Commit Graph

193 Commits

Author SHA1 Message Date
Yaowu Xu
f7dab60096 Merge experiment "widerlpf"
Change-Id: I0c94475075e66e13cfe4c20fab7db6474441ae86
2013-01-14 15:17:35 -08:00
Yaowu Xu
8750414368 Merge "change to evaluate reference mvs using above only" into experimental 2013-01-14 14:40:38 -08:00
Yaowu Xu
fdf8654189 change to evaluate reference mvs using above only
Change-Id: Ibcc342efac0a9be7a21d9b2c09984d9e16bbb225
2013-01-14 14:01:40 -08:00
Adrian Grange
7bcaac3e64 Merge prediction filter
Removed the experimental flag from around the prediction filter.

Change-Id: Ic1dd2db8fe8ac17ed5129f83094d4c5cdd5527d2
2013-01-14 12:57:07 -08:00
Ronald S. Bultje
aa2effa954 Merge tx32x32 experiment.
Change-Id: I615651e4c7b09e576a341ad425cf80c393637833
2013-01-10 08:23:59 -08:00
Ronald S. Bultje
460501fe84 Merge "Merge superblocks64 experiment." into experimental 2013-01-10 08:18:33 -08:00
Ronald S. Bultje
6884a83f06 Merge superblocks64 experiment.
Change-Id: If6c88752dffdb566f8d4322f135145270716fb8e
2013-01-09 17:21:40 -08:00
Yaowu Xu
51bae955e6 experiment a wider loop filter for MB border
when larger transforms are used

Change-Id: I25251442b44bf251df4c25a1c1fcf71fb2ad913b
2013-01-09 16:39:05 -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
Deb Mukherjee
4b7304ee68 Adds 64x64 hybrid dct/dwt transform
This is to add to the 64x64 transform experiment as an alternative to
a 64x64 DCT.
Two levels of wavelet decomposition is used on a 64x64 block, followed
by 16x16 DCT on the four lowest subbands. The highest three subbands
are left untransformed after the first level DWT.

Change-Id: I3d48d5800468d655191933894df6b46e15adca56
2013-01-08 14:05:58 -08:00
John Koleszar
879cb7d962 Merge vp9-preview changes into experimental branch
Incorportate vp9-preview changes by merging master branch into experimental.

Conflicts:
	test/test.mk
	vp9/common/vp9_filter.c
	vp9/common/vp9_idctllm.c
	vp9/common/vp9_invtrans.h
	vp9/common/vp9_mbpitch.c
	vp9/common/vp9_rtcd_defs.sh
	vp9/common/vp9_systemdependent.h
	vp9/common/vp9_type_aliases.h
	vp9/common/x86/vp9_asm_stubs.c
	vp9/common/x86/vp9_subpixel_mmx.asm
	vp9/decoder/vp9_decodframe.c
	vp9/decoder/vp9_dequantize.c
	vp9/decoder/vp9_dequantize.h
	vp9/decoder/vp9_onyxd_int.h
	vp9/encoder/vp9_bitstream.c
	vp9/encoder/vp9_encodeframe.c
	vp9/encoder/vp9_rdopt.c

Change-Id: I17f51c3666d1b59cf1a699f87607cbc5d30a87c5
2013-01-08 10:19:59 -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
John Koleszar
16810c10c1 Merge branch 'vp9-preview' of review:webm/libvpx
Merge the vp9-preview branch into master.

Change-Id: If700b9054676f24bed9deb59050af546c1ca5296
2012-12-27 09:37:19 -08:00
Deb Mukherjee
08f0c7cc9c New previous coef context experiment
Adds an experiment to derive the previous context of a coefficient
not just from the previous coefficient in the scan order but from a
combination of several neighboring coefficients previously encountered
in scan order.  A precomputed table of neighbors for each location
for each scan type and block size is used. Currently 5 neighbors are
used.

Results are about 0.2% positive using a strategy where the max coef
magnitude from the 5 neigbors is used to derive the context.

Change-Id: Ie708b54d8e1898af742846ce2d1e2b0d89fd4ad5
2012-12-19 18:49:39 -08:00
Johann
a1d929ea97 Unit tests do not build for iOS
Change-Id: I63423f8f2ec152cb490ddd9e6a94e431a11858f6
2012-12-13 11:40:15 -08:00
John Koleszar
d984763867 configure: add --enable-external-build support
First attempt at avoiding all the compile-time environment detection for
cases where you can generate the environments statically, as when the
real build is being performed by another build system.

