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If 2 or more 8x8 blocks are identified as skin, the macroblock will be
labeled as skin.

Change-Id: I596542c81a2df9e96270cab39d920bbfeb02bc6e

BUG=webm:1438

Change-Id: I5feb31c254d02e116e624cfe702e73ba5a1f7aca

some build systems have trouble with duplicate basenames.
vpx_dsp/skin_detection.[hc] were added in:
658e8542 Merge skin detection code in vp8/9.

BUG=webm:1438

Change-Id: Ieaa70b40bda409ec23e6d179b47a930ac6243b05

Set subpel prune_evenmore only for non_reference frames,
instead of all TL > 0 frames. Gain some quality back at
cost of small speed loss (~1-2%).

Change only effects SVC encoding at speed >= 7.

Change-Id: I5b9f51e51dccfd7050521a66996176b0415ca3f9

Change-Id: Ib3546032a27c715bf509c0e24d26a189bc829da8

But still check for NULL before calling Init()

Change-Id: I2bf2887e1064c9103d29c542d20365c0aea75d76

x86 simd register operations generally prefer and may require 16 byte
alignment.

Change-Id: I73ce577a90dc66af60743c5727c36f23200950ba

Change-Id: I1186cf1dd8cde42f5970928f43edfc852298289d

the check for error correction being disabled was overriding the data
length checks. this avoids returning incorrect information (width /
height) for the decoded frame which could result in inconsistent sizes
returned in to an application causing it to read beyond the bounds of
the frame allocation.

BUG=webm:1443
BUG=b/62458770

Change-Id: I063459674e01b57c0990cb29372e0eb9a1fbf342

This reverts commit f08581c1.

type conversion warnings abound.

Change-Id: I41d4c0e7a388e1008bdbc55fefda4bbca3f89f00

BUG=webm:1438

Change-Id: Ie3dc034c7dbb498a0b088a767b1936ddeed4df14

min_gf_interval should be no less than min_altref_distance + 1,
as the encoder may produce bitstream with alt-ref distance being
min_gf_interval - 1.

BUG=b/38450599

Change-Id: Ifb733daa643ebc668d1b23e1ce92db94b66dabe8

Roughly 2x speedup. Since the only change for HBD is to store(), the
improvement appears to hold there as well.

BUG=webm:1424

Change-Id: I15b813d50deb2e47b49a6b0705945de748e83c19

* changes:
  buffer.h: add num_elements_
  buffer.h: zero-init all values
  buffer.h: use size_t

Enable simple_block_yrd for temporal enhancement layers (TL > 0).
And remove block size condiiton for SVC mode.
Only affects speed >= 7 SVC.

Speedup ~3-4%.
avgPSNR regression on RTC for (3 spatial, 3 temporal) layers: ~1%.

Change-Id: Iff4fc191623b71c69cd373e7c0823385e7ac67ed

raw_size_ was being incorrectly computed and used

Change-Id: Iade45f69964c567ffb258880f26006a96ae5a30d

Change-Id: I18d90658bcd4365d49adcadd6954090b3b399aa8

Change-Id: Ieca3f1ef23cd1d7b844ea3ecb054007ed280b04f

Change-Id: I4b51043cb3f5955efe947fe4685aed4a21adb8bd

Keep the 1/4subpel for all frames, use SUBPEL_TREE_PRUNED_EVENMORE
for all temporal enhancement layer frames.

Change-Id: Ibc681acbb6fc75b7b3c57fc483fcb11d591dfc9a

Change-Id: Idfbd2e01714ca9d00525c5aeba78678b43fb0287

Change-Id: I2da4110e843b6e361028b921c24b6ca2ea9077d9

It is initialized to be { INT_MAX, 0, ... } in ffe0f9b7.
No effect on encoders.
Make it consistent with other initializations.

BUG=webm:1440

Change-Id: Ie2a180d93626b55914c8c4255e466a1986d2b922

visual studio will warn if a 32-bit shift is implicitly converted to 64.
in this case integer storage is enough for the result.
since:
f3a9ae5b Fix ubsan failure in vp9_mcomp.c.

Change-Id: I7e0e199ef8d3c64e07b780c8905da8c53c1d09fc

BUG=webm:1440

Change-Id: I7074e42bdfa8dd25f11bbb3f2ab1b41d6f4c12e4

Change-Id: Iff1dea1fe9d4ea1d3fc95ea736ddf12f30e6f48d

For SVC 1 pass non-rd mode:
Force subpel seach off for SVC for non-reference frames
under motion threshold.

Add flag to svc context to indicate if the frame is not used
as a reference.

Little/no quaity loss, ~2% speedup.

Change-Id: Ic433c44b514d19d08b28f80ff05231dc943b28e9