This commit replaces the best_ref_index table fetch with the use
of best_mbmode in vp9_rd_pick_inter_mode_sub8x8.

Change-Id: I882ee9ee6a8c0e61befcca1f4dba6d2ea8de8f13

Change-Id: I9b6a74bdf003b39235f14f8b5b7f3b861f6bf131

When a reference frame type is not in the frame buffer, the mode
search threshold will be set to INT_MAX, so as to effectively
turn off the mode entries in the rate-distortion optimization loop
that involves this reference frame type. This operation is now
integrated in the ref_frame_skip_mask scheme. This commit hence
removes the redundant mode search threshold setting.

Change-Id: Ib18f45da611afda2af275201efd367df7f5101ab

This commit unifies the reference frame control in the rate-
distortion optimization search loop of sub8x8 block size to remove
the control dependency on mode search order.

Change-Id: I3a174099f71a7cc176ede9fd60e2374243ae9232

Change-Id: Ie45687405dcaa34ba465dce2aa14f76017d3a794

The variable best_inter_rd is effectively not in use in the rate-
distortion mode search loops of both regular block sizes and sub8x8
block sizes.

Change-Id: I178f909f8c9629772e13adc6257908653b2adf31

The speed feature that skips compound inter prediction modes was
subsumed by other speed features and effectively was not in use.
This commit removes it.

Change-Id: I22b0c71a8ddd15d93b25d86fa63a1dce2ba6a1a9

Change-Id: Ifaf6738f26e86ded6eb6ea1465bad7a229612999

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