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This is the first phase of a new-quant cleanup. We are now only
using a variable width zero bin, so we can simplify the
implementation.

Change-Id: I4da6c663a9d40b4fd08c14818cf7d7fe9b75844c

Add speed feature that uses hash tables to
reuse previously found optimized coefficients
in av1_optimize_txb. This skips some expensive
optimize_txb calls.

Currently shows no significant quality
degredation or speed improvement, and set to off
by default. Requires hash_me, lv_map and
lv_map_multi. Adding to speed features required
changing AV1_COMMON *cm to AV1_COMP *cpi in a
chain of functions.

Variations that have been tried:
-varying the maximum eob on which the feature
activates: 16, 32, 64. 16 currently used. 64
has best hit rate but longer execution time.
-varying the data hashed and the length of hashes
(first hash is 16 bit and based on context data,
while second hash is 16 bit and based only on
pre-optimized qcoeff values.)
-softening the data used for the hashes: ideally
this would raise the number of hits, without
compromising quality too much.

Change-Id: I94f22be82f3a46637c0489d512f2e334a307575f

When current coeff is found to be set as eob, nz_rd is not needed
in the computation of rdcost. Skip it.

Similarly, when has_nz_tail >= 2, computation for nz_rd should be
skipped.

Local runs show ~3% speed up.

Change-Id: I176abf1d1043cab40788934b70558b816af72732

Change-Id: Ied3252c3075e84252d8268a13d3f50066b3418e1

BUG=aomedia:1203

Change-Id: I03ca925734535c31a1ed6bdeb7f29b5b5d5f476c

BUG=aomedia:1195

Change-Id: Ib643ed9d3a23b83e91d908940f5777f6d13b8b19

BUG=aomedia:1209

Change-Id: If4ba99d6784c55768af57cac2b197db62ea2317e

Change-Id: I31a6a66753e1e06a26ad798415c5994920bf22b7

BUG=aomedia:1154

Change-Id: I0c856564dc1eadd9e22be4de6fca5c2b0344dcb5

Use assert to test the assumption noted in the comment.

Ran some encodes with varying per-frame resolutions (using
SUPERRES_RANDOM and RESIZE_RANDOM modes) to ensure that these
asserts are indeed valid.

Change-Id: I30021fff05f9793f80e42c5319bed02b0ae04cbd

BUG=aomedia:1125

Change-Id: I383c752cdd010001e8226ca510097ef693e486bb

Add the last scan position in the 8x32 iscan table. This point
would cause the encoder to ignore the last non-zero coefficient
at scan index 255, hence causing enc/dec mismatch. This commit
fixes and solves this issue.

BUG=aomedia:1193

Change-Id: Ia41ba31ef8549f8809cea3d76ecd91da77e130cf

Put loops of searching jnt_comp only inside handle_inter_mode
function.

Change-Id: I9508dea64da7e6dfe31fad09aac8679cc855f55f

Avoid potential out of boundary buffer access issue.

Change-Id: Ic3766cd5bc2c1c8b4e1cbf38310fe6689aa38b59

When the reference frame size differs from the current coding
frame, skip the use of its motion information for motion field
estimation.

BUG=aomedia:1194

Change-Id: I1a32395367228f4ac86a21099b6b7b2c25e60270

Fix a bug that prevents the mfmv buffer re-allocation when the
frame size changes.

BUG=aomedia:1194

Change-Id: Ied349ead9703069c87fbf9e46668ae1dd0b6141a

this patch enables the loopfiltering_across_tiles_ext experiment by
default since it has been adopted.

Change-Id: I24ee97ff04788af9b0045e9e4b70b9dd103b8af5

Change-Id: I19e59dba2644127f8e26cf4815c55dac693b5641

Change-Id: Iaf47b593bd768db37b499474e21226336db60f37

Change-Id: Ice048df7c909ea09bcafcddc695fc30410345726

Change-Id: I0a89e7eacf6941c735c9615af0bb74bc6d7d2ec4

Change-Id: Iac7c99eee00a426d115af5343c776cd1f2c5be70

This currently only ports a small portion - the random encode/decode mixing
CDFs and bools, plus the patch initial bits tests.

