the sse4 code expects 16-byte aligned arrays; vp8 already had a similar
change applied:
b2aa4017 Align SAD output array to be 16-byte aligned

Change-Id: I5e902035e5a87e23309e151113f3c0d4a8372226

Reset the reached_eos flag in webm_guess_framerate in case it ends
up consuming the entire file. Also adding a vpxdec shell test to
verify this behavior.

Change-Id: I371eebd2105231dc0f60e65da1f71b233ad14be5

If U is not skippable, then do not perform the check on V.

Change-Id: Iba5e8362bd42390197f373c44388a426a4404549

* changes:
  vp8_regular_quantize_b_sse2: remove dead init
  vp8cx_pick_filter_level*: remove dead inits
  vp8_decode_frame: remove dead increment
  rdopt: remove dead stores
  find_next_key_frame: remove dead init & store
  multiframe_quality_enhance_block: remove dead stores
  vp8_print_modes_and_motion_vectors: remove dead stores

This commit turns on the Hadamard transform based rate distortion
estimate for all block sizes in RTC coding mode. It conditionally
skips the rate distortion estimation if all zero block flag is set
on. No significant encoding speed change is observed. The
compression performance of speed -6 is improved by 1.7% over using
it only for block sizes of 32x32 and below.

Change-Id: I768145e6f05c737b05b5b5f1ee674e929532cafb

Change-Id: Ide5eefadbb3cab38743a69f744a003abb37a6506

Change-Id: I28026b86d03264b9f4e2fc8ac1d3c74aa3954208

Change-Id: Ie9a6fac02796d24e6f4a15416d0b4c19010547df

Change-Id: Ia8a20c6751cc6d63c60bb00b99c78faca1e61051

Change-Id: I8c7f5b9718ef14e4397a263aa9f52a9edcf7d1cd

Change-Id: I33ca9cddfdd54c3d8a23c1cb978986a537a20bf2

Change-Id: I438cbf4970fa2220fb73b0b41a29e654836d4e3b

The threshold scaling factor was calculated wrong using partition
size "bsize". Thank Yaowu for pointing it out. It was fixed and no
speed change was seen.

Change-Id: If7a5564456f0f68d6957df3bd2d1876bbb8dfd27

The following functions use the count parameter to either loop or select
dedicated paths:
vp9_lpf_horizontal_16_c
vp9_lpf_horizontal_16_sse2
vp9_lpf_horizontal_16_avx2
vp9_lpf_horizontal_16_neon
vp9_highbd_lpf_horizontal_16_c
vp9_highbd_lpf_horizontal_16_sse2

Change-Id: I7abfd2cb30baa292b4ebe11c847968481103c037

* indianrunnerduck:
  Update CHANGELOG for v1.4.0 (Indian Runner Duck) release
  vp9: fix high-bitdepth NEON build
  Fix use of scaling in joint motion search
  Prepare Release Candidate for libvpx v1.4.0
  vp8cx.h: vpx/vpx_encoder.h -> ./vpx_encoder.h

Change-Id: Ib2eee50f02e12623aae478871cb9150604bb2ac2

Change-Id: Id31b4da40c484aefc1236f5cc568171a9fd12af2

Change-Id: I560b1a954a5089a8af69952b8084408c6a420b96

This commit accounts for the transform block end of coefficient flag
cost in the RTC mode decision process. This allows a more precise
rate estimate. It also turns on the model to block sizes up to 32x32.
The test sequences shows about 3% - 5% speed penalty for speed -6.
The average compression performance improvement for speed -6 is
1.58% in PSNR. The compression gains for hard clips like jimredvga,
mmmoving, and tacomascmv at low bit-rate range are 1.8%, 2.1%, and
3.2%, respectively.

Change-Id: Ic2ae211888e25a93979eac56b274c6e5ebcc21fb

Change-Id: Iebf2ad2b1db7e2874788fda8d55e67f4cb1149f1

Change-Id: Ia4f3feb20df0e89cc51b02def858e12e927312cc

The vbp thresholds are set seperately for boosted/non-boosted
superblocks according to their segment_id. This way we don't
have to force the boosted blocks to split to 32x32.

Speed 6 RTC set borg test result showed some quality gains.
Overall PSNR: +0.199%; Avg PSNR: +0.245%; SSIM: +0.802%.
No speed change was observed.

Change-Id: I37c6643a3e2da59c4b7dc10ebe05abc8abf4026a

remove incorrect specializations in rtcd and update a configuration
check in partial_idct_test.cc

(cherry picked from commit 88453340)

Change-Id: I20f551f38ce502092b476fb16d3ca0969dba56f0

To enable us to the scale-invariant motion estimation
code during mode selection, each of the reference
buffers is scaled to match the size of the frame
being encoded.

This fix ensures that a unit scaling factor is used in
this case rather than the one calculated assuming that
the reference frame is not scaled.

(cherry picked from commit 8d8d7bfd)

Change-Id: Id9a5c85dad402f3a7cc7ea9f30f204edad080ebf

Code cleanup, no change in behavior.

Change-Id: I043b889f8f0b3afb49de0da00873bc3499ebda24