Quote:
Originally Posted by nevcairiel
H264 has Film Grain Modelling, just noone ever used it because its hard to use correctly.
Maybe we get more lucky this time around and enough engineering time is put into it...
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AV1's implementation is quite a bit better, from people I've talked to who have looked at both. Also, grain removal itself is quite computationally expensive and algorithmically complex, and is a
lot more feasible today than it was in 2006 when FGM was a required (but never used) feature of H.264 for HD-DVD.
It wasn't mandatory anywhere else, which also was a huge barrier to adoption. It likely could have become quite useful for 720p streaming circa 2010. Fewer pixels, more MIPS, bigger bitrate challenges.
It's easy to forget that we have >100x more compute available per pixel for 1080p than we did when the HD optical formats launched. I bet the typical AV1 pixel gets >>1000x more MIPS than a launch Blu-ray or HD-DVD.