This commit fixes the use of uninitialized context values in the
combination of supertx and var-tx.
Change-Id: I2d36badf5c9806ea402ce3e19515cc299e6b79e8
This reinstates commit efda2831e5f758b4f350679b5c55c0b9282449b0
without the tests and with fixes for 32 bit x86 builds.
Change-Id: I34be4fe1e8a67686d26ba256fd7efe0eb6a569e8
The tile boundaries should now be respected even between tile rows.
regardless of whether ext-tile is used or not.
Change-Id: I5a39fd274451114a4264215f97f12be2c908016d
When the next two states are identical, skip repeated cost table
fetch and multiplication operations. This makes the trellis unit
about 5% faster.
Change-Id: I0dbf7ad0a5732044e4e45dd59e9431a251c678f2
Properly restore the rate cost in the inner search loop of obmc
prediction. This avoids unexpected encoding behavior. It fixes
the unit test failure in obmc experiment:
AltRefForcedKeyTestLarge.Frame1IsKey/2
Change-Id: I667b219dfcf2f2c63d9d984900ed3cfd10c354bd
This patch removed the experiment of BIDIR_PRED and merged the feature
into the experiment of EXT_REFS:
(1) Each frame now has up to 6 reference frames, namely
LAST_FRAME, LAST2_FRAME, LAST3_FRAME, GOLDEN_FRAME, (forward) and
BWDREF_FRAME, ALTREF_FRAME (backward);
LAST4_FRAME has been removed;
(2) First pass still keeps the 8 updates:
KF_UPDATE, LF_UPDATE, GF_UPDATE, ARF_UPDATE, OVERLAY_UPDATE, and
BRF_UPDATE, LAST_BIPRED_UPDATE, BI_PRED_UPDATE;
(3) show_existing_frame==1 is supported in the experiment of EXT_REFS;
(4) New encoding modes are added for both single-ref and compound cases,
through the use of the 2 extra forward references (LAST2 & LAST3)
and the 1 extra backward reference (BWDREF).
RD performance wise, using Overall PSNR: Avg/BDRate
Bipred only Prev EXT_REFS Current EXT_REFS with bipred
lowres: -3.474/-3.324 -1.748/-1.586 -4.613/-4.387
derflr: -2.097/-1.353 -1.439/-1.215 -3.120/-2.252
midres: -2.129/-1.901 -1.345/-1.185 -2.898/-2.636
If in vp10/encoder/firstpass.h, change BFG_INTERVAL from 2 to 3, i.e. to
use 2 bi-predictive frames than 1, a further improvement may be
obtained:
Current EXT_REFS with bipred
1 bi-predictive frame 2 bi-predictive frames
lowres: -4.613/-4.387 -4.675/-4.465
derflr: -3.120/-2.252 -3.333/-2.516
midres: -2.898/-2.636 -3.406/-3.095
Change-Id: Ib06fe9ea0a5cfd7418a1d79b978ee9d80bf191cb
Inter blocks that have SEG_LVL_SKIP active must be at least 8x8 in
size for bitstream conformance (see read_inter_block_mode_info in
decodemv.c).
This patch makes the variance based partitioning scheme stop at 8x8
blocks in inter frames. This satisfies the SEG_LVL_SKIP constraint
and is more in line with the original implementation of this function
(before it got extended for 128x128 superblocks).
BUG=webm:1234
Change-Id: I1fdd894569a9c0817713a77daabe4c8b8e1d00c0
This commit takes the precise rate estimate for zero_token rate
cost update. It improves the compression performance:
lowres 0.15%
midres 0.23%
Change-Id: I36761079f75ce43c814f8c663667e359d4ac2cd4
The trellis optimization is going backward. Hence there is no need
to restore the token_cache values that is behind the current node
in the scan order.
Change-Id: I4da8a2e3f78bf9630e6667c85d8c387c5d94de9a
Move the supertx skip bit and transform type past the recursive
prediction blocks. This is in preparation for using the segment level
skip feature for supertx blocks.
Change-Id: I8319414b0734144a9264e8a4a60940b6716b12a8
This commit refactors the trellis coefficient optimization process.
It saves multiplications used to generate the final dequantized
coefficients. It also removes two memset operations on quantized
and dequantized coefficient sets.
The trellis coefficient optimization is on average running over
10% faster.
Change-Id: If3aa26d2a706c3012bf2b7ac059bf1825250e81f
This fixes some crashes in
VP10/EndToEndTestLarge.EndtoEndPSNRTest/ with high bit-depth and
ext-inter.
Change-Id: I10f0f08e1be4bd5c388616074d4aa3f91a2fda7a
