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BUG=webm:1027

Change-Id: Ibe58781905b372b9fe29dace39b4bfdd33fd0f83

For 1 pass vbr.

Change-Id: I6c1c1cca3944150140e896e175b07ed518641b9b

Fixed cosmetic issues noted in Change 349854.

Change-Id: I1d94070e4066fa920173013c5a36a30dd1cb357d

* changes:
  fdct8x8_test: fix unsigned overflow
  fdct4x4_test: fix unsigned overflow

To make coefficient checking consistent with the VP9 spec sections
8.7.1.6 and 8.7.1.1.

Change-Id: I92e38e89a41d1e482317bb478c48ffa608d2d6ee

vp9_prob_diff_update_savings_search_model

updated in:
19e0b406 Refactor probability savings search.

Change-Id: I13ae3106961f0271f51df17ee1c70c99f2d75f8f

the difference between src and dst will be signed, the error will be
unsigned.
quiets -fsanitize=integer:
unsigned integer overflow: 4294967295 * 4294967295

Change-Id: I580813093ee46284fde7954520dfcb1188f79268

the difference between src and dst will be signed, the error will be
unsigned.
quiets -fsanitize=integer:
unsigned integer overflow: 4294967295 * 4294967295

Change-Id: I502fd707823c4faaa7f587c9cc0312f057e04904

On scene-cut detected frames (i.e., high_source_sad = 1), use
nonrd_pick_partition (over choose_part + select_part), as
the nonrd_pick partitioning is generally better.

Small positive increase in metrics on ytlive set (~0.5 - 1%).
Negligle overall speed decrease, as its only used on scene-cut frames.

Only affects 1 pass vbr mode, speed = 5.

Change-Id: I07c89cbdc75f5bb16eb8e0e2773ead0980d2de5c

Only affects 1 pass vbr mode.

Change-Id: Ifd7ff3771eabe322a371b35b159cace6baa3b070

This reverts commit be12fefa
and commit 057c1c40.

Also, the mismatch between the avx version and the
c version has been fixed.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1168

For a rt encode using 1080p@60fps material, up to 11% performance
improvement overall was seen.

Change-Id: Icd1f216209ebc6fc0b8da885f32f356fa4355ed0

The eob of a block is not perperly set when skip_recode is true,
thus triggering assert(eob <= default_eob) to fail.

Change-Id: Ifecbe33dce2dc4903e0a80bd384dc09bf0dd8a44

* changes:
  configure: Add -mstackrealign flags to CFLAGS on OS/2
  vpx: Add OS/2-specific threading codes

Code cleaup, use existing rolling_actual/target metrics instead,
set threshold to get same/similar effect.

Little/no change in metrics on ytlive set.

Change-Id: I74f3c3d0a143a9cf20dc9c3dee54c0f7e6a97a51

Add a max condition and lower the min value.

No change in behavior (metrics for yt live set) for the
default min/max_gf_interval=4/16 settings.
Small positive change when min/max_gf_interval=7/16
(for 60fps clips on ytlive set).

Change-Id: I1c1d72425c86c69419ea43fb9730130e81062f91

add an upper bound to the framerate denominator above which 30fps will
be reported; fixes warning in corrupt / fuzzed files

Change-Id: I46a6a6f34ab756535cd009fe12273d83dcc1e9f1

* changes:
  vpx_dsp,add_noise: remove mmx implementation
  vpx_dsp: remove mmx variance implementations

Provides more comprehensive coverage for --enable-coefficient-checking.
The intent is to make the --enable-coefficient-checking option
consistent with the VP9 spec.

Change-Id: I12d0120756d17572ca2b2d7e6a2ab9d8071d8d58

Error messages:
 ..\vp9\common\vp9_loopfilter.c(1312): warning C4244: 'function' :
conversion from 'uint64_t' to 'unsigned int', possible loss of data
[.build-x86_64-win64-vs10\vpx.vcxproj]

..\vp9\common\vp9_loopfilter.c(1313): warning C4244: 'function' :
conversion from 'uint64_t' to 'unsigned int', possible loss of data
[.build-x86_64-win64-vs10\vpx.vcxproj]

..\vp9\common\vp9_loopfilter.c(1312): error C2220: warning treated as
error - no 'object' file generated
[.build-x86_64-win64-vs10\vpx.vcxproj]

Change-Id: Ia69260611997cd2ba41c7184a85ecead740a7c07

Increase in the damping used in adjusting the active Q range.
This does hurt rate accuracy a little in a few extreme cases
especially if the clip is very short*, but helps metrics.

* Note that the adjustment is applied at the GF/ARF group level based
on what happened in the last group.  Hence for very short clips where
the length of a single group may be a significant % of the clip length
there is still scope for some drift that cannot be accommodated.

In practice most data points in our test sets are now much closer to target
than was previously the case with default settings and in some cases are
better even than they were with the command line undershoot and overshoot
parameter was set very low (e.g. 2%). For example in bridge_close at high rates
the old mechanism was unable to adapt enough to prevent extreme overshoot.

Change-Id: I634f8f0e015b5ee64a9f0ccaa2bcfdbc1d360489

Change to the calculation of the error divisor used in
get_twopass_worst_quality(). This follows on from other
changes to the rate control that impact the output of this
function.

Change-Id: I414fa9aa1e6a68a64dccea17c3712f44b8a0c10c