Commit Graph

1568 Commits

Author SHA1 Message Date
John Koleszar
6d482706ef SEG_LVL_MODE: don't code ref_frame if it's implicit
If the SEG_LVL_MODE is an intra mode, then the reference frame must be
INTRA_FRAME.

Change-Id: I2cdeeac3780c077c74b39ce89a528bc280674231
2012-11-13 15:22:09 -08:00
Yunqing Wang
e60478d46d Optimize 8x8 dequant and idct
Similar to 16x16 dequant and idct, based on the value of eobs, the
8x8 dequant and idct calculation was simplified to improve decorder
performance.

Combined vp9_dequant_idct_add_8x8 and vp9_dequant_dc_idct_add_8x8
to eliminate duplicate code.

Change-Id: Ia58e50ab27f7012b7379c495837c9c0b5ba9cf7f
2012-11-12 17:41:53 -08:00
Ronald S. Bultje
722972454c Fix edge MV handling in SBs.
Change-Id: Ia1eddb108ec463835e9de8769572d698e21bca49
2012-11-12 17:06:52 -08:00
Paul Wilkins
5d65614fdd Merge "New inter mode context" into experimental 2012-11-12 09:24:14 -08:00
Paul Wilkins
2669f42b0d New inter mode context
This change is a fix / extension of the newbestrefmv
experiment. As such it is presented without IFDEF.

The change creates a new context for coding inter modes
in vp9_find_mv_refs(). This replaces the context that
was previously calculated in vp9_find_near_mvs().
The new context is unoptimized and not necessarily
any better at this stage (results pending), but eliminates
the need for a legacy call to vp9_find_near_mvs().
Based on numbers from Scott, this could help decode
speed by several %.

In a later patch I will add support for forward update of
context (assuming this helps) and refine the context as
necessary.

Change-Id: I1cd991b82c8df86cc02237a34185e6d67510698a
2012-11-12 15:50:02 +00:00
Ronald S. Bultje
dd9d4f9e1a Fix data type for eobs[] array in SB 4x4 IDCT code.
This fixes encoder/decoder mismatches with the superblock experiment
turned on whenever a superblock is encoded using the 4x4 transform.

Change-Id: Iefec7055e8d25f8efdbba66c4261bbd322d335a3
2012-11-10 12:08:27 -08:00
Deb Mukherjee
d01357bbad New b-intra mode where direction is contextual
Preliminary patch on a new 4x4 intra mode B_CONTEXT_PRED where the
dominant direction from the context is used to encode. Various decoder
changes are needed to support decoding of B_CONTEXT_PRED in conjunction
with hybrid transforms since the scan order and tokenization depends on
the actual direction of prediction obtained from the context. Currently
the traditional directional modes are used in conjunction with the
B_CONTEXT_PRED, which also seems to provide the best results.

The gains are small - in the 0.1% range.

Change-Id: I5a7ea80b5218f42a9c0dfb42d3f79a68c7f0cdc2
2012-11-10 07:12:30 -08:00
Deb Mukherjee
3f7182cb0d Build fix in decoder/decodframe.c
Missing eobs agrument in vp9_dequant_idct_add_16x16_c

Change-Id: I826b1afa0a4ee6398f7373325aa0c75e6a866937
2012-11-09 12:48:35 -08:00
Yunqing Wang
71b1885403 Merge "Optimize 16x16 dequant and idct" into experimental 2012-11-09 08:30:53 -08:00
Ronald S. Bultje
1d4fbeb32a Implement tx_select for superblock encoding.
Also split superblock handling code out of decode_macroblock() into
a new function decode_superblock(), for easier readability.

Derf +0.05%, HD +0.2%, STDHD +0.1%. We can likely get further gains
by allowing to select mb_skip_coeff for a subset of the complete SB
or something along those lines, because although this change allows
coding smaller transforms for bigger predictors, it increases the
overhead of coding EOBs to skip the parts where the residual is
near-zero, and thus the overall gain is not as high as we'd expect.

Change-Id: I552ce1286487267f504e3090b683e15515791efa
2012-11-08 11:03:00 -08:00
Yunqing Wang
6c17c9fae0 Optimize 16x16 dequant and idct
As suggested by Yaowu, simplified 16x16 dequant and idct. In decoder,
after detoken step, we know the number of non-zero dct coefficients
(eobs) in a macroblock. Idct calculation can be skipped or simplified
based on eobs, which improves the decoder performance.

Change-Id: I9ffa1cb134bcb5a7d64fcf90c81871a96d1b4018
2012-11-07 20:04:09 -08:00
Yaowu Xu
0cedaa3631 merge full pixel refmv experiment
Change-Id: Ib39ad47a7d188f3b45416937b7eeb28c3e79b74c
2012-11-07 10:52:45 -08:00
Yaowu Xu
8a336b0d0d silent a lot of MSVC compiler warnings
there are still a couple type of warning left, which are related to
double constants assigned to float type. As those would be addressed
by the conversion of transforms into integer version. This commit
has left those un-dealt with.

Change-Id: I48fd9b489c0c27ad6b543f4177423419f929f2bb
2012-11-06 09:09:25 -08:00
Yunqing Wang
28826a913c Merge "Fix eobs data type" into experimental 2012-11-02 16:00:56 -07:00
Yunqing Wang
d41b0e6498 Fix eobs data type
The block sizes for decoding tokens are up to 16x16, which means
eobs is within [0, 256]. Using (signed) char is not enough. Changed
eobs data type to unsigned short to fix the problem.

Change-Id: I88a7d3098e1f1604c336d6adb88ffec971fb03a6
2012-11-02 13:22:29 -07:00
Ronald S. Bultje
3c4f47e843 Place non-static function prototypes in a header file.
Change-Id: I7cd21b9f1e69f4e0b3338bfe27b3c67e4b47de58
2012-11-02 11:22:57 -07:00
John Koleszar
06f3e51da6 vpx_scale: sync from master
Update vpx_scale from current code in master, run style transform, fix
lint warnings.

Change-Id: I47eadeb5b6881d448ea3728537f9b8a5b5aac78e
2012-11-02 08:44:54 -07:00
Ronald S. Bultje
4b2c2b9aa4 Rename vp8/ codec directory to vp9/.
Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4
2012-11-01 16:31:22 -07:00