[FFmpeg-user] how to create black video and one slient piece of audio

[Moritz Barsnick]

On Fri, Jul 31, 2015 at 09:23:10 +0200, Paul B Mahol wrote:
> > How to merge multiple mp4 files into one mp4 file without video/audio
> > encoding or decoding?
> 
> See ffmpeg's concat demuxer documentation.

And a lot of info in the wiki:
https://trac.ffmpeg.org/wiki/Concatenate

Moritz