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

[Carl Eugen Hoyos]

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