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Current setting had active_worst_quality set too high (close to worst_quality)
for first frame(s) following first key frame. This changes that to be somewhat
more aggressive in allowing active_worst_quality to be lower following key frame.

Also remove the 4/5 reduction in active_worst for key frame as
this should be set by the user qp_max setting.

Change-Id: I0530b3ddcc85c00e3eb7568de1b14a31206c4a4c

Change-Id: I266777d40c300bc53b45b205144520b85b0d6e58
(cherry picked from commit a1b726117f5470f227bc90cd030b7d25045dc510)

Change-Id: I3b5a478d198868c2796366f0ac59d0e2036308b8

Change-Id: I39d9f13fa34984ee9dad0c4f303ef672635f420e

This commit rename a reserved color space entry to BT_2020, it intends
to provide support for VP9 bitstream to pass along the color space
type defined in BT.2020(Rec.2020)

please note this entry does not have any effect on encoding/decoding
behavior, but allow applications to the pass the information along
from encoding end to decoding end.

Change-Id: I4678520e89141ea5e8900f7bd1c0e95b710b7091

The obj_int_extract code is no longer worth maintaining. It creates
significant issues when adapting for different build systems and no
longer offers as significant of a performance benefit due to
improvements in intrinsics.

Source files will remain until the various third-party builds are updated.

The neon fast quantizer has been moved to intrinsics. The armv6 version
has been removed because so few remaining targets require it.

Compilers and processors have improved significantly since the
pack_tokens code was written. The assembly is no longer faster than the
C code.

pack_tokens were the only optimizations for the armv5te targets so the targets
will be removed after the test infrastructure has been updated.

BUG=710

Change-Id: Ic785b167cd9f95eeff31c7c76b7b736c07fb30eb

This patch was to fix the vpxdec fuzzing3 test failure. When an
error occurs, setjmp() is invoked, which calls the decoder
removing routine. In multiple thread situation, other threads
could try to access the frame context memory that is already
deallocated, thus causing a segfault.

An invalid unit test was added for this issue.

Change-Id: Ida7442154f3d89759483f0f4fe0324041fffb952

The aim of this patch is to apply a positive weighting to
frames that have a significant number of blocks that are
of low spatial complexity and are dark. The rationale behind
this is that artifacts tend to be more visible in such frames.

In this patch the weight is only applied in regard to the distribution
of bits between frames. Hence if all the frames share similar
characteristics (as is the case for most of our short test clips) there
will be little or no net effect.

However, the effect can be seen on some longer form test content.

For example Tears of steel baseline test:
2323.09 Kbit/s opsnr 39.915 ssim 74.729
With this patch:-
2213.34 Kbit/s opsnr 39.963 ssim 74.808
(Sligtly better metrics and about 5% smaller)

The weighting may well need some further tuning along side changes
to the aq modes.

Change-Id: Ieced379bca03938166ab87b2b97f55d94948904c

Change-Id: Ia540eac5f066ae95280c2f898370eddf0110c279

This commit removes the cyclic aq mode dependency on
in_static_area and reworks the corresponding cut-off thresholds.
It improves the compression performance of speed -5 by 1.47% in
PSNR and 2.07% in SSIM, and the compression performance of speed
-6 by 3.10% in PSNR and 5.25% in SSIM. Speed wise, about 1% faster
in both settings at high bit-rates.

Change-Id: I1ffc775afdc047964448d9dff5751491ba4ff4a9

This will save the memory and improve the decode speed due to
removing unnecessary memset of big prev_mi array for
all the key frames.

Decoding a all key frames 1080p video shows speed improve around 2%.

Change-Id: I6284a445c1291056e3c15135c3c20d502f791c10

For configured with --enable-vp9-highbitdepth

Change-Id: I2b181519d7192f8d7a241ad5760c3578255f24e6

Change-Id: Ie106c5335c9ba5aac81e23150e7026fb6ea6196e

functions were removed in:
2134eb2f Remove pair quantization

fixes ARM build

Change-Id: I634de50c2752408381d70afb0f5088b61052853c

Change-Id: Ia2b2a895deefaaf7b34bf26df86add56dbab082c

Change-Id: I2ceee7341d906259002c0ea31ea009ae32c04bfd

Check that the numerator is not zero. If it is, guess 30fps.

Fixes a clang IOC error in the quantize test. It's very unlikely for
this to occur in the wild because the setup in the quantize test is very
nonstandard.

Change-Id: Icdab7b81d4e168d3423e14db20787f960052e0c3

Change-Id: Ibd9114485c3d747f9d148f64f706bf873ea473ac

MACROBLOCKD structures require alignment.

This fixes an issue caught by clang IOC.

Change-Id: Ibb5bcc122f531b4302a87e1144e4feaf46c1de64

Visual Studio and XCode require the address of the functions be passed.

Change-Id: Id39cab8e50061fdc6ac6018371a3a158c713e14b

This commit makes the RTC coding mode to conditionally skip the
reference frame mode search, when the predicted motion vector of
the current reference frame gives more than two times sum of
absolute difference compared to that of other reference frames.

It reduces the runtim by 1% - 4% for speed -5 and -6. The average
compression performance is improved by about 0.1% in both settings.

It is of particular benefit to light change scenarios. The
compression performance of test clip mmmovingvga.y4m is improved by
6.39% and 15.69% at high bit rates for speed -5 and -6, respectively.

Speed -5
vidyo1 16555 b/f, 40.818 dB, 12422 ms ->
       16552 b/f, 40.804 dB, 12100 ms

nik    33211 b/f, 39.138 dB, 11341 ms ->
       33228 b/f, 39.139 dB, 11023 ms

mmmoving 33263 b/f, 40.935 dB, 13508 ms ->
         33256 b/f, 41.068 dB, 12861 ms

Speed -6
vidyo1 16541 b/f, 40.227 dB, 8437 ms ->
       16540 b/f, 40.220 dB, 8216 ms

nik    33272 b/f, 38.399 dB, 7610 ms ->
       33267 b/f, 38.414 dB, 7490 ms

mmmoving 33255 b/f, 40.555 dB, 7523 ms ->
         33257 b/f, 40.975 dB, 7493 ms

Change-Id: Id2aef76ef74a3cba5e9a82a83b792144948c6a91