[FFmpeg-user] Looking to change QT audio files from 4 mono chanels to 4 discrete chanels

[Lou]

On Tue, 27 Jan 2015 15:46:46 +0000
Esnault Jean-Manuel <Jean-Manuel.Esnault at francetv.fr> wrote:

> Hello All,
> 
> I'm looking for help.
> 
> I have a set of QT files with 4 audio mono chanels (uncompressed 48kHz).
> I need to turn these files into 4 discrete audio chanels.
> 
> This can be done manually into QT7 (but it's quite long to change each chanel of each file).
> 
> I wonder if ffmpeg could do this, without recoding the video or the audio.
> 
> Any help appreciated.
> Thanks in advance

Please show some info about your input(s) and your ffmpeg build. The
complete output of:

ffmpeg -i input