[FFmpeg-user] overlay audio channels

Kosta Vlotis kosta.brazzers at gmail.com
Fri Aug 3 18:42:39 CEST 2012

i have a question i know is a bit strange.

i was wondering if it's possible to overlay 2 audio channels in the
same video with ffmpeg.

Example: videoX has left audio channel: X and right audio channel: Y

i would like to make it so that it looks like: left audio channel=xy
and right audio channel=xy

i know that setting "-ac 1" pretty much accomplishes this BUT the
metadata obviously shows mono. i'd like to accomplish the same but
with stereo instead of mono.

any ideas?

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