obmc: We add an obmc prediction mode at superblock level.
When it is enabled, predictors of the above and left blocks
are used to refine the regular block-based motion compensation.
Change-Id: I6310104ea3dfece16d736351e368861471dd1c9b
For dynamic resizing (whether the new codec size is determined internally
or externally set by user), we should for now keep rc.resize_allowed enabled.
This prevent the use of referene_masking for real-time mode
(in set_rt_speed_feature()).
Change-Id: Ibb7c3ff35be88afdf1a3c6db6693521766f177a3
Setting FIXED_TX_TYPE as 1 makes the encoder skip tx_type search,
about twice as fast.
This speed feature is off by defualt; we can turn it on when we
want to quickly test new ideas.
Change-Id: Ieab5807d17fcd54fce3e8ae2f59a18b42eb79408
to vp9_setup_pre_planes(), preventing the function
unscaled_value() from being called. unscaled_value()
returns the same value that was passed in. See
scaled_buffer_offset() in vp9_reconinter.h.
Change-Id: I2a6fbaf07972c2f212834929d29a2cbe72e399c3
This commit aligns the rate-distortion metric for the recursive
transform block partitioning and the super transform. It resolves
the conflicts between these two experiments. The coding performance
gains of the combined experiments (var-tx + super-tx) has been
improved:
derf 0.89% -> 1.9%
hevcmr 1.06% -> 1.8%
stdhd 0.29% -> 1.4%
hevchr 0.80% -> 2.3%
Change-Id: I7e33994ad70c1b2751435620815f867d82172f41
These costs are added in separately just before the computed
ref_costs_* are added in the calling functions, so they were
effectively double counted.
Change-Id: Ic941d0243460cc2e750791cfc508e97d8b90e8fd
The bit to error transformation got doubled as a result of going from
8-bit to 9-bit costs (change d13385c).
Use defines to derive the scale numbers and comment some of the fields.
derf: -0.023 BDRATE
hevcmr: +0.067 BDRATE
stdhd: +0.098 BDRATE
(These are substantially smaller than than the original gains from 8 to
9 bit costing.)
Change-Id: I6a2b3b029b2f1415e4f90a05709b2333ec0eea9b
When the codec frame size is the same as the reference frame size,
release the scaled reference before assigning it a new buf_idx.
Only affects 1 pass non-svc mode, where the scaled references are
release only under certain conditions (to prevent un-needed scaling
of the references every frame).
Modified a unittest that can trigger this bug without this change.
https://code.google.com/p/chromium/issues/detail?id=582598
Change-Id: I9a884e36ebd7608b1641ec2a469e20a4f829cf43
If the application changes frame size (external size changes),
and aq-mode=3 is on, reset the cyclic refresh.
Modify the TestExternalResize unittest (longer run with more resize
actions). Without this change an assert would be triggered on this
longer test.
Change-Id: I0eefd2cd7ffa0c557cca96ae30d607034a2599ce
This patch makes rd optimization use the same context for computing
the rate cost of coding the partitioning as the packer actually uses
when emitting it in write_modes_sb.
Change-Id: Idb1427bb2f9c37ab80c6aa182f7ff754ef0595cb
The value of use_highbitdepth flag is used for compute the size for
high bit depth buffer allocation, which should take value 0 or 1
depending on if the buffer is used for high bit depth or not.
Previously, the values is set to 8 or 0, this commit fixes the issue
and properly set the value for this flag to 1 or 0.
This cuts the size of highbitdepth buffer memory allocation to 2/9 of
the size prior to the fix.
Change-Id: I401518b5a6147e5d8a973e54f7ca6bc1892065e0
This commit enables entropy coding for dynamic reference motion
vector modes. The probability model is contexted on the ranking
categories of the reference motion vector candidates.
Change-Id: I09b58d98a409d63ec1a407331e29f8945b7ef17d
Fixes an issue where the tx_type was not set correctly for
sub8x8 inter and intra blocks. In the current syntax, for
sub8x8 blocks, there is still a single tx_type that is
transmitted. Ideally, this should be searched for the best
rd performance, albeit at the expense of encode speed.
For now, we just set it to DCT_DCT. Previously it was left
incorrectly as what was used for the previous non sub8x8
block.
derflr: BDRATE -0.277%
Change-Id: If76ba903bfbfd4d374cf1ac7d1daee50e92f0edd
Fixes an issue where the tx_type was not set correctly for
sub8x8 inter and intra blocks. In the current syntax, for
sub8x8 blocks, there is still a single tx_type that is
transmitted. Ideally, this should be searched for the best
rd performance, albeit at the expense of encode speed.
For now, we just set it to DCT_DCT. Previously it was left
incorrectly as what was used for the previous non sub8x8
block.
derflr: BDRATE -0.277%
Change-Id: If76ba903bfbfd4d374cf1ac7d1daee50e92f0edd
This commit enables the dynamic reference motion vector coding mode
for the compound inter blocks.
Change-Id: Ibe78fd8de6989db392cd67a9d81a69d680345ba1
Yue Chen
hui su
Angie Chiang
Marco
Yaowu Xu
Scott LaVarnway
Jingning Han
Geza Lore
James Zern
Alex Converse
Debargha Mukherjee
Yaowu Xu