Re: [Audacity-devel] FFmpeg export GSM, AMR and MP4 on Windows

[LRN <lr...@gm...>]

ga...@au... wrote:
> Prefs sees FFmpeg 51.57-2. I use Leland's:
> http://audacity.homerow.net/index.php?dir=windows%2F&download=avformat-06.10.2008.zip
>    
./configure --disable-static \
             --disable-debug \
             --enable-shared \
             --enable-memalign-hack \
             --enable-gpl

This is the configure arguments used by Leland to build its version of 
avformat. As you can see, there's no libgsm, libfaac, libfaad, etc. That 
is why FFmpeg can't find necessary audio codecs - they are not compiled in.

It is advised to use
http://lrn.1986.li/other/gsoc/ffmpegcity/ffmpeg/distributable/avformat.win32.git-eed2c69.audio.static.bin.7z
if you want static version
or
<http://lrn.1986.li/other/gsoc/ffmpegcity/ffmpeg/distributable/ffmpeg.win32.r13140.audio-only.gpl.bin.7z>http://lrn.1986.li/other/gsoc/ffmpegcity/ffmpeg/distributable/ffmpeg.win32.r13140.audio-only.gpl.bin.7z
and
http://lrn.1986.li/other/gsoc/ffmpegcity/ffmpeg/distributable/ffmpeg.win32.r13140.audio-only.dependencies.7z
if you want shared version. Static is better (easier to load, plus it is 
more recent than shared).