Allow the codec to time the average transform block coefficient
processing for sw speed check.

Change-Id: Ibdaf15ab5b7f1ea8264604cc00ef45e3ae3114c7

Change-Id: I6ce7aea19e3bdeef24d3fe66ac6eba7b8d585f9a

daala_fwd_txfm and daala_inv_txfm export no symbols when
CONFIG_DAALA_TX is disabled. Don't build them.

Change-Id: I0b991248e4151de51c41fc1006ba3065d1b8d36b

In e72a2091 one lps default probability was accidentally changed from 1 to 128 for
non LV_MAP_MULTI mode. This commit reverts that change and make the change only for
LV_MAP_MULTI mode. Also rather than changing to 128, the probability is changed to 10.

Change-Id: Ia8950379c46c59d40ea388fcd0621bbd78c26ede

This experiment has been abandonned for AV1.

Change-Id: I26d10463bdb592fa1fda022a0da19dd6c37159ca

Change-Id: Ib82549c4fae8bca285062084ed7c9c43b84e1660

In read_intrabc_info() and assign_dv().

BUG=aomedia:1037

Change-Id: Ic430147a9a15024d942bde361be0c4a603f812e4

The prediction can be done in 2x2 or 4x4 processing unit, within
which there is no dependency and the computation can be fully
parallelized.
Also turn < 8x8 filter_intra on, and disable it in > 32x32 txbs.

Change-Id: I4f8a3104019cbb35e88f342d97516f81b19152b0

A while ago, I calculated some bounds on the intermediate values inside
the self-guided filter. These bounds turned out to be not quite correct
in one particular instance (when we have a large region of max-value
pixels).

This caused a variable to overflow a uint32_t when decoding 12-bit
streams in the reference decoder, and would force 8/10-bit-only
hardware to use wider buffers than intended in order to match the
reference code.

Fortunately, this can be fixed quite easily, with minimal changes
to the filter output. See comments within the patch for the exact
details.

Also re-instate a Wikipedia link which seems to have gone missing
but which provided useful context for the derivation of the bounds.

Change-Id: I83d4a277a37eff048af9989cccf19202fafb17b5

* Setup and restore the correct number of left/right boundary
  pixels at vertical tile edges, and save them in the correct
  buffers.
  Also fix the restore process in high-bitdepth mode.

* When loop filtering across tiles is enabled, we were previously
  acting inconsistently at horizontal tile borders: The stripe
  just above the boundary would use CDEF pixels from the tile below
  for context, while the stripe just below would use deblocked
  pixels from the stripe above.

  The intended design appears to have been to use CDEF pixels on
  both sides (so we logically have a 64-pixel high stripe, it's just
  split into an 8-pixel and a 56-pixel high stripe in order to keep
  the coefficient sets aligned to tiles)

  Implement that behaviour by disabling the context setup process
  when at a horizontal tile border.

* Pull some common calculations out of
  {setup,restore}_processing_stripe_boundary and into their
  common caller. This allows us to reduce the number of arguments
  going into each function and their internal complexity.

* Add more design comments around stripe boundary setup,
  as there are quite a lot of constraints to be aware of

Change-Id: Ic1586c149b7f764b9c1a711df3f11fb0f130b38a

short-circuit av1_get_tx_scale to always return zero when
CONFIG_DAALA_TX, and remove it from the actual Daala TX toplevel

This has potential overflow consequences for any metrics computation
based on pixels; as such, also force use of the high-bitdepth path in
each of these case.

subset-1:
monty-rest-of-stack-baseline-s1@2017-11-13T00:39:03.881Z ->
monty-rest-of-stack-noshift-s1@2017-11-13T14:37:42.541Z

   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.0030 | -0.0523 |  0.2656 |  -0.0239 | -0.0033 | -0.0029 |     0.0067

objective-1-fast --limit=4:
monty-rest-of-stack-baseline-o1f4@2017-11-13T00:37:06.999Z ->
monty-rest-of-stack-noshift-o1f4@2017-11-13T14:37:16.992Z

   PSNR | PSNR Cb | PSNR Cr | PSNR HVS |    SSIM | MS SSIM | CIEDE 2000
-0.0264 |  0.2303 |  0.0822 |  -0.0109 | -0.0395 | -0.0709 |     0.0538

Change-Id: I57da71861f105dc7a404fa75a75bde573855ef79

Change-Id: Ifd8275b9368139c8f1ab1e60ea09e177edd03bd1

Modified the lightfield encoding example to accommodate HW implementation
requirements. Fixed the encoding scheme, generated a bitstream of a list
of references followed by the surrounding large scale tile coded frames.
All large scale tile coded frames use the same uncompressed frame header
and the same set of frame contexts. This example also wrote out the frame
header and frame contexts while encoding a large scale tile frame and
setting EXT_TILE_DEBUG to 1.

Change-Id: I7cc19099195d0a20335d5c6bfb9f493f1bf3a7b2

In large scale tile coding(namely, large_scale_tile = 1), forced
all frames to generate a bit-exact uncompressed frame header.
This patch modified parameters that could change from one frame to
another.

Change-Id: Ibe72519da0b8a4f5a4ef30a4303ad7d7e4992a65

This does not affect the coding performance or hw throughput. It
prepares for sw decoder speed up.

Change-Id: I5965ba2269e8d843f562b63ccaade7df3429f4f5

Update cdf only when it is allowed.

Change-Id: I95ab08ff4220abdd277a7cd110b69c82364dddcb

Fixes cmake dependency problem with ext_intra_mod, ext_intra, and
intraedge.

Change-Id: Id4349e6d35cafbb183a755be038653f060ffdb2f

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

Change-Id: I6ac62c2825eabcba8f854cfa25c84638d9a73872

These were previously turned off.

