Commit Graph

328 Commits

Author SHA1 Message Date
Dmitry Kovalev
8d13b0d1df Removing LOW_PRECISION_MV_UPDATE define.
Change-Id: I78d16ee758e1fae0200b746f00031f6d9c6d6ce7
2013-07-23 15:41:45 -07:00
Dmitry Kovalev
2855d8aea1 Merge "Adding update_tx_counts function." 2013-07-23 13:57:59 -07:00
Paul Wilkins
32042af14b Renaming of segment constants.
Renamed:
  MAX_MB_SEGMENTS to MAX_SEGMENTS
  MB_SEG_TREE_PROBS to SEG_TREE_PROBS

The minimum unit for segmentation in the segment map
is now 8x8 so it is misleading to use MB_ as macro-block
traditionally refers to a 16x16 region.

Change-Id: I0b55a6f0426bb46dd13435fcfa5bae0a30a7fa22
2013-07-23 12:09:04 +01:00
Dmitry Kovalev
b2fc6fa969 Adding update_tx_counts function.
Moving common encoder/decoder code to update_tx_counts. Also renaming
vp9_get_pred_probs_tx_size to get_tx_probs2 and adding get_tx_probs to
call vp9_get_pred_context_tx_size inside read_selected_tx_size only once
(twice before).

Change-Id: Ia50247f3893de88ef8e9041b0d44be44a40aaa4d
2013-07-22 14:57:43 -07:00
Dmitry Kovalev
39342db138 Merge "Consistent names for inter mode probabilities and encodings." 2013-07-20 22:40:51 -07:00
Dmitry Kovalev
e71a4a77bb Merge "Renaming TXFM_MODE to TX_MODE (like TX_SIZE, TX_TYPE)." 2013-07-19 12:14:32 -07:00
Dmitry Kovalev
c0eb57406c Renaming TXFM_MODE to TX_MODE (like TX_SIZE, TX_TYPE).
Moving TX_MODE enum to vp9_enums.h. Renaming txfm_mode variables to
tx_mode.

Change-Id: I459d1af6dd928ce7fccdf8ce30b6f1ca057bef92
2013-07-19 11:37:13 -07:00
Dmitry Kovalev
afe43d4089 Removing redundant VP9_COMMON* from function signatures.
Functions: vp9_get_pred_context_switchable_interp,
           vp9_get_pred_context_intra_inter,
           vp9_get_pred_context_single_ref_p1,
           vp9_get_pred_context_single_ref_p2.

Change-Id: I3d6fb8aee23c9062270768e1e6da416dd9bb8f96
2013-07-19 11:20:49 -07:00
Dmitry Kovalev
bc7acb134b Consistent names for inter mode probabilities and encodings.
Renaming vp9_sb_mv_ref_tree to vp9_inter_mode_tree, and
vp9_sb_mv_ref_encoding_array to vp9_inter_mode_encodings.

Change-Id: I0e91fbf81350d3ec5a2599064c74089b5d06133a
2013-07-19 10:40:04 -07:00
Dmitry Kovalev
f9f453ec8d Removing kf_{y, uv}_mode_prob arrays from VP9Common.
These arrays have constant values (no any updates). Removing two
corresponding memcpy calls. Making a little cleanup in vp9_entropymode.h
as well: removing redundant 'extern' keyword and moving all function
declarations at the end.

Change-Id: Ia16b38b46aec2e2500f5df29c40a297ae241dede
2013-07-17 16:50:52 -07:00
Dmitry Kovalev
a7a1e96136 Merge changes Ieffea49e,Idf610746
* changes:
  Removing two unused arguments from vp9_inc_mv signature.
  Changing signature of vp9_get_pred_probs_tx_size.
2013-07-17 14:44:20 -07:00
Dmitry Kovalev
102632aab1 Merge "Adding read_comp_pred function." 2013-07-17 14:26:34 -07:00
Dmitry Kovalev
851a911158 Adding read_comp_pred function.
Removing old debug code from vp9_decodemv.c.

Change-Id: I51a6d5fe6a2f6583a1555e692bb1ee5a5b315d6c
2013-07-16 20:20:25 -07:00
Dmitry Kovalev
41ae3d02d4 Removing two unused arguments from vp9_inc_mv signature.
Change-Id: Ieffea49eb7a5e5092f21f8694c546aff69b07c6d
2013-07-16 17:01:08 -07:00
Dmitry Kovalev
5b65a71cdc Changing signature of vp9_get_pred_probs_tx_size.
Removing VP9_COMMON* argument and adding struct tx_probs* instead of
MACROBLOCKD*.

Change-Id: Idf61074631a90ec51eac22c8dcd977f44ac0757c
2013-07-16 16:34:54 -07:00
Dmitry Kovalev
3997da0d35 Removing MV_GROUP_UPDATE define and corresponding code.
Change-Id: I4884cdc2557d25d50c7c4f7e19b1ad8bdb93cd63
2013-07-16 15:03:00 -07:00
Dmitry Kovalev
863138a2ad Rewriting vp9_set_pred_flag_{seg_id, mbskip}.
Making implementation of vp9_set_pred_flag_{seg_id, mbskip} consistent
with vp9_get_segment_id without using confusing sub(a, b) macro. Passing
mi_row and mi_col to functions explicitly instead of replying on
mb_to_right_edge and mb_to_bottom_edge.

Change-Id: I54c1087dd2ba9036f8ba7eb165b073e807d00435
2013-07-16 10:44:48 -07:00
Dmitry Kovalev
429070987a Using vp9_copy and vp9_zero instead of custom code.
Change-Id: Id9b6ceeddca3f9b34bfada5c499b1e7a2f42c30b
2013-07-12 18:07:43 -07:00
Dmitry Kovalev
31403080ff Merge "Removing redundant call to set_mi_row_col." 2013-07-12 17:08:23 -07:00
Dmitry Kovalev
3c94fffdb0 Removing redundant call to set_mi_row_col.
This function is actually called from set_offsets which is called right
before vp9_read_mode_info.

Change-Id: Ibb9d5ad606194bc80eab264fad85b31c9dfd8f77
2013-07-12 16:25:23 -07:00
Dmitry Kovalev
aa518af8c7 Merge "Adding struct tx_probs and struct tx_counts to cleanup the code." 2013-07-12 16:02:09 -07:00
Dmitry Kovalev
cc662dd768 Adding struct tx_probs and struct tx_counts to cleanup the code.
Also removing unused declarations from vp9_entropymode.h file.

Change-Id: Ib9c5826db3584a32f6bb3297a76c522b99d83402
2013-07-12 15:22:38 -07:00
Dmitry Kovalev
db0d603b1c Making functions read_{inter, intra}_segment_id more similar.
Change-Id: I51f9ac910834f2d7aba2be4f7ffbce597e61a144
2013-07-12 14:50:33 -07:00
Dmitry Kovalev
dd150e8ea9 Removing redundant code mostly from vp9_pred_common.{h, c}.
Removing redundant function arguments and curly braces.

Change-Id: I46e02561f33fe02e84a3b19756f03b9504bd6a1b
2013-07-11 18:39:10 -07:00
Dmitry Kovalev
c4ad3273c7 Moving segmentation related vars into separate struct.
Adding segmentation struct to vp9_seg_common.h. Struct members are from
macroblockd and VP9Common structs. Moving segmentation related constants
and enums to vp9_seg_common.h.

