Граф коммитов

38 Коммитов

Автор SHA1 Сообщение Дата
Dmitry Kovalev 1aedfc992a Using MV* instead of int_mv* as argument of vp9_clamp_mv_min_max.
Change-Id: I3c45916a9059f11b41e9d798e34ffee052969a44
2013-08-12 13:56:04 -07:00
Dmitry Kovalev 6a8ec3eac2 General code cleanup.
Removing redundant parenthesis and curly braces. Combining declarations
with initializations. Adding useful intermediate variables instead of
recalculating expressions every time.

Change-Id: I00106f404afd60bfc189905b0fded881684f941a
2013-08-08 21:12:34 -07:00
Deb Mukherjee 1ba91a84ad Adds a new subpel motion function
Adds a new subpel motion estimation function that uses a 2-level
tree-structured decision tree to eliminate redundant computations.
It searches fewer points than iterative search (which can search
the same point multiple times) but has the same quality roughly.

This is made the default setting at speeds 0 and 1, while at
speed 2 and above only a 1-level search is used.

Also includes various cleanups for consistency and redundancy removal.

Results:
derf: +0.012% psnr
stdhd: +0.09% psnr
Speedup of about 2-3%

Change-Id: Iedde4866f5475586dea0f0ba4cb7428fba24eee9
2013-08-08 11:41:49 -07:00
Deb Mukherjee 71b43b0ff0 Clean ups of the subpel search functions
Removes some unused code and speed features, and organizes the
interfaces for fractional mv step functions for use in new speed
features to come.

In the process a new speed feature - number of iterations per
step during the subpel search - is exposed.

No change when this parameter is set as the original value of 3.

Results:
subpel_iters_per_step = 3: baseline
subpel_iters_per_step = 2: psnr -0.067%, 1% speedup
subpel_iters_per_step = 1: psnr -0.331%, 3-4% speedup

Change-Id: I2eba8a21f6461be8caf56af04a5337257a5693a8
2013-08-06 17:23:50 -07:00
Deb Mukherjee 15b5a6a2c7 Flexible support for various pattern searches
Adds a few pattern searches to achieve various tradeoffs
between motion estimation complexity and performance.
The search framework is unified across these searches so that a
common pattern search function is used for all. Besides it will
be easier to experiment with various patterns or combinations
thereof at different scales in the future.

The new pattern search is multi-scale and is capable of using
different patterns at different scales.

The new hex search uses 8 points at the smallest scale
and 6 points at other scales.
Two other pattern searches - big-diamond and square are
also added. Big diamond uses 4 points at the smallest scale and
8 points in diamond shape at the larger scales.
Square is very similar conceptually to the default n-step search
but is somewhat faster since it keeps only one survivor across
all scales.

Psnr/speed-up results on derf300:

hex: -1.6% psnr%, 6-8% speed-up
big-diamond: -0.96% psnr, 4-5% speedup
square: -0.93% psnr, 4-5% speedup

Change-Id: I02a7ef5193f762601e0994e2c99399a3535a43d2
2013-08-06 11:56:39 -07:00
Dmitry Kovalev 86053d3ae2 Cleanups around allow_high_precision_mv flag.
Change-Id: Ic07f5f8ffeaedd5b7513b464871f83afc82dcd5c
2013-08-02 11:21:16 -07:00
Dmitry Kovalev b621e2d72e Nice looking motion vector clamping functions.
Removing assign_and_clamp_mv function, making implementation of clamp_mv
and clamp_mv2 more clear and consistent.

Change-Id: Iecd08e1c1bf0379f8314ebe01811f8253f4ade58
2013-08-01 13:40:26 -07:00
Dmitry Kovalev 500ade243a Removing unused "ishp" arguments.
Using different variable names "allow_hp" and "use_hp" instead of "usehp".

Change-Id: I0cd5996ddeb46bd754473b680a993c0aaf8eb879
2013-07-31 11:27:53 -07:00
Deb Mukherjee a1e2d50be9 Diamond search change to accelerate movement
Optional change in diamond search to continue in the best move
direction until that move turns worse.

This is still WIP since the exact way the new method is to be used is
under investigation. One option is to make it an option in diamond
search and use it only when motion is large.

Overall slightly positive on derfraw300 +0.02%, stdhdraw +0.13%,
but works a lot better for high motion sequences (ex. football : +1%).

Change-Id: If88e01a6021daa0cda934680cdc70be1ee04f798
2013-07-22 11:19:15 -07:00
Paul Wilkins 9f3ab83486 Auto adapt step size feature.
Also tweaks to other features and experiments with
what is on and off at different speed settings.

