Automatic conversion of aac to m4a

dinkypumpkin dinkypumpkin at gmail.com
Mon Mar 14 17:29:25 EDT 2011


Thanks for that pointer.  I did some more tests and it seems that I will have to eat my words.  The HEAD version of ffmpeg does in fact produce files that work in Mac iTunes (I fat-fingered something in my test script earlier).  I also verified that files produced by the Windows ffmpeg version you referenced will work in Mac iTunes, while files from Mac ffmpeg 0.6.1 will not.  

I tested a bit further by splicing ffmpeg into Nick's code (in place of mp4box), and it worked fine for a few random programmes I downloaded.  None of the 3 ffmpeg versions could remux directly from FLV files (I don't know if they even should), so Nick's logic in processing the normal AAC file (with dubious container) just before tagging still seems to work.

So it appears that somewhere between 10 Oct (0.6.1 release) and 4 Feb (date of Windows build), something was committed to ffmpeg code that makes this work.  It's slightly unfortunate if the release version of ffmpeg won't do the trick.  I've made a pull request to update the ffmpeg install formula for Homebrew to point to the new git repository.  The updated formula - when published - will be of some help to Mac users, at least those who use Homebrew.  FWIW, Homebrew makes it fairly easy to build Mac versions of get_iplayer dependencies.


On 14 Mar 2011, at 18:38, Shevek wrote:

> Incidentally, I'm actually using the latest ffmpeg build from the
> mplayer-win32 archives [1]
> 
> Shevek
> 
> [1] http://sourceforge.net/projects/mplayer-win32/files/FFmpeg/




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