Is RGB->YUY2->YV12 more accurate than RGB->YV12?

osgZach · 16th January 2014, 20:11

edit: Actually I need to ammend this while I verify something. But if anyone can comment on the question in the title that would be swell.

Gavino · 16th January 2014, 20:42

Is RGB->YUY2->YV12 more accurate than RGB->YV12?

In v2.58, RGB->YV12 is done internally via YUY2 anyway, so both give the same result.

In v2.60, RGB->YV12 uses YV24 as intermediate.
Chroma subsampling is done using bicubic (by default) with proper antialiasing, so should be better than the bilinear without antialiasing done in RGB->YUY2->YV12.

osgZach · 16th January 2014, 21:25

Interesting. Thanks.

16th January 2014, 20:11	#1 \| Link
osgZach Registered User Join Date: Feb 2009 Location: USA Posts: 676	Is RGB->YUY2->YV12 more accurate than RGB->YV12? edit: Actually I need to ammend this while I verify something. But if anyone can comment on the question in the title that would be swell. Last edited by osgZach; 16th January 2014 at 20:17.

16th January 2014, 20:42	#2 \| Link
Gavino Avisynth language lover Join Date: Dec 2007 Location: Spain Posts: 3,444	Is RGB->YUY2->YV12 more accurate than RGB->YV12? In v2.58, RGB->YV12 is done internally via YUY2 anyway, so both give the same result. In v2.60, RGB->YV12 uses YV24 as intermediate. Chroma subsampling is done using bicubic (by default) with proper antialiasing, so should be better than the bilinear without antialiasing done in RGB->YUY2->YV12. __________________ GScript and GRunT - complex Avisynth scripting made easier

16th January 2014, 21:25	#3 \| Link
osgZach Registered User Join Date: Feb 2009 Location: USA Posts: 676	Interesting. Thanks.