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This commit reworks the transform and quantization unit. It enables
the use of adaptive quantization for intra modes. This further
improves the compression performance:
lowres 0.36%
midres 0.79%
hdres  0.73%

The key frame coding performance is improved:
lowres 1.7%
midres 1.9%
hdres  3.3%

The overall coding gains are:
lowres 1.1%
midres 1.8%
hdres  2.3%

Change-Id: Iaec1a3a4c1d5eac883ab526ed076d957060479dd

Change-Id: I9dc156214f3b3ded33ab30d558124b3151548161

Skip filter intra mode search when regular intra modes have large
rd cost.

Encoding speed improvement:  8%.

Compression performance drop: 0.02%  / 0.09%  / 0.03% on
                              lowres / midres / hdres

Change-Id: I94d3e48781bff6ae6895a54f271dd65c959bb976

Move filter intra modes search to the end, after regular
mode search.

On average no performance changes.

Change-Id: I9293c8fdf706ebf831fbd61c6bb81959790f4848

It was broken by commit 8ee640f9.

Change-Id: I26b9eba810c74849b0805e64da2d269ab0685cb9

This commit makes the dual filter experiment work with non-420
settings. It fixes unit test failure in EndToEndTestLarge.

Change-Id: I04f7afdee78f91389d9ff72947efa152098af930

Change-Id: I9860376c98aa3b25f5bf86ed13d4a7631fa6b153

Speed up the trellis optimization unit by 10%.

Change-Id: If055f6c0589a405c008d2900bb8fbc11b1246f66

Revisit the compression performance and complexity trade-off after
making the SIMD version of trellis optimizations. Before that,
reduce the transform-quantization function calls temporarily. This
would cause about 0.3% performance drop for lowres set.

Change-Id: I16917a6bd5c44ec6cd8cd0b59f3c336c4fd96dd2

Change-Id: I6413b7622a3c8524ec0409e087cf7c92f79e4f2d

Change-Id: Ie98fd60426b18980ec85572f3cfc9ce0b97a5361

This commit combines uniform quantizer with trellis based coefficient
level optimization. It improves the codebase compression performance:

lowres 0.8%
midres 1.0%
hdres  1.6%

Note that the current trellis optimization unit is using C code. This
will make the cost of the overall quantization process slower. A number
of optimizations will come up next.

Change-Id: Id441dd238e4844409d0f08f82604be777f3f5282

Change-Id: I15d54a3ae48b2b33082668116792c6595bdb3ddb

This experiment implements non-uniform quantization where
the width of the bins increases gradually to more closely
match a laplacian distribution of the coeficcients.

Performance Gain:
derflr: 0.15%
hevcmr: 0.675%

Change-Id: I25234244e3bcd94b87c1f77cf682190b61c8ef94

This reverts commit f19700fe.

This crashes in SSE2/SumSquares2DTest.RandomValues/0 under x86 due to
alignment issues

Change-Id: I135d83ba6a7894c09d7c7a139b7eaf876416b40c

This reverts commit efda2831.

This commit causes segmentation fault at SSE2/SumSquares2DTest.RandomValues/0

Change-Id: I171937e4daf6f15323e8206418773deb03bd8c53

Sarah Parker authored Jun 09, 2016 and James Zern committed Jun 09, 2016

This test is failing when no experiments are turned on. PSNR is
31.96 when the threshold is 32.

broken since:
0d6980d7 Remove swap buffer speed feature

Change-Id: I3c29815b40d5282c37f52f4345b56992f8558b2e

Change-Id: I4b5e1251dc215073384e168a6f845ae059d6c4f2

Change-Id: I7da9e6a85648aa69e5e20d825b717d51e3c6809c

Bring commits 575e81f7 and 3d6b8a66 to VP10. These changes predate
the creation of the active map cyclic refresh test.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1224

Change-Id: I3559b6933ffa5649926a4b214e45ed0fae523a25