The tests will break with a different CDF_PROB_TOP, as well as a different
CDF_PROB_TOP between bools and CDFs.

Change-Id: Ia289c6afd70cbc7dde5ed7a9c7c42f219c29935d

Add clamping to 16/18/20 bits after first pass of the inverse
transform for 8/10/12 bit source espectively, and clampaing to 16
bits after second stage of the inverse transform.

BUG=aomedia:30

Change-Id: I7a68334c77baecb359a4fb3b801fdfd9d5a62f29

Change-Id: I05e77bf0c263ab7b94038f0c812bcec67df4ad24

Change-Id: I66a542da0c7b8fdb9ac2d4efee73aa62414c10f9

With lossless mode, don't change the quantizers.

BUG=aomedia:1196

Change-Id: I1499e6582bfdc9eeac59703c229eb968757ba29a

Change-Id: Ifdf4f9ec5bb7038e6648b4e818cfadab9db924d2

Change-Id: I575411f21899b2b87d0ca79ab9da959d1d6904ea

Change-Id: I9c013f1c7bd1ae5adf58ac884f884ea0c59a382c

Change-Id: Ic9ecd2d4695c24feca109d7e4470b9f1da7a13f0

Change-Id: I7a3bf44323d5a5cbc172210c23428855f7d57db9

This allows dropping the code for non-scaled (VP9) transforms,
who don't have highbitdepth implementations anymore anyway.

Change-Id: I00071e1ca05f642eeba071849bb85b9b8b61c50f

Change-Id: Idb7eaaa5ab9425c1617948e4788d672b95964e5c

This new commit fixes a bug in the previous commit, replacing aligned
256 loads with un-aligned loads. The preivous commit was reverted
due to causing a crash, which is now fixed.

BUG=aomedia:1197

Change-Id: I5c1237ba8d651c5e2a030f669280dbae7bccb863

* Proper re-allocation of seg_map buffer when resolution changes
* Remove undesired resetting of seg_map buffer

* This resolves issues raised in

   https://bugs.chromium.org/p/aomedia/issues/detail?id=1064
   https://bugs.chromium.org/p/aomedia/issues/detail?id=1091

* Disable error_resilient_flag in resize_test as this covers more cases

* Will be enabled by default in separate patch

BUG=aomedia:1064
BUG=aomedia:1091

Change-Id: Ic3f0e47922784c66d240b52d30ba082bdb46dc3b

Includes unit tests for conformance and speed.

SSSE2/SubsampleSpeedTest:
4x4: C time = 868 us, SIMD time = 200 us (~4.3x)
8x8: C time = 3054 us, SIMD time = 293 us (~10x)
16x16: C time = 11887 us, SIMD time = 760 us (~16x)

AVX2/SubsampleSpeedTest:
4x4: C time = 784 us, SIMD time = 205 us (~3.8x)
8x8: C time = 2774 us, SIMD time = 307 us (~9x)
16x16: C time = 10978 us, SIMD time = 489 us (~22x)

Change-Id: I7d5958097542599d57d1a9f9a0a1b809c6a345b0

This reverts commit 9abda591.

Reason for revert: This will only throw a warning on problematic configurations (CONFIG_DEBUG should not be enabled in relase)

Change-Id: I12000e9ee95b9691f233a877fca2073f3566bdb6

When qc = 0, we don't have to calculate distortion.

Change-Id: I6bee3ebf0e475438cbb394289c4de60cc35b79b7

Avoid the potential use of tx_type when txk-sel is on. No coding
stats are changed.

BUG=aomedia:1086

Change-Id: Iae1b83fee4bd55bd480ac49e5fe86377d77a9f1e