On Mon, Mar 14, 2016 at 18:23:45 +0100, Thomas Seilund wrote: > My question is how can I make sure that the videos are synced correctly. > I am not able to start capturing at the same time, so I can not be sure > that the videos from each camera cover exactly the same period.
If the clocks on the various devices are synchronized with NTP, and you are capturing with video4linux2, you can ensure that the timestamps are taken from the devices' wallclocks. I'm not absolutely sure how to get ffmpeg to always take the images with the same/similar timestamp when overlaying the videos next to each other. Perhaps you just need to check the timestamps, and then apply an offset those videos which didn't start last with "-ss <offset>". I haven't thought this all the way through. It's be easier if I could actually try it. You'll have to wait for someone else to pitch in. Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user