Change-Id: I23fabc33f11a359249f5f80d161daf569d02ec03
2013-07-11 11:57:57 -07:00
Jim Bankoski
fb027a7658 removing case statements around prediction entropy coding
Removes SEG_ID
Removes MBSKIP
Removes SWITCHABLE_INTERP
Removes INTRA_INTER
Removes COMP_INTER_INTER
Removes COMP_REF_P
Removes SINGLE_REF_P1
Removes SINGLE_REF_P2
Removes TX_SIZE

Change-Id: Ie4520ae1f65c8cac312432c0616cc80dea5bf34b
2013-07-09 20:10:16 -07:00
Scott LaVarnway
69d1d1d865 Removed unnecessary xd->mode_info_context assignment
mi is xd->mode_info_context

Change-Id: Ib101be922b695205ec57b5ce1828ba19bde5b41c
2013-07-09 13:41:34 -04:00
Jim Bankoski
7f960223ea cleanup read_mode_info if (1)
Change-Id: I851af23c787a2d3637d84244b9f75063cbf782f1
2013-07-09 09:04:45 -07:00
Jim Bankoski
c36d502e92 decoder speedup - get-segment-id only if segmentation enabled
Change-Id: I9355f8446660aeb7dfdbc5ee56635c791ac35e95
2013-07-09 08:52:30 -07:00
Dmitry Kovalev
be77f6bbbf Removing redundant struct from union b_mode_info.
Change-Id: I08fc6e474ff2c12cfa065bae4989c724276e2c83
2013-07-02 16:51:57 -07:00
Dmitry Kovalev
7ed754995d Additional vp9_decodemv.c cleanup.
Change-Id: I5b413bc0884af0bda38c05332d86490103905b3b
2013-07-01 16:14:13 -07:00
Dmitry Kovalev
15fefced7d Cleanup inside vp9_decodemv.c.
Adding read_skip_coeff function. Renaming decode_mv to read_mv for
consistency with another function names. Removing redundant function
arguments. Renaming kfread_modes to read_intra_mode_info, read_mb_modes_mv
to read_inter_mode_info, vp9_decode_mb_mode_mv to vp9_read_mode_info,
vp9_decode_mode_mvs_init to vp9_prepare_read_mode_info. Inlining function
mb_mode_mv_init inside vp9_prepare_read_mode_info.

Change-Id: Ifee05d333da4cd331d4aff40ce41ccd9b70e494a
2013-06-28 15:32:31 -07:00
Dmitry Kovalev
59070f6e3c Merge "Removing CONFIG_DEBUG checks on assertions." 2013-06-28 14:03:28 -07:00
Dmitry Kovalev
8e6ce6bb9e Removing CONFIG_DEBUG checks on assertions.
Adding CHECK_MEM_ERROR macro to vp9_common.h and removing two duplicated
ones from vp9_onyx_int.h and vp9_onyxd_int.h.

Change-Id: I916afec61b3019f18193135dac7c35ed0f89b8b6
2013-06-28 10:36:20 -07:00
Dmitry Kovalev
3231da0a9e Decoder's code cleanup.
Using vp9_set_pred_flag function instead of custom code, adding
decode_tokens function which is now called from decode_atom,
decode_sb_intra, and decode_sb.

Change-Id: Ie163a7106c0241099da9c5fe03069bd71f9d9ff8
2013-06-27 16:15:43 -07:00
Dmitry Kovalev
a3664258c5 Merge "General cleanup in segmentation-related code." 2013-06-27 14:57:07 -07:00
Dmitry Kovalev
be83ef3104 Merge "Moving subexp encoding functions in separate vp9_dsubexp.c file." 2013-06-27 14:55:18 -07:00
Dmitry Kovalev
be07485e9a General cleanup in segmentation-related code.
Using consistent function and variable names.

Change-Id: I2deb3fded8797453a2081836c9ce2e79ade06eb7
2013-06-26 10:27:28 -07:00
Dmitry Kovalev
6fb10f2de4 Renaming "nmv" to "mv".
Change-Id: I8299f55c3b930221e52c2237f2ddea65b94fd33b
2013-06-25 15:19:18 -07:00
Dmitry Kovalev
9467571777 Moving subexp encoding functions in separate vp9_dsubexp.c file.
Change-Id: Idbb2ea80f764fa830fe2ddcfc54ef7fe232f05a8
2013-06-25 11:53:17 -07:00
Dmitry Kovalev
40141681c0 Removing find_seg_id and using vp9_get_pred_mi_segid instead.
Change-Id: Ia40229903c08f14020e90e94cfdf494aba1be827
2013-06-21 13:05:10 -07:00
Dmitry Kovalev
8283d893eb Merge "Renaming 'nmv' to 'mv' for several functions." 2013-06-20 10:17:12 -07:00
Dmitry Kovalev
77186ee61a Merge "Function decomposition inside vp9_decodemv.c file." 2013-06-20 10:17:05 -07:00
Dmitry Kovalev
15eaba103d Function decomposition inside vp9_decodemv.c file.
Change-Id: Iab96e6a50aec543c63e15cd134f9d5f01ca7ceff
2013-06-19 13:09:34 -07:00
Yaowu Xu
12180c8329 Remove unnecessary copying of probs.
Change-Id: Ic924f07c6ab0c929c6cdf11880d3c625806e272c
2013-06-18 23:02:27 -07:00
Dmitry Kovalev
87e1fa7627 Renaming 'nmv' to 'mv' for several functions.
Change-Id: I183a38997a9d01e4a1b869e92509f6915216fa09
2013-06-18 18:28:10 -07:00
John Koleszar
8e47093c9e Remove unused need_to_clamp_mvs
This flag no longer needed.

Change-Id: If13482015ddb92d225792ea5c0ee455d2285d1f6
2013-06-12 16:50:14 -07:00
Deb Mukherjee
a43ff15399 New probs for filters/tx_size and a few others
* New probs for subpel filters/tx_count
* Makes a change to not reset to defaults for the tx_size
probs if an intermediate frame reverts to using a fixed tx_size.
* A few updates to the parameters for backward adaptation for mode/mv
* some cosmetic cleanups

derf300: +0.06%

Change-Id: I22994d659bc31ca7a4fc8820fde24001e64a2920
2013-06-10 16:38:47 -07:00
Adrian Grange
eac344ef10 Implement intra-coded frames
Implements ability to signal and decode frames that are
encoded using only intra coding modes. Only the decode
side has been implemented here.

Change-Id: I53ac6a8d90422cd08ba389e5236e15b45f9e93de
2013-06-10 11:43:16 -07:00
Deb Mukherjee
21401942b0 Coding tx-size selection by use of spatial context
Adds coding of transform size within a frame by use of context
of transform sizes selected in left and above blocks.

Also incorporates code for generating stats.

TODO: generate and incorporate new default stats

Change-Id: I6a7af099f6ad61d448521d9a51167aedaf638ed6
2013-06-07 16:07:58 -07:00
Deb Mukherjee
869a39ba60 Cleans up mbskip encoding
Refactors mbskip coding to be compatible with coding of the rest of
the symbols. Adds forward/backward adaptation and removes a lot of
the legacy code.

Results:
fast50: +1.6%
derfraw300: +0.317%

Change-Id: I395a2976d15af044d3b8ded5acfa45f6f065f980
2013-06-07 16:00:26 -07:00
Ronald S. Bultje
6462afe088 Fix ref_frame segment feature when it is intra.
Change-Id: Ifbf790c14cee0c08a27f6728e3c637404e1f8477
2013-06-07 13:57:55 -07:00
Paul Wilkins
340c7a48e6 Change to segment ref frame feature.
Simplify feature to only support a single reference frame
instead of a mask.

