Doom9's Forum - View Single Post - --crf encoding producing larger files in new revisions

akupenguin · 22nd January 2007, 18:38

Ratecontrol has not changed, except in that it indirectly uses some results from B-adapt.
r607 did change B-adapt. It was only sort of intentional: I had to change some parts of the algorithm in order to implement threading, but I tried not to change the results.
If people conclude that quality-per-bitrate has suffered, I'll go and tweak it some more. Otherwise, just accept that CRF has changed scale (it always was arbitrary).

22nd January 2007, 18:38	#4 \| Link
akupenguin x264 developer Join Date: Sep 2004 Posts: 2,392	Ratecontrol has not changed, except in that it indirectly uses some results from B-adapt. r607 did change B-adapt. It was only sort of intentional: I had to change some parts of the algorithm in order to implement threading, but I tried not to change the results. If people conclude that quality-per-bitrate has suffered, I'll go and tweak it some more. Otherwise, just accept that CRF has changed scale (it always was arbitrary). Last edited by akupenguin; 22nd January 2007 at 18:44.