify the file we will be demuxing
input_file = Input(self._file.path)
# Create a list of the codecs with maps or input stream to output file
codecs = []
# Create a list to contain the paths of all the output files
self.demuxfiles = []
# Iterate over self._file.videoStreams and create codecs for each video stream with 'copy' specified so no transcoding is done
for i, stream in enumerate(self._file.videoStreams):
stream_id = int(stream['track_id']) - 1
outfile_path = os.path.join(mediamanager.TRANSCODER_TEMPDIR, self._outfile_base + '.video.' + str(stream_id) + '.mkv')
video_codec = VideoCodec('copy')
video_codec = video_codec.mapstream("0:%d" % stream_id, outfile_path)
self.demuxfiles.append(outfile_path)
codecs.append(video_codec)
# Iterate over self._file.audioStreams and create codecs for each audio stream with 'copy' specified so no transcoding is done
for i, stream in enumerate(self._file.audioStreams):
stream_id = int(stream['track_id']) - 1
outfile_path = os.path.join(mediamanager.TRANSCODER_TEMPDIR, self._outfile_base + '.audio.' + str(stream_id) + '.mkv')
audio_codec = AudioCodec('copy')
audio_codec = audio_codec.mapstream("0:%d" % stream_id, outfile_path)
self.demuxfiles.append(outfile_path)
codecs.append(audio_codec)
# Create FFmpeg() object to begin demux operation
demux_job = FFmpeg('/usr/bin/ffmpeg', input_file)
# Iterate over items in codecs list and insert them at the end of the FFmpeg() object's list
for codec in codecs:
demux_job.insert(len(demux_job), codec)
# Begin demux operation and iterate over piped stdout from the popen process
logger.log("demux_job: %s" % demux_job, logger.DEBUG)
with demux_job as self._process:
while not self.abort and self._process.running:
for line in self._process.readlines():
if mediamanager.VERBOSE:
logger.log(line, logger.DEBUG)
if self._process.failed:
return False
elif self._process.successful:
return True
else:
return False
def remux_files(self):
# Create our output file object for ffmpegwrapper
if mediamanager.COMPLIANCE['Media']['Container']['Codec'] == 'Matroska':
self._muxed_file_basename = self._outfile_base + '.' + 'mkv'
elif mediamanager.COMPLIANCE['Media']['Container']['Codec'] == 'MPEG-4':
self._muxed_file_basename = self._outfile_base + '.' + 'mp4'
self._muxed_file_path = os.path.join(mediamanager.TRANSCODER_TEMPDIR, self._muxed_file_basename)
output_file = Output(self._muxed_file_path)
# Create our FFmpeg job object with path to ffmpeg binary
remux_job = FFmpeg('/usr/bin/ffmpeg')
# Iterate for self.finalfiles and create Input() objects for input files and insert at the end of the list
for _file in self.finalfiles:
input_file = Input(_file)
remux_job.insert(len(remux_job), input_file)
# Add video codec object with 'copy' as the codec specified so it just muxes the streams
remux_job.insert(len(remux_job), VideoCodec('copy'))
# Add audio codec object with 'copy' as the codec specified so it just muxes the streams
remux_job.insert(len(remux_job), AudioCodec('copy'))
# Add Output() object to specify the output path and container
remux_job.insert(len(remux_job), output_file)
# Begin remux job and iterate over the piped stdout from the command logging it to debug
with remux_job as self._process:
while not self.abort and self._process.running:
for line in self._process.readlines():
if mediamanager.VERBOSE:
logger.log(line, logger.DEBUG)
if self._process.failed:
return False
elif self._process.successful:
return True
else:
return False
