Vlăduţ Frăţiman <fratiman.vladut <at> gmail.com> writes: $ ./ffmpeg -y -f v4l2 -video_size 640x360 -framerate 5 \ > -ts mono2abs -i /dev/video0 \ > -f alsa -ac 1 -i hw:1,0 \
> Input #0, video4linux2,v4l2, from '/dev/video0': > Duration: N/A, start: 1424715824.973374 > Input #1, alsa, from 'hw:1,0': > Duration: N/A, start: 1424715814.786186 On my system, the start times are nearly identical, the difference is <0.02 seconds. If the difference is constant (when you run ffmpeg several times), you can use -itsoffset or the setpts filter to correct the timestamps. I suspect this is an issue with the driver of your multimedia (v4l2) device, but I don't know enough about this. Maybe -vsync 0 works better but this would be a workaround, not a solution. Carl Eugen _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
