1. svc_encodeframe.c will not handle frame or stats packets anymore.
   The app will process them.
2. Remove APIs that related to these packets.

Change-Id: Id0d7f8b458dc09c6f77064c0878fd4e572db001b

Change-Id: Ib8498c3127c397b453beff140503b2aca0d11cfc

This speed feature is used in real-time setting only. Remove the
related condition check in the rate-distortion optimization search
loop.

Change-Id: Iaacc1e268214634e6f95c5048c28a60cec6c42fc

Unify this speed feature in the ref_frame_skip_mask scheme.

Change-Id: I7ea5646da02d3ea643680c22d50dabd448d55a27

Change-Id: I0da29c858c6c1eb5ef07cee8f599329f5a002da9

Refactor overlay frame speed-up related function. Make it unified
with the ref_frame_skip_mask system and Move it out of the mode
search loop.

Change-Id: I0dde9baf44354f6ba00b4679cba02fa6a30c7316

Change-Id: If3035f0e7dfcfe88c4bbf4eec66761e070476df0

This commit refactor the rate-distortion optimization search for
regular block sizes to remove the speed feature dependency on mode
search order.

Change-Id: Ied033ee484c2957e17baa7b6450b720fe7dd0e7d

This issue is found when the denoising mode is set to kDenoiserOnYUVAggressive.
Updated the C code to make it the same with SSE version.

I also changed several lines in VP9 denoiser for the code style.

Change-Id: I640d48cf946fe8c6a400e6e252107501d1e226d3

This speeds up the encode significantly. Also added a comment about using
best quality to keep new developers informed.

Change-Id: I04e8154d4b2c4cae07fe7cc9a71e707f649e9ed4

don't bother decoding any further after receiving an earlier decode
error until a key/intra-only frame is encountered.

Change-Id: I381917b70d7a9e6f8d6de42e3d181bb113a4cec4

* changes:
  vp9_dthread: simplify loop_filter_row_worker signature
  simplify vp9_loop_filter_worker signature
  vp9_decodeframe: simplify tile_work_hook signature

* changes:
  vp9_loop_filter_frame_mt: defer allocations
  vp9_loop_filter_alloc: reorder parameters

This commit fixes a bug related to skipping intra mode checking, by
using a separate variable to store the best prediction error from
inter mode. It avoids unintentionally overwriting intra mode
rate-distortion cost, and hence affecting other speed features.

Change-Id: I99e12993339c84c8b4f597996b372012e5858fae

Assigning selected reference frame pointer is done in the
encode_superblock function. No need to do this at the end of
rate-distortion optimization search.

Change-Id: I33fcede0fd304b4a4c4deef2d126d79546a9c070

This commit refactors the vp9_rd_pick_inter_mode_sb function to
remove the intra mode early termination dependency on the mode
search order.

Change-Id: If6ac49aa7c530c7b9a5bd31b0ab84db83e192bec

This commit allows the encoder to find current best prediction mode
state using best_mbmode, instead of fetching from the static mode
search table via best_mode_index.

Change-Id: Ibefeab83aed33a49c2be03e83f09153856ca4271

Allow building for targets which have NEON but not EDSP or MEDIA.

Set HAS_NEON flag for builds which have neon assembly but not
intrinsics.

Change-Id: Ibfa81a8444a8c55d1d3209c533d1d70d2f809669

The use of use_lastframe_partitioning is totally removed in good-
quality encoding. Its usage in real-time encoding needs to be
evaluated to see if it can be removed too.

The Borg tests at speed 4 showed:
stdhd set: 0.220% psnr gain, 0.166% ssim gain;
derf set:  0.329% psnr gain, 0.476% ssim gain.

Speed test on selected clips showed 1.54% speedup.(Worst case:
pedestrian_area_1080p25.y4m, speed loss: 1.5%)

Change-Id: I1c844d329b0b5678558439b887297c1be7ddab00