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This feature is used for the CBR RTC encoding mode
at speed >= 6. This change will exclude it for VBR mode.

For speed 6 live encoding (VBR):
avgPSNR/SSIM metrics on ytlive set up by ~1% (few clips up by 2/3%).
No change in speed.

Change-Id: I1a0dd94c334f7df309ab5a48d477d7e25355b798

This condition is handled before this code is reached. The ssse3 version
of the function has always crashed when attempting to handle the
skip_block condition.

Add assert() and comments regarding the usage of skip_block.

Removing the parameter is a fairly involved process so leave it be for
the moment.

Change-Id: Ib299f6fc6589d7ee102262cc74a7aeb60110bc5a

BUG=webm:1404

Change-Id: I88aceb07f4db4870a06eee21d87296974ce3221a

135 -> 34

fixes unused function warnings for highbd_idct32_34_4x32_quarter_[12]

Change-Id: I4f50ff6ea514200af93dd59ff94c7f9717409682

Despite abs_coeff being a positive value, all the other implementations
treat it as signed which simplifies restoring the sign.

HBD builds cast qcoeff to avoid a visual studio warning. Match
vp9_quantize.c style of casting the entire expression.

Change-Id: I62b539b8df05364df3d7644311e325288da7c5b5

fixes mismatch between prototypes and definitions

Change-Id: Ib5e7dfcce244dbb8401815be2cdd183d96792652

* changes:
  Add vpx_highbd_idct32x32_{34, 135, 1024}_add_{sse2, sse4_1}
  Update highbd idct x86 optimizations.
  Update 32x32 idct sse2 and ssse3 optimizations.

Having a very low "lag_in_frames" value could cause the encoder to create
incorrect / corrupt ARF groups including displayed frames that update the
ARF buffer and false overlay frames that are coded at low rate but are not
actually overlays of a real ARF frame.

This is linked to a reported unit test "slow down" where the chosen parameters
(lag of 3 frames) gave rise to such "broken" ARF group(s).

See also BUG=webm:1454

Change-Id: If52d0236243ed5552537d1ea9ed3fed8c867232c

Having a very small value for "lag_in_frames" can result in
corrupt arf groups including displayed frames that update
the arf buffer and fake overlay frames that are not in fact
overlays of real arfs but are nevertheless starved of bits.

Leaving lag_in_frames at the default of 25 for these 5 frame two
pass VBR tests should now give rise to a valid ARF coding pattern
as follows:-  K(ey), A(rf), N(ormal), N, N, O(verlay).

This change is part of a response to BUG=webm:1454 where broken
arf groups interacted badly with a change that corrects for large rate
misses. However, it may still in some cases increase encode time by
virtue of the fact that the unit test now codes a correct coding pattern
with "hidden" ARF frames.

Change-Id: Ifd0246a4c1d0be247247c754024d7a4ed5f66a6b

Some clips in nightly unit test exhibiting significant encoder slowdown which
appears to bisect to Change-Id: I692311a709ccdb6003e705103de9d05b59bf840a.

The above change allowed for emergency iterations of the recode loop and
adjustment of the Q range if there is a large rate miss.

This patch disables the above adaptation for cases of cpu_speed >= 3 or more
specifically where cpi->sf.recode_loop >= ALLOW_RECODE_KFARFGF.

For speeds >= 3 the code does not currently run a dummy bit pack operation
inside the recode loop. Without this dummy pack operation there is no up to
date estimate of the current frame's size to use as a basis for assessing the
requirement for a recode. In practice it was using the previous frames size (or 0
for the first frame) which could cause odd behavior.

If we require the emergency rate correction added in  Change-Id: I6923.. for
the higher speed settings it will be necessary to enable the dummy pack
which will in turn hurt encode speed.

BUG=webm:1454

Change-Id: I4fb3c6062ca9508325a6f31582f8e80f1a9b126f

Change legacy vp8/9_write_yuv_frame to vpx_write_yuv_files.
Delete some flags that can be enabled during build.

To enable writing denoised YUV, use the following command line:
CFLAGS='-DOUTPUT_YUV_DENOISED' ./configure
--enable-vp9-temporal-denoising

For skinmap, use CFLAGS='-DOUTPUT_YUV_SKINMAP'

Change-Id: I236974ac8b3cf279d20c4dc7f6162d8b480b6528

* changes:
  quantize: silence unsigned overflow warning
  quantize test: quiet overflow warning

Change-Id: I9d201fa3a4b00ebd147b57ed519fab8d59b0a802

The result of the xor operation is unsigned. If coeff was negative,
this results in an unsigned value - INT_MIN.

Change-Id: I1f1edeaa6de1f4c68b848e8a82a666d390b749f0

Promote the result of RandRange to signed

Change-Id: I89313cace3bcbe9af96946bef00b6857fc48b128

BUG=webm:1412

Change-Id: I08b562b60fa85fbc2fec1c15c323a3444b44618f

BUG=webm:1412

Change-Id: Ia275940af7d7d8637e9a851a9e39d655bfbe4069

Change-Id: I51106e90344035452621c49a6e1be7d5276b6c70

when CONFIG_REALTIME_ONLY is enabled.

BUG=webm:1446

Change-Id: Id547783ec75383966c40ab5cf6abb4a0f7984f52

* changes:
  quantize test: check skip_block
  quantize test: use negative input

Actual frame size and bitrate is all 0 when using SVC sample encoder
with sl = 1 because the stats are set in parse_superframe_index which
will not caculate properly when sl = 1 since there is no superframe.

Use pkt->data.frame.sz instead when sl = 1.

Change-Id: I93f5e98a4c779e32b007e1564ba5396af9e34ad6

Use input with a narrow range because the filter only applies when the
frames are similar.

Run CompareReferenceRandom more times. Especially before narrowing the
input range, the filter frequently did not apply.

Change-Id: Ie249bedf6d0d33dfa5884611cb1835788e418b38

this test fails with the configuration similar to the assembly prior to:
d52cb597 quantize: copy ssse3 optimizations to intrinsics

BUG=webm:1458

Change-Id: Idc5c0b84c0598259fc49609a9f0756de531d3baf

when CONFIG_REALTIME_ONLY is enabled.

BUG=webm:1446

Change-Id: I4b1b8e9a456830ba1b1bd3a8882e038d37ee7903

BUG=webm:1457

Change-Id: Ie8fae018ad8417724fde087055b90228850d631d

Change the denoiser frame buffer management for SVC to more generally
handle the layer patterns in SVC (where last is not always refreshed).

This change is only for SVC with denoising and is bitexact.

Change-Id: Ic2b146a924cdf6e7114609158afa3d4880fe3fae