Move the reference frame type definitions to common/enums.h file.
Replace hard coded numbers.
Combine repeated definitions.
Change-Id: I288e079a03e448014cc181bcdb3f88ee8ec8d139
This commit fixes the use of uninitialized context values in the
combination of supertx and var-tx.
Change-Id: I2d36badf5c9806ea402ce3e19515cc299e6b79e8
This commit refactors the reference frame structure used in the
dynamic motion vector referencing system, and makes it support
the bi-directional reference frames. This resolves unit test
failure (enc/dec mismatch) when both are turned on.
The compression performance (ref-mv + ext-refs) is improved by
0.2% for lowres.
Change-Id: I233624d8fccc1f69e82295f94de984ff056365dc
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
- Apply signal direction/4-pixel vertical/8-pixel vertical
parallelism.
- Add unit test to verify the bit exact result.
- Overall encoding time improves ~24% on Xeon E5-2680 CPU.
Change-Id: I104dcbfd43451476fee1f94cd16ca5f965878e59
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
