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Merge pull request #353 from FiloSottile/avconv
check for avconv and ffmpeg, use as available; closes #344
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commit
17f3c40a31
@ -87,10 +87,11 @@ ### Authentication Options:
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### Post-processing Options:
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--extract-audio convert video files to audio-only files (requires
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ffmpeg and ffprobe)
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ffmpeg or avconv and ffprobe or avprobe)
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--audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a", or "wav";
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best by default
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--audio-quality QUALITY ffmpeg audio bitrate specification, 128k by default
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--audio-quality QUALITY ffmpeg/avconv audio bitrate specification, 128k by
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default
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-k, --keep-video keeps the video file on disk after the post-
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processing; the video is erased by default
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@ -60,7 +60,6 @@ def __init__(self, message):
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self.message = message
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class FFmpegExtractAudioPP(PostProcessor):
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def __init__(self, downloader=None, preferredcodec=None, preferredquality=None, keepvideo=False):
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PostProcessor.__init__(self, downloader)
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if preferredcodec is None:
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@ -68,11 +67,22 @@ def __init__(self, downloader=None, preferredcodec=None, preferredquality=None,
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self._preferredcodec = preferredcodec
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self._preferredquality = preferredquality
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self._keepvideo = keepvideo
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self._exes = self.detect_executables()
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@staticmethod
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def get_audio_codec(path):
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def detect_executables():
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available = {'avprobe' : False, 'avconv' : False, 'ffmpeg' : False, 'ffprobe' : False}
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for path in os.environ["PATH"].split(os.pathsep):
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for program in available.keys():
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exe_file = os.path.join(path, program)
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if os.path.isfile(exe_file) and os.access(exe_file, os.X_OK):
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available[program] = exe_file
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return available
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def get_audio_codec(self, path):
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if not self._exes['ffprobe'] and not self._exes['avprobe']: return None
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try:
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cmd = ['ffprobe', '-show_streams', '--', encodeFilename(path)]
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cmd = [self._exes['avprobe'] or self._exes['ffprobe'], '-show_streams', '--', encodeFilename(path)]
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handle = subprocess.Popen(cmd, stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE)
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output = handle.communicate()[0]
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if handle.wait() != 0:
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@ -87,22 +97,18 @@ def get_audio_codec(path):
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return audio_codec
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return None
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@staticmethod
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def run_ffmpeg(path, out_path, codec, more_opts):
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def run_ffmpeg(self, path, out_path, codec, more_opts):
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if not self._exes['ffmpeg'] and not self._exes['avconv']:
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raise AudioConversionError('ffmpeg or avconv not found. Please install one.')
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if codec is None:
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acodec_opts = []
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else:
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acodec_opts = ['-acodec', codec]
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cmd = ['ffmpeg', '-y', '-i', encodeFilename(path), '-vn'] + acodec_opts + more_opts + ['--', encodeFilename(out_path)]
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try:
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout,stderr = p.communicate()
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except (IOError, OSError):
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e = sys.exc_info()[1]
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if isinstance(e, OSError) and e.errno == 2:
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raise AudioConversionError('ffmpeg not found. Please install ffmpeg.')
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else:
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raise e
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cmd = ([self._exes['avconv'] or self._exes['ffmpeg'], '-y', '-i', encodeFilename(path), '-vn']
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+ acodec_opts + more_opts +
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['--', encodeFilename(out_path)])
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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stdout,stderr = p.communicate()
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if p.returncode != 0:
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msg = stderr.strip().split('\n')[-1]
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raise AudioConversionError(msg)
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@ -121,7 +127,7 @@ def run(self, information):
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# Lossless, but in another container
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acodec = 'copy'
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extension = self._preferredcodec
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more_opts = ['-absf', 'aac_adtstoasc']
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more_opts = [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
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elif filecodec in ['aac', 'mp3', 'vorbis']:
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# Lossless if possible
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acodec = 'copy'
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@ -136,18 +142,18 @@ def run(self, information):
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extension = 'mp3'
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more_opts = []
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if self._preferredquality is not None:
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more_opts += ['-ab', self._preferredquality]
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality]
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else:
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# We convert the audio (lossy)
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acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
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extension = self._preferredcodec
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more_opts = []
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if self._preferredquality is not None:
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more_opts += ['-ab', self._preferredquality]
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more_opts += [self._exes['avconv'] and '-b:a' or '-ab', self._preferredquality]
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if self._preferredcodec == 'aac':
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more_opts += ['-f', 'adts']
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if self._preferredcodec == 'm4a':
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more_opts += ['-absf', 'aac_adtstoasc']
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more_opts += [self._exes['avconv'] and '-bsf:a' or '-absf', 'aac_adtstoasc']
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if self._preferredcodec == 'vorbis':
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extension = 'ogg'
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if self._preferredcodec == 'wav':
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@ -156,7 +162,7 @@ def run(self, information):
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prefix, sep, ext = path.rpartition(u'.') # not os.path.splitext, since the latter does not work on unicode in all setups
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new_path = prefix + sep + extension
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self._downloader.to_screen(u'[ffmpeg] Destination: ' + new_path)
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self._downloader.to_screen(u'[' + self._exes['avconv'] and 'avconv' or 'ffmpeg' + '] Destination: ' + new_path)
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try:
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self.run_ffmpeg(path, new_path, acodec, more_opts)
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except:
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@ -164,7 +170,7 @@ def run(self, information):
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if isinstance(e, AudioConversionError):
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self._downloader.to_stderr(u'ERROR: audio conversion failed: ' + e.message)
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else:
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self._downloader.to_stderr(u'ERROR: error running ffmpeg')
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self._downloader.to_stderr(u'ERROR: error running ' + self._exes['avconv'] and 'avconv' or 'ffmpeg')
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return None
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# Try to update the date time for extracted audio file.
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@ -293,11 +293,11 @@ def _find_term_columns():
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postproc.add_option('--extract-audio', action='store_true', dest='extractaudio', default=False,
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help='convert video files to audio-only files (requires ffmpeg and ffprobe)')
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help='convert video files to audio-only files (requires ffmpeg or avconv and ffprobe or avprobe)')
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postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
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help='"best", "aac", "vorbis", "mp3", "m4a", or "wav"; best by default')
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postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='128K',
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help='ffmpeg audio bitrate specification, 128k by default')
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help='ffmpeg/avconv audio bitrate specification, 128k by default')
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postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
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help='keeps the video file on disk after the post-processing; the video is erased by default')
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