Change-Id: Ie3cf95d71d6c5169900f31e263b84bc123cdf73f
2012-12-10 12:39:55 -08:00
Yaowu Xu
ab480cede5 experiment with CONTEXT conversion
This commit changed the ENTROPY_CONTEXT conversion between MBs that
have different transform sizes.

In additioin, this commit also did a number of cleanup/bug fix:
1. removed duplicate function vp9_fix_contexts() and changed to use
vp8_reset_mb_token_contexts() for both encoder and decoder
2. fixed a bug in stuff_mb_16x16 where wrong context was used for
the UV.
3. changed reset all context to 0 if a MB is skipped to simplify the
logic.

Change-Id: I7bc57a5fb6dbf1f85eac1543daaeb3a61633275c
2012-12-07 17:25:45 -08:00
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
0c917fc975 Compound inter-intra experiment
A patch on compound inter-intra prediction.

In compound inter-intra prediction, a new predictor for
16x16 inter coded MBs are obtained by combining a single
inter predictor with a 16x16 intra predictor, in a manner
that the weight varies with distance from the top/left
boundary. The current search strategy is to combine the best
inter mode with the best intra mode obtained independently.

Results so far:

derf +0.31%
yt +0.32%
std-hd +0.35%
hd +0.42%

It is conceivable that the results would improve somewhat
with a more thorough search strategy where all intra modes
are searched given the best mv, or even a joint search for
the best mv and the best intra mode.

Change-Id: I7951f1ed0d6eb31ca32ac24d120f1585bcd8d79b
2012-11-16 06:56:29 -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
John Koleszar
2c08c28191 Merge with upstream experimental changes
Include upstream changes (unit test fixes, in particular) into the
merged code base.

Change-Id: I096f8a9d09e2532fbec0c95d7a995ab22fa54b29
2012-11-07 11:46:23 -08:00
John Koleszar
7b8dfcb5a2 Rough merge of master into experimental
Creates a merge between the master and experimental branches. Fixes a
number of conflicts in the build system to allow *either* VP8 or VP9
to be built. Specifically either:

  $ configure --disable-vp9 $ configure --disable-vp8
  --disable-unit-tests

VP9 still exports its symbols and files as VP8, so that will be
resolved in the next commit.

Unit tests are broken in VP9, but this isn't a new issue. They are
fixed upstream on origin/experimental as of this writing, but rebasing
this merge proved difficult, so will tackle that in a second merge
commit.

Change-Id: I2b7d852c18efd58d1ebc621b8041fe0260442c21
2012-11-07 11:30:16 -08:00
Yaowu Xu
0cedaa3631 merge full pixel refmv experiment
Change-Id: Ib39ad47a7d188f3b45416937b7eeb28c3e79b74c
2012-11-07 10:52:45 -08:00
Johann
8ca1ed2348 Add option to disable documentation
Documentation is typically auto-detected by checking for php and
doxygen. Add an option to explicitly disable it.

Remove toggle keywords from libraries, examples, documentation and
unit tests. They were not consistent with the default status.

Change-Id: I21049675ccfd8e58ac612cd058641b197db5c0eb
2012-11-06 07:24:04 -08:00
Ronald S. Bultje
4b2c2b9aa4 Rename vp8/ codec directory to vp9/.
Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4
2012-11-01 16:31:22 -07:00
Paul Wilkins
80674b4330 Merge "Separated experiment for subpel refmv selection" into experimental 2012-10-30 11:00:30 -07:00
Paul Wilkins
e05e6e107e Remove old experiment.
Delete code relating to featureupdates experiment.

Change-Id: If218762c658bb8cbb3007cf2069123b3e05adcbc
2012-10-30 17:36:09 +00:00
Yaowu Xu
24265e884e Separated experiment for subpel refmv selection
As suggested by Paul, this commit separate the subpel refmv selection
into a separate experiment. It also changed a couple variable names
to better reflect the nature of the variables.

Change-Id: Id951c3cadc61a982dd15afe641000f60213b8995
2012-10-30 10:06:59 -07:00
Yaowu Xu
db54baf9aa Remove "switchable_interp" from experiment list
Now this experiment has been merged.

