GitLab

No change in BDR.

Change-Id: I77551120a2e94dcbf818b039154495f0f9b21755

This will make it easier to add native CDFs for all the
dependent experiments without excessive macros.

Change-Id: Iee4710f0fe1c1b4300f686cdf2c5b879a36de987

Change-Id: If5d4f6d261276d9cfdd59fd7779467d92f56c395

This commit produces a bit-exact bitstream because prior calls to code
 the tx_size using aom_write_tree() would automatically convert the
 aom_tree_index on the fly to a CDF.
The tx_size_cdf[]'s are now computed once per frame.
Based on recent tests, this patch reduces decode time by 4%.

Change-Id: I920dbf036b8a9574ea6e65ae5f9c43eef1c3f864

Symbol count is maintained in the position after the
last CDF value.

Change-Id: I1882e48bfb1404ea7b83ef410298484939601796

Change-Id: Ib1b5dde5d4c6479c968cd7d7a4a1d01abae1fcf6

Change-Id: I070ee1acde80c99576d30f2611b6c653834b3e9b

The new_tokenset experiment replaces the unconstrained tokenset with a
multisymbol alphabet in an inventive way.

Tested configurations:
new_tokenset + ec_adapt, new_tokenset, ec_multisymbol

Change-Id: I846ab2e51c2a1dc3f2f9904ed8c47a8e98f853c5

Preparation for merging EOB_TOKEN. The block_zero value
corresponds to the first EOB_TOKEN: other EOB_TOKEN values will
be merged with non-zero values.

Change-Id: I94036783ee240fa916a79c544ecd716a9c24fa59

These are optimized for EOB_TOKEN being associated
with the current position, not the previous.

CBP tables cover EOB_TOKEN for the the whole block.

This change causes a performance regression until
EOB_TOKEN is merged into the coding scheme.

Change-Id: Ica3a12ed97285cbae204ce3cc1a7e658ebcacc9f

Zero, one, and two or more coded as one symbol (head).
Remaining tokens coded as a tail symbol.

The pareto CDF distribution is adjusted to cover tokens from
two onwards.

Change-Id: I98b33fab6b9f52690f6ad618ac55e725a97be056

- Added comments for some tables and #defines for clarity.
- Renamed some variables to ensure we use "color_index" instead of
"color" for palette color index related variables.

Change-Id: Ica95a26e0f171a41a3259c8e6b3b891b8cd10151

This reduces the complexity in a number of ways:
- We need just 3 neighbors instead of 4.
- Possible contexts reduce from 16 to 5.
- On hardware side, getting the contexts for a whole block will be more
parallelizable.

At the same time, compression performance improves very slightly:
- Screen-content set (videos) (Google): BDRate improved by 0.32
- screenshots set (images) (AWCY): PSNR improved by 0.62:
https://arewecompressedyet.com/?job=palette_withTR2%402017-01-27T21%3A30%3A28.890Z&job=palette_noTR2%402017-01-27T21%3A41%3A34.312Z

Change-Id: Ie84ca32f05d55ad481a51c2d3abc579468597189

If part of a block falls outside right and/or bottom image boundary,
then only store tokens for the part of it within the boundary.

Also, consider only the part of the block within the boundary when
calculating the number of colors in the image, deciding the base
colors for palette, RD calculation etc.

The part of color map corresponding to pixels outside the image
boundary is padded with color indices copied from same row/column.
This behavior is similar to how pixels outside the boundary are padded.

For screen_content set, this is improves compression performance by
0.038 overall. One clip, in particular, has a significant gain of 0.8.

Change-Id: I745ca032f313c5041aacc98c03ae4bfc33d840de

This commit enables the adaptive scan order system support
rectangular trnasform block sizes. It resolves the coding failure
when rect-tx or var-tx are enabled.

BUG=aomedia:143

Change-Id: Ic565284e811e3f7e0ebf2e08fb3748257ce8a049

Change-Id: Id01c785ad48134075c4f6643233413564f0b8fbc

This commit adds 2x2 transform block scan order to make the
adaptive scan order support cb4x4 mode.

