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Change-Id: I163874ee64b9c348de2c7cc8e7b2852308734b0e

Change-Id: I1424690fa792b960a1cfb78bbcb37da6b9899ee6

Example performance: 1.8% bit rate savings using
the AQ test mode aq-mode=4 :
./aomenc --codec=av1 --ivf --tile-columns=1 --tile-rows=1 \
                 --kf-max-dist=1000 --kf-min-dist=1000 --cpu-used=0 \
                 --passes=1 --threads=1 --lag-in-frames=0 \
                 --end-usage=q --limit=600 --cq-level=42 \
                 --aq-mode=4 --error-resilient=1 out.bits FourPeople_1280x720_60.y4m

Change-Id: Iba01cf2732a57f3c27481ac2a3c8fc37bb9e5533

Change-Id: I4128af44776d1f361bddc1fdffb75ed2224dbfa5

Change-Id: I2228a3d1778917ac760582fbec3c868be5d9ba1c

This commit changes to send frame size explicitly when
error_resilient_mode=1. Purpose is to allow parsing of bitstream
after a packet loss.

Change-Id: I7d1c010a465aa18914762cc1a3e61db377304c08

Change-Id: I1a462675c06c4b2a5f8b4b347f23fec67feccdd0

The (new) ans experiment replaces the bool coder with uABS bools. The
'rans' experiment adds multisymbol coding.

This matches the setup in aom/master.

Change-Id: Ida8372ccabf1e1e9afc45fe66362cda35a491222

It was replaced by MOTION_VAR in commit cb60b185

Change-Id: I7ab625eef4dbae2e5585d9fa3b6873aa78b2c254

Change-Id: Ic529355880b4dbd076a7e46e7b03a49a1ee5f6f0

* changes:
  Fix warnings reported by -Wshadow: Part4: main directory
  Fix warnings reported by -Wshadow: Part3: test/ directory
  Fix warnings reported by -Wshadow: Part2b: more from av1 directory
  Fix warnings reported by -Wshadow: Part2: av1 directory
  Fix warnings reported by -Wshadow: Part1b: scan_order struct and variable
  Fix warnings reported by -Wshadow: Part1: aom_dsp directory
  Move STAT_TYPE enum to source file.
  Code cleanup: mainly rd_pick_partition and methods called from there.

Change-Id: I6a885b7c6315261d67a9c2fcde914206b8301f4a

The bit accounting functions aom_reader_tell() and aom_reader_tell_frac()
 return the number of bits and 1/8th bits respectively.
This patch changes the return type from ptrdiff_t which is signed to
 uint32_t which is unsigned.
The size_t type is not used since we only care about the number of bits
 or 1/8 bits per entropy coder context and we don't expect to code more
 than 512 megabits per tile.

Change-Id: I84a119d1f52829dcbdb66a92656eacca06e42b11

Now that all warnings are taken care of, add warning flag -Wshadow to
configure.

Note: Enabling this flag for C++ generates some useless warnings about
some function parameters shadowing class member function names. So, only
enabling this warning for C code.

Cherry-picked from aomedia/master: b96cbc44

Change-Id: I3922dea2e6976b16519c4aa4d1bd395c198134f1

The tx_partition_set_contexts function changes tx_size even
for blocks coded with a rectangular transform.
This causes an internal rd inconsistency when using all of
CONFIG_VAR_TX, CONFIG_RECT_TX, CONFIG_EXT_TX.

Change-Id: Ia45d4a8893b0961534219bb96d9652719038c7a1

Change-Id: I97487bf353471bf9d245cd620780adfb1d3fc2b1

This patch adds bit account infrastructure to the bit reader API.
When configured with --enable-accounting, every bit reader API
function records the number of bits necessary to decoding a symbol.
Accounting symbol entries are collected in global accounting data
structure, that can be used to understand exactly where bits are
spent (http://aomanalyzer.org). The data structure is cleared and
reused each frame to reduce memory usage. When configured without
--enable-accounting, bit accounting does not incur any runtime
overhead.

All aom_read_xxx functions now have an additional string parameter
that specifies the symbol name. By default, the ACCT_STR macro is
used (which expands to __func__). For more precise accounting,
these should be replaced with more descriptive names.

Change-Id: Ia2e1343cb842c9391b12b77272587dfbe307a56d

Merge "Adds ability to measure with a higher precision the number of bits read per symbol." into nextgenv2

Change-Id: I371297e6ee000e6dc01ba1544763cbed429b0e5a

Currently the RD loop traverses 4X8 blocks in inverted N order while
the bitstream stores blocks smaller than 8x8 in Z order. This causes a
discrepancy where the RD loop reads uninitialized data while
performing intra prediction.  As a temporary fix simply disable the
use of the extended right edge for 4X8 blocks, until the bitstream can
be changed to match the logical structure of the blocks.

Change-Id: I44a9e4fc1a15cd551a7b38c3c1227bc5dac77e9a

Cherry-picked from aomedia/master: be029580

Change-Id: I3bab28488388f92f2db20e6af8fc9cf2d7f26015

From code only part of nextgenv2 (and not aomedia)

Change-Id: I21f7478a59d525dff23747efe5238ded16b743d2

While we are at it:
- Rename some variables to more meaningful names
- Reuse some common consts from a header instead of redefining them.

Cherry-picked from aomedia/master: 863b0499

Change-Id: Ida5de713156dc0126a27f90fdd36d29a398a3c88

- Change struct name to all caps SCAN_ORDER to be locally consistent.
- Rename struct pointers to 'scan_order' instead of hard to read short
  names 'so' and 'sc'.

Cherry-picked from aomedia/master: 30abc082

Change-Id: Ib9f0eefe28fa97d23d642b77d7dc8e5f8613177d

While we are at it:
- Rename some variables to more meaningful names
- Reuse some common consts from a header instead of redefining them.

Cherry-picked from aomedia/master: 09eea219

Change-Id: I61030e773137ae107d3bd43556c0d5bb26f9dbf8