Change-Id: I481d9bb2fa3ec72b6a83d5f04d545ad8013f295c

We could avoid calling clamp_mv2 because it has been already called
inside vp9_find_best_ref_mvs function.

Change-Id: I08edeaf3e11e98c19e67b9711b2523ca5fb1416e

Making code more compact, adding consts, removing redundant arguments,
adding do/while(0) for macros.

Change-Id: Ic9ec0bc58cee0910a5450b7fb8cfbf35fa9d0d16

VP9_COMMON is the right place to segmentatation struct because it has
global segmentation parameters, not something specific to macroblock
processing.

Change-Id: Ib9ada0c06c253996eb3b5f6cccf6a323fbbba708

The macro block mode info context originally contained an
entry for each 16x16 macroblock. In VP9 each entry refers
to an 8x8 region not a macro block, so the naming is misleading.

This first stage clean up changes the names of 3 entries in the
structure to remove the mb_ prefix.

TODO clean up the nomenclature more widely in respect of
mbmi and bmi.

Change-Id: Ia7305c6d0cb805dfe8cdc98dad21338f502e49c6

Removing redundant parenthesis and curly braces. Combining declarations
with initializations. Adding useful intermediate variables instead of
recalculating expressions every time.

Change-Id: I00106f404afd60bfc189905b0fded881684f941a

There was no benefit having this function. For example, inside
read_switchable_filter_type switchable filter context was calculated twice.

Change-Id: I79cd5bf95cbc0f6d8bf91a2e32289e01b18dcff1

Change-Id: I3aae21e88b876d53ecc955260479980ffe04ad8d

This changeset allows to remove vp9_switchable_interp and
vp9_switchable_interp_map arrays and make code much clear. Actually we
still have to use these mapping but only inside read_interp_filter_type and
write_interp_filter_type functions.

Change-Id: I4026c6f8c4acefba6c81421b7bacbaa52cc45f50

Change-Id: I428c4d42212b757112e3acfe5b81314cfbb5fd6b

Removing assign_and_clamp_mv function, making implementation of clamp_mv
and clamp_mv2 more clear and consistent.

Change-Id: Iecd08e1c1bf0379f8314ebe01811f8253f4ade58

Inlining VP9_NMV_UPDATE_PROB constant, consistent local variable names.

Change-Id: I01692501982568fa535882d6b320e3c692f88abb

Passing mi_row and mi_col parameters to functions explicitly. Removing
unused xd argument from scale_mv function.

Change-Id: Icb4c495ec72d26fb066c14470d3ae0b741fbf18a

Using different variable names "allow_hp" and "use_hp" instead of "usehp".

Change-Id: I0cd5996ddeb46bd754473b680a993c0aaf8eb879

Using inter-mode counts instead of inter-mode-tree branch counts inside
FRAME_COUNTS structure.

Change-Id: I60dde13af37d06146d7d15543311c1b5044e9e04

Renaming:
  read_intra_mode_info  -> read_intra_frame_mode_info
  read_inter_mode_info  -> read_inter_frame_mode_info
  read_intra_block_part -> read_intra_block_mode_info
  read_inter_block_part -> read_inter_block_mode_info
  read_ref_frame        -> read_ref_frames
  read_reference_frame  -> read_is_inter_block

Using num_4x4_blocks_{wide, high}_lookup instead of bit shifts.

Change-Id: I83c81573b4ef6f53f2f8d24683895014bebfba61

Now read_inter_mode_info calls read_intra_block_part (renamed from
read_intra_block_modes) or read_inter_block_part (just added).

Change-Id: I541badea6b663e0ae692ec158665efb90ed20c03

Change-Id: Ia6144d77ebed66e0739b62e4d673e26a95aa9550

Counts are separate from frame context. We have several frame contexts but
need only one copy of all counts.

Change-Id: I5279b0321cb450bbea7049adaa9275306a7cef7d

Change-Id: I78d16ee758e1fae0200b746f00031f6d9c6d6ce7

Renamed:
  MAX_MB_SEGMENTS to MAX_SEGMENTS
  MB_SEG_TREE_PROBS to SEG_TREE_PROBS

The minimum unit for segmentation in the segment map
is now 8x8 so it is misleading to use MB_ as macro-block
traditionally refers to a 16x16 region.

