Integrate intra mode mask speed feature with the mode_skip_mask
scheme. Move it outside the mode search loop in the
vp9_rd_pick_inter_mode_sb function.

Change-Id: I7738fea749bfdc08ad05d7f2524feb8ff67568d9

This speed feature is used in real-time setting only. Remove the
related condition check in the rate-distortion optimization search
loop.

Change-Id: Iaacc1e268214634e6f95c5048c28a60cec6c42fc

Unify this speed feature in the ref_frame_skip_mask scheme.

Change-Id: I7ea5646da02d3ea643680c22d50dabd448d55a27

Change-Id: I0da29c858c6c1eb5ef07cee8f599329f5a002da9

Refactor overlay frame speed-up related function. Make it unified
with the ref_frame_skip_mask system and Move it out of the mode
search loop.

Change-Id: I0dde9baf44354f6ba00b4679cba02fa6a30c7316

This commit refactor the rate-distortion optimization search for
regular block sizes to remove the speed feature dependency on mode
search order.

Change-Id: Ied033ee484c2957e17baa7b6450b720fe7dd0e7d

This commit fixes a bug related to skipping intra mode checking, by
using a separate variable to store the best prediction error from
inter mode. It avoids unintentionally overwriting intra mode
rate-distortion cost, and hence affecting other speed features.

Change-Id: I99e12993339c84c8b4f597996b372012e5858fae

Assigning selected reference frame pointer is done in the
encode_superblock function. No need to do this at the end of
rate-distortion optimization search.

Change-Id: I33fcede0fd304b4a4c4deef2d126d79546a9c070

This commit refactors the vp9_rd_pick_inter_mode_sb function to
remove the intra mode early termination dependency on the mode
search order.

Change-Id: If6ac49aa7c530c7b9a5bd31b0ab84db83e192bec

This commit allows the encoder to find current best prediction mode
state using best_mbmode, instead of fetching from the static mode
search table via best_mode_index.

Change-Id: Ibefeab83aed33a49c2be03e83f09153856ca4271

Add qp/bitrate condition, update some settings.

Change-Id: I1af0f102823a886393be063ad9d17d7564753cc7

These functions moved from 'neon_asm' to 'neon' in
9293d267

Change-Id: I9cb5626c3eec96876a73fb18f2bfc982a5858edb

* changes:
  vp9_pick_inter_mode: normalize some types
  vp9_pick_inter_mode: cosmetics: localize var. defs
  vp9_pick_inter_mode: cosmetics: add const
  vp9_pick_inter_mode: cosmetics: fix indent
  vp9_pickmode: move PRED_BUFFER definition to .c
  vp9_pickmode: make vp9_pick_inter_mode() void

Compile fails when CONFIG_INTERNAL_STATS
flag is set.

Change-Id: Iba7701c058169ca3fc0b9008619ac55a1fe1a8b6

Use generic C implementation instead of neon-specific code

Change-Id: Ib322b4ece9cdbd4de76a9eed3d2e9fd1d8542406

Change-Id: Ifae8906185a868a07685eb7a7da2484af95e70a7

Issue 24479004: Fix building with MSVC for arm
https://webrtc-codereview.appspot.com/24479004/

Change-Id: I758b33a21f46e46af6e58d83b7c045262ac9c7d9

Change-Id: Ib4f5dd733eb2939b108070a01e83da5d9990bac0

Change-Id: I4c74dcab6358817f03d3bc4d526006d241f0c10e

Change-Id: Ifbfc142291697a1847ef85ced0b0eb4d6dab161e

Change-Id: I2450b4856e48dbc4d5b938b2edcea0704f756c8e

+ delete a dead comment

Change-Id: Ibdb07f6dbdb30fc7888f6115ddc326fcec1157a7

Change-Id: I3737772fe53f9885c82e2ac4c1af478ab951c16c

the previous return value was constant and unused.

Change-Id: Ic3be55edb4a884448c7bb07977a80dfb58b7b940

The speedup in rd_pick_partition() function makes it possible
to drop use_lastframe_partitioning feature. By doing that, we
achieve good PSNR gain with small speed loss. Also, this makes
encoding loop less complicated. The code cleanup patch will
follow.

Borg tests showed:
1. At speed 2,
   stdhd set: 0.201% PSNR gain, 0.133% SSIM gain;
   derf set:  0.262% PSNR gain, 0.276% SSIM gain.
2. At speed 3,
   stdhd set: 0.139% PSNR gain, 0.109% SSIM gain;
   derf set:  0.447% PSNR gain, 0.442% SSIM gain.

The average speed loss over selected test clips is within 1%
with the worst case of 4%.

Change-Id: Icfd2ded7869372b585a6972855d933b3d0280d90

Change-Id: I6e8d3f08c8a8ce3555a498feba471ba9fec411c6

* changes:
  vp9: correct context buffer resize check
  vp9: fail decode if block/frame refs are corrupt

The rate costs calculated for inter modes are not precise in some
cases, which causes NEWMV is chosen instead of NEARESTMV, NEARMV,
and ZEROMV. This patch added checks for these cases, and corrected
the mode decisions.

Borg tests at speed 3 showed:
1. stdhd set: 0.102% PSNR gain and 0.088% SSIM gain.
2. derf set:  0.147% PSNR gain and 0.132% SSIM gain.
No speed change.

Change-Id: I35d17684b89ad4734fb610942d707899146426db