BUG=aomedia:135

Change-Id: Ic8c3ae9ed65d577df629524b617b386b5e799d4c

Change-Id: I0cacd4e8cdd07458b36bbdd56e4f005327854b34

Change-Id: Ic0eba16329d7b63dd7d18e9cd28b89be4b5f2710

Change-Id: Ia5046d9158d5421a7f6e0397f4fa1e1925ae2ccb

Change-Id: I1cf27d2f029c1e985cafb468f60e7117d92593f5

Change-Id: I3f7eeff102fc30e2cef59c2c07df94826587d100

Change-Id: I21785bec0563299b4b0c1d17aaaa788e4e8df4d7

Change-Id: I76259d6ec925a0c7024e7c70a517debe2d3bf1ab

Change-Id: I62b662052a4b9b1de07575824410aa9b2ce2c924

Change-Id: I0005c896a243275c052a0163a5da0f9230071743

intra-interp experiment allows intra prediction to use different
interpolation filters. It was part of the ext-intra in the nextgenv2
branch.

Change-Id: I27ab692494dc79bb92e457dbf9a72988577f1c6d

This filter is meant to replace the bilateral filter,
but is currently added in addition to the bilateral filter
for testing.

Change-Id: Ia529701e69833d47c11b3367d5bf804eb8498079

Performance gain (REF_MV on by default)
WARPED_MOTION: 1.061%
WARPED_MOTION+MOTION_VAR: 2.917%
MOTION_VAR: 2.337%

Change-Id: I43f742a02cdd43d13ef333a0a15087062ad020ab

The recursive transform block partitioning system naturally supports
the use of rectangular transform block size. Hence there is no need
to make a separate coding route for the rectangular transform block
size support there.

Change-Id: I709b61f94cd4a6ea3f33c05abe319488c7d24f5a

This is currently just a refactor and creates no change in performance.
It allows new compound types to be added easily in the future to
facilitate experiments with segmentation masks.

Change-Id: If48fed216d482454fabb45a304b4220ada0dbdee

After https://aomedia-review.googlesource.com/#/c/5589/ ,
the Global_Motion_Params and GLOBAL_MOTION_TYPE types
are redundant, and can be removed in favour of
WarpedMotionParams and TransformationType respectively.

Change-Id: I33f3796e5c469e595fd012ccdb65a672dd1bb86c

BDRATE:
lowres: -1.01% (up from -0.7%)
midres: -1.90% (up from -1.5%)
hdres:  -2.11% (up from ~1.7%)

Change-Id: I1fe04ec9ef90ccc4cc990e09cd45eea82c752e0c

The switch to using daala_ec by default broke the compile
when used with ext-tx, as some code which should have been
inside #if !CONFIG_EXT_TX was not inside such a block.

Change-Id: I4cec9755bd4e6134a7d3036c4482f952a815cafc

Ensure that cdfs are synced with pdfs after every
forward update.

Change-Id: I5677f78300156c8622f1728d7a343ff6c3a4ea64

The new ec_multisymbol experiment supersedes the rans experiment and is
used for multisymbol features that can be backed by either daala_ec or
rans.

This experiment is automatically enabled by ec_adapt and will try to
enable daala_ec or ans (in that order).

Change-Id: Ie75b4002b7a9d7f5f7b4d130c1aacb3dbe97e54f

Make the codec support 2x2 tranform block unit for chroma components.

Change-Id: Ic454535bd5620abe88a2e99789160cc4664ee518

Introduce the transform block partition depth macro definition.

Change-Id: I218dc77a77c8e967da4d270d4ec0d7691b712a5f

Move computing the inter_mode_cdf tables per coded inter mode symbol to
 computing them only when the probabilities are updated.

Change-Id: I7a7b059ee75723cb6f278ed82a20cf34c27915d8

Move computing the uv_mode_cdf tables per coded intra mode symbol to
 computing them only when the probabilities are updated.

Change-Id: I627b59d30726c913f5d7ba7753cb0446a12655bb