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Change-Id: Ie9fb6a4078eb6a3fb7c4ff1453831ab9afe23121

When calculating delta in VP8 denoiser, since the block size is fixed to 16x16,
the divisor is 256, which is the number of the pixel.
But in VP9, the block size varies, the divisor should correspond to the block
size.

Change-Id: Ibdc1e5d23ba8c788b0d0dc6d406bcdfc34c1b142

One is a more aggressive version of the pruned subpel tree
search where only a single halfpel candidate is searched.
The search candidate is based on a surface fit result.
The other is a method to obtain the subpel position at one
shot based on the same surface fit.

The methods have not been deployed in any speed setting yet.

Change-Id: I34fef3f2e34f11396c9d1ba97f4be8c4ffca62d3

Also includes yv12 config changes.

Change-Id: Iacf40d8bf486815b54c32a127ce3cd4516b7e44f

Change-Id: Ice692334f75157446a44a6e81503cada977934f4

This commit enables the encoder to skip checking ALTREF inter modes
in ARF coding, if the predicted motion vectors suggest that the
GOLDEN_FRAME provides higher prediction accuracy than ALTREF_FRAME.

It improves the speed 3 encoding speed by about 5%, at the expense
of compression performance loss -0.041% and -0.225% for derf and
stdhd, respectively.

pedestrian_area 1080p 2000 kbps
66705 b/f, 40.909 dB, 118738 ms ->
66732 b/f, 40.908 dB, 113688 ms

old_town_cross 720p 1500 kbps
14427 b/f, 36.256 dB, 62746 ms ->
14412 b/f, 36.252 dB, 60690 ms

blue_sky 1080p 1500 kbps
51026 b/f, 35.897 dB, 73310 ms ->
50921 b/f, 35.893 dB, 70406 ms

bus CIF 1000 kbps
21301 b/f, 34.841 dB, 7326 ms ->
21248 b/f, 34.837 dB, 7196 ms

Change-Id: I76cf88b4d655e1ee3c0cb03c8a5745493040e8d2

iOS 5 support isn't available in the Xcode 6 install; iOS 6 covers
phones starting at the 3GS, so should be a reasonable base line

Change-Id: I15572ec0dd73f1ffc88c58120c706384a01f2478

The version of gcc4.6 included with the Android NDK through r10b
fails to compile this function. Replace it with C code.

BUG=860

Change-Id: Ifcc0476664071aec46a171cdd5ad17305930986a

The version check was incorrectly matching some versions of clang
which reported as gcc 4.2

Change-Id: I686d3576e71883fe1463206b56ab5e2aa9bb68a8

Use a local variable to hold the result of vp9_is_scaled.

Change-Id: I5e203909805923e20eefef596bc84424da47dbe2

A left shift of negative value causes IOC runtime warnings, this
commit converts two such left shifts to multiply to avoid IOCs.

Change-Id: I8811428768d7135e6e16af4b3094d0341589a995

The first comment is obselete given the way is now normative in VP9
bitstream. The second comment line was too long.

Change-Id: I6546585babf60d466485ddcf2daa6d2fa79e999a

Change-Id: I6f67b171022bbc8199c6d674190b57f6bab1b62f

Change-Id: Id757d2c940756ce1b0ead2ea24af9ac0a493de05

As reported in issue #850, the condition for border extension was not
complete. This commit added the case when the scaling is enabled.

This fixes issue #850.

Change-Id: I67768b23f0dcc4ac9a9aa0a0825b0fe8cb85a72e

Change-Id: Ia959e24b4676242c80a8867d2c39a6fee90f71a5

Compiler build issue when output stats enabled.

Change-Id: I7b5409108f3f27ba61b0241b9340b412683eff45

Change-Id: I35b015a759325d72d0da427c61a09f19f8e69697

Also adds some miscellaneous high bit-depth setup functions.

Change-Id: I66488b08a5a2a8cb9518ca10497cf1c1501ceded

Adds high-bitdepth loopfilter, temporal filter and postproc functions

Change-Id: I81c8a9176890784686bc4f2af0d550d243b3b2d3

The rd_thresholds are adaptively changed based on best mode tested.
It was only changed for the same block size, this commit makes the
adaptation for similar block sizes too. The commit also made minor
adjustment and code cleanups.

The impact on encoding time for _ped:
118089 ms -> 111927 ms

The impact on compression:
derf:  -0.339%
stdhd: -0.303%

Change-Id: I8817fed1102350497f2ec631849e43f753878e5d

Change-Id: I0ca6746696d81657c035b0f6523c9af370da3c95

Adds code to return an integer cost list for NSTEP search. Then
uses it for pruned subpel search in speed 3.

derf: -0.06%
Speed on mobcal 720p increaes from 10.28 fps to 10.65 fps.
[Subject to further testing].

Change-Id: Ib591382d25b2c11bcaba9d3a27a93a9d1ab27a96