Added disable_splitmv feature at other speed levels. For speed 3 or
above, always turn it on.

Change-Id: Ibb36f0a7ef12a34b4f8d0f9cb6193eab43b34360

Change-Id: I340d06e3bc32c78358654496503cccd4196cbe2e

+0.2% SSIM and glbPSNR on derfraw300.

Change-Id: I9cba0bca55e606a22f557c7732b064f738efe84d

Current partition checking starts from small sizes, and then goes up
to large sizes. This experiment uses the small partitions' motion
estimation result, which is already available, to speed up the
large partition's motion estimation. We can decide to skip some
patition checkings if they are unlikely choices. We could use the
motion vector(MV) result as current partition's prediction MV, limit
the search range and reference frame.

Current result at speed 1:
psnr loss: 1.19% for stdhd, 0.287% for derf.
speed gain: 14% for sunflower(hd), 11% for akiyo.

Further improvement will be done later.

Change-Id: I5abfd070e9cace2e91e2a0247d1325df313887ab

Call the individually optimized horizontal and vertical functions. This
implementation abuses the temp buffer.

This will be replaced with a custom optimized function.

Over 2x speedup.

Change-Id: I5b908d2a73d264e9810d6022bbff73207a3055dd

Use an estimate based on DC_PRED for intra uv cost
within the rd loop then only do a full uv mode analysis
if an intra mode is chosen.

Significant speed gains in some cases. Currently only
enabled for speed 2 pending speed/quality tests.

Change-Id: Ie851a12400d5483bce47ec0e3ccb8516041e91c0

Apply limit if search_method == USE_LARGESTALL
to the range of UV tx sizes searched.

Change-Id: I6db29f0dd237285ffc50d75a37e8b68151ad821c

Removing old debug code from vp9_decodemv.c.

Change-Id: I51a6d5fe6a2f6583a1555e692bb1ee5a5b315d6c

This commit makes the encoder to perform motion search only once
per reference frame type for each 4x4/4x8/8x4 block. For bus_cif
at 2000 kbps, the runtime goes from 253812ms -> 217817ms
(14% speed-up) for speed 0.

Change-Id: I5f17599ccc8cfaf93ccb4f98fcb6008af6d79e92

Change-Id: I2bce6f381fef0729b4dd5eb09ccb609f2eddd7ef

Change-Id: I4884cdc2557d25d50c7c4f7e19b1ad8bdb93cd63

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

* changes:
  delete vp9_loopfilter_sse2.asm
  vp9_loopfilter_intrin_sse2: cosmetics: fix indent
  delete x86/vp9_loopfilter_x86.h
  vp9_loopfilter_intrin_sse2: make some funcs static
  vp9_loopfilter_intrin_sse2: remove unused uv funcs
  vp9_loopfilter: remove uv function typedef
  filter_block_plane: reuse some constants
  vp9_loopfilter.c: make some functions static

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