Separate the decoding process of 4x4 block based coding (both intra
and inter) from decode_mb and move it into decode_atom_. This allows
to further move the rest per 16x16 block decoding of decode_mb into
decode_sb, and hence eventually deprecating decode_mb when SB8X8 is
enabled.

Change-Id: I678cb8007d8a57b792d7a23020edb0c74fbf4237

Separate the functionality of I4X4_PRED from decode_mb. Use
decode_atom_intra instead, to enable recursive partition of superblock
down to 8x8.

Change-Id: Ifc89a3be82225398954169d0a839abdbbfd8ca3b

Change-Id: Ifd1f7319e398381ca7d55aaacc68c39a1319d651

This doesn't change output, because the argument isn't actually used
ATM. However, we should fix it for consistency.

Change-Id: I7b7326a8e92c0d411c999ec2c781204b516ed53d

Change-Id: I6e787915a92e0abdea86adaa3e1106aa9c165034

This is shorter than fully writing out all cases (52 vs. 84 LOC), and
is easier to extend.

Change-Id: Ic75f86f15cf037543c3dc6234d9ac088205a0ed1

Unify the tokenize_ function and enable configurable block size for
superblock 8x8. We are immigrating the functionalities of
macroblock handles into superblock ones, and eventually will remove
encode_mb and decode_mb. To be continued on detokenize_ module.

Change-Id: I9f81e8c2291082535cf5e0c4b662eb24fb7c8a7f

Output changes slightly because of a minor bug in (at least) the sb32x16
block2above tx16x16 tables that previously existed in vp9_blockd.c.

Change-Id: I624af28ac200a8322d64454cf05c79e9502968cc

Change-Id: I087e08e7909a406b71715b8525c104208daa6889

Access these members from MACROBLOCKD instead.

Change-Id: I7907230dd473ff12ebe182b9280d8b7f12a888c4

This originally was "Removed update_blockd_bmi()".  Now,
this patch removed bmi from blockd and uses the bmi found
in mode_info_context.  Eliminates unnecessary bmi copies between
blockd and mode_info_context.

Change-Id: I287a4972974bb363f49e528daa9b2a2293f4bc76

All members can be referenced from their per-plane counterparts, and
removes assumptions about 24 blocks per macroblock.

Change-Id: I593fb0715e74cd84b48facd1c9b18c3ae1185d4b

Change-Id: I2d32d46002cb92c63050c2b8328865c406103621

Function set_mb_row() and set_mb_col() do similar work and are always
called together, this commit merged them into a single function for
clarity and easy maintainence.  This was a TODO item.

Change-Id: I956bd9ed6afb8b2b0469b20fd8bc893b26f8a0f3

Move rectangular superblock coding out of experimental list.

Change-Id: I96c37547d122330d666a67b4bf577ae54547857f

This commit enables selecting probability models for recursive block
partition information syntax, depending on its above/left partition
information, as well as the current block size. These conditional
probability models are reasonably stationary and consistent across
frames, hence the backward adaptive approach is used to maintain and
update the contextual models.

It achieves coding performance gains (on top of enabling rectangular
block sizes):
derf:   0.242%
yt:     0.391%
hd:     0.376%
stdhd:  0.645%

Change-Id: Ie513d9673337f0d27abd65fb566b711d0844ec2e

Also some further simplification following removal
of top node code.

There is an issue in regards to the shared file vp8cx.h
in regard to the roi_map as this interface assumes that
there are only 4 segments. I have left the value here as
4 for now meaning that the roi_map interface is broken
for VP9.

Note that this change would have been easier if I hadn't
had to search for hard wire instances of the number 4
and <= 3.

Change-Id: Ia8b6deea4be4dbd20deb1656e689dd43a5f190e8

Lookup the data per-plane from the MACROBLOCK struct.

Change-Id: I9253c4d3cf886aa9ab4aeab23a2156bfcf994ede

This commit moves the coeff storage from the MACROBLOCK struct to its
per-plane part. The next commit will remove the coeff member from the
BLOCK structure so that it is consistently accessed per-plane.

Also refactors vp9_sb_block_error_c and vp9_sb_uv_block_error_c to be
variable subsampling aware.

Change-Id: I18c30f87f27c3a012119b6c1970d5fa499804455

This commit enables rectangular block prediction of compound
inter-intra mode. It combines the mb/sb32/sb64 prediction functions
into a unified version with configurable block width and height.
This fixes the enc/dec mismatch of the codebase when
comp-interintra-pred is enabled.

