Removing tile_rows and tile_columns from VP9Common, removing redundant
constants MIN_TILE_WIDTH and MAX_TILE_WIDTH, changing signature of
vp9_get_tile_n_bits.

Change-Id: I8ff3104a38179b2c6900df965c144c1d6f602267

Cosmetic code changes, renaming 'flat' local var to 'mask', removing
unused field 'blim' from loopfilter_info_n and loop_filter_info structs.

Change-Id: I51e6ccf727fe361ad9a08e29e1201aa7abd4987f

s/frame_rate/framerate/g

Change-Id: I6fc3e088e419c5f46e3a9390dd8a2cad2677a2fc

sse2 functions are provided by vp9_loopfilter_intrin_sse2.c

Change-Id: I40454d26034e3ef915eeaf889937fe7d1b519b9b

Change-Id: I892e76d5ad1443b2ea0d1a7839fe26afe9c68ffb

also remove prototype_loopfilter{,_block} defines from vp9_loopfilter.h

Change-Id: I865ab3f9436c7b1ca166f76630328abf01389405

This commit enables SSE2 implementation of 16x16 inverse ADST/DCT
hybrid transform. The runtime goes from 5742 cycles -> 1821 cycles.
This provides about 1% encoding speed-up at speed 0.

Change-Id: I1678d0988bf30b9efd524877705bbb3645edb17b

This prevents possible float rounding issues between architectures.

Change-Id: I6ed260aebd49feb4cfb5596a5370c44be5f72167

Removing vp9_modelcontext.c.

Change-Id: If2316c58dead2708d9f95b52d9494ba4c1dd7427

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

In the prior code, the above context pointers used for entropy
decoding were initialized on the first frame, and not updated when
the frame size changed. The per-frame code which initializes the
contexts assumes that the contexts are contiguous, leading to an
incomplete initialization when the frame is smaller. This commit
updates the pointers so that the context is contigous whenever
the frame size changes.

Change-Id: I08b53e3a30c8289491212311682ff1b8028cff6c

This is a short term optimization till we work out a decoder
implementation requiring no frame border extension.

Change-Id: I02d15bfde4d926b50a4e58b393d8c4062d1be70f

Removing unused and duplicated constants, moving them from *.h to *.c
if possible.

Change-Id: Ief4d6b984a3ca2e9b38504f0d855ed072cf7133f

Cycle times:
4x4:    151 to  131 cycles (15% faster)
8x8:    334 to  306 cycles (9% faster)
16x16: 1401 to 1368 cycles (2.5% faster)
32x32: 7403 to 7367 cycles (0.5% faster)

Total encode time of first 50 frames of bus @ 1500kbps (speed 0)
goes from 1min39.2 to 1min38.6, i.e. a 0.67% overall speedup.

Change-Id: I799a49460e5e3fcab01725564dd49c629bfe935f

Renaming flatmask4 to flat_mask4, flatmask5 to flat_mask5, hevmask to
hev_mask, filter to filter4, mbfilter to filter8, wide_mbfilter to
filter16.

Change-Id: Ic61c73e59c2eee505257584867aafac99833cea1

Also inline some of the block calculations to assist the compiler to
not do silly things like calculating the same offset (or converting
between raster/transform block offset or block, mi and pixel unit)
many, many, many times.

Cycle times:
4x4:     584 ->   505 cycles (16% faster)
8x8:    1651 ->  1560 cycles (6% faster)
16x16:  7897 ->  7704 cycles (2.5% faster)
32x32: 16096 -> 15852 cycles (1.5% faster)

Overall, this saves about 0.5 seconds (1min49.8 -> 1min49.3) on the
first 50 frames of bus (speed 0) @ 1500kbps, i.e. 0.5% overall.

Change-Id: If3dd62453f8e2ab9d4ee616bc4ea956fb8874b80

Removing unused DEC_DEBUG define and dec_debug variable. Changing function
signatures to eliminate code duplication, renaming function
mb_init_dequantizer to init_dequantizer. Also removing redundant curly
braces, and comments.


Change-Id: Ia56ee1b0be5f24abb0e878581845be8a4773c298

Change the mbfilter Neon code from executing both branches if all
vectors follow only one branch.

The code is about 5% faster when executing only one branch and about
1% slower when executing both branches.

-PS5: Remove local stack space from mbfilter.

