Rename MI_BLOCK_SIZE.* -> MAX_MIB_SIZE.* (MIB is for MI Block).
Rename MI_MASK.* -> MAX_MIB_MASK.*
There are no functional changes.
This is in preparation for coding the superblock size at the frame
level, which will require some of these constants to become variables.
The new names better reflect future semantics, and hence make the code
clearer.
Change-Id: Iee08d97554cf4cc16a5dc166a3ffd1ab91529992
Fixes an issue with rectangular inter-intra blocks.
Includes various other refactoring and cleanups to enable fast mixing
of inter and intra predictors.
Uses only the best single inter reference so far for the inter-intra
search.
About 30% speed-up with a 0.1% hit in performance.
This is part one of overhauling on the ext-inter experiment. To be
continued in subsequent patches.
Change-Id: Id10ee100c78c6e00009a3a4f930a4435ef403a95
If --enable-ext-partition is used at build time, the superblock size
(sometimes also referred to as coding unit (CU) size) is extended to
128x128 pixels.
Change-Id: Ie09cec6b7e8d765b7555ff5d80974aab60803f3a
Improve the readability in the related rate-distortion optimization
search control function of sub8x8 blocks.
Change-Id: I7f7456bf40a98aa5146abfe0488cda745b84d899
This commit makes the sub8x8 block to use its nearest neighbor's
motion vector as predicted motion vector for NEWMV mode. It improves
the coding performance by 0.12%.
Change-Id: I99e56715b327573ce7e8a26e3515a4984dadfd98
Skip checking obmc when regular inter predictor is not so good (the
rd-cost for Y residual is greater than the total rd of the best mode
so far.)
Performance change compared to full rd search:
+0.006% lowres, -0.056% midres
Encoding time :
1.14X baseline (was 1.42X)
Change-Id: I11350f955a20e1a2331be458537a915e09fbedf3
Skip filtered intra modes search in inter frame when DC mode is
worse than the best mode so far.
With ext-intra enabled, the overall speed is increased by 20~40%;
performance drop is 0.03% on lowres and 0.05% on midres.
Change-Id: I75d2503b067cf5e46e3533b97fb01497e125baa7
This commit separates the predicted motion vector from the nearestmv
motion vector in the coding process for both regular and sub8x8
block sizes.
Change-Id: I703490513b0194e6669ebf719352db015facb3e1
Merge the functions that generate prediction by above/left predictors
for the encoder and the decoder.
Change-Id: I57e53a8f2eb8d3028c4ed0c9abdcbf00503f95a0
Decompose choose_tx_size_from_rd into three functions that determine
the transform coding rd at different stages. Besides the original
function, txfm_yrd() calculates the rd for fixed size and type.
choose_tx_size_fix_type() fixes the type and searches for the size.
It can enable other experiments to do restricted tx searches so as to
reduce the impact on speed.
Similar refactoring is done for select_tx_type_yrd() in VAR_TX.
Performance change in baseline is trivial:
0.014/0.001/-0.020 for lowres/midres/hdres.
Change-Id: I2ecbf6066329be088ec1bfb69013b657b14b8afe
Makes a set of 16 transforms total, adding all 1D
combinations of ADST and FlipADST, and removng all DST
transforms.
lowres, midres both improve by about 0.1% and hdres by
-0.378% in BDRATE but with fewer transforms that are also
simpler.
Further experiments to continue later.
Change-Id: I7348a4c0e12078fdea5ae3a2d36a89a319ffcc6e
Rework the interface to allow codec store the reference motion
vector list information for coding process.
Change-Id: I47e26587f6c0808655e4626f316ec7614a7ad8ed
This commit re-designs the probability model for the syntax elements
of the dynamic motion vector referencing system.
Change-Id: Icfb8203c7e8f64e10e99f5890e25e6f6b15fe5d1
This commit enables the dynamic motion vector predictor for NEWMV
mode. It allows the codec to select the best motion vector predictor
in a rate-distortion optimization framework for motion vector
residual coding. The compression performance is improved:
lowres 0.14%
midres 0.27%
hdres 0.24%
Change-Id: I6a601c74eb6cb0b71a613336d40363359f2edecd
Eearly termination if U plane RD cost is large enough.
No notable compression performance changes.
Change-Id: Ieeefc5859cb55d94391b502b4bd840bc8bcb2578
