Remove unused vp8 quantize functions

Exact fast quantize and inexact regular quantize are unused.

Change-Id: I5a81f5059c896c919f70038af7de04d63823d26d
build/make/iosbuild.sh: Be more explicit about armv7.

xcode defines __ARM_ARCH_7A__ for armv7, not __ARM_ARCH_7__.

Change-Id: I0184e253a856e74c133d987ec6f6990f0923bb29
Removing legacy compatibility layer.

Change-Id: I6fdcea0e0faf42386dd2b8f972a3b3fb2c21b2c7
Enable adaptive motion search for ARF coding

This commit turns on adaptive motion search for ARF coding, in
addition to other normal inter frame coding. It improves the
average compression efficiency:

stdhd 0.1%
derf  0.04%

For the test sequences, the speed 3 runtime is reduced:

pedestrian 1080p 2000 kbps, 149932 ms -> 144580 ms, (3.3% speed-up)
bus CIF 1000 kbps, 8050 ms -> 7895 ms, (1.9%)
highway CIF 100 bkps, 45033 ms -> 44078 ms, (2.2%)

Change-Id: I5228565b609f99e8ae04f6140a2bf2b64a831d21
Fix a visual studio warning

Change-Id: I7f935e61c8c0ade7893a5212701f07bb346d78cb
[spatial svc]Add layer bitrates options and clean up parsing options from string

Change-Id: I6e8d3f08c8a8ce3555a498feba471ba9fec411c6
No longer use use_lastframe_partitioning speed feature

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
Cleaning up and speeding up vp9_idct32x32_1024_add_sse2().

Change-Id: If91017b792572c9db6e257011ca307bef8428486
vp9_pickmode: make vp9_pick_inter_mode() void

the previous return value was constant and unused.

Change-Id: Ic3be55edb4a884448c7bb07977a80dfb58b7b940
vp9_pickmode: move PRED_BUFFER definition to .c

Change-Id: I3737772fe53f9885c82e2ac4c1af478ab951c16c
vp9_pick_inter_mode: cosmetics: fix indent

+ delete a dead comment

Change-Id: Ibdb07f6dbdb30fc7888f6115ddc326fcec1157a7
vp9_pick_inter_mode: cosmetics: add const

Change-Id: I2450b4856e48dbc4d5b938b2edcea0704f756c8e
vp9_pick_inter_mode: cosmetics: localize var. defs

Change-Id: Ifbfc142291697a1847ef85ced0b0eb4d6dab161e
vp9_pick_inter_mode: normalize some types

Change-Id: I4c74dcab6358817f03d3bc4d526006d241f0c10e
Replacing vp9_get_mb_ss_sse2 asm implementation with intrinsics.

Change-Id: Ib4f5dd733eb2939b108070a01e83da5d9990bac0
libyuv: cherry-pick MSVC arm build fix

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

Change-Id: I758b33a21f46e46af6e58d83b7c045262ac9c7d9
Merge "Replacing vp9_get_mb_ss_sse2 asm implementation with intrinsics."
Merge "Enable adaptive motion search for ARF coding"
Fixing Mac OS build.

Change-Id: Ifae8906185a868a07685eb7a7da2484af95e70a7
vp8 encoder: remove vp8_yv12_copy_partial_frame_neon

Use generic C implementation instead of neon-specific code

Change-Id: Ib322b4ece9cdbd4de76a9eed3d2e9fd1d8542406