Change-Id: I3ba0a18e47b4db1f6347fb592cff78f6bfb2b4fd

All tests are now passing.

Change-Id: Ifc1a0f3ff69f5730722a27eed092395595127e8e

HighBitdepth should be turned on if TXMG is turned on.

Change-Id: If5295d664dce17b7856b8cd675f84d915f25c33d

COMPOUND_ROUND requires CONVOLVE_ROUND to work.   This cl
adds that dependency.

Change-Id: I83922ca3143d8e7a4bbac279790574fb9ba575e6

Replace tabs with spaces.

Change-Id: Idc72b32450255954fca37af68f873239c186202b

LV_MAP and MRC_TX can't be turned on together, if LV_MAP is on
this cl disables MRC_TX.

Change-Id: I3a0e5df292948f309deb19f450dadc6c2a50b95a

This matches the code in read_partition in decodeframe.c and almost
gets rid of the last usage of the "partition_prob" tables which can
now be deleted.

Change-Id: Ibe0e947007d593d8e5f4ab10a38cd920856e566d

This experiment has been abandonned for AV1.

Change-Id: I3501181d096873dec35ea58e4b55530fa76e683f

Remove the previous experiment and now use the same name for a
simpler experiment that only enables 4:1 transforms for 4:1
partitions when ext_partition_types is on, and that which was
previously enabled with the USE_RECT_TX_EXT macro.

Change-Id: Iccc35744bd292abf3c187da6f23b787692d50296

This commit adds support of a separate qmatrix and iqmatrix for each
of the U and V planes. Currently the separate matrices are intialized
to the same ones, then the commit does not have any coding impact
yet.

Change-Id: I5c4045fe1879db262c6ec1567d8d7dfd9a98fbed

Change-Id: Icd0a8c4a9cf47cb93e8329ed0bdc0f79787baaaf

Until a valgrind error coming from the sse4 code is fixed.
This should resolve the valgrin below.

BUG=aomedia:1021

Change-Id: Ic461edb1da017d703a098bf5f9491fa51d0debcc

Change-Id: Ic4e16f30827e2e2e2dd140aee94d309b049dd063

Change-Id: I56a67e75d9f366dff8d92c9185b879365de437a7

The numerator in the mv projection can be negative, e.g. cur_to_bwd
or cur_to_alt2, since either bwdref or altref2 can be a forward
predictive reference, whereas the denominator always stays positive.
The rounding inside mv projection hence should use signed operation.

Change-Id: I42a105835754a002dd31fcfa7c845e4c105ec54f

This is still a rather inefficient black+white encoder, since it carefully
computes some chroma data, but just doesn't write it. However, at least the
bitstream is now monochrome.

Change-Id: Ie8a89bf329e7b41441032fb0d9e9011385bc12ff

To faciliate using intrabc on interframes.

Change-Id: Ibfe376190adf24d15198c5fb548e1050e191a3d6

I think the result is a little easier to reason about (you now talk
about a property of the block, rather than the behaviour that should
be enforced). It also matches the code in read_partition in
decodeframe.c

Change-Id: I13ba06b1504fa153b8b6b60fa14b373483639718

No change to the code, but these #if !CONFIG_NEW_MULTISYMBOL lines are
all in the #else part of an #if CONFIG_NEW_MULTISYMBOL...

Change-Id: Ibf11b1f0711113d9ee52927dcaf243d74e3f9d28

The "src_height" computed in save_deblock_boundary_lines didn't match
the one in save_tile_row_boundary_lines, which meant that the wrapper
function assumed the deblock code was saving some lines and that code
thought that save_cdef_boundary_lines would do it.

This patch fixes up the logic to match, and also completely gets rid
of the lines_to_save variable (after all, bad things would happen if
lines_to_save was 1 because we'll still read both boundary lines
later)

The tile height gets rounded up to a multiple of 8 luma pixels in
save_tile_row_boundary_lines to avoid nasty corner cases. This will
only have any effect for rows at the bottom of the frame (where
av1_get_tile_rect clips to the frame boundary).

BUG=aomedia:1020

Change-Id: I55adb53fa8ba9c7f97fb2fd5b328a3f2f5065464

The br_cdf and lps_cdf with a new 4-state symbol br_cdf.
The br symbol indicates whether the level is k, k+1, k+2 or >k+2
In the latter case, a new br symbol is read. Up to 4 br symbols are
read which will reach level 14 at most. Levels greater than 14 are
golomb coded.

The adapted symbol count is reduced further by this commit.
E.g. for the I-frame of ducks_take_off at cq=12, the number of adapted symbols
is reduced from 4.27M to 3.85M. About 10% reduction.

Gains seems about neutral on a limitied subset.

Change-Id: I294234dbd63fb0fa26aef297a371cba80bd67383

This experiment modifies lv_map to make use of multi symbol.

Replace the nz_map and coeff_base binary CDF with a new multi-symbol
CDF of size 4. The new base_cdf indicates for each coeff if the level
is 0, 1, 2 or >2. Two new special contexts are added to be used for the
last coefficient (the EOB coeff). For the EOB coefficient we already know
that it is non-zero. We use one context for DC EOB and one for AC EOB
(this can potentially be refined more).

The new symbol is read/written by special bitreader/bitwriter functions.
Those functions reduce the probability precision from 15bit to 9bit before
the invocation of the arithmetic coding engine.

The adapted symbol count is significantly reduced by this experiment.
E.g. for the I-frame of ducks_take_off at cq=12, the number of adapted symbols
is reduced from 6.7M to 4.3M.

Change-Id: Ifc3927d81ad044fb9b0733f1e54d713cb71a1572