Renaming Y1dequant to y_dequant, UVdequant to uv_dequant, QIndex to qindex.

Change-Id: I1c356e5f886deb3f8807dc212de9799b55b09d58

Removing several commented code blocks, using uint32_t and uint8_t types,
removing redundant code.

Change-Id: Ifc5cc9863897925ea2a7cab4f7309ccf28d80bfe

Clamp only the motion vectors inferred from neighboring reference
macroblocks. The motion vectors obtained through motion search in
NEWMV mode are constrained during the search process, which allows
a relatively larger referencing region than the inferred mvs.
Hence further clamping the best mv provided by the motion search may
affect the efficacy of NEWMV mode.

Synchronized the decoding process. The decoded mvs in NEWMV modes
should be guaranteed to fit in the effective range. Put a mv range
clamping function there for security purpose.

This improves the coding performance of high motion sequences, e.g.,
derf set:
foreman 0.233%
husky   0.175%
icd     0.135%
mother_daughter 0.337%
pamphlet        0.561%

stdhd set:
blue_sky 0.408%
city     0.455%
also saw sunflower goes down by -0.469%.

Change-Id: I3fcbba669e56dab779857a8126a91b926e899cb5

0.15% quality increase on derf, particularly noticeable on hard clips
at the higher bitrate end.

Change-Id: I02415a96eb9bbc361cba923069625fae71844bc9

* changes:
  Move EOB to per-plane data
  Move qcoeff, dqcoeff from BLOCKD to per-plane data

This is a VP8-only feature (part of profile 3) that is unsupported in
VP9.

Change-Id: I78016eede8d9c834d44d4c517f3e8b8fc2a378b1

Change-Id: If7fa8aea02f26c2c2bb5daf4e65c3e661d7031ca

Change-Id: Ic219e7878428128e4bb1b3995e8151f92b6bd9c3

It is never used.

Change-Id: If7462357c0498ed05af2645f0c272124381d3aab

Change-Id: Icd6b4322841fefcc86f06645e6aaf1ea42fdfabd

It is never used.

Change-Id: Ibae898c52c766aabf65868611060f9c38fb85b35

Cleaning up the code, removing unused vp9_check_segref_inter function and
useless comments.

Change-Id: Ia0e1a3878dc0f9789cba84aeb507a83d9dccd26b

Change-Id: Id0c2e44daa936f1d6fb76469fd1bd72a4d7c19fd

Continue migrating data from BLOCKD/MACROBLOCKD to the per-plane
structures.

Change-Id: Ibbfa68d6da438d32dcbe8df68245ee28b0a2fa2c

Start grouping data per-plane, as part of refactoring to support
additional planes, and chroma planes with other-than 4:2:0
subsampling.

Change-Id: Idb76a0e23ab239180c818025bae1f36f1608bb23

so it is configurable to faciliate testings

Change-Id: I247b62736c3a08ec2934793959d1ae605a05efa3

Adds back special casing B_PRED mode decoding but protected
within the experimental macro.

Change-Id: If98dc8e56b0ecfb1202540c2b7dfdd070cb81ca0

Change-Id: I3a1e9cc5c3ed5be01ff75a84a6c82ec02c75af9c

Fixes an indexing bug. Looks like the bug has been there for a while.

Change-Id: I9fc04b0c30754bcb47366ad94a08112925600c4d

Inside decode_sb_4x4 it should be
"get_tx_type_4x4(mb, y_idx * y_size + x_idx)"
but it was
"get_tx_type_4x4(mb, y_idx * (2 * y_size) + x_idx)".
Also making code of decode_sb_4x4, decode_sb_8x8, and decode_sb_16x16
formatted in the same way.

Change-Id: I15c7bef4fb575f7e9da19f953912324cb35d24dd

This function expects real Q values as inputs
not index values.

The use-age her impacts the Q chosen for force key
frames. Though this is a bug fix I have not yet verified
whether following the bug fix the q multiplier value used is
correct.

Change-Id: I49f6da894d90baeb1e86c820c335f02dc80d3b66

Making code more readable in different places.

Change-Id: Iea92c9a35e64d257ee358879fc04fc926843d52e