Change-Id: I5dd3a98c7a224aafb35708850ab82e2f220e68fb
2013-06-07 21:42:22 +01:00
Deb Mukherjee
3ee1a21a42 Coding updates for tx-size selection
Changes to the coding of transform sizes, along with forward
and backward probability updates.

Results:
derf300: +0.241%

Context based coding of transform sizes will be in a separate
patch.

Change-Id: I97241d60a926f014fee2de21fa4446ca56495756
2013-06-07 08:54:00 -07:00
Ronald S. Bultje
6ef805eb9d Change ref frame coding.
Code intra/inter, then comp/single, then the ref frame selection.
Use contextualization for all steps. Don't code two past frames
in comp pred mode.

Change-Id: I4639a78cd5cccb283023265dbcc07898c3e7cf95
2013-06-06 17:28:09 -07:00
Ronald S. Bultje
ad34368786 New intra mode and partitioning probabilities.
Split partition probabilities between keyframes and non-keyframes,
since they are fairly different. Also have per-blocksize interframe
y intramode probabilities, since these vary heavily between different
blocksizes.

Lastly, replace default probabilities for partitioning and intra modes
with new ones generated from current codec. Replace counts with actual
probabilities also.

Change-Id: I77ca996e25e4a28e03bdbc542f27a3e64ca1234f
2013-06-06 10:45:30 -07:00
Deb Mukherjee
9504f5fac7 Merge "Fix in forward updates for INTRA modes/partitions" into experimental 2013-06-06 00:07:06 -07:00
Deb Mukherjee
2693704621 Fix in forward updates for INTRA modes/partitions
Results:
derfraw300: +0.2

Change-Id: Ie40dc3b31e877ee705f936066d7fa5702bd01ecd
2013-06-05 15:43:44 -07:00
Deb Mukherjee
30226a658f Cosmetic renaming VP9_MVREFS to VP9_INTER_MODES
NO bitstream change

Change-Id: I79f6146dac5fdd157051b6f8dc611c0b7b5e5f7f
2013-06-05 11:24:01 -07:00
Deb Mukherjee
83885235a7 Clean-ups on switchable interpolation and mv_ref
Adds backward adaptation and differential forward updates of switchable
interpolation filter probabilities. Also adds some cosmetic cleanups
and minor fixes on mv_ref probabilities.

derfraw300: +0.353% (with most coming from switchable interp changes)

Change-Id: Ie2718be73528c945fd0d80cfd63ca2d9cb3032de
2013-06-05 10:11:52 -07:00
Scott LaVarnway
1e025dbfd1 Merge "Moved use_prev_in_find_mv_refs check to frame level" into experimental 2013-05-31 09:35:51 -07:00
Ronald S. Bultje
310bc1030a Merge "Merge VP9_YMODES, VP9_UV_MODES, INTRA_MODE_COUNT and cousins." into experimental 2013-05-30 20:58:19 -07:00
Ronald S. Bultje
16482bddf7 Merge "Remove splitmv." into experimental 2013-05-30 19:07:12 -07:00
Ronald S. Bultje
d2205f92c3 Merge changes I98c18fe5,I80c37cff into experimental
* changes:
  Remove i4x4_pred.
  Remove unused table.
2013-05-30 19:06:44 -07:00
Ronald S. Bultje
a433abbcad Merge VP9_YMODES, VP9_UV_MODES, INTRA_MODE_COUNT and cousins.
These are now merged in a new define called VP9_INTRA_MODES.

Change-Id: I0890f895756a7395d84c92f98f43e43f4cf9050d
2013-05-30 17:21:06 -07:00
Ronald S. Bultje
e6485581fe Remove splitmv.
We leave it in rdopt.c as a local define for now - this can be removed
later. In all other places, we remove it, thereby slightly decreasing
the size of some arrays in the bitstream.

Change-Id: Ic2a9beb97a4eda0b086f62c039d994b192f99ca5
2013-05-30 17:21:01 -07:00
Ronald S. Bultje
1efa79d32f Remove i4x4_pred.
It remains as a local define in rdopt.c so we can distinguish between
split and non-split modes in the RD loop, but disappears outside that
scope in the codec.

Change-Id: I98c18fe5ab7e4fbd1d6620ec5695e2ea20513ce9
2013-05-30 16:44:58 -07:00
Yunqing Wang
1badebc821 Merge "Remove set_scale_factors call" into experimental 2013-05-30 15:25:01 -07:00
Ronald S. Bultje
98c192ae83 Merge all intra mode coding trees into a single one.
Also merge all counters. This removes a few unused probability updates
from the bitstream.

Change-Id: I20f58853e9dac84d8c0d9703ae012c55917516eb
2013-05-30 09:58:53 -07:00
Yunqing Wang
c725ad3756 Remove set_scale_factors call
We could remove calling set_scale_factors() since it is also
done in set_refs() right after vp9_decode_mb_mode_mv() call in
decode_modes_b().

Change-Id: I9e62c90ffb770240987cd42815786567261b5d97
2013-05-29 17:07:53 -07:00
Scott LaVarnway
353642bc53 Moved use_prev_in_find_mv_refs check to frame level
This patch checks at the frame level to see if the previous
mode info context can be used.  This patch eliminates the
flag check that was done for every mode and removes another
check that was done prior to every vp9_find_mv_refs().

Change-Id: I9da5e18b7e7e28f8b1f90d527cad087073df2d73
2013-05-29 16:42:23 -04:00
Ronald S. Bultje
4487f5a690 Remove some unused code related to macroblock/splitmv coding.
Change-Id: Ic40d56fb162f4e201547dfae33e62ccd9e865889
2013-05-29 06:29:56 -07:00
Ronald S. Bultje
a4dd99b34d Merge "Moving txfm_size bits before prediction mode bits." into experimental 2013-05-28 09:40:42 -07:00
Scott LaVarnway
9a27b627b8 Merge "Removed setup_pre_planes() call in read_mb_modes_mv()" into experimental 2013-05-28 09:07:51 -07:00
Yaowu Xu
2b96ffe025 a few clean-ups
1. remove prediction mode conversion
2. unified bmode, same for key and non-key frame
3. set I4X4_PRED count for pdf to 0, as I4X4_PRED is no longer
coded ever. It is determined by ref_frame and block partition

Change-Id: If5b282957c24339b241acdb9f2afef85658fe47d
2013-05-27 13:53:56 -07:00
Sami Pietila
80812829c2 Moving txfm_size bits before prediction mode bits.
Hardware implementation needs to load coeff probs based on the
transform size. For selectable transform size, moving these bits
earlier in the bitstream adds some delay giving time to preload
the probs and speeds up the decoding process.

Change-Id: I3bfc1f662ae6f219c9286fe9ae6310c7d8a63ea7
2013-05-27 10:32:05 +03:00
Ronald S. Bultje
5cac66078e Remove splitmv.
Also do per-partition motion vector referencing in <sb8x8 partitions,
and adjust mvref finding for sub8x8 partitions.

Change-Id: Id3ed1ed4d2a8910d11d327db6cc63b8eb79f941f
2013-05-26 14:40:49 -07:00
Jingning Han
d093027791 Fix transform size coding mismatch
This commit fixes a transform size enc/dec mismatch issue in the
key frame coding.

Change-Id: I0c4f40464a367b33dd91ace84506650b1aec2873
2013-05-24 11:30:58 -07:00
Scott LaVarnway
64b30f41cd Removed setup_pre_planes() call in read_mb_modes_mv()
This code does not seem to be necessary anymore.

