Les articles publiés sur le site
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5 août 2015, par Yunqing Wang
Changed Paths:
Modify /vp9/encoder/vp9_mcomp.c
Improve the second-level sub-pixel motion search
Re-investigated the second-level sub-pixel motion search. Improved the
way of choosing search points. Rewrote the second-level search code.
At speed 0, the borg tests showed:
1. for stdhd set, Avg PSNR gain: 0.216%; Overall PSNR gain: 0.196%;
SSIM gain: 0.206%. Only 1 out of 15 clips showed PSNR loss.
2. for derf set, Avg PSNR gain: 0.171%; Overall PSNR gain: 0.192%;
SSIM gain: 0.207%. Only 3 out of 30 clips showed PSNR losses.
Added the condition for third-point checking, namely, less points
were checked. Speed tests showed no speed loss(Avg 0.3% speedup at
speed 0).
Change-Id: I6284ebb3fa7ba63be8528184c49e06757211a7f1
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5 août 2015, par James Zern
Changed Paths:
Modify /vpx_dsp/x86/vpx_convolve_copy_sse2.asm
Revert "VP9_COPY_CONVOLVE_SSE2 optimization"
This reverts commit a5e97d874b16ae5826b68515f1e35ffb44361cf8.
Additionally:
Revert "vpx_convolve_copy_sse2: fix win64"
This reverts commit 22a8474fe7ec30d96f746dc6e4b23771758c071e.
This change performs poorly on various x86_64 devices affecting
performance by 1-3% at 1080P. Performance on chromebook like devices was
mixed neutral to slightly negative, so there should be minimal change
there.
Change-Id: I95831233b4b84ee96369baa192a2d4cc7639658c
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5 août 2015, par James Zern
Merge "third_party/libwebm: pull from upstream"
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5 août 2015, par James Zern
Changed Paths:
Modify /examples.mk
Merge "examples.mk: quiet vcproj script exec by default"
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Changed Paths:
Modify /vp9/encoder/vp9_pickmode.c
Adjustments for VP9 temporal layers, for 1 pass CBR
Adjust logic for golden reference usage in non-rd pickmode,
under svc mode.
Change-Id: If012e21e8123a0684634af0ac7ed3da9c8c7d7cc
