This commit enables bit-stream writing and reading for recursive
partition down to block 8x8.

Change-Id: I163cd48d191cc94ead49cbb7fc91374f6bf204e2

Unify the various vp9_optimize_sb functions into one that handles all
transform sizes.

Change-Id: I48b642fbfb3e72cc2e0bcf1d0317a80a80547882

Work-in-progress, not yet ready for review. TODO items:
- bitstream writing (encoder) and reading (decoder)
- decoder reconstruction

Change-Id: I5afb7284e7e0480847b47cd0097cb469433c9081

Moving common code from encoder and decoder to vp9_update_frame_size.

Change-Id: I6ca758b7d05ffd52821bd3f7ad68089da11e4165

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

Moving code from vp9_pack_bitstream to new function encode_segmentation.

Change-Id: I1f1e59a1f038618ad95162b7db4b6f8164850ea8

Incorrect strides caused use of uninitialized stack data.

Change-Id: Ifc12174285311bcf0453987d4283e91141f979ef

Updates the tokenizer to use the common block walker used by the
detokenizer, to support non-4:2:0 and more than 3 planes.

Change-Id: If1854117a9c7c1427349209fa2b3051ce6459dcb

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

This is shorter than fully writing out all cases (55 vs. 84 LOC), and
is easier to extend.

Change-Id: Ibad1bf6463198cad9188c5507181d4b03d393e6d

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

Enable forward model update for partition syntax coding.

Change-Id: If47b423b6d12f34614c57f25d235dc9ba688efc5

Change-Id: I0c57b90055a018d53c32b5e39d8e899a9a4d1c1b

Change-Id: I5429c02246d198eb1b6aadbc3313b26bf3436062

Change-Id: I3a6d601e90e8740b9c26dd0afbfe9d467b75d367

Change-Id: I087e08e7909a406b71715b8525c104208daa6889

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

Change-Id: I7ff2fa72d22c29163eb558981c8193765a8113d9

Access these members from MACROBLOCKD instead.

Change-Id: I7907230dd473ff12ebe182b9280d8b7f12a888c4

The previous commit 15255eef "Move dequant from BLOCKD to per-plane MACROBLOCKD"
removed the vp9_asm_enc_offsets.c file, but didn't update the various secondary
build systems that special case these files. Restore it for now, to ensure any
in-progress changes and builds continue working, to allow time to more carefully
coordinate removal of these files.

Change-Id: I24b78db3fb874d5fbd226548b7366a05ed98e536

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

vp9_dequantize_x86 has only sse2 functions.

vp9_dct_sse2_intrinsics has no namespace collision and can drop
_intrinsics.

vp9_idct_mmx.h is unused.

Change-Id: Ic16e31fb372a1d1e841a62ecb4189fe8f95808ec

There were 4 variants of the quantize loop in vp9_quantize.c, now
there is 1.

Change-Id: Ic853393411214b32d46a6ba53769413bd14e1cac

Change-Id: I552d53f7e7331e9246d8a32d6c6dcc0cfa0cbeb0

Change-Id: I3030d7adac73109aeaa1ecc0f78ac968c092d9aa

These were superseeded by prev_mip.

Change-Id: Ide240475350ce003d68aa990eddc2ee30920663a

Basic assumption: when talking about transform units, use b_; when
talking about macroblock indices, use mb_.

Change-Id: Ifd163f595d4924ff892de4eb0401ccd56dc81884

Access these members from MACROBLOCKD instead.

Change-Id: I2574622e577bb9feede47f6b7ccbb11f3e928ca8

The underlying storage for these buffers is in the per-plane MACROBLOCKD
area, so read it from there directly.

Change-Id: Id6bd835117fdd9dea07db95ad06eff9f12afaaf7

This data can vary per-plane, but not per-block.

Change-Id: I1971b0b2c2e697d2118e38b54ef446e52f63c65a

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

This minor tweak makes segment 0 neutral and used by
key frames and also extends beyond 4 segments.

Change-Id: Ife4744602aba66ac9432746db3113cc5cd88a482