For the 1080p clip used, the decoder performance improved by
~2%.

Change-Id: I66bb0496d4998b0d6c6637c746b642b77bdbef88
2013-05-24 13:39:48 -04:00
Jingning Han
7ac5ac52f9 Merge 4x4 block level partition into codebase
Move 4x4/4x8/8x4 partition coding out of experimental list.

This commit fixed the unit test failure issues. It also resolved
the merge conflicts between 4x4 block level partition and iterative
motion search for comp_inter_inter.

Change-Id: I898671f0631f5ddc4f5cc68d4c62ead7de9c5a58
2013-05-23 11:58:50 +01:00
Jingning Han
d2cacdc530 Merge "Make the intra rd search support 8x4/4x8" into experimental 2013-05-22 10:00:15 -07:00
Yaowu Xu
8ba92a0bed changes intra coding to be based on txfm block
This commit changed the encoding and decoding of intra blocks to be
based on transform block. In each prediction block, the intra coding
iterates thorough each transform block based on raster scan order.

This commit also fixed a bug in D135 prediction code.

TODO next:
The RD mode/txfm_size selection should take this into account when
computing RD values.

Change-Id: I6d1be2faa4c4948a52e830b6a9a84a6b2b6850f6
2013-05-22 11:53:19 +01:00
Jingning Han
f153a5d063 Make the intra rd search support 8x4/4x8
This commit allows the rate-distortion optimization of intra coding
capable of supporting 8x4 and 4x8 partition settings.

It enables the entropy coding of intra modes in key frame using a
unified contextual probability model conditioned on its above/left
prediction modes.

Coding performance:
derf 0.464%

Change-Id: Ieed055084e11fcb64d5d5faeb0e706d30268ba18
2013-05-21 21:03:00 -07:00
Jingning Han
1f7d810a72 Merge "Deprecate 4x4 intra modes from bit-stream" into experimental 2013-05-21 15:59:58 -07:00
Yunqing Wang
e9950b0768 Unnecessary passing of prev_mi
Passing prev_mi is not needed.

Change-Id: I6453bb47514ddafd555864d190ecf6d1a6bdc136
2013-05-21 09:22:49 -07:00
Jingning Han
1e6be7bc75 Deprecate 4x4 intra modes from bit-stream
Replace B_DC_PRED like syntax element writing/reading with sb_ymode
set (e.g., DC_PRED, etc).

Change-Id: I293006a6b3bcd130c08ea9f053e7a79c6819c6f8
2013-05-20 12:14:24 -07:00
Jingning Han
810b612c23 Enable bit-stream support to 8x4 and 4x8 partition
The recursive partition type search is enabled down to 4x4, 4x8 and
8x4, followed by the corresponding rate-distortion optimization for
the per-partition encoding mode decisions.

The bit-stream writing/reading synchronized in supporting the
rectangular partition of 8x8 block.

This provides above 1% coding performance gains on derf.

To do next:
1. re-design the rate-distortion loop for inter prediction below 8x8.
2. re-design the rate-distortion loop for intra prediction below 4x4.
3. make the loop-filter aware of rectangular partition of 8x8 block.
4. clean the unused probability models.
5. update default probability values.

Change-Id: Idd41a315b16879db08f045a322241f46f1d53f20
2013-05-19 14:59:04 -07:00
Dmitry Kovalev
1e3cdc1dd2 Merge "Combining integer and fractional parts of mvs for entropy coding." into experimental 2013-05-16 14:16:47 -07:00
Dmitry Kovalev
18375238e9 Combining integer and fractional parts of mvs for entropy coding.
Combining encode_nmv_component with encode_nmv_component_fp
and read_nmv_component with read_nmv_component_fp. Bitstream is slightly
changed (only the order of bits), here are the results on test sets:
stdhd: +0.047, yt: -0.038, derf: +0.001, hd: -0.011.

Change-Id: I1be312e976796df78ca63368702d0ee19f2b8c50
2013-05-15 12:37:03 -07:00
Jingning Han
1f26840fbf Enable recursive partition down to 4x4
This commit allows the rate-distortion optimization recursion
at encoder to go down to 4x4 block size. It deprecates the use
of I4X4_PRED and SPLITMV syntax elements from bit-stream
writing/reading. Will remove the unused probability models in
the next patch.

The partition type search and bit-stream are now capable of
supporting the rectangular partition of 8x8 block, i.e., 8x4
and 4x8. Need to revise the rate-distortion parts to get these
two partition tested in the rd loop.

Change-Id: I0dfe3b90a1507ad6138db10cc58e6e237a06a9d6
2013-05-14 12:39:56 -07:00
Dmitry Kovalev
a0b6b8a7d4 Merge "Removing unused code + little cleanup." into experimental 2013-05-08 11:23:14 -07:00
Dmitry Kovalev
cba0a5db2b Removing unused code + little cleanup.
Change-Id: I81c19a8f19cfb5c7183609656ade833d72feb500
2013-05-07 16:56:22 -07:00
Paul Wilkins
1ed57a6a62 Deprecate comp_interintra_pred experiment.
Delete code under the CONFIG_COMP_INTERINTRA_PRED
flag.

Change-Id: I3d1079cf46305c08f7e11d738596ea112e7b547f
2013-05-07 16:24:08 -07:00
Paul Wilkins
8c1b516d10 Deprecate the newbintramode experiment.
Clean out code relating to newbintramode.

Change-Id: Ie91f4f156cdf60ce0da8ca407c1c9cb00c7d0705
2013-05-07 16:00:59 -07:00
Jingning Han
776c1482a3 Merge SB8X8 into the codebase
Pull sb8x8 out of experimental list. verified via borg run tests.
Fixed unit test failures.

Change-Id: I12a4bbd17395930580c048ab68becad1ffe46e76
2013-05-07 09:08:25 -07:00
Jingning Han
35e8072613 Fix tile independency issue in sb8x8
Resolved the unit test failure on tile independence when sb8x8
enabled.

Change-Id: I23ca86c88170e49ca160e8e897d913905e6080ce
2013-05-06 21:56:45 -07:00
Scott LaVarnway
be7d4f96a2 Merge "Removed is_inter_mode() check" into experimental 2013-05-03 07:34:29 -07:00
Jingning Han
1e26cdc178 Merge "Cache splitmv motion vectors appropriately in decoder." into experimental 2013-05-02 14:32:57 -07:00
Ronald S. Bultje
c8de931e06 Merge "Fix i4x4 mode reading and writing in sb8x8 bitstream." into experimental 2013-05-02 13:56:06 -07:00
Ronald S. Bultje
168d313888 Cache splitmv motion vectors appropriately in decoder.
This fixes some problems in splitmv-related bitstream parsing in the
sb8x8 experiment.

Change-Id: Id168f9ec9c88626877d8f536e6f394b6f4f782e4
2013-05-02 13:55:35 -07:00
Ronald S. Bultje
e931dac733 Fix i4x4 mode reading and writing in sb8x8 bitstream.
Don't allow i4x4 except for sb8x8 recursion step. Read only 4 (not 16)
i4x4 submodes if we are i4x4.

Change-Id: Iaaaced1a134006b2c96eed66f014300eae41e0ed
2013-05-02 13:01:09 -07:00
Scott LaVarnway
37c3144ed7 Removed is_inter_mode() check
If a reference frame is inter, the only valid modes would
be inter modes.  This check is unnecessary.

