I'm trying to convert a batch of .m4a files to .mp3, and from what I see in the documentation (and the example
here ), it looks like ffmpeg should be able to do it. Unfortunately, this happens:
Code:
pi314159$ ffmpeg -i Flood\ -\ They\ Might\ Be\ Giants\ -\ Twisting.m4a -target mp3 twisting.mp3
ffmpeg version CVS, build 3276800, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --build i486-linux-gnu --enable-gpl --enable-pp --enable-zlib --enable-vorbis --enable-libogg --enable-theora --enable-a52 --enable-dts --enable-dc1394 --enable-libgsm --disable-debug --prefix=/usr
built on Sep 29 2005 03:25:16, gcc: 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)
Input #0, mov,mp4,m4a,3gp,3g2, from 'Flood - They Might Be Giants - Twisting.m4a':
Duration: 00:01:56.8, start: 0.000000, bitrate: 127 kb/s
Stream #0.0: Audio: mp4a / 0x6134706D, 44100 Hz, stereo
Assuming PAL for target.
Unknown target: mp3
Or, when I try to copy the example from the site I linked above:
Code:
pi314159$ ffmpeg -i Flood\ -\ They\ Might\ Be\ Giants\ -\ Twisting.m4a -acodec mp3 -ac 2 -ab 128 twisting.mp3
ffmpeg version CVS, build 3276800, Copyright (c) 2000-2004 Fabrice Bellard
configuration: --build i486-linux-gnu --enable-gpl --enable-pp --enable-zlib --enable-vorbis --enable-libogg --enable-theora --enable-a52 --enable-dts --enable-dc1394 --enable-libgsm --disable-debug --prefix=/usr
built on Sep 29 2005 03:25:16, gcc: 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)
Input #0, mov,mp4,m4a,3gp,3g2, from 'Flood - They Might Be Giants - Twisting.m4a':
Duration: 00:01:56.8, start: 0.000000, bitrate: 127 kb/s
Stream #0.0: Audio: mp4a / 0x6134706D, 44100 Hz, stereo
Output #0, mp2, to 'twisting.mp3':
Stream #0.0: Audio: 0x0000, 44100 Hz, stereo, 128 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Unsupported codec for output stream #0.0
This is making me think that ffmpeg isn't understanding the mp3 format, but how can that possibly be? Even if it's a problem with the m4a format, I should be okay according to
this , since I have libfaad installed.
For the record, these files I'm trying to convert are ones I ripped from CD in iTunes, so they're in the annoying AAC/m4a format, if that makes any difference.
Ideas, anyone?
pi
ffmpeg complains about codec
