[FFmpeg-user] taking audio and video inputs from different devices

Carl Eugen Hoyos cehoyos at ag.or.at
Tue Jul 28 18:04:03 CEST 2015

Ricardo Kleemann <ricardo <at> americasnet.com> writes:

> ffmpeg -f avfoundation -i "none:1" -f decklink -i 

You could try to move -vsync 0 in front of the 
first input.

If this does not help, it may be possible to insert 
the setpts filter to make the timestamp of the first 
frame "0" (so it matches the audio starting timestamp).

Carl Eugen

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