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The commit cleans up the header files in vp9_entropymv.h. This
file should only depend on vp9_mv.h and vp9_prob.h. Remove the
giant vp9_blockd.h from header file list.

Change-Id: I44cd26d2cfd10a16a9325778347dd53f888a874c

For regular inter frames, if the distance from GOLDEN_FRAME is larger
than 2 and if the predicted motion vector of LAST_FRAME gives lower
sse than that of GOLDEN_FRAME, skip the GOLDE_FRAME mode checking in
the rate-distortion optimization. It provides about 5% speed-up at
expense of -0.137% and -0.230% performance down for speed 3. Local
experiment results:

pedestrian 1080p 2000 kbps
66712 b/f, 40.908 dB, 113688 ms ->
66768 b/f, 40.911 dB, 108752 ms

blue_sky 1080p 2000 kbps
51054 b/f, 35.894 dB, 70406 ms ->
51051 b/f, 35.891 dB, 67236 ms

old_town_cross 720p 1500 kbps
14412 b/f, 36.252 dB, 60690 ms ->
14431 b/f, 36.249 dB, 57346 ms

Change-Id: Idfcafe7f63da7a4896602fc60bd7093f0f0d82ca

Commit message longer than commit edition.

Simulator and devices:
  Add a common minimum iOS version that can be shared by iOS and iOS
  simulator targets.

Fix --enable-debug (for device targets; sim was fine):
  Allow for successful configuration and build with --enable-debug when
  CXX is available by:

  - Using CXX as LD (when CXX is available).
  - Passing the correct form of the iOS minimum version parameter based on
    whether LD is CXX or really is ld.

  Note: ld -g still won't work on macosx with this patch, so if CXX is not
  available, configuration will still fail reporting that the toolchain
  cannot link executables when attempting to pass --enable-debug (because
  ld returns an error code since the one included with xcode doesn't
  support the -g argument).

Change-Id: Ia488aed167cc2ca82ee9e980589fb76dddce634f

Moves transform type defines to vp9_common.h from vp9_idct.h
so that they can be included in vp9_rtcd_defs.pl safely.

Change-Id: Id5106227bee5934f7ce8b06f2eb9fa8a9a2e0ddb

fixes --enable-coefficient-range-checking --enable-debug
vp9_idct.h has references to INT16_MIN/MAX; this header is included in
c++ source so needs to request the macros

Change-Id: I2e643eb973c2d84729fa3cf2f4c4d8bf65cfdff0

This reverts commit eafc8c9c.

tran_low_t/tran_high_t don't belong in a public header, they're private.
Similarly the public headers shouldn't rely on config defines,
vpx_config.h isn't installed.

Change-Id: I194ec273598da418df8dd727b6c0e78a556740ad

Change-Id: Iad3db3ca7601529ae32637f859ac8d552da94c87

Change-Id: Ie9fb6a4078eb6a3fb7c4ff1453831ab9afe23121

Some header file in vp9_idct.c has been included in vp9_idct.h.
This commit removes these redundant declarations.

Change-Id: I0238c27e4efff5c981eb437022c6bc6970c4e445

This commit fixes a compiling error in vp9_idct.h, where the codec
checks that the intermediate steps of transformation fit within
16-bit length. The issue was due to broken file dependency.

Change-Id: Ib22bba13a1e6df28489cb23d6774c561969f1fdc

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

This patch re-enabled the feature in Pengchong's patch
(commit 12861260). Originally, it
was turned on while use_lastframe_partitioning > 0(not used anymore).
Now it was added as a feature, and turned on while speed >= 2.
As described in the original patch, this feature helps speed up the
slideshows in YouTube.

Change-Id: I1b0f18d65da1ee1c8d1e117dabba910c5207c471

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