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When experiment LOOPFILTER_LEVEL is on, there're four base filter levels
for each frame. This patch enables one to use one delta or four deltas
to update corresponding filter levels for each superblock in
EXT_DELTA_Q.

1 bit per frame is sent through bitstream to select one or four deltas.
Now, we hard code to use one delta.

Change-Id: I9c61a035064fa81878b0575ad21664e2b22a6a45

Disabled by mistake when removing the ext_inter experiment flag.

Change-Id: I0ff5681f6b77571871f611144975437534f50698

The _ind and _inv mapping tables are not necessary. The CDF tables are
updated with new values converted from the old tables. Performance
impact is small and neutral.

Change-Id: I65845ab3c80f88794abd9ab9e61494af56099c7c

Patch https://aomedia-review.googlesource.com/c/21783
changed things so that error-resilient frames use the default
global motion parameters as a reference, rather than taking
the reference from the previous frame.

This was implemented by clearing out cm->prev_frame->global_motion
when we have an error-resilient frame. Unfortunately, this causes
an issue: if we have an error resilient frame which isn't stored
into any reference slots, followed by a non-error-resilient frame,
then both frames refer to the same prev_frame. The second frame
then delta-codes against cm->prev_frame->global_motion, but
this was reset to the default values by the intervening
error-resilient frame!

In order to allow the above case to work as intended, expand the
default warp parameter set to a full WarpedMotionParams struct,
and use that as the reference for error-resilient frames.

This also allows us to remove set_default_warp_params, as we
can now just copy directly from default_warp_params.

Change-Id: I9645615db2700c1d3810e6e42f4f1da626fcd5e3

The probabilities and CDFs were tuned using aom_entropy_optimizer tool.

midres: -0.062 overall PSNR, -0.100 on SSIM
(but significant gain on Keiba_832x480_30.y4m clip:
-1.331 on overall PSNR and -1.903 on SSIM)
lowres: +0.013 on overall PSNR, -0.062 on SSIM

Change-Id: Ie143a3914ef45939c8744ff6b2ed9f1d0a59353e

Change-Id: I22aed63c6659a7301bccaa994b7374af548db5d1

Change-Id: Ic843e99bd9b79cb9a0a26b95e3a48717ff2ec2a5

These two flags serve essentially the same purpose, so we can
simplify down to just having one flag. Since the
frame_id_numbers_present_flag is older and listed in the
reference-buffer design doc, this is the one we'll keep.

Note that, previously, frame_id_numbers_present_flag was only
sent when CONFIG_OBU was enabled - otherwise it was always set
to 1. On the other hand, use_reference_buffer was always signalled
so that allowed us to disable frame ids even without CONFIG_OBU.

In order to keep the ability to disable frame IDs without
CONFIG_OBU, we send a "real" sequence header (ie, with the same
data as in CONFIG_OBU) in-line within the uncompressed header.
This is sent every keyframe and every intra-only frame, just
as the use_reference_buffer flag was before this patch.

BUG=aomedia:853

Change-Id: I4bb6c7a222aeddfb6d3737a39d10782d32ee2eee

For select_tx_block() in rdopt.c.

Change-Id: Iaac658ab7e7c0b53597f4f781a4fd0f340e9308d

enable single pass CDEF by default since it has been adopted.

Change-Id: I5d19dc49126f6b9bbe490466c853405e100773ad

No need to read any of the compressed header.

BUG=aomedia:846

Change-Id: I1e7c2fc3d22621075cf9420b799ddc8c778c1564

Before LOOPFILTER_LEVEL, there's one filter level,
now we have four filter levels for y plane vertical,
y plane horizontal, u plane and v plane.

This patch enables experiment LOOPFILTER_LEVEL to support per
superblock loop filter level update.

Change-Id: Ib11a1564471eb3076c26e73e5cdf7b5a3045ef97

Resolves mismatch between CMake and configure build configs.

BUG=aomedia:856

Change-Id: I0ffbbec04a2a1b39d70f16e9509bd0cf7618ee88

Resolves mismatch between CMake and configure build configs.

BUG=aomedia:856

Change-Id: Iab9b9b503d45c06a9610cf415b2f2b3c5f14148c

CMake build updates:

- The conflict with warped_motion has been resolved.
- This also resolves a configure build mismatch with
  ncobmc_adapt_weight: warped_motion forcing it to off
  caused the mismatch.

