x265 HEVC Encoder

Blue_MiSfit · 9th November 2019, 05:04

Depends on the intended use case. If you're going for total transparency you might have a harder time. If you're trying to get down to 10-15 Mbps for 1080p you'll probably get good results with the grain tuning and some nice slow settings, but it might be hard to get a reduction if you're coming from a BluRay source.

Getting down to a lower bitrate without blowing up and maintaining some of the grain texture is usually possible, but always difficult. Grain is hard no matter what.

I'm hoping the film grain synthesis tools in AV1 get explored soon - I've always thought this was a great idea.

I also wonder if the new MPEG-5 LC-EVC / enhancement layer systems could be used to encode a cleaner version of the video and then grain synthesis information as an enhancement layer / noise model, kind of like V-Nova Perseus but tuned for grain.

9th November 2019, 05:04	#10 \| Link
Blue_MiSfit Derek Prestegard IRL Join Date: Nov 2003 Location: Los Angeles Posts: 5,989	Depends on the intended use case. If you're going for total transparency you might have a harder time. If you're trying to get down to 10-15 Mbps for 1080p you'll probably get good results with the grain tuning and some nice slow settings, but it might be hard to get a reduction if you're coming from a BluRay source. Getting down to a lower bitrate without blowing up and maintaining some of the grain texture is usually possible, but always difficult. Grain is hard no matter what. I'm hoping the film grain synthesis tools in AV1 get explored soon - I've always thought this was a great idea. I also wonder if the new MPEG-5 LC-EVC / enhancement layer systems could be used to encode a cleaner version of the video and then grain synthesis information as an enhancement layer / noise model, kind of like V-Nova Perseus but tuned for grain.