I further cut that chunk into a 1 minute chunk (-to) when I realized how huge a 10 minute YUV file was going to be.įfmpeg -i LOTR-Test.mkv -an -to 00:01:00 "D:\SVT-VP9\LOTR-Test.y4m The original source file chain was an MKV dump of one of my Lord of The Rings discs, which I cut into a 10 minute chunk of video (-ss -to )for testing purposes with various encoding schemes. y4m for this, which is a yuv file but with metadata headers. I can't seem to get it to play nice in that regardĭid you specify the fps of the YUV? YUV doesn't have any metadata, so you need to manually specify fps along with a whole lot of other stuff. When I dump the input mkv file to YUV with ffmpeg it seems to want to assign it the 23.98 fps at that point. Any audio tool like Audition or Audacity can also resample your audio 0.1% faster another way to fix your problem. If I just tell it 24, ffmpeg will take it, but then the audio from the original source will be off by 1 second (source clip is 10 minutes, video file comes out to 9m59s)īecause you sped up the fps by 0.1%, and the video isn't. How does ffmpeg not like it? Ffmpeg has had excellent support for fractional framerates for as long as I can remember. If I specify -fps-num 24000 -fps-denom 1001 it will output a file with 23.98 fps which ffmpeg does not like. But I'm having trouble with setting the proper FPS. I've been playing with some compiled binaries my friend managed to find for me.
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