Hi James, On Fri, Oct 16, 2020 at 03:11:36 -0500, jamesfowkes wrote: > Further to this, I've managed to get a still frame to record into timestamped > segments using: > > ffmpeg -loop 1 -i frame.png -reset_timestamps 1 -vcodec libx264 -f segment > -segment_time 60 -strftime 1 +%Y-%m-%d_%H-%M-%S.mp4 > > But while the segments are 60 seconds of wallclock time long, they are > record much faster than that, taking (on my laptop) about 30 seconds to > actually record, meaning I have ~120 seconds of video every 60 seconds of > elapsed wallclock time.
That means you want your segments to not be finished too early? Is that really a requirement? > If I add the "-re" and "-vsync 0" options: Why did you add the vsync option? What did it change (without "-re")? > The speed is just slightly lower than 1x (around 0.98x), resulting in very > slightly truncated files. This is no so much of an issue, but again would be > good to solve. I don't see why this should not hit 1.0x, except for slight variations. You could try the "realtime" filter instead of "-re". It defaults to 1.0x and might hit more precisely. If not, you can manipulate it with its "speed" parameter, e.g. "-vf realtime=speed=1.01". Cheers, Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
