[FFmpeg-user] Converting ProRes 422 to mp4

[Carl Eugen Hoyos]

 <saikari.hakala <at> laposte.net> writes:

> c:\ffmpeg\bin\ffmpeg.exe -i test.mov -c:v libx264 
> -preset slow -crf 22 -c:a copy  test.mp4 

>     Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 
> 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s (default) 

You cannot put pcm_s24le into mp4, this is not a limitation 
of FFmpeg.
Use mov or another audio codec.

Carl Eugen