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Bug=aomedia:1170

Change-Id: I26a816c3d379ce0428967f2631c5c9282bf8f278

Removing the drl dependency on the candidate list length appears
to incur more than 0.3% compression performance loss. Hence remove
this option from opt-ref-mv to allow better latency vs compression
performance trade off.

Change-Id: I6edaeb2d437996082b7bdd6cda7351426c5584b9

Change-Id: I4630d402fccb645ae49da017aa56f5af56e25a11

As loopfilter is not needed for intrabc, clean up related code.

Change-Id: If89d4969a7795cd8993e6add8fd03ef1296699ef

Forward-coded KEY_FRAME, served as a backward reference frame, is
coded as intra-only. The show_existing_frame to show the buffered
forward KEY_FRAME needs to reset the frame context as well as reset
the reference frame buffer.

One binary symbol, namely reset_decoder_state, is added to the frame
header. Whenever a frame is a show_existing_frame, it reads out this
binary symbol value from the bitstream. When this binary symbol is
1, it indicates that the existing frame to show shall be an intra
coded frame and will serve as a KEY_FRAME. The frame context is set
to default and the reference buffer is updated the same way as a
normal KEY_FRAME.

Change-Id: I8b641220689459a104d2f5a03bbdb6820af8f990

Change-Id: I62117adde6f403c02667903a31454b2e3cfea4aa

Set function pointers for AV1 convolve functions.

Change-Id: I9241ef31fcd060a6b76e0cac8e2452b0207df929

This solves a potential integer overflow issue in the coefficient
dequantization. It fixes an enc/dec mismatch issue.

BUG=aomedia:1174

Change-Id: Iea80f7fc2011ed35d2a44e360acd59cd8e85cf42

This is to make them similar to the ones in VP9.

Change-Id: Iaebf625f2dce4f159b8a8615f37003d773ee6450

0.15% gain on the screen_content testset.

BUG=aomedia:998

Change-Id: Ia6484a90b92a00bb0073ecf988b5c164fe8ba84c

Includes unit tests for conformance and speed.

SSE2/CFLAverageSpeedTest:
4x4: C time = 499 us, SIMD time = 156 us (~3.2x)
8x8: C time = 1124 us, SIMD time = 221 us (~5.1x)
16x16: C time = 4228 us, SIMD time = 620 us (~6.8x)
32x32: C time = 8743 us, SIMD time = 2236 us (~3.9x)

AVX2/CFLAverageSpeedTest:
4x4: C time = 482 us, SIMD time = 180 us (~2.7x)
8x8: C time = 1007 us, SIMD time = 227 us (~4.4x)
16x16: C time = 3471 us, SIMD time = 324 us (~11x)
32x32: C time = 8758 us, SIMD time = 1443 us (~6.1x)

Change-Id: Id5ae80142a9764f388c0770ebcff4e46fa3a4dad

Clear compiler warning when high bd is off.

Change-Id: I46e35aa03ea7c50c8b98a75cd6d210b15ec5d9c4

Change-Id: I7c06cf9050ebf3412860473ca16915c0fab580e5

This is a leftover from prior to media source extensions.
Decryption in Chrome doesn't use this path.

Change-Id: I95e07b5c93c380895bf017c7ebca4b2a0ca84949

Change-Id: I9f09a186a1d8aee34acf1d4262c7bbe9917c2709

Use the number of pixels in a block as context, rather than the bsize
itself. The rectangular blocks therefore share the same context, e.g.
BLOCK_8X16 and BLOCK_16X8.

The number of contexts is reduced from 10 to 7.
Almost no coding performance changes.

Change-Id: Ib3241194580c2b93ad0e953957cdc9188393d055

For both KEY_FRAME and non-KEY_FRAME types, pbi->refresh_frame_flag has
been set up accordingly. There is no need to further check on the frame
type before using this flag.

Change-Id: I909d367e2eb01b1b7f9c52f5c9cde5e6750d0de4

Tiny speedup: ~0.48%
No performance change

Change-Id: Icad3c3d25424a6570d1f134aa33d8d015e5b4a10

This is a bitstream simplification.
It will reduce motion vector context model generating latency.

