[FFmpeg-user] force video format

Madovsky infos at madovsky.org
Wed Feb 6 06:14:21 CET 2013


I'm trying to overlay 2 streams but sometimes
one stream or bot contains audio only.
as I'm making an overlay so it fails saying
that :0 has no stream.

is there any way to tell ffmpeg to force a video format like -f flv -i ....
and put a 1 frame image in case of there is no video ?
or is it need a script condition for that ?



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