This commit enables the dynamic reference motion vector coding mode
for the compound inter blocks.
Change-Id: Ibe78fd8de6989db392cd67a9d81a69d680345ba1
There were a number of compiler warnings:
1. int16_t to uint8_t in recon_intra.c;
2. double to float conversions in psnrhvs.c
3. intptr_t to int in quantize.c
4. size_t to int32_t in decoder.c
Change-Id: Id95423b17779dcfa6cf39d9a90fe8cb8b910f5df
Set USE_12_SHARP_FILTER to 1 to turn on the experiment
The psnr percentages increase
derf stdhd
lowbd +0.332 +0.318
highbd +0.476 +0.507
Change-Id: I783c0fc764ee8541645e100453c9b2073924e209
Temporaly disable warning for unused function for vp10, needs clean
out the warnings before re-enable the flag for vp10.
Change-Id: I5636f8cd607423f6ea6963db9c2cbd688e30b495
The definition is for the number of frames to check to determine the
recent decay rate, further to determine the next key frame in the
first pass of the encoder.
Change-Id: Ic696d6eb518a86fa296842273cf8767ef0b0e27a
Seperate the prediction angle search and fitler search.
It can reduce the computation overhead of filter search by as much
as 85%, while keeping more than 50% of the coding gain.
Change-Id: Id152f71e20ebcaca8b429bdd4ca1fbeb646fc6bf
BD-rate performance improvement (on top of ext-intra):
derflr 0.22%
hevclr 0.36%
hevcmr 0.48%
hevchr 0.37%
stdhd 0.19%
Average speed impact on some derf clips is about 40% slower (on
top of ext-intra). Speed improvment is a to-do.
Change-Id: I8fe3fe8c5e4f60d0462778adbcc15c84dfbe7a25
This commit generalizes dynamic reference motion vector coding mode
to support multiple candidate modes in the rate-distortion
optimization scheme and to support the selection in the bit-stream
syntax. The maximum number of modes allowed is currently limited to
4. The syntax elements for the dynamic reference motion vector
modes are using binary codes. The scheme supports single reference
frame.
It improves the compression performance
derf 0.135%
hevcmr 0.098%
Change-Id: Id053d6ce76e8365e52727bd0d12d28ce3de2e0e8
It makes the encoder accounts for the block zero-forcing operation
when optimizing the mode decisions.
Change-Id: I2c8e243756080b446b8a53a9679f75c4c47148cf
Fixes assertion for football_422_4sif.y4m when supertx, var_tx and
ext_tx are all enabled. Problem was after subsampling, the u and v
blocks being encoded were no longer square.
Change-Id: Ie626f30a2e64538d33343a26d5124a79a6f2b985
This commit allows an adaptive motion vector referencing mode
approach. It checks the available reference motion vector candidate
list and decides the amount of motion vector referencing modes. The
current implementation assumes simple binary coding for the syntax.
The compression performance is improved by
derf 0.11%
hevcmr 0.38%
stdhd 0.09%
hevchr 0.23%
The coding gains due to the new reference motion vector system are
derf 1.0%
hevcmr 1.7%
stdhd 1.4%
hevchr 1.3%
Change-Id: Idf932fc373546fe59c8741f1b933ff656e8dbc3f
Update blk_skip in update_state_supertx() and rd_supertx_sb().
Performance (SUPERTX+VAR_TX): TBD
(Eventually will merge update_state() and update_state_supertx())
Change-Id: I34ef982b80151ba2dfba745859cb2ca7b90dc888
the lookahead buffer allocation is deferred to receipt of the first
frame to allow profile changes. if the encoder was flushed before
supplying any frames the encoder would crash trying to dereference the
NULL buffer. vp8 is unaffected.
fixes mozilla bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1237848
Change-Id: Icee4b64de760476eee0d33b568f0a1010335ff13
Fixes integer pel MV usage for the sub8x8 case, which fixes a
rare mismatch issue.
Also adds some other minor missing code related to filter threshes.
Change-Id: I6b07e6cf9b287ba4b5bd6599af4a7412e50b3bdc
Reintroduce part of
Iaf2b717e6b8626b2b6a03226127221b776b49884
Which was later reverted in
I4c5b40ec63a6f19521191d3c730af87db3c4bc00
Change-Id: If3e5610ba3985ae7b4d952d8e616982465ac667a
