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CruNcher · 19th November 2009, 19:40

x264 0.72.1222 d0ee6f8
built on Aug 20 2009, gcc: 3.4.6

encoded 2419 frames, 11.20 fps, 2949.58 kb/s

x264 0.79.1342 e8501ef
built on Nov 16 2009, gcc: 3.4.6

encoded 2419 frames, 8.73 fps, 2951.58 kb/s

Whats going on i triple checked this and it definitely got a lot slower @ crf, is really the weightp addition the cause of this slowdown ?

im using this encoding settings

x264.exe "%SourceVideo%" --crf 24 --preset veryfast --profile high --cabac -m 3 --no-deblock --weightp 2 --8x8dct -b 3 --aq-mode 2 --ssim --psnr --partitions i8x8,i4x4,p8x8 -o "%SourceVideo%.mp4"

i also have to explicitly force --weightp 2 else only wpredb seems to be used but no wpredp

here the analyse data i couldn't see any difference visually between the encodes but first realized this heavy slowdown

(Ben Waggoners Dreamworks The Island Trailer)

x264 [info]: i16 v,h,dc,p: 35% 26% 16% 23%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 18% 28% 6% 6% 7% 7% 6% 7%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 20% 12% 7% 9% 9% 9% 7% 8%
x264 [info]: Weighted P-Frames: Y:8.4%

19th November 2009, 19:40	#69 \| Link
CruNcher Registered User Join Date: Apr 2002 Location: Germany Posts: 4,926	x264 0.72.1222 d0ee6f8 built on Aug 20 2009, gcc: 3.4.6 encoded 2419 frames, 11.20 fps, 2949.58 kb/s x264 0.79.1342 e8501ef built on Nov 16 2009, gcc: 3.4.6 encoded 2419 frames, 8.73 fps, 2951.58 kb/s Whats going on i triple checked this and it definitely got a lot slower @ crf, is really the weightp addition the cause of this slowdown ? im using this encoding settings x264.exe "%SourceVideo%" --crf 24 --preset veryfast --profile high --cabac -m 3 --no-deblock --weightp 2 --8x8dct -b 3 --aq-mode 2 --ssim --psnr --partitions i8x8,i4x4,p8x8 -o "%SourceVideo%.mp4" i also have to explicitly force --weightp 2 else only wpredb seems to be used but no wpredp here the analyse data i couldn't see any difference visually between the encodes but first realized this heavy slowdown (Ben Waggoners Dreamworks The Island Trailer) x264 [info]: i16 v,h,dc,p: 35% 26% 16% 23% x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 15% 18% 28% 6% 6% 7% 7% 6% 7% x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 20% 12% 7% 9% 9% 9% 7% 8% x264 [info]: Weighted P-Frames: Y:8.4% __________________ all my compares are riddles so please try to decipher them yourselves :) It is about Time Join the Revolution NOW before it is to Late ! http://forum.doom9.org/showthread.php?t=168004 Last edited by CruNcher; 19th November 2009 at 20:00.