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Old 6th January 2019, 20:22   #6  |  Link
sneaker_ger
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Join Date: Dec 2002
Posts: 5,565
Quote:
Originally Posted by FLX90 View Post
I tried this and 58 % of the frames are variable?

Code:
ffmpeg -i OLD_BOY.Title0.mkv -vf vfrdet -f null -
[Parsed_vfrdet_0 @ 0000000003174400] VFR:0.583336 (100580/71842) min: 41 max: 42)
That's probably just some jitter because mkv container cannot accurately store constant 24/1.001 fps.
1000ms/(24/1.001)= 41.70833333333333333.....ms
Mkv will store it so the frame durations switch between 41ms and 42ms so that on average it is 41.7083....ms. Technically it is vfr, but for practical purposes it is cfr (as was the original source).

If you are unsure just leave the fps settings alone.

Quote:
Originally Posted by FLX90 View Post
Just for comprehension.
--bitrate 16997 would be worse quality than the original VC-1.
--bitrate 16999 wouldn't be better quality than the original VC-1 and would just waste space?.
Lossy AVC re-encode will always lose information from original. Whether you encode with 16997, 16999 or 10000000 kbps. But 10000000 will lose less information than 16997.

At ~17 Mbps a human will usually not notice any difference to the original Blu-Ray, though, so that's ok. That's your goal, right?
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