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Replace the last parameter cos_bit for all 1D inv_txfm funcions with
a macro define, as it is actually always equal to 12. By changing it
to const value, compiler can do further optimization.

Change-Id: If8a9fd99c7ac7eb6f485dafbce22b4803efda62e

Change-Id: I9ab260c5ca31fe7e06bfc0f806893463c5255c45

Change-Id: I5b905d54f7e551b15dac5f9cfd4e6d96e19d52c3

Forgot to put it in the function table.

Change-Id: I86192158f74df84fca6c4a3dbda8b01659f6c9bd

So far the implemented av1_lowbd_fwd_#x#_sse2 provides 10% encoder
speed up on speed 1.

Change-Id: I3dab438c4498059262b065300743ba1519db64b4

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

Work stopped (no current benefit):
Current setup has worse speed (~1%), and is
turned off by default in speed_features.c.
Overall PSNR was ~0.1% worse. See
go/hashBasedTrellis for feature details.

Requires hash_me.

Change-Id: Id12ada82984ea6682e2b6f27534fa57f3a3abb4a

CONFIG_EXT_INTRA_MOD2 was provisionally adopted 16th of January

Change-Id: I11f96cdff29a772813f0cc7cd4cae684e9a07448

Use _mm_set1_epi32 instead of _mm_set_epi16, less instructions produced
by compiler. This patch also removes the duplicate define of the same
function.

Speed test results:
1. Unittest for each test cases in SSE2/AV1LbdInvTxfm2d shows 60%~80%
speedup (except those case with TX_TYPE include iidentity)
2. A brief speed test shows that with this CL, for speed1 encoder speeds up
~3% and decoder speeds up ~1.8%.
(Baseline is 18976fa5)

Change-Id: I2b0e12973fda05a21d6b6eb0f0efe11df6edfb84

Change-Id: I5290f94da6c1a0319357f84b2ec70b4331a0e4af

Change-Id: I60278e399f4f65aa63526e459947e88084f0e889

The experiment is fully adopted now.

Change-Id: I27906d2af4c746ce55aa17f64d1c0ef281e23ab2

Previously, segments using SEG_LVL_REF_FRAME were unable to signal the choices
of GOLDEN = 4, BWDREF = 5, ALTREF2 = 6 and ALTREF = 7, as
seg_feature_data_max[SEG_LVL_REF_FRAME] was set to 3. This patch increases the
value to 7 to account for these options.

BUG=aomedia:951

Change-Id: I9732fa2be96ead2d4b6efdbce34a92e43c7dd04e

Sequences starting with intra-only frames previously resulted in undefined
behaviour with CONFIG_AMVR == 1, as seq_force_integer_mv was only read for
keyframes.

This patch makes changes as follows:

- The syntax element force_screen_content_tools has been added to the
  SequenceHeader struct, and is read and written correspondingly

- seq_force_integer_mv has been renamed to force_integer_mv and moved to the
  SequenceHeader struct, and is read and written correspondingly (provided that
  force_screen_content_tools != 0)

- The conditional reading/writing of allow_screen_content_tools now happens for
  every frame after reading/writing error_resilient_mode (CONFIG_OBU == 1) or
  the sequence header (CONFIG_OBU == 0)

- The conditional reading/writing of cur_frame_force_integer_mv now happens for
  every frame after reading/writing allow_screen_content_tools

BUG=aomedia:1048

Change-Id: I689476fc2fa781dc8ec6fc8da91926cc8cfd3dc2

Removed redundancy code in ref_mv finding.

Change-Id: I4f9d0257a217e764cce820c01d66985778010de7

Clamp_mv_ref happens in multiple places in ref_mv search, which can be
convoluted as reported in issue 1124. This change is to consolidate
the clamping into one place.

Borg test result on lowres set:
avg_psnr:    ovr_psnr:   ssim:
  0.000       0.000      0.001

BUG=aomedia:1377
BUG=aomedia:1124
BUG=aomedia:857

Change-Id: I1649d5b5f37683c9c30e493c6eed13a808ab543a

When the coding block size has one side in length of 64 and above,
scale up the mfmv reference search step size from 8 to 16 along
that direction. The midres coding stats get 0.02% better. Among
all the finished hdres points, no negative results showed up.

BUG=aomedia:1379

Change-Id: I70ab7a9f9d1cf365d8ed1e06dbede307b6bc46ec

Reduce the ref mv search over spatial neighbors from 4 to 3
columns.

BUG=aomedia:1382

Change-Id: I44eb96e2ff4243d720a5f4f68be504995ebd69b6

Change-Id: I94f739840b90688506ebf5a4e7cf355cd6fb75ed

And some cosmetic changes.

