On 12/30/18, Nicolas George <george at nsup.org> wrote: > Paul B Mahol (2018-12-30): >> aformat for example use | to split channel layouts. > > Where? http://ffmpeg.org/ffmpeg-filters.html#aformat-1http://ffmpeg.org/ffmpeg-filters.html#aformat-1 Do you want to change above thing too? What you propose instead?