Change-Id: I6c93784df89434c52a4eb8f977cd3745e269abf9
2012-10-30 08:53:47 -07:00
Ronald S. Bultje
8166657109 Make implicit_segmentation-related code an experiment.
This way, the code is not compiled in by default, thus decreasing
overall binary size.

Change-Id: I85cac8f5a22a51a7d99c820ef6d6ed179d4106a0
2012-10-29 21:15:42 -07:00
Deb Mukherjee
04d62a989b Merging in the TX_SELECT experiment
Change-Id: I0d306b0062be59bc785b65882691c956c8b5e7c8
2012-10-22 16:58:57 -07:00
Deb Mukherjee
78808ad9fb Merge of the newmventropy experiment
Removes the old mv encoding code.

Change-Id: I1026d48cc5ac15ccb776f98463e929254c3dc7da
2012-10-22 15:23:41 -07:00
Deb Mukherjee
f10465634b Merging the hybrid transform experiments
Change-Id: I99f1982b30a630a9a070a8326d83b34a33cba14c
2012-10-22 11:55:29 -07:00
Deb Mukherjee
a7333b0a5b Merge of the TX_16X16 experiment
Change-Id: I22aa803ffff330622cdb77277e7b196a9766f882
2012-10-10 17:05:54 -07:00
Johann
ec658125b0 Add option to disable documentation
Documentation is typically auto-detected by checking for php and
doxygen. Add an option to explicitly disable it.

Remove toggle keywords from libraries, examples, documentation and
unit tests. They were not consistent with the default status.

Change-Id: I21049675ccfd8e58ac612cd058641b197db5c0eb
2012-10-10 09:19:26 -07:00
Ronald S. Bultje
9ca3c8b2c4 Selectable transform size try 2.
Results: derf (vanilla or +hybridtx) +0.2% and (+hybrid16x16
or +tx16x16) +0.7%-0.8%; HD (vanilla or +hybridtx) +0.1-0.2%
and (+hybrid16x16 or +tx16x16) +1.4%, STD/HD (vanilla or +hybridtx)
about even, and (+hybrid16x16 or +tx16x16) +0.8-1.0%.

Change-Id: I03899e2f7a64e725a863f32e55366035ba77aa62
2012-10-09 09:18:21 -07:00
Deb Mukherjee
00f9eb6590 New motion vector entropy coding
Adds a new experiment with redesigned/refactored motion vector entropy
coding. The patch also takes a first step towards separating the
integer and fractional pel components of a MV. However the fractional
pel encoding still depends on the integer pel part and so they are
not fully independent. Further experiments are in progress to see
how much they can be decoupled without affecting performance.
All components including entropy coding/decoding, costing for MV
search, forward updates and backward updates to probability tables,
have been implemented.

Results so far:
derf: +0.19%
std-hd: +0.28%
yt: +0.80%
hd: +1.15%

Patch: Simplifies the fractional pel models:
derf: +0.284%
std-hd: +0.289%
yt: +0.849%
hd: +1.254%

Patch: Some changes in the models, rebased.
derf: +0.330%
std-hd: +0.306%
yt: +0.816%
hd: +1.225%

Change-Id: I646b3c48f3587f4cc909639b78c3798da6402678
2012-09-06 08:28:21 -07:00
Jingning Han
de6dfa6bb0 hybrid transform of 16x16 dimension
Enable ADST/DCT of dimension 16x16 for I16X16 modes. This change provides
benefits mostly for hd sequences.

Set up the framework for selectable transform dimension.

Also allowing quantization parameter threshold to control the use
of hybrid transform (This is currently disabled by setting threshold
always above the quantization parameter. Adaptive thresholding can
be built upon this, which will further improve the coding performance.)

The coding performance gains (with respect to the codec that has all
other configuration settings turned on) are

derf:   0.013
yt:     0.086
hd:     0.198
std-hd: 0.501

Change-Id: Ibb4263a61fc74e0b3c345f54d73e8c73552bf926
2012-08-30 16:52:25 -07:00
Paul Wilkins
2d60bee1fb New Motion Reference Search
Alternative strategy for finding a list of candidate motion
vectors to use as reference values in mv coding and as
nearest and near.

