This speed feature has been deprecated in both yt and rtc coding
modes. This commit removes the related operations.

Change-Id: I079c79c6adafe45581af2ebf8b98faebcface1ce

This commit re-designs the recursive partition search scheme in
rtc speed -5. It first checks if the current block is under cyclic
refresh mode. If so, apply recursive partition search. Otherwise,
perform sub-sampled pixel based partition selection. When the
pre-selection finds the partition size should be 32x32 or above,
use the partition size directly. Otherwise, apply partition search
at nearby levels around the preset partition size.

It is enabled in speed -5. The compression performance of rtc
speed -5 is improved by 9.4%. Speed wise, the run-time goes slower
from 1% to 10%.

nik_720p, 1000 kbps
33220 b/f, 38.977 dB, 10109 ms -> 33200 b/f, 39.119 dB, 10210 ms

vidyo1_720p, 1000 kbps
16536 b/f, 40.495 dB, 10119 ms -> 16536 b/f, 40.827 dB, 11287 ms

Change-Id: I65adba352e3adc03bae50854ddaea1b421653c6c

Cherry-picked from https://gerrit.chromium.org/gerrit/#/c/71914/
(a92f987a6b7819ae5c62a429e126e1c26bdb1b71) on highbitdepth branch.

Change-Id: I6903e4e4cb57d90590725c8a1c64c23da7ae65e8

Fix to the noise level and bitrate threshold settings per resolution.

Change-Id: I25524b7f78afa1aeb76edef7be13c17bc8976508

Currently, the tokens for a tile are stored immediately after its
preceding tile, which causes a dependency. This is unnecessary
since we always allocate enough memory for tokens. Removing
the dependency allows token writing done in parallel. This patch
doesn't change encoding result.

Change-Id: I7365a6e5e2c2833eb14377c37e1503c9d0f26543

This should be set right after decoder really start to decode frame
instead setting at the end.

Even decoder does not have a displayable frame to show and return NULL
to application, this should be set too.

Change-Id: If0313a834bc64e3b0f05a84f4459d444d9eab0d8

When early termination is triggered, properly reset the rate cost
to invalid value to avoid potential ioc issue.

Change-Id: I3444390be2e49a34bb02cf8a74c33d5dbd96d88d

Change-Id: Ib5df91c8580d5dbeb0b3554edc9c2ca906ba4c4d

Change-Id: I4ce19b7cb1c45fed86e81ee785e787630020fb4f

Delete gfboost_qadjust() and move Q based adjustment
into calc_frame_boost(). Also remove clamping. Making
the adjustment here means that it influences not just the
boost level but also the selection of the GF/ARF interval.

This change gives a small average gain in PSNR but
larger gains in SSIM, especially for harder std-hd set (1.5%)

Change-Id: I3aa81b8feccaeff93d915e19fb9cf5cd64c86327

JackyChen authored Oct 12, 2014 and James Zern committed Oct 17, 2014

Change-Id: I5f63f48e11e31ea9951223c5b18f42a2471e4560

Covers all profiles and input formats. The tests check if the
encode succeeds and if the psnr is sane.

Change-Id: I195a5330debf92562846121819b6eaf961e27c01

This commit fixes an ioc issue that will happen when the cumulative
variables are not in effective use. The fix discards these
redundant additions.

Change-Id: Idbac5bfb989c0cedc5f8a323effce938519b2457

This removes an unnecessary restriction that causes
a problem (noticed by AWG) when the forced key frame
interval is set to a very small value, such as 10. In this case
we were being forced to code minimal length GF groups.

Change-Id: I76ef5861a09638ff51f61fea02359554184ada53

We encode a empty invisible frame in front of the base layer frame to
avoid using prev_mi. Since there's a restriction for reference frame
scaling factor, we have to make it smaller and smaller gradually until
its size is 16x16.

Change remerged.

Change-Id: I9efab38bba7da86e056fbe8f663e711c5df38449

This reverts commit 452dc215.

This change has introduced a significant quality regression on content
with forced key frames. (e.g. the YT and yt-hd set). It is most
noticeable in static content where the kf bits dominate. Here, despite
key frames being apparently coded at the same Q, there is a drop in all
metrics of ~20% (e.g clXR and BFa0).

Change-Id: Iba14cc61778c0846fa0a59c33c55a9fc49512cb4

This reverts commit c113457a.

Temporary revert to allow clean revert of another commit.

Change-Id: Ia9b7b755e6c48e1b6e383329f121fef175a24b27

Change-Id: I2902de7051a883fd22e27a655209233733969cfd

Compare the estimated rate and distortion to the thresholds scaled
according to the operating block size and determine if further
split partition search will be run. The compression performance of
speed -5 is changed by -0.074%. The encoding speed is 10% - 15%
faster.

vidyo1 720p
16545 b/f, 40.492 dB, 11475 ms -> 16535 b/f, 40.486 dB, 10100 ms

nik720p
16624 b/f, 36.310 dB, 10071 ms -> 16617 b/f, 36.313 dB, 8346 ms

Change-Id: Ic9197ab5761279ae55d2fb7813b2af0e0db497b8

Reduce the intra_cost_penalty for non-rd mode,
and some updates to VAR_BASED_PARTITION.

Visual tests show some improvement at Speed 6, for RTC clips.

Change-Id: If9090daf7aed14906a32d931a538ab544bbca606