Writing custom coeff branch count calculation (which is much clearer) in
adapt_coef_probs() function. Removing vp9_treecoder.c file.

Change-Id: I8880fb7a39996c8bcf6cd0acf9898a8c712ba91f

Also adding BAND_COEFF_CONTEXTS macro to simplify for loop logic.

Change-Id: I12a78a49cf1addf81e6b3fe2a3736ec2b79bd79e

Renaming:
 vp9_get_pred_context_intra_inter => vp9_get_intra_inter_context
 vp9_get_pred_prob_intra_inter    => vp9_get_intra_inter_prob

Change-Id: I2c1affea2e84f4e616137c6df82adb11c7845781

Includes various cleanups.
Streamlines the interfaces so that all rate control state
updates happen in the vp9_rc_postencode_update() function.
This will hopefully make it easier to support multiple
rate control schemes.
Removes some unnecessary code, which in rare cases can casue
a difference in the constrained quality mode output, but
other than that there is no bitstream change yet.

Change-Id: I3198cc37249932feea1e3691c0b2650e7b0c22fc

NUM_YV12_BUFFERS        => FRAME_BUFFERS
ALLOWED_REFS_PER_FRAME  => REFS_PER_FRAME
NUM_REF_FRAMES_LOG2     => REF_FRAMES_LOG2
NUM_REF_FRAMES          => REF_FRAMES
NUM_FRAME_CONTEXTS_LOG2 => FRAME_CONTEXTS_LOG2
NUM_FRAME_CONTEXTS      => FRAME_CONTEXTS

Change-Id: I4e1ada08f25d8fa30fdf03aebe1b1c9df0f87e63

Change-Id: Idfbd87d0a4bebdce7dd587c8446e7fa75b030d91

Removed calls to vp9_update_mode_info_border since
they immediately followed code that initialized the
entire buffer to 0.

Change-Id: Ife06794daa20439a0b607a83a87f88df59afac40

Change-Id: I68d6217db6f67da15380cd59ec5eda0c44da7d34

Buffer 0 would never be decremented, so it could only be used
once.

Change-Id: I605d99fa2a513eadae6a0e230161729880653282

Change-Id: Ia6ef876e3d1e66b2182a9c0bce3fd758691cd381

Change-Id: I40a070c353663e82c59e174d7c92eb84f72ed808

Both single frame and compound inter motion search run with luma
component only. Hence removing the block size mapping therein.

Change-Id: I217488e702432ae9fa0e95bf6f516ebb36b5c79b

Using consistent names (block_idx => block, dqcoeff_ptr => dqcoeff,
pt => ctx), inlining get_tx_eob() call.

Change-Id: I05208e57df81bbb8f25b8274684a48192e9de464

Moving all probability tables from removed file to vp9_entropy.c.

Change-Id: I12846f1da778c3016d96b82e53384d4634883430

The old code would start in a mixed state, where all the reference
frames were pointing to frame buffer 0, but the reference counts
were 0. This is why we needed special code for the first frame.

Change-Id: I734961012917654ff8c0c8b317aac00ab75ded1a

Change-Id: If40b930431766d5179b9769509b5e4ca1628e9cc

The test vector exercises the loopfilter behavior at frame boundary.

blue_sky_1080p25.y4m --good --cpu-used=2 --threads=0 --profile=0
--lag-in-frames=25 --limit=300 --min-q=0 --max-q=63 --cq-level=20
--end-usage=0 --auto-alt-ref=1 -p 2 --kf-max-dist=9999 --kf-min-dist=0
--drop-frame=0 --static-thresh=0 --bias-pct=50 --minsection-pct=0
--maxsection-pct=2000 --arnr-maxframes=7 --arnr-strength=5
--arnr-type=3 --sharpness=0 --undershoot-pct=100 --target-bitrate=6000

Change-Id: Ibd0807395d2fe87f24f81f990369678df3de7c23

The feature is not yet supported.

Change-Id: If46382302d2077b20670391b4a03017045a104f5

Using get_plane_block_size() instead of manipulation with subsampling
values, calculating all required values only once without redundant calls
to b_width_log2().

Change-Id: I00303f2a0926f9c4cb17f34591adda60615f8919

Modifications to the spatial scalable encoder to match
changes made to the scaling code in the decoder.

In particular, the use of a dummy first frame was removed
now that the decoder is able to handle a smaller first
frame.

SvcTest.FirstFrameHasLayers unit test re-enabled.

Change-Id: Ic2e91fbe4eadf95895569947670d36d68abaf458