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Change-Id: Idc0a9adb4fb371272d6c8c98737f66c6cf209e37

Change-Id: Ibb573f50c4bf2cfb382b589803f3363db0ac1285

The custom LCG is based on the POSIX recommend constants for a 16-bit
rand(). This implementation uses less computation than typical standard
library procedures which have been extended for 32-bit support, is
guaranteed to be reentrant, and identical everywhere.

Change-Id: I3140bbd566f44ab820d131c584a5d4ec6134c5a0
Ref: http://pubs.opengroup.org/onlinepubs/9699919799/functions/rand.html

Bug relating to issue:- http://b/25090786

base_frame_target is supposed to track the idealized bit
allocation based on error score and not the actual bits
allocated to each frame.

The clamping of this value based on the VBR min and max pct values
was causing a bug where in some cases the loop that adjusts the
active max quantizer for each GF group was running out of bits at
the end of a KF group. This caused a spike in Q and some ugly artifacts.

A second change makes sure that the calculation of the active
Q range for a group DOES, however, take account of clamping.

Change-Id: I31035e97d18853530b0874b433c1da7703f607d1

Periodically estiamte noise level in source, and only denoise
if estimated noise level is above threshold.

Change-Id: I54f967b3003b0c14d0b1d3dc83cb82ce8cc2d381

Add the row and column index to the argument list of unit functions
called by foreach_transformed_block wrapper. This avoids the
repeated internal parsing according to the block index.

Change-Id: Ie7508acdac0b498487564639bc5cc6378a8a0df7

Change-Id: I2f2deb700748408b8278b7f5c29ee1f2e39785ec

Change-Id: I79fc3c0594535adc0056339c929cff69b8188760

Change-Id: Ic64b6928af7ae8ecc987f845b0bf0faecdacb072

Fixes a bug in the calculation of the boost for key frames.

Change-Id: I75e9c96a9e86379239fbbbecb56ccd529783dc7c

Change-Id: Ibd0e13721a2bb71c532d20b36c42f4cccf5c5de2

Change-Id: Id48fb193bbdb3afed1d0db26c4ddded65a293b1b

Change-Id: Idb869a77a126982814b8e7e288f952a65340e6be

Change-Id: Ia81cf3858ef6c8d1fd4b1fb2dd9627906081129d

A new version of vp9_highbd_error_8bit is now available which is
optimized with AVX assembly. AVX itself does not buy us too much, but
the non-destructive 3 operand format encoding of the 128bit SSEn integer
instructions helps to eliminate move instructions. The Sandy Bridge
micro-architecture cannot eliminate move instructions in the processor
front end, so AVX will help on these machines.

Further 2 optimizations are applied:

1. The common case of computing block error on 4x4 blocks is optimized
as a special case.
2. All arithmetic is speculatively done on 32 bits only. At the end of
the loop, the code detects if overflow might have happened and if so,
the whole computation is re-executed using higher precision arithmetic.
This case however is extremely rare in real use, so we can achieve a
large net gain here.

The optimizations rely on the fact that the coefficients are in the
range [-(2^15-1), 2^15-1], and that the quantized coefficients always
have the same sign as the input coefficients (in the worst case they are
0). These are the same assumptions that the old SSE2 assembly code for
the non high bitdepth configuration relied on. The unit tests have been
updated to take this constraint into consideration when generating test
input data.

Change-Id: I57d9888a74715e7145a5d9987d67891ef68f39b7

This causes the output of find_ref_mvs() to always be unique or zero.
A nice side-effect of this is that it also causes the output of
find_ref_mvs_sub8x8() to be unique-or-zero, and it will not ignore
available candidate MVs under certain conditions.

See issue 1012.

Change-Id: If4792789cb7885dbc9db420001d95f9b91b63bfa

See issue 1088.

Change-Id: Icb15d33b4e316add848f210b50cbccd7c7847207

Change-Id: Ifb384fa571eb08b516ed08fe05b8bca0c94b1edf