Change-Id: I98a496f5d72402ff51a478d5387a0653fa306dc1

Change-Id: I6d7f2e51cff630acd88033f58931812052987c4b

Any 64-pt transforms only preserves half the coefficients.
Therefore transform domain distortion is no longer valid
for these transform sizes.

BUG=aomedia:1170

Change-Id: Ib99fad5497c766e2b9d2b432640c03cd49c99f50

Change-Id: I508c347f1e2f14cc6d6e36516aedac48a863ce4b

Change-Id: Ia10411ad25ca058d7c7f99638d1820d2fda2a602

The experiment has been adopted and has been enabled by default for a
while and the alternative code path has not been maintained for a long
time, which is now removed.

Change-Id: Iaf22f2969b45b71b2bf67707e131ab4c439b7fa6

Removing code for this option since it is not better than the
DISABLE_VARTX_FOR_CHROMA = 1 option and is more complex.

Change-Id: Id39d23bc6130bbed0ac008c1c76a2ba5aaee4d22

Adds a missing logic in get_vartx_max_txsize() function for
64x16 and 16x64 transforms.

Change-Id: I60bf4f5b49be674f103e30a2e35fa0a43ba1f7e6

Also, add more debug output when PSNR is not within threshold.

Change-Id: I69ff5722b26a1e3f2a74e5d4f4646e92e5d80862

This is required on newer Debian-like systems and seems to be harmless
for older ones.

BUG=aomedia:102
BUG=aomedia:737

Change-Id: I44ec3f7f84447851b50d163839ddba171912e495

Change-Id: Ieb40253c3a0dcb81fc068fa41e23c867bddef22a

Missing one parameter for function get_conv_params_no_round

Change-Id: Ibb4ca39da5a034d99087b88648afd62deb2e28db

Change-Id: Id66b212952e0afe5635abe1ea0bf5096999c87a1

Change-Id: I9cedde11c45d84a9604a588cef3ad1ce9888499e

This commit resolves the broken coding pipeline in ext-tile when
obu is enabled. It fixes the unit test failure due to enc/dec
mismatch.

BUG=aomedia:1143

Change-Id: I7f083c90959939048f59540f4427dc94c709a315

the random number generator creates values from [0, range) add 1 to all
and make hev more realistic by mirroring its calculation of level >> 4,
i.e., [0, 3]

cherry-picked from libvpx:
5203b40a2 lpf_test: correct threshold ranges

Change-Id: I20508cce088386b41b18418b60a94d34b2c88e1e

When lv-map and new-quant are enabled together,
av1_read_coeffs_txb currently does not use the new-quant
lookup table to get the dequantized value, which causes an
encode/decode mismatch. This patch fixes the function to
make lv-map work with new-quant.

Change-Id: I02a5521c3b412ae1c0b960cead7acd14a835c1fe

Change-Id: I9ab059d996e1a033f50ddd5b369ffe3c6635c157

The inverse transform API was changed to pass in an unpadded 32x32
block of coefficients for transforms larger than 32x32, but the
code path actually used for daala_tx was not modified to pad it out
to the full size like the others were.

Change-Id: Ibda5d20a9d839ba41f8a1a0308c414111219da92

Added is_compound in ConvolveParams, so that later we could handle
single ref and compound ref differently in optimization.

Change-Id: If36d1634c5dbd9e6e1962c8017db470bf78738fa

For ext-skip, if a partition block uses the new skip mode,
NEAREST_NEARESTMV is the prediction mode. Other predictions were once
tried out but did not show noticeable coding gains.

Change-Id: I76c0aa0c68fe71f95cc4a09ef0de533e4ceb2f60

This patch modified convolve function prototype. The temp buffer used in
convolve function is already available in conv_params, which doesn't need
to be passed in. Instead, pass in the destination buffer so that the
result can be written in the destination directly for single ref case.
More patch will be followed.

Change-Id: Ib28dc3ba5783a1034c70570d78fa8c8af7cbed7c