Change-Id: Ib8433ab5a3418f94149ee4e3062d48d7740d225a
2013-05-02 13:44:33 -04:00
Dmitry Kovalev
519d9f3e16 Merge "Using treed_read/treed_write functions for segment ids." into experimental 2013-05-02 10:40:58 -07:00
Ronald S. Bultje
29492a5e14 Fix bug in sb8x8 bitstream decoding.
Change-Id: I7ac69a369851b09d9422f2e3c62b12b3fcd49a4c
2013-05-01 17:13:27 -07:00
Jingning Han
2bf1dc2e23 Enable bit-stream support to SB8X8
This commit enables bit-stream writing and reading for recursive
partition down to block 8x8.

Change-Id: I163cd48d191cc94ead49cbb7fc91374f6bf204e2
2013-05-01 13:03:54 -07:00
Ronald S. Bultje
d068d869b9 sb8x8 integration in rd loop.
Work-in-progress, not yet ready for review. TODO items:
- bitstream writing (encoder) and reading (decoder)
- decoder reconstruction

Change-Id: I5afb7284e7e0480847b47cd0097cb469433c9081
2013-04-30 16:13:20 -07:00
Dmitry Kovalev
b5364d4f3b Using treed_read/treed_write functions for segment ids.
Changing the order of probabilities inside mb_segment_tree_probs in order
to use treed_read/treed_write function instead of custom code.

Change-Id: I843487d5057913b9358db73da270893eefecc6c8
2013-04-30 14:06:49 -07:00
Jingning Han
9b935f9992 Add forward probability model update for partition
Enable forward model update for partition syntax coding.

Change-Id: If47b423b6d12f34614c57f25d235dc9ba688efc5
2013-04-27 16:47:04 +01:00
Ronald S. Bultje
1a46b30ebe Grow MODE_INFO array to use an 8x8 basis.
Change-Id: I087e08e7909a406b71715b8525c104208daa6889
2013-04-26 11:57:17 -07:00
Scott LaVarnway
57f180b388 Removed bmi from blockd
This originally was "Removed update_blockd_bmi()".  Now,
this patch removed bmi from blockd and uses the bmi found
in mode_info_context.  Eliminates unnecessary bmi copies between
blockd and mode_info_context.

Change-Id: I287a4972974bb363f49e528daa9b2a2293f4bc76
2013-04-26 10:19:43 -04:00
Dmitry Kovalev
61a47da869 Adding is_inter_mode function.
Change-Id: I2d32d46002cb92c63050c2b8328865c406103621
2013-04-25 10:23:00 -07:00
Yaowu Xu
bcf82cf503 Merge two similar functions into one
Function set_mb_row() and set_mb_col() do similar work and are always
called together, this commit merged them into a single function for
clarity and easy maintainence.  This was a TODO item.

Change-Id: I956bd9ed6afb8b2b0469b20fd8bc893b26f8a0f3
2013-04-24 15:58:03 -07:00
Jingning Han
ff2b8aa2c9 Contextual entropy coding of partition syntax
This commit enables selecting probability models for recursive block
partition information syntax, depending on its above/left partition
information, as well as the current block size. These conditional
probability models are reasonably stationary and consistent across
frames, hence the backward adaptive approach is used to maintain and
update the contextual models.

It achieves coding performance gains (on top of enabling rectangular
block sizes):
derf:   0.242%
yt:     0.391%
hd:     0.376%
stdhd:  0.645%

Change-Id: Ie513d9673337f0d27abd65fb566b711d0844ec2e
2013-04-24 14:23:14 -07:00
Paul Wilkins
31ee193a9c Extension of segmentation to 8 segments.
Also some further simplification following removal
of top node code.

There is an issue in regards to the shared file vp8cx.h
in regard to the roi_map as this interface assumes that
there are only 4 segments. I have left the value here as
4 for now meaning that the roi_map interface is broken
for VP9.

Note that this change would have been easier if I hadn't
had to search for hard wire instances of the number 4
and <= 3.

Change-Id: Ia8b6deea4be4dbd20deb1656e689dd43a5f190e8
2013-04-24 16:36:47 +01:00
Paul Wilkins
c77aff1286 Simplify Segment Coding
Remove top node optimization.
The improvement this gives is not sufficient to justify
the extra complexity.

Change-Id: I2bb4a12a50ffd52cacfa4a3e8acbb2e522066905
2013-04-24 10:47:12 +01:00
Ronald S. Bultje
276a1106e6 Merge changes I54acef34,I72d42971 into experimental
* changes:
  Make some sb_type comparisons independent of literal enum values.
  Make loopfilter aware of rectangular blocks.
2013-04-23 15:29:19 -07:00
Dmitry Kovalev
a21359cbea Merge "Adding select_txfm_size function + vp9_decode_frame cleanup." into experimental 2013-04-23 13:53:14 -07:00
Ronald S. Bultje
5ba98ebcf1 Make some sb_type comparisons independent of literal enum values.
Change-Id: I54acef342b8e787e05af0febd7cf0d7d10288383
2013-04-23 12:34:32 -07:00
Scott LaVarnway
e3167b8c23 Merge "Eliminated prev_mip memsets/memcpys" into experimental 2013-04-23 10:22:13 -07:00
Dmitry Kovalev
d5413a8e82 Adding select_txfm_size function + vp9_decode_frame cleanup.
Change-Id: I7594ca84106ee48f83e6fc3098c0de7a28d5a183
2013-04-22 14:39:21 -07:00
John Koleszar
a443447b8b Move pre, second_pre to per-plane MACROBLOCKD data
Continue moving framebuffers to per-plane data.

Change-Id: I237e5a998b364c4ec20316e7249206c0bff8631a
2013-04-22 12:05:24 -07:00
Deb Mukherjee
0aa79be7d5 Removes the code_nonzerocount experiment
This patch does not seem to give any benefits.

Change-Id: I9d2b4091d6af3dfc0875f24db86c01e2de57f8db
2013-04-22 10:58:49 -07:00
Dmitry Kovalev
c7a38f77ef Merge "Removing get_segment_id function and using existing vp9_get_pred_mb_segid." into experimental 2013-04-20 11:05:50 -07:00
Scott LaVarnway
9662531d77 Eliminated prev_mip memsets/memcpys
For 1080 material, this buffer is currently 2,270,928 bytes.  This patch swaps
ptrs instead of copying and uses the last show_frame flag instead of setting
the entire buffer to zero.  For the test clip used, the decoder improved by up
to 1%.


Change-Id: I686825712ad56043e09ada9808dc489f875a6ce0
2013-04-19 18:38:10 -04:00
Dmitry Kovalev
c09f652590 Removing get_segment_id function and using existing vp9_get_pred_mb_segid.
Change-Id: Iff35d4b2f8f65511f80c594958c01fb4673fa033
2013-04-19 14:25:32 -07:00
Paul Wilkins
fb754fd37e Merge "Mv ref candidates cut to 2." into experimental 2013-04-19 14:09:44 -07:00
Dmitry Kovalev
ce50f911f0 Segmentation cleanup, adding {set, get}_segment_id functions.
Change-Id: I55c2688e06ae5d7dfccc1b1983f233ab1c7978db
2013-04-19 11:17:23 -07:00
Paul Wilkins
de80da39dc Mv ref candidates cut to 2.
Further simplification of mvref search to return
only the top two candidates. Distance weights removed
as the test order reflects distance anyway.

