Merge "Fix sub8x8 motion search on scaled reference frame" into sandbox/jingning@google.com/decoder_test_suite

Merge "Fix high bit depth with scaled reference frame" into sandbox/jingning@google.com/decoder_test_suite

This commit fixes a buffer overflow issue related to sub8x8 motion
search on scaled reference frame.

Change-Id: Iffeebc8787c1ed2b0cb3a7821349e028639d9eb5

This commit fixes an encoder issue in high bit depth implementation
that causes enc/dec mismatch in scaled reference frame.

Change-Id: I97655aa213f830d8e2dcd98253c3008abda30eea

Change-Id: Id764e573776d4d0ee2c400a4eca0832268e1e2b1

This commit enables the encoder to exercise internal frame resizing
and to use scaled reference frame for sub8x8 block motion compensated
prediction.

Change-Id: I42703da4a4b075c6aefe9a9f687374af65c3c73f

Adds two new vp9 parameters --min-gf-interval and --max-gf-interval
to enable testing based on frequency of alt-ref frames.

Also adds a unit-test to test enforcement of min-gf-interval.

For both these parameters the default value is 0, which indicates
they are picked by the encoder, based on resolution and framerate
considerations. If they are greater than zero, the specified
parameter is honored.

(Additional note by paulwilkins)
Note that there is a slight oddity in that key frames are also GFs and
considered part of  GF only group. However they are treated as not
being part of an arf group because for arf groups the previous GF is
assumed to be the terminal or overlay frame for the previous group.

(end note)

Change-Id: Ibf0c30b72074b3f71918ab278ccccc02a95a70a0
(cherry picked from commit 98526433)

Merge "VP9 decoder performance test suite - buffer process" into sandbox/jingning@google.com/decoder_test_suite

This commit hacks the vp9 encoder to produce bit-streams that
exercise maximum reference frame buffers at decoder, as part of
the VP9 decoder performance test suite. It fullfills all the 8
reference frame buffers first and then temporarily suspends the
buffer update. It selects the frames from this static buffer pool
as reference frames for the next a few coding frames. When all
the frames in the reference frame buffer are covered, the codec
resumes the buffer update process. Such pattern repeats every
64 frames.

It verifies the decoder capability to handle up to 8 reference
frames in buffer.

Change-Id: I796701eba53ed19ae73351d23d676311f12c43a1

Count the average sub-pixel motion vector, sub8x8 block, intra
prediction mode use case.

Change-Id: Idbccc67a7eb4d2447b02b1fc158fdc8a344c2f21

Merge "Set up decoder end coding statistics tracker" into sandbox/jingning@google.com/decoder_test_suite

This commit allows the decoder to track the percentage of intra
coding mode and sub pixel filter usage, when it is configured. This
provides a measurable approach to generate the VP9 decoder
performance test suite.

Change-Id: I26d40b991f41b1408de2b206ecb0a322cdb561b8

This commit allows the decoder to track the percentage of intra
coding mode and sub pixel filter usage, when it is configured. This
provides a measurable approach to generate the VP9 decoder
performance test suite.

Change-Id: I26d40b991f41b1408de2b206ecb0a322cdb561b8

average improvement ~4x-5x

Change-Id: Iad9c0a296dbc2ea96d000bd009077999ed58a3c5

average improvement ~3x-4x

Change-Id: Idbe4d13a00d05ff8be6559b116f416e42c3b4097

average improvement ~3x-4x

Change-Id: If0fdcc34b17437a7e3e7fb4caaf1067bc175f291

Change-Id: Id526783fa2e3e9bb31229931b6548ac7a9b2b7e6

Only do the check for resizing if the feature is selected
(i.e., resize_mode = RESIZE_DYNAMIC).

And modify condition for checking to be resize_count >= window,
(since framerate can change).

Change-Id: Idceb4e50956bb965a1492b4993b0dcb393c9be4d

Change-Id: I123db2d20ae65a10e2dec95eec61150e2f69546d

only uint8 is required; each use only loads one value as a uint8
quiets a few type conversion warnings

Change-Id: I03dc0dc0eb01ac23a6e8673daa2b77c6c57bf1b0

- Change default real time speed to -6.
- Add vpxenc_vp9_webm_rt_multithread, which encodes
  niklas_1280_720_30.y4m with 2 to 4 threads using 2 to 4
  tile columns.

Change-Id: I4d86c3360aec67ae5d1ba82eb6e0f0be8068b5af

Reduce boost for segment#2 for low bitrates and low-res.

This change is to reduce the rate overshoot at low bitrates.
No change in behavior, except at the very low bitrates.

Change-Id: I0dbd9d3b6356da5804de94adf10fca6a7a8f8948

~90% faster over 20M pixels

Change-Id: I92d80f66e91e0a870a672cfb5dd29bf1a17cb11a

average improvement ~2x-3x

Change-Id: I76f7fc00c0ffdf2b4ba41bf3819f3b6044bcdeff

Keep the same transform cutoff and partition selection
for speed 5 as in speeds >=6 (non-rd speed settings).

Existing setting for key frame at speed 5 allowed transform size
up to 32x32 on key frames, and did not allow for 4x4 block partition size.
This created more visual artifacts on first few frames.

avgPSNR/overallPSNR/SSIM gains of 0.2/0.7/0.8 for rtc_derf(low-res) set,
and 0/0.7/1.1 gains for rtc set.

Change-Id: I8c139ec6c9bb74e14b4ffbad5f12e94f18a59c0b

configure.sh was setting some Mac OS X options for iOS targets, which
confuses the iOS 9 beta SDK in Xcode 7 when linking libraries.

Additionally, old armv6 media extensions were being enabled on iOS
when they're not needed (we always have Neon since iOS 6). These
broke on iOS 9 SDK which no longer assembles those instructions.

Change-Id: I4e4d2722392ead3382ce96289c03ef1e489799d6

average improvement ~2x-3x

Change-Id: Idf8be780b8b4228fc91f110a94e4ee1fd9af0163