Quote:
Originally Posted by Kalasnyikov
It's true, but I don't have endless HDD space, and the file size different is very impressive. Make some test and if the old file is 3.2 Gb the new file is 600-800Mb, with almost same quality. The "almost" meaning: when grabbing sample pictures I notice some artifact, but when I seeing on my TV no different.
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Using "veryfast" is going to throw away a lot of quality. Have you tried somewhat slower presets to verify that they don't yield acceptable throughput? A lot of the good stuff in x265 doesn't even engage at that low a preset. For example, psy-rd doesn't activate unless rd is at least 3, which doesn't come in until preset medium. You'll get better looking and smaller CRF 22 if you can go up a couple of presets. Honestly, I feel like "slower" is where x265 really is able to strut its stuff pretty fully.
Otherwise, these seem pretty good for 480p-1080p to me.
I think it's probably okay to use ctu=64 and qgsize=32 at 1080p now, although sticking with your current values for 720p is probably good.