Change-Id: I0b55a6f0426bb46dd13435fcfa5bae0a30a7fa22

Moving common encoder/decoder code to update_tx_counts. Also renaming
vp9_get_pred_probs_tx_size to get_tx_probs2 and adding get_tx_probs to
call vp9_get_pred_context_tx_size inside read_selected_tx_size only once
(twice before).

Change-Id: Ia50247f3893de88ef8e9041b0d44be44a40aaa4d

Moving TX_MODE enum to vp9_enums.h. Renaming txfm_mode variables to
tx_mode.

Change-Id: I459d1af6dd928ce7fccdf8ce30b6f1ca057bef92

Functions: vp9_get_pred_context_switchable_interp,
           vp9_get_pred_context_intra_inter,
           vp9_get_pred_context_single_ref_p1,
           vp9_get_pred_context_single_ref_p2.

Change-Id: I3d6fb8aee23c9062270768e1e6da416dd9bb8f96

Renaming vp9_sb_mv_ref_tree to vp9_inter_mode_tree, and
vp9_sb_mv_ref_encoding_array to vp9_inter_mode_encodings.

Change-Id: I0e91fbf81350d3ec5a2599064c74089b5d06133a

These arrays have constant values (no any updates). Removing two
corresponding memcpy calls. Making a little cleanup in vp9_entropymode.h
as well: removing redundant 'extern' keyword and moving all function
declarations at the end.

Change-Id: Ia16b38b46aec2e2500f5df29c40a297ae241dede

Removing old debug code from vp9_decodemv.c.

Change-Id: I51a6d5fe6a2f6583a1555e692bb1ee5a5b315d6c

Change-Id: Ieffea49eb7a5e5092f21f8694c546aff69b07c6d

Removing VP9_COMMON* argument and adding struct tx_probs* instead of
MACROBLOCKD*.

Change-Id: Idf61074631a90ec51eac22c8dcd977f44ac0757c

Change-Id: I4884cdc2557d25d50c7c4f7e19b1ad8bdb93cd63

Making implementation of vp9_set_pred_flag_{seg_id, mbskip} consistent
with vp9_get_segment_id without using confusing sub(a, b) macro. Passing
mi_row and mi_col to functions explicitly instead of replying on
mb_to_right_edge and mb_to_bottom_edge.

Change-Id: I54c1087dd2ba9036f8ba7eb165b073e807d00435

Change-Id: Id9b6ceeddca3f9b34bfada5c499b1e7a2f42c30b

This function is actually called from set_offsets which is called right
before vp9_read_mode_info.

Change-Id: Ibb9d5ad606194bc80eab264fad85b31c9dfd8f77

Also removing unused declarations from vp9_entropymode.h file.

Change-Id: Ib9c5826db3584a32f6bb3297a76c522b99d83402

Change-Id: I51f9ac910834f2d7aba2be4f7ffbce597e61a144

Removing redundant function arguments and curly braces.

Change-Id: I46e02561f33fe02e84a3b19756f03b9504bd6a1b

Adding segmentation struct to vp9_seg_common.h. Struct members are from
macroblockd and VP9Common structs. Moving segmentation related constants
and enums to vp9_seg_common.h.

Change-Id: I23fabc33f11a359249f5f80d161daf569d02ec03

Removes SEG_ID
Removes MBSKIP
Removes SWITCHABLE_INTERP
Removes INTRA_INTER
Removes COMP_INTER_INTER
Removes COMP_REF_P
Removes SINGLE_REF_P1
Removes SINGLE_REF_P2
Removes TX_SIZE

Change-Id: Ie4520ae1f65c8cac312432c0616cc80dea5bf34b

mi is xd->mode_info_context

Change-Id: Ib101be922b695205ec57b5ce1828ba19bde5b41c

Change-Id: I851af23c787a2d3637d84244b9f75063cbf782f1