Change-Id: I0518cab7280258fec2058670add4f853fab7b855
2013-04-19 16:13:53 +01:00
Paul Wilkins
aa76bf3d28 Removal of CONFIG_NEW_MVREF experiment.
This experiment has failed to give much benefit but
does add complexity so deprecated.

Change-Id: Ic7b929ba706390b9907ef0b4f965bd401ca799a4
2013-04-19 11:54:02 +01:00
Dmitry Kovalev
3fe7b64722 Merge "Motion vector decoding code cleanup." into experimental 2013-04-18 14:38:38 -07:00
Dmitry Kovalev
eae38910ce Motion vector decoding code cleanup.
Change-Id: I9790baedbd4acb7113575efc6f228b2656c42ff7
2013-04-18 11:05:34 -07:00
Dmitry Kovalev
0db175ffed Changing argument type of vp9_get_mv_joint from MV to MV*.
Change-Id: I28c3026946fc1bde7074e6e0198da93bb0d75dfe
2013-04-17 11:21:28 -07:00
Jingning Han
90a91cc683 Recursive partition syntax coding
Enable recursive partition information coding from SB64X64 down to
MB16X16. The bit-stream syntax is now supporting rectangular block
sizes. It starts from SB64X64 and recursively describes the partition
type of the current block. If the partition type is PARTITION_NONE,
the block is coded as a single unit; if it is PARTITION_HORZ or
PARTITION_VERT, the block is segmented into two independently coded
rectangular units, with no further partition needed; otherwise, the
block is segmented into 4 square blocks. i.e., PARTITION_SPLIT case,
each can be potentially further partitioned.

Forward adaptive probability modeling is used for the partition
information coding, conditioned on the current block size.

Change-Id: I499365fb547839d555498e3bcc0387d8a3587d87
2013-04-16 18:41:26 -07:00
Dmitry Kovalev
1db8fa5280 Replacing BOOL_DECODER with vp9_reader inside vp9_decodemv.
Also a little bit of code cleanup: replacing pbi->common with cm,
pbi->mb with xd.

Change-Id: I2f70a005704a2833d644dfaafc4cd354e6e8532b
2013-04-16 17:45:57 -07:00
John Koleszar
e3cfe4e89e Remove the mb_no_coeff_skip flag
This flag was added to VP8 to allow a mode where MB-level skipping
was not allowed, saving a bit per mb. It was never used in practice,
and hasn't been tested in VP9, so remove it.

Change-Id: Id450ec6904c6d06c1919508e7efc52d05cde5631
2013-04-16 12:36:16 -07:00
Dmitry Kovalev
fd61b7ea10 Adding mv_joint_vertical and mv_joint_horizontal functions.
Change-Id: Ieaec2c48f3752b8558ba051caaf4ba2ab0e9e84d
2013-04-15 12:07:26 -07:00
Dmitry Kovalev
50a85d1428 Motion vector decoder cleanup.
Change-Id: I7d3b2ef26aba3dfb1d5c83309aab2024e04ee819
2013-04-12 12:31:23 -07:00
Yaowu Xu
7de5edd14a Rename B_PRED to I4X4_PRED
So it is consistent with I8x8_PRED.

Change-Id: Iefa65124b2419690d83e526c611129c0ede29d11
2013-04-12 09:23:58 -07:00
Ronald S. Bultje
8fb5be48a6 Make usage of sb_type independent of literal values.
Change-Id: I0d12f9ef9d960df0172a1377f8e5236eb6d90492
2013-04-10 17:38:57 -07:00
Jingning Han
12bf0796e6 Clamp inferred motion vectors only
Clamp only the motion vectors inferred from neighboring reference
macroblocks. The motion vectors obtained through motion search in
NEWMV mode are constrained during the search process, which allows
a relatively larger referencing region than the inferred mvs.
Hence further clamping the best mv provided by the motion search may
affect the efficacy of NEWMV mode.

Synchronized the decoding process. The decoded mvs in NEWMV modes
should be guaranteed to fit in the effective range. Put a mv range
clamping function there for security purpose.

This improves the coding performance of high motion sequences, e.g.,
derf set:
foreman 0.233%
husky   0.175%
icd     0.135%
mother_daughter 0.337%
pamphlet        0.561%

stdhd set:
blue_sky 0.408%
city     0.455%
also saw sunflower goes down by -0.469%.

Change-Id: I3fcbba669e56dab779857a8126a91b926e899cb5
2013-04-08 11:37:03 -07:00
Dmitry Kovalev
19fb4df8fe Motion vector decoder cleanup.
Better formatting, shorter code, adding read_switchable_filter_type
function.

Change-Id: Ib919b529385cae34c2d682b1c3093518b6942fc1
2013-04-03 17:43:45 -07:00
Deb Mukherjee
fe9b5143ba Framework changes in nzc to allow more flexibility
The patch adds the flexibility to use standard EOB based coding
on smaller block sizes and nzc based coding on larger blocksizes.
The tx-sizes that use nzc based coding and those that use EOB based
coding are controlled by a function get_nzc_used().
By default, this function uses nzc based coding for 16x16 and 32x32
transform blocks, which seem to bridge the performance gap
substantially.

All sets are now lower by 0.5% to 0.7%, as opposed to ~1.8% before.

Change-Id: I06abed3df57b52d241ea1f51b0d571c71e38fd0b
2013-03-28 09:33:50 -07:00
Dmitry Kovalev
8c69c193b5 Extract setup_frame_size and update_frame_context functions.
Extracting setup_frame_size and update_frame_context functions. Introducing
vp9_read_prob function as shortcut for (vp9_prob)vp9_read_literal(r, 8).

Change-Id: Ia5c68fd725b2d1b9c5eb20f69cacb62361b5a3dd
2013-03-27 14:04:35 -07:00
Deb Mukherjee
23144d2345 Implicit weighted prediction experiment
Adds an experiment to use a weighted prediction of two INTER
predictors, where the weight is one of (1/4, 3/4), (3/8, 5/8),
(1/2, 1/2), (5/8, 3/8) or (3/4, 1/4), and is chosen implicitly
based on consistency of the predictors to the already
reconstructed pixels to the top and left of the current macroblock
or superblock.

Currently the weighting is not applied to SPLITMV modes, which
default to the usual (1/2, 1/2) weighting. However the code is in
place controlled by a macro. The same weighting is used for Y and
UV components, where the weight is derived from analyzing the Y
component only.

Results (over compound inter-intra experiment)
derf: +0.18%
yt: +0.34%
hd: +0.49%
stdhd: +0.23%

The experiment suggests bigger benefit for explicitly signaled weights.

Change-Id: I5438539ff4485c5752874cd1eb078ff14bf5235a
2013-03-26 16:58:56 -07:00
Dmitry Kovalev
407940243f Changing initialization order of mb_to_top_edge & mb_to_bottom_edge
Making consistent initialization of mb_to_{top,botton,left,right}_edge
variables after set_mb_row & set_mb_col calls. A little bit of code cleanup
additionally.

Change-Id: I245bfe32c5701e9836956dc25cf8c770d109cbc1
2013-03-21 12:51:57 -07:00
Dmitry Kovalev
56f3a2c663 Code cleanup: lower case variable names.
Renaming Width to width, Height to height and Version to version in
several structs and function signatures.

Change-Id: I084c3f7e747cb2ce3345aff27a3dff9b13a87543
2013-03-20 16:41:30 -07:00
Dmitry Kovalev
4a0686e716 Motion vector code cleanup.
Moving identical code to separate functions, variable declaration and
initialization on the same line.

