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Old 12th July 2020, 16:04   #29609  |  Link
jdobbs
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Join Date: Oct 2001
Posts: 20,973
Quote:
Originally Posted by Sharc View Post
Possibly using the same (or similar) prediction algorithm which has been available since long for CPU based x264 CRF encodes?
Yeah. I built a prediction algorithm for BD Rebuilder so it could do targeted sizing using CRF in X264/X265. So for NVENC, I just had to do a large group of sample encodes in order to build its prediction tables.

I've done several tests and it seems to be working well enough. I also modified the way in which HEVC sources are sampled -- AVISYNTH's SelectRangeEvery() was getting terrible picture glitches with hevc, and I couldn't use if for UHD-BD anyway, because it didn't support HDR.
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Last edited by jdobbs; 12th July 2020 at 16:08.
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