Manually cherry-picked from AOM:
16944e59 aom_cx_set_ref: Example showing setting a reference frame
8f4c0ec8 examples.mk - Invalid comment fixed

Change-Id: Ifa87611561b089aebef2c132099baf265c845b10

Change-Id: I8cd99f9807dbfe6f70147615d2fd6775a7d98c16

this matches style guidelines and stabilizes successive runs of
clang-format across the tree. remaining types should be address in
successive commits.

Change-Id: I6ad3f69cf0a22cb9a9b895b272195f891f71170f

removes the need for an intermediate cast to int, which was missing in
the call added in:
73a3fd47 aom_mem: Refactor code

quiets a visual studio warning:
C4146: unary minus operator applied to unsigned type, result still
unsigned

Change-Id: I76c4003416759c6c76b78f74de7c0d2ba5071216

common/av1_fwd_txfm.[hc] are encode-only; add a TODO to relocate them

Change-Id: I28cf8d0b22632b04066bcb72f3d2252ee7eb153e

fdct's are only enabled with --enable-av1-encoder

Change-Id: Iaf1dfdf713f2ecd1d215ba7ec635f353c02fa4d0

Some minor adjustments to tile size and bilateral filters.

About 0.1% improvement for midres and hdres, very small change for
lowres.

Change-Id: Ia94f68a926867dfd67da1a8795fd8de0ddd8e2d6

This changes a remaining VP9_HIGHBITDEPTH to AOM_HIGHBITDEPTH

Change-Id: I35efaf9528de660fb69104792a563dba5c41f329

these aren't overly speed critical, best to leave it to the compiler. as
a side-effect this fixes Visual Studio compilation (should have been
INLINE)

Change-Id: Ic81fb5ac76bc19c61efb2f1a965c0f79e9e45ebd

fixes test linkage

Change-Id: I15a7b32551fddc5e78e3035e9d2e94a57ff9f1d2

Change-Id: I8e08ebc8cbb2d1a1f97c8ef0c9237d8dfe0df208

Change-Id: I66ea5a819ab54ecb5327eee20f798d7d7f0833d3

Change-Id: I721c52e69395a99b3a0395dc229de1cbb32670e9

Change-Id: Icb53448442a8f341af3799d873e2fd6f3db5fbe2

Change-Id: Ie7dd4aeee084ef9520f68663aa566ea32350e227

aom_realloc was allocating 1 byte more than needed every time.
Fixed this, and took this opportunity to do a small refactoring.

Change-Id: I38fcb62b698894acbbab43466c1decd12f906789

Change-Id: I2da9cd5da48ae97e770bccfd1233bcc70b484688

Allow using it in aom_dsp.

Change-Id: Ide7d58b6d11f8a45d473fc13bf730ba5bccb5516

Change-Id: I75740e221deb3872647bd480ae506ba68800e8c7

Bitstream syntax:
For a rectangular inter block, 'rect_tx' flag is sent to indicate if
the biggest rect tx is used. If no, continue to decode regular
recursive tx partition.

Change-Id: I127e35cc619b65acb5e9a0717f399cdcdb73fbf0

Change-Id: I4a2faa32cc0847fe14dd8f40156163f4713055ca

In highbd_quantize_intrin_sse2.c.

Change-Id: Iaf6360e456f1fb2f8ff06461afbfecfc0103dda3

Change-Id: I784f32e0e86d873655e46cf68c5c124a698af361

Change-Id: Iba415ab2d4adb3350b4747a58f69db7d02bbab68

Uses an array to map block sizes, y tx sizes, and subsampling
factors to various transform sizes for UV.

Results improve by 0.1-0.2%

Change-Id: Icb58fd96bc7c01a72cbf1332fe2be4d55a0feedc

This corrects a formatting error introduced in:
I1e9d548ce445d29002f0c59ebfd3957a6f15e702
where spaces were used as delimiters instead of tabs.

The corresponding fixes for vp9 and vp8 are in
Ibc4eb8fd82e6b926ba259a679dc98557cadba9b1.

Change-Id: Ica3d625d6672b3c47e0e208b45eede29b9004030

Change-Id: If688da3089ad33f18751fa2f8c46b6f5dc708bd2