Sort by sad in vp8_find_best_ref_mvs() rather than just
pick the best. Allow 0,0 as a best ref option but not a
nearest or near unless there are no alternatives.

Encode/Decode verified on at least some clips.

Some commented out experimental and stats code still in place.

Gain over existing code averages about 1% on derf (alll metrics)
with improvement on all clips. Other test results pending.

The entropy coding of the mode (nearest/near etc) still
depends upon and requires the old "findnear" code so
this needs looking at and may provide room for further gains.

Change-Id: I871d7cba1d1c379c4bad9bcccce1fb19c46b8247
2012-08-24 18:08:21 +01:00
John Koleszar
5055a1610d remove rotation experiment
This is being reimplemented more generically in terms of affine
transforms.

Change-Id: I9300bfde5f8b93c708c64f59427087720f8ed782
2012-08-21 10:09:56 -07:00
Christian Duvivier
a1168155a7 Fix warnings.
Change-Id: I4b911e4173da30c164bde7ea50bc80a70fbbb745
2012-08-14 16:23:32 -07:00
Mike Frysinger
b4ab43f12c do not error out on generic-gnu + --enable-shared
If you build with --enabled-shared on a Linux arch not explicitly
listed, the configure script will abort because it didn't detect
"linux" in the fallback generic-gnu tuple.

Since this is the fallback tuple and people are passing
--enable-shared, assume the user knows what they're in for.

Change-Id: Ia35b657e7247c8855e3a94fca424c9884d4241e3
2012-08-14 11:39:20 -07:00
Daniel Kang
2f963917a6 Fix typo, which adds skip testing for 16x16
Also add warnings for undefined macros in the C pre-processor

Change-Id: I1ec30e57c5a49fb72151a4cf140d7eeb0fb1d779
2012-08-13 16:28:11 -07:00
Deb Mukherjee
7d0656537b Merging in the sixteenth subpel uv experiment
Merges this experiment in to make it easier to run tests on
filter precision, vectorized implementation etc.

Also removes an experimental filter.

Change-Id: I1e8706bb6d4fc469815123939e9c6e0b5ae945cd
2012-08-08 16:57:43 -07:00
Yaowu Xu
8b2f57d0b8 a new way of determining reference motion vector
Using surrounding reconstructed pixels from left and above to select
best matching mv to use as reference motion vector for mv encoding.

Test results:
       AVGPSNR  GLBPSNR VPXSSIM
Derf:  1.107%   1.062%  0.992%
Std-hd:1.209%   1.176%  1.029%

Change-Id: I8f10e09ee6538c05df2fb9f069abcaf1edb3fca6
2012-08-07 11:25:57 -07:00
Christian Duvivier
82edabce75 Add x86_64-darwin11-gcc target.
This allows building on MountainLion as the 10.6 SDK has been
removed from the latest Xcode version (4.4 4F250). Also fix
all warnings for that build.

Change-Id: Ib70bca4a25295f13595f0d10ea9f0229631de5a4
2012-08-06 15:26:58 -07:00
Deb Mukherjee
2af5473a90 Merging in high_precision_mv experiment
Merged in the high_precision_mv experiment to make it easier
to work on new mv encoding strategies. Also removed
coef_update_probs3().

Change-Id: I82d3b0bb642419fe05dba82528bc9ba010e90924
2012-08-03 13:38:49 -07:00
Jingning Han
fcbff9ee04 Replacing the 8x8 DCT with 8x8 ADST/DCT for I8x8
Fixed the code review comments.

Under the htrans8x8 experiment the 8X8 DCT in the
I8X8 mode is replaced with a combination of 8X8 ADST and
DCT.

Overall coding gains with the htrans8x8 experiment are:
derf:   0.486
std-hd: 1.040
hd:     1.063
yt:     0.506

Note that part of the gain comes from bigger transforms
(8x8 instead of 4x4) and part comes from replacing the DCT
wth the ADST.

Change-Id: I92ca6bbfce11b4165d612b81d9adfad4d010c775
2012-08-03 12:02:07 -07:00
Daniel Kang
e6de9c2e5d Merge "16x16 DCT blocks." into experimental 2012-08-03 10:22:04 -07:00
Deb Mukherjee
4aabfaa5d0 Merge "Merging and bug-fix in enhanced_interp experiment" into experimental 2012-08-03 10:18:25 -07:00