Change-Id: Ifa6474a64189f9d8051e88e19850453b0227752c
2013-03-15 13:16:58 -07:00
Deb Mukherjee
a28139c849 Continued experiment with nonzero count
Adds probability updates for extra bits for the nzcs, code for
getting nzc stats, plus some minor cleanups and fixes.

Change-Id: If2814e7f04fb52f5025ad9f400f3e6c50a00b543
2013-03-08 16:37:08 -08:00
Deb Mukherjee
eb6ef2417f Coding con-zero count rather than EOB for coeffs
This patch revamps the entropy coding of coefficients to code first
a non-zero count per coded block and correspondingly remove the EOB
token from the token set.

STATUS:
Main encode/decode code achieving encode/decode sync - done.
Forward and backward probability updates to the nzcs - done.
Rd costing updates for nzcs - done.
Note: The dynamic progrmaming apporach used in trellis quantization
is not exactly compatible with nzcs. A suboptimal approach has been
used instead where branch costs are updated to account for changes
in the nzcs.

TODO:
Training the default probs/counts for nzcs

Change-Id: I951bc1e22f47885077a7453a09b0493daa77883d
2013-03-07 07:20:30 -08:00
Dmitry Kovalev
0c0de00217 Motion vectors code cleanup.
Fixing indentation, removing redundant parenthesis, deciphering single
letter variable names, better spacing.

Change-Id: I1d447a7d69eddbf1e94e0820423615f40ea2d591
2013-02-27 11:48:13 -08:00
John Koleszar
77f88e97fa Combined motion compensation with scaled predictors
This patch extends the previous support for using references of a
different resolution in ZEROMV mode to all inter prediction modes.
Subpixel based best-mv scoring is disabled when the reference frame
differs in resolution from the current frame.

Change-Id: Id4dc3e5e6692de98d9857fd56bfad3ac57e944ac
2013-02-27 08:22:39 -08:00
John Koleszar
eb939f45b8 Spatial resamping of ZEROMV predictors
This patch allows coding frames using references of different
resolution, in ZEROMV mode. For compound prediction, either
reference may be scaled.

To test, I use the resize_test and enable WRITE_RECON_BUFFER
in vp9_onyxd_if.c. It's also useful to apply this patch to
test/i420_video_source.h:

  --- a/test/i420_video_source.h
  +++ b/test/i420_video_source.h
  @@ -93,6 +93,7 @@ class I420VideoSource : public VideoSource {

     virtual void FillFrame() {
       // Read a frame from input_file.
  +    if (frame_ != 3)
       if (fread(img_->img_data, raw_sz_, 1, input_file_) == 0) {
         limit_ = frame_;
       }

This forces the frame that the resolution changes on to be coded
with no motion, only scaling, and improves the quality of the
result.

Change-Id: I1ee75d19a437ff801192f767fd02a36bcbd1d496
2013-02-26 23:54:23 -08:00
Ronald S. Bultje
0c9e2e9a1d Split coefficient token tables intra vs. inter.
Change-Id: I5416455f8f129ca0f450d00e48358d2012605072
2013-02-23 07:33:46 -08:00
John Koleszar
1d60b6bcb5 Merge "Replace as_mv struct with array" into experimental 2013-02-12 13:59:04 -08:00
John Koleszar
7ca517f755 Replace as_mv struct with array
Replace as_mv.{first, second} with a two element array, so that they
can easily be processed with an index variable.

Change-Id: I1e429155544d2a94a5b72a5b467c53d8b8728190
2013-02-08 20:23:35 -08:00
Paul Wilkins
bbede82f24 Nearest / Zero Mv default entropy tweak.
Tweak to default mode context to account for the fact
that when there are no non zero motion candidates
Nearest is now the preferred mode for coding a 0,0
vector.

Also resolve duplicate function name and typos.

Change-Id: I76802788d46c84e3d1c771be216a537ab7b12817
2013-02-08 10:16:13 +00:00
Ronald S. Bultje
1407bdc243 [WIP] Add column-based tiling.
This patch adds column-based tiling. The idea is to make each tile
independently decodable (after reading the common frame header) and
also independendly encodable (minus within-frame cost adjustments in
the RD loop) to speed-up hardware & software en/decoders if they used
multi-threading. Column-based tiling has the added advantage (over
other tiling methods) that it minimizes realtime use-case latency,
since all threads can start encoding data as soon as the first SB-row
worth of data is available to the encoder.

There is some test code that does random tile ordering in the decoder,
to confirm that each tile is indeed independently decodable from other
tiles in the same frame. At tile edges, all contexts assume default
values (i.e. 0, 0 motion vector, no coefficients, DC intra4x4 mode),
and motion vector search and ordering do not cross tiles in the same
frame.
t log

Tile independence is not maintained between frames ATM, i.e. tile 0 of
frame 1 is free to use motion vectors that point into any tile of frame
0. We support 1 (i.e. no tiling), 2 or 4 column-tiles.

The loopfilter crosses tile boundaries. I discussed this briefly with Aki
and he says that's OK. An in-loop loopfilter would need to do some sync
between tile threads, but that shouldn't be a big issue.

Resuls: with tiling disabled, we go up slightly because of improved edge
use in the intra4x4 prediction. With 2 tiles, we lose about ~1% on derf,
~0.35% on HD and ~0.55% on STD/HD. With 4 tiles, we lose another ~1.5%
on derf ~0.77% on HD and ~0.85% on STD/HD. Most of this loss is
concentrated in the low-bitrate end of clips, and most of it is because
of the loss of edges at tile boundaries and the resulting loss of intra
predictors.

TODO:
- more tiles (perhaps allow row-based tiling also, and max. 8 tiles)?
- maybe optionally (for EC purposes), motion vectors themselves
  should not cross tile edges, or we should emulate such borders as
  if they were off-frame, to limit error propagation to within one
  tile only. This doesn't have to be the default behaviour but could
  be an optional bitstream flag.

Change-Id: I5951c3a0742a767b20bc9fb5af685d9892c2c96f
2013-02-05 15:43:03 -08:00
Deb Mukherjee
a53be60904 Merge "Adding a frame parallel decoding mode" into experimental 2013-01-30 12:03:45 -08:00
Ronald S. Bultje
3a4b18bc67 don't code the branch for the predicted seg_id if that flag is false.
Change-Id: Icb6e21dc0c2d9918faa33c8bf70943660df7ad88
2013-01-30 09:30:46 -08:00
Paul Wilkins
0ff9b033b0 Segment Skip Flag
First step in simplifying the segment mode and
segment EOB flags into a simpler segment skip
flag that implies 0,0 mv and EOB at position 0.

Change-Id: Ib750cac31a7a02dc21082580498efd9f7d8d72a5
2013-01-28 17:28:04 +00:00
Deb Mukherjee
dfd89f2eab Adding a frame parallel decoding mode
Adds a flag to disable features that would inhibit frame parallel
decoding. This includes backward adaptation and MV sorting based
on search in ref frame buffer.

Also includes some minor clean-ups.

Change-Id: I434846717a47b7bcb244b37ea670c5cdf776f14d
2013-01-25 17:16:19 -08:00
Deb Mukherjee
01cafaab1d Adds an error-resilient mode with test
Adds an error-resilient mode where frames can be continued
to be decoded even when there are errors (due to network losses)
on a prior frame. Specifically, backward updates are turned off
and probabilities of various symbols are reset to defaults at
the beginning of each frame. Further, the last frame's mvs are
not used for the mv reference list, and the sorting of the
initial list based on search on previous frames is turned off
as well.

