The transform block row and column positions are always available
outside the callees. There is no need to re-compute these values
again. This approach has been used by the decoder. This commit
removes txfrm_block_to_raster_xy() function.
Change-Id: I5b90f91a0d8b7c35cfa7d171da9edf8202630108
The scaling of the threshold for 10 and 12 bit here appears
to be in the wrong direction. For 10 and 12 bit we expect sse
values to be higher and hence the threshold used should be
scaled up not down.
Change-Id: I2678116652b539aef48100e0f22873edd4f5a786
This function seems to scale the threshold for testing an
SSE value in the wrong direction for 10 and 12 bit inputs.
Also for a true SSE the scalings should probably be << 4 and 8
Change-Id: Iba8047b3f70d04aa46d9688a824f3d49c1c58e90
For real time CBR mode, use model_rd_for_sb_y for 32x32 if the mode is
newmv last, which is less aggressive in skipping transform and
quantization, to avoid quality regression in some conditions.
Change-Id: Ifa30be587f2a8a4a7f182a172de6ce277c0f8556
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
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
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
In vp9_pick_inter_mode(), instead of using
vp9_get_pred_context_switchable_interp(xd) to assign filter_ref,
we use a less strict condition on assigning filter_ref.
This is to reduce the probabily of entering the flow of not
assigning filter_ref and then skipping filter search.
Overall PSNR gain 0.074% for rtc dataset
Details:
Low Mid High
0.185% -0.008% -0.082%
Change-Id: Id5c5ab38d3766c213d5681e17b4d1afd1529e676
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 setting:
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
Change-Id: I902f62def225ea01c145d7e5a93497398b8f5edf
This commit adds an encoder workaround to support better
compatibility with a non-compliant hardware vp9 profile 2 decoder.
The known issue with this decoder is:
The decoder assumes a wrong value, 127 instead of the correct
value of 511 and 2047, for any assumed top-left corner pixel in
UV planes for 10 and 12 bit, respectively. Such assumed
top-left corner pixel is used for INTRA prediction when a real
decoded/reconstructed pixel is not avalable, e.g. when it is
located inside the row above the top row or inside the column
left to the leftest column of a video image.
Change-Id: Ic15a938a3107e1b85e96cb7903a5c4220986b99d
development has moved to the nextgenv2 branch and a snapshot from here
was used to seed aomedia
BUG=b/29457125
Change-Id: Iedaca11ec7870fb3a4e50b2c9ea0c2b056a0d3c0
