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In non-rd pickmode: Allow speed 7 to also use larger block size in
model_rd. Small change in behavior for speed 7.

Change-Id: I8c5523e424308e8f0bc71b3f6324dec42a464cc8

Change-Id: I53b3fa8bfc0a0717eb1b730c29f2b70060b1b1b7

BUG=webm:1367

Change-Id: I3000b6d9f93ec49ca86d08151348d33d86bf0034

BUG=webm:1366

Change-Id: I204ef8496884ba7c4debe64f23f50d298b4090c3

In non-rd pickmode: small change in behavior for speed 6 and 7.
Remove condition on HIGHBITDEPTH flag.

Change-Id: I360a13fcc313d72612fe9b918162ef4bb278cdea

average improvement ~4x-5x

Change-Id: I17c41383250282b39f5ecae0197ef1df7de20801

Also avoid noise_estimation and source_sad if use_highbitdepth is set.

Change-Id: I5fea396b8f8380ea377045d99ba22a52b92daa46

Change-Id: Ia1b3c118adec5eccbd2900c8e4b9ea6b1e3e9b7c

Skip denoising for blocks < 16x16, and for block = 16x16
skip denoising for low noise levels and width > 480 for now.
Allow for some speed-up in denoiser.

Change-Id: Ib46cefe4741962d145fa08775defea3a9c928567

BUG=webm:1361

Change-Id: Ib840bf3b39f7b3c8c017d3488a83434e9a0f45f5

Visual quality improvement is observed for noisy clips. Little effects
on speed tests on Nexus 6.

Change-Id: Ib38e04002220708c34102de7b5c36e9940775d89

(yunqingwang)
1. Rebased the patch. Incorporated recent first pass changes.
2. Turned on the first pass unit test.

Change-Id: Ia2f7ba8152d0b6dd6bf8efb9dfaf505ba7d8edee

Increase the qp-delta, mainly for low resolutions,
excluding case of very low bitrates.

avgPSNR/SSSIM gain of ~3-5% on rtc_derf set.
Small change on rtc set.

Change-Id: Ice03d04bd0340404d1957666ef154fd64fed0606

Affecting only speed 8.
Speed tests on Nexus 6 show 4% faster for QVGA and 2.4% faster for VGA.
Little/negligible quality regression observed on both rtc and rtc_derf sets.

Change-Id: I337f301a2db49a568d18ba7623160f7678399ae1

(Yunqing)
This patch added the missing initialization in temporal filter.
Borg test BDRate results:
PSNR: -0.019%(lowres); -0.013%(hdres);
SSIM: -0.001%(lowres); -0.010%(hdres).
Other q values gave comparable but no better results.

Change-Id: I7ad0c18b39e6f558342688e2fe1e12fdb133ce9b

average improvement ~4x-5x

Change-Id: If8683d636fe2606d4ca1038e28185bca53bbe244

Removed MVC so that mv_err_cost() is always called while calculating
the mv cost.

Change-Id: I28123e05fbfc2352128e266c985d2ab093940071

Affect only speed 8. Small/Negligible regression on rtc set.

Change-Id: I67a6b6b4008a22ed798bd980336d95bb799f64b4

This currently runs 1000 * 1000 = one *million* times which is quite
unnecessary. It's one of the slowest items in Jenkins and takes over an
hour for each of the larger transforms.

Change-Id: I01653b5e610683e1a2d778ec60cf5065562ab8db

BUG=webm:1359

Change-Id: Ie0c66efa2e19d1ec9c744d14e3fa8f1e6214cdd6

Due to recent change to speed >=7 from commit:219cdab6.

Change-Id: I366e7750ec91119881050ff6c05849504c7959e8

Only for speed >= 7, and affects skipping of intra modes.
Threshold is set low for now, needs to be tuned.
Small/no difference in metrics on rtc clips.

Change-Id: If9bdbd43f08d1f80407cdd2e9e5e96780dcd2424

Added the multi-threaded first pass encoder unit test in VP9. The test is
to check if the new multi-threaded first pass encoder(namely, new-mt = 1)
still generates matching stats. In the unit test, the new-mt mode will be
turned on once the multi-threaded first pass implementation is checked in.

Change-Id: Ic21bb1a55c454f024cfd2b397a4c148cfe638218