X265 -p slow -bitrate 500 -psnr -ssim big_buck_bunny_1080p24.y4m bb2.hevc -tune cartoon -qg-size 64 X265 -p slow -bitrate 500 -psnr -ssim big_buck_bunny_1080p24.y4m bb1.hevc -tune cartoon PSNR and SSIM are better with qg-size 64.

With default qg-size 32 the birds looks better but with qg-szie 64 even better. With qg-size 16 and low bitrate they are fading/disappear too soon and they are not consistent in time/position. At the beginning in big_buck_bunny_1080p24.y4m there are two birds in top right corner (they flying very far from 'camera'). PSNR and SSIM was better with tune anime but for me the quality was wrong. I've made tests with fixed bitrate - encoding big_buck_bunny_1080p24.y4m with '-tune anime' and without (old tune anime that now I renamed to cartoon). Is setting qg-size to 64 a benefit to compression, quality, or both? There have been some great improvement by the x265 devs over the last couple of years imo, bravo! The days were x265 just wasnt a good option for high quality (detail retention) 1080p encodes are long gone imo. It's official I'm switching to x265 even for 1080p blurays rips now. And x265 retained visable more detail in the more apples to apples 2pass test.

preset slow -profile main10 -level-idc 41 -bitrate 7000 -keyint 240 -min-keyint 24 -rc-lookahead 48 -no-saoīoth CRF encodes were pretty much visually lossless, but with a 30% bitrate reduction with x265 (10Mbps vs 7Mbps). preset veryslow -profile high -level 4.1 -bitrate 7000 -keyint 240 -min-keyint 24 -rc-lookahead 48 -tune film preset slow -profile main10 -level-idc 41 -crf 18 -keyint 240 -min-keyint 24 -rc-lookahead 48 -no-sao preset slow -profile high -level 4.1 -crf 18 -keyint 240 -min-keyint 24 -rc-lookahead 48 -tune film Code: x264 crf18 settings (my usual settings for 1080p rips)

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