A future CL will add external frame buffers
differently.

Squash commit of four revert commits:
Revert "Increase required number of external frame buffers"

This reverts commit 9e41d569.

Revert "Add external constants."

This reverts commit bbf53047.

Revert "Add frame buffer lru cache."

This reverts commit fbada948.

Conflicts:
	vpxdec.c

Change-Id: I76fe42419923a6ea6c75d9997cbbf941d73d3005

Revert "Add support to pass in external frame buffers."

This reverts commit 10f89169.

Conflicts:
	test/external_frame_buffer_test.cc
	vp9/common/vp9_alloccommon.c
	vp9/common/vp9_reconinter.c
	vp9/decoder/vp9_decodeframe.c
	vp9/encoder/vp9_onyx_if.c
	vp9/vp9_dx_iface.c
	vpx/vpx_decoder.h
	vpx/vpx_external_frame_buffer.h
	vpx_scale/generic/yv12config.c
	vpxdec.c

Change-Id: I7434cf590f1c852b38569980e4247fad0d939c2e

The change prevent a decoder crash for invalid stream with negative
size.

Change-Id: I7411765f3524c783058fa3d436549be4e75d8969

Encoder's boarder is still 160, while decoder's boarder will be 32.
With on demand and separate boarder buffer for boarder extension.
The decoder's boarder does not need to to 160 anymore.

Change-Id: I93d5aaff15a33a2213e9761eaa37c5f2870747db

When showing a previously decoded frame, we need to
explicitly set the show_frame flag.

For the current frame being decoded this flag is
explicitly set in the frame header.

This should fix WebM Issue 696:
http://code.google.com/p/webm/issues/detail?id=696

Change-Id: I5751a809813f88d2ca6f62c47c3878475ff9ba8d

Adding RefBuffer to simplify reference buffer management. The struct has a
pointer to image data and scale factors relative to the current frame.

Change-Id: If38eb1491ff687cc11428aee339f3e052e2c5d9e

Change-Id: I50c009ff8108bda1c57427f23d63a79c04f7e776

Moving back to scale_factors struct. We don't need anymore x_offset_q4 and
y_offset_q4 because both values are calculated locally inside vp9_scale_mv
function.

Change-Id: I78a2122ba253c428a14558bda0e78ece738d2b5b

Subtracting the pointers promoted to a signed type.

Change-Id: Ied0e822a1756ed7b2f514efafcb6dce4efb9b9d6

Guard against incorrect size values moving *data past data_end.

Check read length against the difference of the buffers.

Change-Id: Ie0b54e2db517fd41a0f3ceb23402ee44839a4739

Change-Id: Id677df4d3dbbed6fdf7319ca6464f19cf32c8176

VP9 decoder can now use frame buffers passed in by the application.

Change-Id: I599527ec85c577f3f5552831d79a693884fafb73

set_offsets() is a right place to configure all mi-related pointers.

Change-Id: I7d2fda72de5fc27e86c6589543b41fa044681dbf

string literal to int within an assert

Change-Id: I0c889256b67a078e6e2a79577f0b7ae084243258

reorder the tiles based on size and their presumed complexity. this
minimizes the cases where the main thread is waiting on a worker to
complete.

Change-Id: Ie80642c6a1d64ece884f41683d23a3708ab38e0c

the border now. Next commit will totally remove the border.

Change-Id: Ic1e1ca9cc34f81c688715b3948689b47df63a151

Change-Id: I83ffed2b1878a35ac35f07f9ee74309adc9c7b11

Change-Id: Ic3bb862e93aedf6a489a33ea6f7e5097d96855ee

Also adding BAND_COEFF_CONTEXTS macro to simplify for loop logic.

Change-Id: I12a78a49cf1addf81e6b3fe2a3736ec2b79bd79e

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

- Disable mode info update in case where current frame is coded
  as "show existing frame".
- Should fix issue 676.

