* 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

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

* 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

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

Change-Id: Id5fd82a504def2523292466fbaad5dade9424c72

There are no functional optimizations for AltiVec/PPC

Change-Id: I6877a7a9739017fe36fc769be22679c65ea99976

Change-Id: If0ca8b25b4800d4336e6cbc97194cd9b01c5b5a3

Change-Id: Ic416a7f145001a88f5a7f70dde9b1edbc1b69381

Change-Id: Ibc514684def9914c66f04cb7931f773e2b79c168