def remediate_audio(self, path):
# Create our Input() object to specify file we will be transcoding
input_file = Input(path)
# Create variables we will be using in the following code
codec = None
output_path = re.match('^(.*)\.audio\.\d\.mkv$', path).group(1) + '.final.audio.' + re.match('^.*\.audio\.(\d)\.mkv$', path).group(1) + '.mkv'
output_file = Output(output_path)
# Check if self.finalfiles is not none and if so create a list object. This is so we don't lose files already in the list
if self.finalfiles is None:
self.finalfiles = []
# Create our AudioCodec() object to define the output codec and bitrate
codec = AudioCodec('ac3')
codec = codec.bitrate('448k')
# Instance our FFmpeg() object to begin processing
remediate_audio_job = FFmpeg('/usr/bin/ffmpeg', input_file, codec, output_file)
# Begin the transcoding operation iterating over the piped stdout from the command
with remediate_audio_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:
self.finalfiles.append(output_path)
return True
else:
return False
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