Change-Id: I3e1d0be0d195216bf17c2ac5df67f34ce0b306b2
2013-06-26 19:48:39 +01:00
Paul Wilkins e606cac046 Change meaning of cpi->sf.first_step and rename.
Renamed cpi->sf.first_step to cpi->sf.reduce_first_step_size
and changed its meaning such that it is a delta applied to
reduce the default first step size (>> x) in the motion search
rather than an absolute value.

The default first step size is already changed according to the image
dimensions (smaller for smaller images). cpi->sf.reduce_first_step_size
now applies a further correction from the default.

Change-Id: Ia94e08bc24c67b604831f980909af7e982fcd16d
2013-06-26 17:04:06 +01:00
Ronald S. Bultje c24d922396 Add averaging-SAD functions for 8-point comp-inter motion search.
Makes first 50 frames of bus @ 1500kbps encode from 3min22.7 to 3min18.2,
i.e. 2.3% faster. In addition, use the sub_pixel_avg functions to calc
the variance of the averaging predictor. This is slightly suboptimal
because the function is subpixel-position-aware, but it will (at least
for the SSE2 version) not actually use a bilinear filter for a full-pixel
position, thus leading to approximately the same performance compared to
if we implemented an actual average-aware full-pixel variance function.
That gains another 0.3 seconds (i.e. encode time goes to 3min17.4), thus
leading to a total gain of 2.7%.

Change-Id: I3f059d2b04243921868cfed2568d4fa65d7b5acd
2013-06-25 12:57:28 -07:00
Ronald S. Bultje 4dc70fa7f9 Don't re-allocate comp_pred buffers for each call to comp motion search.
Instead, just allocate a few bytes on the stack, this is 4k, which isn't
all that much.

Change-Id: I82af6ee89e6ed01faaa23ff891ee7ced76df8c16
2013-06-24 14:05:13 -07:00
Dmitry Kovalev 87e1fa7627 Renaming 'nmv' to 'mv' for several functions.
Change-Id: I183a38997a9d01e4a1b869e92509f6915216fa09
2013-06-18 18:28:10 -07:00
Paul Wilkins 0b713f8c18 Merge CONFIG_COMP_INTER_JOINT_SEARCH.
Merge this experiment so that it is under a speed feature
flag not a configuration flag.

Change-Id: I536f7f125a4ff5149bb3a64f791e835c324535fd
2013-05-22 11:23:31 +01:00
Paul Wilkins 6ff3eb1647 New inter mode context.
This patch creates a new inter mode contest that avoids
a dependence on the reconstructed motion vectors from
neighboring blocks. This was a change requested by
a hardware vendor to improve decode performance.

As part of this change I have also made some modifications
to stats output code (under a flag) to allow accumulation of
inter mode context flags over multiple clips

Some further changes will be required to accommodate the
deprecation of the split mv mode over the next few days.

Performance as stands is around -0.25% on derf and
std-hd but up on the YT and YT-HD sets. With further tuning
or some adjustment to the context criteria it should be
possible to make this change broadly neutral.

Change-Id: Ia15cb4470969b9e87332a59c546ae0bd40676f6c
2013-05-16 12:09:19 +01:00
Yunqing Wang 9f5811c2da Add joint motion search in comp_inter_inter mode(experiment)
In current code, motion vectors got from single prediction mode are used
in compound prediction mode directly. These motion vectors may not give
accurate prediction since they are searched independently. In this patch,
we took Pascal's suggestion, and did joint motion search in compound
prediction mode to find better motion vectors in this situation.
Test results:
Overall PSNR: 0.570%(derf), 0.918%(stdhd);
SSIM: 0.572%(derf), 1.009%(stdhd);

The encoder is a little slower. This can be improved since some c
code is used in motion search.

Change-Id: Ib30c9240f6c56c9b070867b4ca89412a76d9f3c6
2013-05-10 10:15:43 -07:00
John Koleszar bb41ab4a0c Remove BLOCKD structure
All members can be referenced from their per-plane counterparts, and
removes assumptions about 24 blocks per macroblock.

Change-Id: I7ff2fa72d22c29163eb558981c8193765a8113d9
2013-04-26 10:35:54 -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
John Koleszar a99e1aa8ca Remove predictor pointers from BLOCKD
Access these members from MACROBLOCKD instead.