Change-Id: Ibee681850eb307f982da6528d3e31cb94f881c08

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

In the decoder we don't need to save eobs, we can pass eob as an argument.
That's why removing eob arrays from VP9Decompressor and TileWorkerData,
and moving eob pointer from macroblockd_plane to macroblock_plane.

Change-Id: I8eb919acc837acfb3abdd8319af63d1bbca8217a

The difference with the old code is that originally the whole token_cache
was initialized with zeros at the beginning of decode_coefs() function.
Now we set several zero values explicitly with "token_cache[scan[c]] = 0".

Change-Id: I88cc5031f01d13012d1a4491739c36cb44f9401e

We only need qcoeff buffers in the encoder. Reducing TileWorkerData struct
and VP9Decompressor struct sizes by 24K.

Change-Id: Id148868461f7ffa3d3dd634b371503ae9c57e207

Change-Id: I17268af3e0cbf7e5788c3154466e404947c944b3

Renaming treed_read() to consistent vp9_read_tree() and moving it from
deleted vp9_treereader.h to vp9_dboolhuff.h file.

Change-Id: Iedd8655acbe25e4fcf62b79e5a13bdea69b6b004

The decoder will construct inter predictor using lazy border extension,
while the encoder, going with multiple runs of motion search in the rate-
distortion optimization loop for each block, does border extension at
frame level. This commit makes separate the inter predictors for encoder
and decoder, respectively.

Change-Id: Ieca2fecba3a7201a6d64ef9f219e5d91e50559c3

List of renames:
  COMPPREDMODE_TYPE      => REFERENCE_MODE
  SINGLE_PREDICTION_ONLY => SINGLE_REFERENCE
  COMP_PREDICTION_ONLY   => COMPOUND_REFERENCE
  HYBRID_PREDICTION      => REFERENCE_MODE_SELECT (like TX_MODE_SELECT)
  NB_PREDICTION_TYPES    => REFERENCE_MODES

Change-Id: If723dabe9435325d0165dcd028142a2c78b417b4

This commit takes out vp9_extend_frame_borders from
vp9_setup_scale_factors.

The refactoring is for the preparation of the use of lazy border
extension at decoder. This makes it necessary to handle border
extension separately at encoder/decoder. The use of
vp9_extend_frame_borders will be removed, when lazy border extension
is ready.

Change-Id: Ia3baba3d179d5f11eee1634f19b3b319d2a59186

Change-Id: I6a48d1f35ed5fe7a2c7499675b339994c9c3bdf2

This code only updates the token_cache if the result is non0.

Change-Id: Idcabd0b993a926fea9c29dbec134b9c5c4859b40

Change-Id: I98d750ee92ff51fb714980418ea28be3b1d0f3c6

Change-Id: I23fea0a2e85be8373600e3e2dae98d36acde389c

Since they used in encoder only. This commit also re-order includes
for the files that include vp9_extend.h

Change-Id: I929fc113f2135d3198cd1fc6a17434e5a2f8a459

from vp9_decodframe.{c,h} to vp9_decodeframe.{c,h}

Change-Id: I21ac4b14fc90246e3f16bd90c52c12d126d791f8

Change-Id: Ib748eb287520c794631697204da6ebe19523ce95

Change-Id: Ic1367d767705377402ebfec0705f9f553a834400

Simplifies the code by implementing band mapping with static arrays.
A lot of the code complexity introduced in a previous patch
disappears.

Change-Id: Ia3fac36e594fb5ad2d55ae141c58bba4c55c2d28

Change-Id: I4b5106bdc08fd4551339b968c13428a8f43122e2

Implements scan order to band map with arrays in both the encoder
and decoder to remove conditional statements.

Encoding seems to be about 1% faster at speed 0, tested on football.
Decoding seems to be about 0.5-1% faster on a set of 25 videos.

Change-Id: Idb233ca0b9e0efd790e30880642e8717e1c5c8dd