Speed test shows the new vertical filters have degradation on Celeron
Chromebook. Added "X86_SUBPIX_VFILTER_PREFER_SLOW_CELERON" to control
the vertical filters activated code. Now just simply active the code
without degradation on Celeron. Later there should be 2 set of vertical
filters ssse3 functions, and let jump table to choose based on CPU type.
Change-Id: Iba2f1f2fe059a9d142c396d03a6b8d2d3b981e87
Due to rounding, hbd variance may become negative. This commit put in
check and clamp of negative values to 0.
Change-Id: I610d9c8aa2d4eebe7bc5f2c5624a9e3cadad4c94
For forced key frames in particular this helps to make them
blend better with the surrounding frames where noise tends
to be suppressed by a combination of quantization and alt
ref filtering.
Currently disabled by default under and IFDEF flag pending
wider testing.
Change-Id: I971b5cc2b2a4b9e1f11fe06c67ef073f01b25056
Bug fix: The crash is caused by not allocating buffer for prev_mip in
postproc_state and prev_mip in postproc_state is only used for MFQE,
ohter postproc modules, deblocking and etc., should not use it.
BUG=webm:1251
Change-Id: I3120d2f50603b4a2d400e92d583960a513953a28
add a trailing ':', though it's optional with the tools we support, it's
more common to use it to mark a label. this also quiets the
orphan-labels warning with nasm/yasm.
BUG=b/29583530
Change-Id: I46e95255e12026dd542d9838e2dd3fbddf7b56e2
For real-time mode, increase variance threshold for 32x32 blocks in
var-based partitioning for resolution >= 720p, so that it is more
likely to stay at 32x32 for high resolution which accelerates the
encoding speed with little/no PSNR drop.
PSNR effect on different speed settings:
speed 8 rtc: 0.02 overall PSNR drop, 0.285% SSIM drop
speed 7 rtc: 0.196% overall PSNR increase, 0.066% SSIM increase
speed 5 rtc_derf: no effect.
Speed up:
gips_motion_WHD, 1mbps: 2.5% faster on speed 7, 2.6% faster on speed8
gips_stat_WHD, 1mbps: 4.6% faster on speed 7, 5.6% faster on speed8
Change-Id: Ie7c33c4d2dd7d09294917e031357fc5476c3a4bb
Avoids a segfault in high-bitdepth builds.
This restores the condition to its state prior to:
7991241 vp9: Change the scheme for modeling rd for bsize 32x32.
BUG=webm:1250
Change-Id: I6183d5b34cb89dfbf27b7bb589812148a72cd7de
This reverts commit 1517fb74fd40eaab67246e8fb81d5c321bb33b06.
Fixes a segfault in windows x64 builds.
Change-Id: I6a6959cd7e64a28376849a9f2b11fc852a7c1fbe
For real-time CBR mode, use model_rd_for_sb_y_large instead of
model_rd_for_sb_y for 32x32 block. In the former model, transform
might be skipped more aggressively in some condtions, which speeds
up encoding time with only a little PSNR/SSIM drop on rtc test set.
No obvious visual quality regression.
PSNR effect on different speed settings:
speed 8 rtc: 0.129% overall PSNR drop, 0.137% SSIM drop
speed 7 rtc: 0.135% overall PSNR drop, 0.062% SSIM drop
speed 5 rtc_derf: 0.105% overall PSNR drop, 0.095% SSIM drop
Speed up:
gips_motion_WHD, 1mbps: 3.29% faster on speed 7, 2.56% faster on speed8
gips_stat_WHD, 1mbps: 2.17% faster on speed 7, 1.62% faster on speed8
BUG=webm:1250
Change-Id: I818babce5b8549b4b1a7c3978df8591bffde7173