Also adds a test where an arbitrary set of frames are skipped
from decoding to simulate errors. The test verifies (1) that if
the error frames are droppable - i.e. frame buffer updates have
been turned off - there are no mismatch errors for the remaining
frames after the error frames; and (2) if the error-frames are non
droppable, there are not only no decoding errors but the mismatch
PSNR between the decoder's version of the post-error frames and the
encoder's version is at least 20 dB.

Change-Id: Ie6e2bcd436b1e8643270356d3a930e8989ff52a5
2013-01-23 21:56:15 -08:00
John Koleszar
da832a80e4 Start to anonymize reference frames
Remove lst_fb_idx, gld_fb_idx, alt_fb_idx, refresh_last_frame,
refresh_golden_frame, refresh_alt_ref_frame from common. Gold/Alt are
encode side conventions. From the decoder's perspective, we want to be
dealing with numbered references.

Updates to active_ref 2 signal mode context switches, vestigial from
refresh_alt_ref_frame. This needs some clean up to make sense with
increased numbers of reference frames, as well as reimplementing the
swapping of alt/golden which was previously done using the
buffer-to-buffer copy mechanism removed in an earlier commit.

Change-Id: I7334445158b7666f9295d2a2dd22aa03f4485f58
2013-01-16 14:06:23 -08:00
Ronald S. Bultje
c9071601a2 Remove compound intra-intra experiment.
This experiment gives little gains and adds relatively much code
complexity (and it hinders other experiments), so let's get rid of
it.

Change-Id: Id25e79a137a1b8a01138aa27a1fa0ba4a2df274a
2013-01-14 15:47:25 -08:00
Ronald S. Bultje
aa2effa954 Merge tx32x32 experiment.
Change-Id: I615651e4c7b09e576a341ad425cf80c393637833
2013-01-10 08:23:59 -08:00
Adrian Grange
7d6b5425d7 New prediction filter
This patch removes the old pred-filter experiment and replaces it
with one that is implemented using the switchable filter framework.

If the pred-filter experiment is enabled, three interopolation
filters are tested during mode selection; the standard 8-tap
interpolation filter, a sharp 8-tap filter and a (new) 8-tap
smoothing filter.

The 6-tap filter code has been preserved for now and if the
enable-6tap experiment is enabled (in addition to the pred-filter
experiment) the original 6-tap filter replaces the new 8-tap smooth
filter in the switchable mode.

The new experiment applies the prediction filter in cases of a
fractional-pel motion vector. Future patches will apply the filter
where the mv is pel-aligned and also to intra predicted blocks.

Change-Id: I08e8cba978f2bbf3019f8413f376b8e2cd85eba4
2013-01-09 12:00:39 -08:00
Ronald S. Bultje
4455036cfc Merge superblocks (32x32) experiment.
Change-Id: I0df99742029834a85c4933652b0587cf5b6b2587
2013-01-08 12:54:45 -08:00
Ronald S. Bultje
c3941665e9 64x64 blocksize support.
3.2% gains on std/hd, 1.0% gains on hd.

Change-Id: I481d5df23d8a4fc650a5bcba956554490b2bd200
2013-01-05 18:20:25 -08:00
Yunqing Wang
e9c69ab102 Merge "Skip finding best ref_mvs when the mode is ZEROMV" into experimental 2013-01-02 11:45:19 -08:00
Paul Wilkins
313d1100af Added update-able mv-ref probabilities.
Part of NEW_MVREF experiment.
Added update-able probabilities.

Change-Id: I5a4fcf4aaed1d0d1dac980f69d535639a3d59401
2013-01-02 14:22:11 +00:00
Yunqing Wang
0f4de1573a Skip finding best ref_mvs when the mode is ZEROMV
Read mode before calling vp9_find_best_ref_mvs(). If the mode is
ZEROMV, the best ref_mvs are not needed. Then, we can skip calling
vp9_find_best_ref_mvs().

Change-Id: I5baa3658dd3f1c7107211cbbbcf919b4584be2e2
2012-12-27 16:18:53 -08:00
Paul Wilkins
d124465975 Further changes to mv reference code.
Some further changes and refactoring of mv
reference code and selection of center point for
searches. Mainly relates to not passing so many
different local copies of things around.

Some place holder comments.

Change-Id: I309f10ffe9a9cde7663e7eae19eb594371c8d055
2012-12-10 17:31:51 +00:00
Ronald S. Bultje
c456b35fdf 32x32 transform for superblocks.
This adds Debargha's DCT/DWT hybrid and a regular 32x32 DCT, and adds
code all over the place to wrap that in the bitstream/encoder/decoder/RD.

Some implementation notes (these probably need careful review):
- token range is extended by 1 bit, since the value range out of this
  transform is [-16384,16383].
- the coefficients coming out of the FDCT are manually scaled back by
  1 bit, or else they won't fit in int16_t (they are 17 bits). Because
  of this, the RD error scoring does not right-shift the MSE score by
  two (unlike for 4x4/8x8/16x16).
- to compensate for this loss in precision, the quantizer is halved
  also. This is currently a little hacky.
- FDCT and IDCT is double-only right now. Needs a fixed-point impl.
- There are no default probabilities for the 32x32 transform yet; I'm
  simply using the 16x16 luma ones. A future commit will add newly
  generated probabilities for all transforms.
- No ADST version. I don't think we'll add one for this level; if an
  ADST is desired, transform-size selection can scale back to 16x16
  or lower, and use an ADST at that level.

Additional notes specific to Debargha's DWT/DCT hybrid:
- coefficient scale is different for the top/left 16x16 (DCT-over-DWT)
  block than for the rest (DWT pixel differences) of the block. Therefore,
  RD error scoring isn't easily scalable between coefficient and pixel
  domain. Thus, unfortunately, we need to compute the RD distortion in
  the pixel domain until we figure out how to scale these appropriately.

Change-Id: I00386f20f35d7fabb19aba94c8162f8aee64ef2b
2012-12-07 14:45:05 -08:00
Deb Mukherjee
6632330702 Adds switchable filters with superblocks
Allows switchbale filters to be used without mismatch when the
superblock experiment is on.

Also removes a spurious clamping code in decodemv.c which causes
rare encode/decode mismatches.

Change-Id: I809d9ee0b2859552b613500b539a615515b863ae
2012-11-30 09:37:08 -08:00
Jim Bankoski
ef3c01ed67 Additional warning message cleanup.
Change-Id: I429a97ac57db3de0bf67ce3f3fe0c6b409f77a9e
2012-11-29 10:10:51 -08:00
Deb Mukherjee
0742b1e4ae Fixing 8x8/4x4 ADST for intra modes with tx select
This patch allows use of 8x8 and 4x4 ADST correctly for Intra
16x16 modes and Intra 8x8 modes when the block size selected
is smaller than the prediction mode. Also includes some cleanups
and refactoring.

Rebase.

Change-Id: Ie3257bdf07bdb9c6e9476915e3a80183c8fa005a
2012-11-28 16:21:12 -08:00
Jim Bankoski
c67873989f fixed includes to be fully specified
Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243
2012-11-28 10:53:17 -08:00
John Koleszar
fcccbcbb39 Add vp9_ prefix to all vp9 files
Support for gyp which doesn't support multiple objects in the same
static library having the same basename.

Change-Id: Ib947eefbaf68f8b177a796d23f875ccdfa6bc9dc
2012-11-27 14:12:30 -08:00