Change-Id: I1d0db2f1f184007802df04fcd12b9dadb3189ff0

Change-Id: I54acef342b8e787e05af0febd7cf0d7d10288383

First in a series of commits making certain MACROBLOCK members
addressable per-plane. This commit also refactors the block subtraction
functions vp9_subtract_b, vp9_subtract_sby_c, etc to be
loops-over-planes and variable subsampling aware.

Change-Id: I371d092b914ae0a495dfd852ea1a3d2467be6ec3

Continue moving framebuffers to per-plane data.

Change-Id: I237e5a998b364c4ec20316e7249206c0bff8631a

This patch does not seem to give any benefits.

Change-Id: I9d2b4091d6af3dfc0875f24db86c01e2de57f8db

Adds an experiment that codes an end-of-orientation symbol
for every eligible zero encountered in scan order.

This cleans out various other sub-experiments that were part
of the origiinal patch, which will be later included if found
useful.

Results are slightly positive on all sets (0.1 - 0.2% range).

Change-Id: I57765c605fefc7fb9d1b57f1b356843602abefaf

First in a series of commits moving the framebuffers pointers to
per-plane data, so that they can be indexed numerically rather than
by name.

Change-Id: I6e0d60fd4d51e6375c384eb7321776564df21775

Removed some unused legacy code relating to GF activity.

Change-Id: I0b0fe90a1a5208aaa81d7393ba6cf75ab412dbda

Remove the unnecessary _s_ from their names, and add a new
vp9_recon_sb() that calls the y and uv variants.

Change-Id: I7ffaa5ff5605a8472cac2a53de8cf889353039a6

This experiment has failed to give much benefit but
does add complexity so deprecated.

Change-Id: Ic7b929ba706390b9907ef0b4f965bd401ca799a4

void __attribute__((noinline)) hi(void) { }
Causes build failure in VS2008

Change-Id: Ie2f2a09d90bd5502c492e4d9f4983532a0edbc01

Change-Id: I183ec5819d4d80966c92db36db75b8c3be0d381d

Use in-place buffers (dst of MACROBLOCKD) for  macroblock prediction.
This makes the macroblock buffer handling consistent with those of
superblock. Remove predictor buffer MACROBLOCKD.

Change-Id: Id1bcd898961097b1e6230c10f0130753a59fc6df

Adds RD integration for 32x16, 16x32, 64x32 and 32x64 rectangular blocks.
Derf almost +0.6%, HD a little over +1.0%, STDHD +1.3%.

Change-Id: Id651fdb6a655fdbb5c47009757e63317acfb88a5

Enable recursive partition information coding from SB64X64 down to
MB16X16. The bit-stream syntax is now supporting rectangular block
sizes. It starts from SB64X64 and recursively describes the partition
type of the current block. If the partition type is PARTITION_NONE,
the block is coded as a single unit; if it is PARTITION_HORZ or
PARTITION_VERT, the block is segmented into two independently coded
rectangular units, with no further partition needed; otherwise, the
block is segmented into 4 square blocks. i.e., PARTITION_SPLIT case,
each can be potentially further partitioned.

Forward adaptive probability modeling is used for the partition
information coding, conditioned on the current block size.

Change-Id: I499365fb547839d555498e3bcc0387d8a3587d87

New names are y_dc_delta_q, uv_dc_delta_q, uv_ac_delta_q.

Change-Id: I4acae1fc23a4697ce2c5a5becb8dc28ef0a4b552

This flag was added to VP8 to allow a mode where MB-level skipping
was not allowed, saving a bit per mb. It was never used in practice,
and hasn't been tested in VP9, so remove it.

Change-Id: Id450ec6904c6d06c1919508e7efc52d05cde5631

Using regular 0 and 1 constants now.

Change-Id: Ie763503cbb727847cc8f1d6506cd6f2ee607f056

Combine superblock inter predictors into a unified function that
allows configurable block width and height. The inter predictions
of block sizes smaller than 16x16 are handled differently. To be
continued on merging them later.

Change-Id: I14075959dd5e221f00c205c99ca35c1c31ef728e

So it is consistent with I8x8_PRED.

Change-Id: Iefa65124b2419690d83e526c611129c0ede29d11

The probabilities derived from these statistics are used in bitstream
writing; therefore, we should only do this when we actually decide to
use macroblock coding (over superblock coding). Derf gains +0.15%.

Change-Id: I196814c070a7c79889590658ce10a6eb07454389