If you want a speedup factor of 3600, this is an appropriate ffmpeg command line to create such a timelapse video:įfmpeg -i input.mkv -filter:v "setpts=PTS/3600" -an -r 60 -c:v libx264 -preset slow -crf 10 timelapse.mp4 Or you wanted a speedup of 60 and didn't think of the fps of the final video. I assume you want to speed up time either by a factor of 3600, because you might want the final timelapse video be 60 fps, so from 1/60 fps (raw source) to 60 fps (final) is a factor of 3600. So you need to speed the video up with some postprocessing software - OBS itself isn't able to do that. If you just tell OBS to record at 1/60 fps, any media player will show every frame for 1 minute, then go to the next frame. In a timelapse video, not only the source fps is important, it's also the fps of the intended timelapse. You seem to want to create a timelapse video. You found the correct way to use 1/60 as fps, and it's correct OBS becomes slow and clumsy.
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