This commit fixed the mis-use of the tx_type for inverse transform
in intra4x4 rate-distortion optimization loop. It improves the
overall coding performance.
Change-Id: I7fe9953175b74890357dbcee33c138573766e980
Adds a speed feature to eliminate full-rd computation if the modeled
rd or rd based on a different parameter in the same mode is already
a lot larger than the best rd yet.
Specifically, only search the sharp and smooth filters if the modeled
rd cost based on the regular filter is within a certain factor of the
best rd cost so far. Also, skip full-rd computation of non splitmv
inter modes if the modeled rd cost based on pred error is within the
same factor of the best rd cost so far.
Also adds some enhancements in the rd search for splitmv mode to
speed things up by early breakouts. Negligible impact on performance.
Resuts on derfraw300:
psnr: -0.013% with the splitmv enhancements, -0.24% with the rd
breakout feature on.
speedup: 6% with splitmv enhancements, 20% with also residual breakout
(tested on football sequence at 600 Kbps)
Change-Id: I37abc308ea9f110c1679ce649b6a7e73ab1ad5fc
This commit enables 16x16 ADST/DCT forward hybrid transform using SSE2
operations. It reduces the runtime from 5433 cycles to 1621 cycles, at
no compression performance loss.
Change-Id: I75fd7f1984e9e28846af459f810ff0d6ae125230
Encode time of first 50 frames of bus (speed 0) @ 1500kbps goes from
2min4.9 to 2min3.1, i.e. a 1.4% speedup overall.
Change-Id: I9b25e87974430cb942caa276410bb2eda815bd83
Replace case statement with lookup.
Small speed gain at low speed settings but at speed 2+ where the
number of motion searches etc. falls the impact rises to ~3-4%.
Change-Id: Idff639b7b302ee65e042b7bf836943ac0a06fad8
Change-Id: I5940719a4a161f8c26ac9a6753f1678494cec644
It does encodings with min and max q set at 0, and check to make sure
output PSNR at MAX_PSNR (100).
Change-Id: Ia2418353cccf6e487204ea4ff874a7e71e55cb3e
- The vp9 mbfilter C code will branch on flat and mask. This CL
will perform both branches and combine the data. A later CL will
perform a check to see if all patch will take one branch.
- These functions are about 1.75 times faster than the C code on
Nexus 7.
PS #3
- Changed all functions to dub limit, blimit, and thresh from
vld {dx[]}, freeing up r4-r6.
- Changed code to use vbif to reduce one instruction and free
up a d register.
Change-Id: I028dae0e434dc9891c3677bdb182e201ffb04777