Change-Id: Ibbc62bbb023d80ceee83120b4f6eb2a95b1d1a64

Compression changes are of noise level.

BUG=aomedia:1309

Change-Id: Icc0e607e2d16c9041a9b8bab1b267da21ebbddd0

Change-Id: Ife016b5adeeb26071fa20ce6f66b7b52074b36d6

Change-Id: I297b1572e89d5668529855f2436b47af95ea2f80

1) The scan orders of rect txfm will be diagonal with shorter side
first
2) Neighbor is not updated because lv_map doesn't use the neighbor
3) Write a scan test to protect the scan order.
4) Performance on key frame is neutral. Will report the overall
performance by comment later.

BUG=aomedia:1369

Change-Id: I417392f2d9870e035532a2e1cc7cf71dc20ea219

Change-Id: I22693eb22ab4c9cf15396cabbec226e186ad3a7f

Change-Id: I7cf9b4f82bce224cc327947779417dc91bf25184

Reorder intra mode coding so that the luma
direction is below luma intra mode and chroma
direction is below chroma intra mode.

BUG=aomedia:1357

Change-Id: Ie91d04abda7762e59e37e7a4831d206802fe7f2d

This is removed because it was decided to drop support for 4:4:0 Chroma
subsampling in AV1. High bit depth subsampling is added to rtcd so that
this solution is uniform for high and low bit depth.

Change-Id: I9abd6b34164069c0c66881e262ad60026694b948

This patch changes the bit stream slightly to make it impossible to code a loop
restoration unit size that is smaller than the superblock size.

BUG=aomedia:1291

Change-Id: I59637177ccb481d45c2108b0fea624a952e0cd03

Change-Id: Idcc1abaedd6615130fcf1741450fbc5d2f83705c

This is important because only one angle delta
is used for both chroma planes. Using PLANE_TYPE
increases readability and reduces the chance of
people trying to access the angle_delta for
AOM_PLANE_V (i.e. 2).

Change-Id: I26f452e6fcee8bd7fd1e670e73f457d6937e0da9

This will not cause coding stats change.

Change-Id: I0c527a8906f99170cf66d2360654bf65af81c7e0

The speed feature use_upsampled_ref was re-implemented in
https://aomedia-review.googlesource.com/c/aom/+/13647
and so its name was a misnomer.

Hence, change the name to a more appropriate one.

Change-Id: Id66fe76d6fcf720e98d01e4ea530ef52e79d063d

The behavior of this feature was recently changed to do
upscaling/convolve on the fly as needed -- instead of upsampling the
references. So, the name was a misnomer.

Also, as this doesn't require additional memory now, we can always use
it -- irrespective of --cpu_used / frame resolution.

Compression performance:
Overall: -0.15

Netflix_TunnelFlag:          -1.14
Netflix_Aerial:	             -0.66
touchdown_pass:              -0.49
Netflix_SquareAndTimelapse:  -0.40

https://arewecompressedyet.com/?job=with-tx64x64%402018-01-17T19%3A20%3A42.090Z&job=upsampled_ref_remove_limit%402018-01-18T19%3A36%3A53.025Z

Change-Id: Ic3d08fbff645121b2f95b279b8053cad130dab93

BUG=aomedia:1369

Change-Id: Ic3a6922e8a380883b429515ea5f73d31093385e1

Key-frame-only performance
lowres 0.084% gain
midres 0.14% gain
hdres 0.147% gain

BUG=aomedia:1369

Change-Id: Ic7e09583720730f81e87fc5f83b794cc5ce5fb98

The PSNR change is neutral.

BUG=aomedia:1369

Change-Id: Iade17a19580eed788338d5933423ea0235316952

Compression loss on screen_content testset keyframes: 0.3%

BUG=aomedia:1367

Change-Id: Ifb5dd0d5b6362ec3cb29f43bdb6a8af6f38f6fe5

Remove unneeded reference motion vector search function calls.
This does not change the coding stats.

Change-Id: Idbd43634f714e2f18d6e5f0a187721ed8ea35d52

As of commit 2d276b39, reconintra.c cannot compile with CfL disabled,
since the UV_* versions of the intra modes are not defined.

Fix this by moving the UV_PREDICTION_MODE enum outside of its
enclosing #if CONFIG_CFL block. This requires a couple of minor
adjustments elsewhere in the code.

Change-Id: Id8d10ebfa627d8528719b557933929719d863a87

read_palette_mode_info() shouldn't read luma palette info in monochrome mode.

BUG=aomedia:1311

Change-Id: I86f479beac41a3b8725926086f3d21605a003088