Change-Id: I2574622e577bb9feede47f6b7ccbb11f3e928ca8
2013-04-25 12:04:07 -07:00
John Koleszar 4bd0f4f646 Remove BLOCK structure
All members can be referenced from their per-plane counterparts, and
removes assumptions about 24 blocks per macroblock.

Change-Id: I593fb0715e74cd84b48facd1c9b18c3ae1185d4b
2013-04-25 11:33:17 -07:00
Dmitry Kovalev 3e01ca6a19 Fixing rounding inside vp9_mv_bit_cost function.
Change-Id: I7209a05919162a8155520bc543658ddb69ba12ce
2013-04-18 15:37:11 -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
Dmitry Kovalev ec299e2092 Encoder code cleanup.
Removing duplicated code from vp9_encodemv.c and reusing ROUND_POWER_OF_TWO
macro definitions.

Change-Id: I9caf0c17f761ada7905cb99a3e2a31f871fef0f9
2013-04-11 11:08:00 -07:00
Paul Wilkins d8ffee4526 Changes to rd error_per_bit calculation.
Specifically changes to retain more precision
especially at low Q through to the point of use.

Change-Id: Ief5f010f2ca4daaabef49520e7edb46c35daf397
2013-03-18 23:07:51 +00:00
Jingning Han 2a5278bdbd Extend diff MV limit from +/-256 to +/-1024
Increase the motion search range by 4x. Change MV_CLASS tree of the
entropy coding to allow two additional mv classes to cover the
extended motion vector limit. The codec determines the effective
motion search range conditioned on the actual frame dimension.

It provides coding gains:

stdhd 0.39%
yt    0.56%
hd    0.47%

Major coding performance gains are packed in several sequences with
intense motion activities, e.g., ped_1080p gains 7% at high bit-rates,
and on average 3%.

TODO: Need to further tune the rate control and motion search units.

Change-Id: Ib842540a6796fbee5a797809433ef6a477c6d78d
2013-03-08 10:04:36 -08:00
Dmitry Kovalev dcbdda8e15 Code cleanup.
Lower case variable names, converting while loops to for loops.

Change-Id: Ic3b973391eef7472a99d18d02fe79cfef5e04e62
2013-02-28 14:40:20 -08:00
Jim Bankoski 714aa9f3c0 this commit converts all sad ptrs to uint32
sse4_1 code used uint16_t for returning sad, but that
won't work for 32x32 or 64x64.   This code fixes the
assembly for those and also reenables sse4_1 on linux

Change-Id: I5ce7288d581db870a148e5f7c5092826f59edd81
2013-02-28 08:46:35 -08:00
Paul Wilkins ef01b956d8 Entropy stats output code.
Fixes to make Entropy stats code work again

Change-Id: I62e380481a4eb4c170076ac6ab36f0c2b203e914
2013-02-20 14:33:19 +00:00
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
Ronald S. Bultje 4455036cfc Merge superblocks (32x32) experiment.
Change-Id: I0df99742029834a85c4933652b0587cf5b6b2587
2013-01-08 12:54:45 -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 5ebe94f9f1 Build fixes to merge vp9-preview into master
Various fixups to resolve issues when building vp9-preview under the more stringent
checks placed on the experimental branch.

Change-Id: I21749de83552e1e75c799003f849e6a0f1a35b07
2012-12-26 11:21:09 -08:00
Ronald S. Bultje 4cca47b538 Use standard integer types for pixel values and coefficients.
For coefficients, use int16_t (instead of short); for pixel values in
16-bit intermediates, use uint16_t (instead of unsigned short); for all
others, use uint8_t (instead of unsigned char).

Change-Id: I3619cd9abf106c3742eccc2e2f5e89a62774f7da
2012-12-18 15:31:19 -08:00
Ronald S. Bultje 4d0ec7aacd Consistently use get_prob(), clip_prob() and newly added clip_pixel().
Add a function clip_pixel() to clip a pixel value to the [0,255] range
of allowed values, and use this where-ever appropriate (e.g. prediction,
reconstruction). Likewise, consistently use the recently added function
clip_prob(), which calculates a binary probability in the [1,255] range.
If possible, try to use get_prob() or its sister get_binary_prob() to
calculate binary probabilities, for consistency.

Since in some places, this means that binary probability calculations
are changed (we use {255,256}*count0/(total) in a range of places,
and all of these are now changed to use 256*count0+(total>>1)/total),
this changes the encoding result, so this patch warrants some extensive
testing.

Change-Id: Ibeeff8d886496839b8e0c0ace9ccc552351f7628
2012-12-12 10:01:19 -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