BUG=aomedia:856

Change-Id: Ida2f68676c8a25a63c631dbfe101041409dcafe6

BUG=aomedia:856

Change-Id: I62791bfa1c1b1dba63999ee496d4358fbd247584

BUG=aomedia:856

Change-Id: I053d50850fa892f40876b4862ddd530358ff590d

Since alloc_compressor_data() may be called multiple times before
dealloc_compressor_data() is called

The av1_alloc_txb_buf() called by alloc_compressor_data() should
free the txb_buf before allocating new txb_buf

Change-Id: I0fe15de771e0669ec3521e5aac322f5cedfd67a9

Allow disabling all adopted experiments with a single flag. Simplifies
running comparisons with one enabled at a time.

Change-Id: I1b6d6a07307cff4cf0098e3edca95b885209cd42

Change-Id: Id013e141f78d32d7c5132af07d5e9154c23b0472

Reduce the number of contexts from 10 to 6.

BUG=aomedia:830

Change-Id: If0ec302816975293b7dbd164c867feb66fa76847

This specialisation can't work: it gets the configuration to use from
av1_get_fwd_txfm_64x64_cfg, which specifies a TXFM_TYPE equal to
TXFM_TYPE_DCT64 (reasonable enough), but the code in
av1_fwd_txfm2d_sse4.c only supports TXFM_TYPE_DCT32 and
TXFM_TYPE_ADST32.

BUG=aomedia:852

Change-Id: I37ffa0c8ae520c780105b30df9f627c2290de425

BUG=aomedia:850

Change-Id: I24d9487f13809e92239467403bae0c6c9fcb4c39

Change-Id: I3160b55f19c3d29f2d22a1b106152456f014cf26

Change-Id: I62a8fd48593992d1451b96006efb1b43c048d4ba

Initialize the counter to be zero.

Change-Id: I6752a881eda032d9bcc803f724e53fdf79e95e75

Change-Id: I01c97d6200e3f4d17c6b38095ca7c8c31967a2ce

Change-Id: I751a6719e08d18ea45ee902b783bf3b3c830cc58

Change-Id: Ibdf1de139e8ce63b0be2d0cd1fd098f06739d8cc

Change-Id: I03adc36f5e5f839d23c4f50a864d317d008e30a6

This assert was wrong for tx sizes of 4x4 (and 2x2), and was causing
some failures on AWCY like this one:
https://arewecompressedyet.com/?job=debargha-adopted-0927%402017-09-28T00%3A03%3A48.310Z

Change-Id: Ib75ba7ec6282c700cbe1742b9871a5489eb7e18c

Directly adding libm to the libaom target when building
non-MSVC and non-APPLE targets.

BUG=aomedia:831

Change-Id: Ia1f9cf6b79c4b4d15297969ff9ef4b9831113f4f

Change-Id: Ib5e5346fb4231551739edefdf5ff09628ca71221

This patch removes the restriction that both rect_tx and var_tx must be
 turned off when any daala transform is enabled.
For now, all square transforms are done using daala with the rectangular
 transforms done using AV1.

subset1:

master@2017-09-19T20:41:26.136Z -> daala_tx-dst4@2017-09-19T21:06:47.190Z

   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.0135 | -0.0201 | -0.0049 |  -0.0619 | -0.0144 | -0.0521 |    -0.0264

Change-Id: Icceb3b0c5bcc40d01fd773b20a2a6588179c0ee6

This experiment has been adopted, we can simplify the code
by dropping the associated preprocessor conditionals.

Change-Id: Ic077963f72e8cc2ae9872b58c8a0241988384110

tx_size is transmitted using CDFs now, so these tables are obsolete.

Also, remove a related tx_size_totals table.

Change-Id: I949b46c1c9499bc556e68c77adbdb5aa3288c9a2

BUG=aomedia:39

Change-Id: I89858a8a26547fea4a9d37855a28c0098273316f

BUG=aomedia:851

Change-Id: Ib188f4b640a58c47147cda977a589e527f765a54

This isn't needed anymore, now that the super frame index is
transmitted before the frames.

Change-Id: I8dfb514e59f2df4c2d6697f0ef27fe591fc3b4a2

This experiment was provisionally adopted on 2017-9-12

The ResizeCspTest unit test is disabled when intra_edge is enabled,
as the PSNR of the first frame increases from 77dB to 100dB.
This results in a failure when later frames are compared with the
first one.

Change-Id: I4e9629d9657b01b5d3e64f2dfcfd82e47292c9c6