Change-Id: I6a23f9b318a9f4568a2718b4c9348db988fe2182

Skip the inverse transform and reconstruction of inter-mode coded
blocks in the rate-distortion optimization loop, when skip_encode_sb
feature is turned on. This provides about 1% speed-up at speed 0,
and 1.5% speed-up at speed 1. No performance change in both settings.

Change-Id: I2932718bf4d007163702b61b16b6ff100cf9d007

This speed feature allows the encoder to largely remove the spatial
dependency between blocks inside a 64x64 superblock, thereby removing
the need to repeatedly encode superblocks per partition type in the
rate-distortion optimization loop.

A major challenge lies in the intra modes tested in the rate-distortion
optimization loop. The subsequent blocks do not have access to the
reconstructed boundary pixels without the intermediate coding steps.
This was resolved by using the original pixels for intra prediction
in the rd loop, followed by an appropriately designed distortion
modeling on the quantization parameters. Experiments also suggested
that the performance impact is more discernible at lower bit-rate/psnr
settings. Hence a quantizer dependent threshold is applied to deactivate
skip of block coding.

For bus_cif at 2000 kbps,
speed 0: runtime 269854ms -> 237774ms (12% speed-up) at 0.05dB
         performance loss.

speed 1: runtime 65312ms  -> 61536ms, (7% speed-up) at 0.04dB
         performance loss.

This operation is currently turned on in settings of speed 1.

Change-Id: Ib689741dfff8dd38365d8c1b92860a3e176f56ec

+ drop 'vp9_'

Change-Id: I4a4bec175316aab8f65c3a23bacc8362399a1357

vp9_mbloop_filter_horizontal_edge_sse2 /
vp9_mbloop_filter_vertical_edge_uv_sse2

Change-Id: I61c4351ef0cce79fa4156a47ddace781f1566869

loop_filter_uvfunction is unused

Change-Id: I37eb3559e9eb2808f1f29dfea429441c94c9df2a

+ light const application
+ limit scope of params to build_lfi

Change-Id: I1031c556aec160a690921dc10e7aa8a707f43ecd

+ drop 'vp9_'

Change-Id: I8c8f1f421f7fc84d2efb80349cd725de3c9bf6bd

frames_since_golden / frames_till_alt_ref_frame are unused.

Change-Id: I348e7689d4d75412cf4de7703d885be942e4a26b

+ VP8_COMMON: place them under CONFIG_POSTPROC_VISUALIZER

Change-Id: I2702d5a3e1134b9c5f7ddc14b4173955a400f2cf

This commit enables SSE2 implementation of 8x8 inverse ADST/DCT
transform. The runtime goes from 1216 cycles -> 266 cycles.
For bus_cif at 2000 kbps, the overall runtime reduces from
253707ms -> 248430ms, i.e., 2% speed-up at speed 0.

Change-Id: Ib0372e17e9162d7b11a10d653b1c8be547c878fb

Change-Id: If9b9ca703b997312df85241a0758d414cfdc5228

Change-Id: Id9b6ceeddca3f9b34bfada5c499b1e7a2f42c30b

Adding missed parenthesis around boolean expressions. Bitstream is changed.
Regenerating test vectors.

Change-Id: I4cc00b761e9473f92f180a9fc3a0c607f0aaae56

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

Change-Id: Ibb9d5ad606194bc80eab264fad85b31c9dfd8f77

Super basic conversion from the other implementations. Any changes to
one should be trivial to copy over keep in sync.

Change-Id: I1720b4128e0aba4b2779e3761f6494f8a09d3ea8

this was never fleshed out in the context of VP8, for which it was
added. for VP9 it has no meaning.

Change-Id: Iba2ecc026d9e947067b96690245d337e51e26eff

Also removing unused declarations from vp9_entropymode.h file.

Change-Id: Ib9c5826db3584a32f6bb3297a76c522b99d83402

Change-Id: I51f9ac910834f2d7aba2be4f7ffbce597e61a144

Change-Id: I0bc5d2d8c9fec8be18263b0dc2528886bb5b7b61

No bitstream changes. Using MB_MODE_INFO temp variables instead of
MODE_INFO variables. Removing redundant curly braces.

Change-Id: Ib9d1bedfbd8af97ecc722ccf697ea8177bbe287c

Change-Id: I23a75c495ed7ea917d7f312bef0990e20a6b53d9

lg2 -> log2

Change-Id: I0602ddff49e42c9c40c29c084d04b7592b9f8edf