set_vt_partitioning does double math

Change-Id: I8e9d73d5c89b937a5326abf04164d24d9d88c5ef

This parameter is deprecated. Its function is replaced with
other explicit condition check.

Change-Id: I61337e350ba8ca9eb50382db8b4d4acbf45cb7eb

double -> int64
+ make threshold_multiplier an int

Change-Id: I6d3607fdf13d670f57c9d9b04a80acb2be1346a0

vp9_avg_8x8 does not depend on x86inc, fixes 32-bit OS X build

Change-Id: I709b874ea84bf57c8cdb5ac7d43eecc6b8c1a2dd

- Some fixes to surface fit.
- Returns variance function as cost rather than sad in the
  pattern search and diamond search functions. Only
  vp9_pattern_search_sad function used in bigdia search
  uses sad as integer 1-away costs.
- Deploys SUBPEL_TREE_PRUNED_MORE for speed 4+.

Results:
derf [Speed 3]: About +0.036% in coding efficiency without any
discernible speed loss.
derf [Speed 4]: About 2-3% faster at -0.199% loss in coding efficiency.
derf [Speed 5]: About 3-4% faster at -0.149% loss in coding efficiency.

Change-Id: I8462f94f6adb46966ca964f2bd0400977357fd63

In model_rd_for_sb function, the spatial domain SSE and variance
are checked to see if transform coefficients are quantized to 0.
Besides that, this patch adds another set of thresholds that are
much more strict. These thresholds are used to conduct a partition
block level check to measure if all its TX blocks are skippable
for YUV planes. If it is true, x->skip is set for this partition
block, and thus its mode search is terminated.

This speeds up the encoding at very low prediction error case,
such as screen sharing application. This patch covers what
rd_encode_breakout_test() does, so that function is removed.

Borg test at speed 3 shows:
For stdhd set, psnr: +0.008%, ssim: +0.014%;
For derf set, psnr: +0.018%, ssim: +0.025%.
No noticeable speed change.

Change-Id: I4e5f15cf10016a282a68e35175ff854b28195944

This fixes valgrind message issue 870.

Change-Id: Ibbc2481923a2995029ab05de30c9e8a6e9f0f9a8

Change-Id: Ie35a965a6b8de536ccaf61ff61498620d22db205

If the GOLDEN or ALTREF frame was last updated > x frames in the past,
don't use them for denoising (only consider LAST). Using an old reference
frame for denoising, e.g., if it is a long-term reference or the last key frame,
can cause some visible artifacts, in particular in the aggressive denoising mode.

Change-Id: I239c9fbb092c36cba7e95328f1fa67a58d6a7ed9

Change-Id: Ife939930309ceea730dd5df594b8f36e6644bf36

For input source with size that is not multiple of 8, the size is
rounded to 8 and saved in width or height, the original source sizes
are saved in crop_width and crop_height. This commit corrects the
computation of bottom and right extension amounts to use the orignal
sizes, hence crop_width and crop_height.

In addition, this commit also adds the missed initialization for
uv_crop_width and uv_crop_height.

This addresses issue #834

Change-Id: I084543ca7645a4964b88f7cf8ff668f517d3a39b

Moves the high bitdepth bit-shift operations to tools_common.c

Change-Id: Ifab91574362609cd224d2d6bae5fde00652eb3e4

The unit test is to check the bitexactness of SSE2 code with C code.

Change-Id: I13cc08a557b02357e5d6c2db7a49e93ce0d8e16f

This reverts commit 72ef1949.

Change-Id: Ic1906bcc6da05d2e6529152b92df809c8e5a2406

The concept:

There's too much noise in source pixels for variance and at low bitrate
the reconstructed looks nothing like the source so we have problems
getting good partitionings with either.   This skirts the issue by using
a box blur scaled down version for variance calculations.  To compare
against source_var_ moved keyframe to be rd based like source_var.

Change-Id: Ie3babdbfadae324b7b5a76bea192893af27f0624

Change-Id: Ie69a164bc166b6a8819777038d65a7d9f9c3361f

This commit breaks the overly broad header files into more
targeted and smaller ones, to help better structure the system
layout.

Change-Id: I7b24559d3ea6e582cf5d9bbe8f71459f9824d71b

Change-Id: I3a7f83ab1dbfcedc8a82fe798c2fa30dd9c7d696

Change-Id: I6f2865bb8ba9295f5c45a4cad065aecbe1e63c32