[FFmpeg-user] ffmpeg record from usb webcam give huge sync problem

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Feb 23 00:55:20 CET 2015


Vlăduţ Frăţiman <fratiman.vladut <at> gmail.com> writes:

> Input #0, video4linux2,v4l2, from '/dev/video0':
>   Duration: N/A, start: 367.470086

> Input #1, alsa, from 'hw:1,0':
>   Duration: N/A, start: 1424641531.273806

Please test "ffmpeg -ts abs -i /dev/video0" 
to fix the v4l2 timestamps (or -ts mono2abs).

Carl Eugen


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