Coding and costing of mv reference signal.
Issues in updating MV ref with COMPANDED_MVREF_THRESH
to be resolved. Ideally the MV precision should be defined based
on absolute MV magnitude not as now the MV ref magnitude.
Update to mv counts moved into bitstream.c because otherwise
if the motion reference is changed at the last minute the encoder
and decoder get out of step in terms of the counts used to update
entropy probs.
Code working on a few test clips but no results yet re benefit vs
signaling cost and no tuning of red loop to test lower cost alternatives
based on the available reference values.
Patch 3. Added check to make sure we don't pick a reference
that would give rise to an uncodeable / out of range residual.
Patch 6-7: Attempt to rebase. OK to submit but best to leave flag off for now.
Patch 9. Remove print no longer needed.
Change-Id: I1938c2ffe41afe6d3cf6ccc0cb2c5d404809a712
Refactor per-transform copy & paste into a common function
update_coef_probs_common() and read_coef_probs_common(). The dry-run and
bit-writing loops in the encoder are still obvious candidates to be made
common, but they start to diverge a bit in the next commit, so are left
as-is for now.
Change-Id: I896bd3f4a073a6296eab7e92463fef79d8c6c08c
There is a macro DEFAULT_INTERP_FILTER defined in encoder/onyx_if.c that
is set as EIGHTTAP for now - so SWITCHABLE is not really used. Ideally,
this should be SWITCHABLE but that would make the encoder quite a bit slower.
We will change the default filter to SWITCHABLE once we find a faster way to
search for switchable filters.
Change-Id: Iee91832cdc07e6e14108d9b543130fdd12fc9874
* changes:
Fix another typo in 4x4-transform-for-i8x8-intra-pred coeff contexts.
8x8 transform support in splitmv.
Use SPLITMV_PARTITIONING instead of a plain integer type.
For splitmv, where partitioning is 8x16, 16x8 or 8x8, this patch
uses the 8x8 transform (instead of the 4x4) if txfm_mode is
ALLOW_8X8 or ALLOW_16X16. For TX_MODE_SELECT, splitmv can indicate
which of the 2 transform sizes (4x4 or 8x8) it wants to use.
Gains (with hybridtx4x4/8x8/16x16 and tx_select experiments
enabled) on derf: +0.9%, HD: +0.4%, STD/HD: +0.8% (SSIM or overall
PSNR, both metrics show similar improvements).
Change-Id: Ide954b000b415548ed92a7ac78e24f36e60fcf06
This can be used to distinguish between 16x8, 8x16, 8x8 and 4x4
partitioning modes when choosing splitmv as a MB mode.
Change-Id: Idc8b59772e1a80ccc4ad44d63c5c2ec3fc061a3c
It currently counts the probability that the branch is true, but it
should count the probability that the branch is false.
Change-Id: I963825da2e7a7ed3a613eb23ffd085e427dc36e5
Allows B_VL_PRED & B_LD_PRED modes to be used for all blocks
within a MB in B_PRED mode. These modes were temporarily
disabled with super-block coding.
Change-Id: I973b9bdb82c3da5f12d7cc963162a28805f25303
First sse2 version of vp8_mbloop_filter_vertical_edge(). For now,
intrinsics are being used until the bitstream is finalized. This function
will be revisited later for further performance improvements.
For the test clip used, a 34+% decoder performance improvement
was seen. This will vary depending on material.
Change-Id: I455b438bc8d8af76cf7533ac42eda5f689b21f7c
There were several different methods for calculating bitstream
probabilities in use. Consolodate these into a pair of functions,
get_prob() and get_binary_prob().
Change-Id: I5534f517f74027fee16d89c9baefaafea8156b2f
Pass the bool coder to be used explicitly. This avoids cases where two
different bool coders can be addressed from the same function. Also be
more consistent with bool coder variable naming, start to standardize
on 'bc'.
Change-Id: I1c95e2fdbe24ebe8c0f84924daa1728e3b054a31
Separates the logic on transform type selection previously spread out
over a number of files into a separate function. Currently the tx_type
field in b_mode_info is not used, but still left in there to eventually
use for signaling the transform type in the bitstream.
Also, now for tx_type = DCT_DCT, the regular integer DCT is used, as
opposed to the floating point DCT used in conjuction with hybrid
transform.
Results change somewhat due to the transform change, but are within
reasonable limits. The hd/std-hd sets are slightly up, while derf/yt
are slightly down.
Change-Id: I5776840c2239ca2da31ca6cfd7fd1148dc5f9e0f
First sse2 version of vp8_mbloop_filter_horizontal_edge(). For now,
intrinsics are being used until the bitstream is finalized. This function
will be revisited later for further performance improvements.
For the test clip used, a 31+% decoder performance improvement
was seen. This will vary depending on material.
Change-Id: I03ed3a7182478bdd1f094644ff3e0442625600e7
