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Diffstat (limited to 'youtube_dl')
-rwxr-xr-xyoutube_dl/__init__.py17
1 files changed, 12 insertions, 5 deletions
diff --git a/youtube_dl/__init__.py b/youtube_dl/__init__.py
index ecc000fb8..3fed554df 100755
--- a/youtube_dl/__init__.py
+++ b/youtube_dl/__init__.py
@@ -3968,8 +3968,13 @@ class FFmpegExtractAudioPP(PostProcessor):
return None
more_opts = []
- if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
- if filecodec in ['aac', 'mp3', 'vorbis']:
+ if self._preferredcodec == 'best' or self._preferredcodec == filecodec or (self._preferredcodec == 'm4a' and filecodec == 'aac'):
+ if self._preferredcodec == 'm4a' and filecodec == 'aac':
+ # Lossless, but in another container
+ acodec = 'copy'
+ extension = self._preferredcodec
+ more_opts = ['-absf', 'aac_adtstoasc']
+ elif filecodec in ['aac', 'mp3', 'vorbis']:
# Lossless if possible
acodec = 'copy'
extension = filecodec
@@ -3986,13 +3991,15 @@ class FFmpegExtractAudioPP(PostProcessor):
more_opts += ['-ab', self._preferredquality]
else:
# We convert the audio (lossy)
- acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'vorbis': 'libvorbis'}[self._preferredcodec]
+ acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'vorbis': 'libvorbis'}[self._preferredcodec]
extension = self._preferredcodec
more_opts = []
if self._preferredquality is not None:
more_opts += ['-ab', self._preferredquality]
if self._preferredcodec == 'aac':
more_opts += ['-f', 'adts']
+ if self._preferredcodec == 'm4a':
+ more_opts += ['-absf', 'aac_adtstoasc']
if self._preferredcodec == 'vorbis':
extension = 'ogg'
@@ -4239,7 +4246,7 @@ def parseOpts():
postproc.add_option('--extract-audio', action='store_true', dest='extractaudio', default=False,
help='convert video files to audio-only files (requires ffmpeg and ffprobe)')
postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
- help='"best", "aac", "vorbis" or "mp3"; best by default')
+ help='"best", "aac", "vorbis", "mp3", or "m4a"; best by default')
postproc.add_option('--audio-quality', metavar='QUALITY', dest='audioquality', default='128K',
help='ffmpeg audio bitrate specification, 128k by default')
postproc.add_option('-k', '--keep-video', action='store_true', dest='keepvideo', default=False,
@@ -4385,7 +4392,7 @@ def _real_main():
except (TypeError, ValueError), err:
parser.error(u'invalid playlist end number specified')
if opts.extractaudio:
- if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis']:
+ if opts.audioformat not in ['best', 'aac', 'mp3', 'vorbis', 'm4a']:
parser.error(u'invalid audio format specified')
# File downloader