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m4a: aac in mp4 container (Closes #240)
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@ -3968,8 +3968,13 @@ class FFmpegExtractAudioPP(PostProcessor):
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return None
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more_opts = []
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if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
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if filecodec in ['aac', 'mp3', 'vorbis']:
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if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
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if self._preferredcodec == 'm4a' and filecodec == 'aac':
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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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elif filecodec in ['aac', 'mp3', 'vorbis']:
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# Lossless if possible
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acodec = 'copy'
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extension = filecodec
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@ -3986,13 +3991,15 @@ class FFmpegExtractAudioPP(PostProcessor):
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more_opts += ['-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', 'vorbis': 'libvorbis'}[self._preferredcodec]
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acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis'}[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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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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if self._preferredcodec == 'vorbis':
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extension = 'ogg'
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@ -4239,7 +4246,7 @@ def parseOpts():
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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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postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
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help='"best", "aac", "vorbis" or "mp3"; best by default')
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help='"best", "aac", "vorbis", "mp3", or "m4a"; 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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postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
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@ -4385,7 +4392,7 @@ def _real_main():
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except (TypeError, ValueError), err:
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parser.error(u'invalid playlist end number specified')
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if opts.extractaudio:
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if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis']:
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if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a']:
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parser.error(u'invalid audio format specified')
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# File downloader
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