[FFmpeg-user] FFmpeg produces m4a files that won't play on 2nd generaton iPod Shuffle Model A1204.
batguano999 at hotmail.com
Mon Mar 28 19:47:12 CEST 2011
> Did you try using qt-faststart on the files created ? Does it work ?
Thanks for your reply Baptiste.
I've just applied qt-faststart to the file that won't play, as you suggested.
This was the result:-
@ubuntu:~$ qt-faststart test1.m4a outfile.m4a
ftyp 0 24
free 24 8
mdat 32 629935
moov 629967 27781
patching stco atom...
writing ftyp atom...
writing moov atom...
copying rest of file...
So qt-faststart has done some work... but the modified file still won't play in the Shuffle.
The modified file is here:- http://www.mediafire.com/?l9q7sai9v7rf8ki
Also, if I convert files using faac instead of libfaac the files will play OK without any modification.
faac -o output.m4a foo.wav
And like this:-
ffmpeg -i foo.flac -f wav - | faac -o output.m4a -
Both those two methods are OK.
It's just when I use libfaac that gives the problem result.
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