Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243

and some miscellaneous invoke left overs

Change-Id: I63191b1bfd3bea4ce30cceaeb686ec850570fc43

This commit makes sure Y2 entropy coding context is always updated on
every macroblock even there is no Y2 block.

Change-Id: Ie307cfc46526efe55613be39f9f178d2531b56ba

This commit removed a couple of redundant data structures in frame
coding contextsm, mode_context and mode_context_a, and changed to
use vp9_mode_contexts only. The switch of the context for different
frame type now relies on the switch of frame coding context between
lfc and lfc_a. This commit also removed a number of memcpy among
these redundant data structure.

Change-Id: I42e8174bd60f466b0860afc44c1263896471b0f3

Not all segment feature data elements are full-range powers of two, so
there are values that can be encoded that are invalid. Add a new function
to clamp values to the maximum allowed.

Change-Id: Ie47cb80ef2d54292e6b8db9f699c57214a915bc4

This reverts commit b72373de.

Change-Id: Ic1601160e11df1a018ef12da25967cfb5eebd5ba

Support for gyp which doesn't support multiple objects in the same
static library having the same basename.

Change-Id: Ib947eefbaf68f8b177a796d23f875ccdfa6bc9dc

Modified the  mv_pred() fuunction that chooses a centre
point from which to start step searches to use the top
candidate vectors chosen previously.

Some gains (mainly on HD and tested with SB off).
Std_hd 0.874%, YT-hd 0.174%, YT 0.05%, Derf 0.036%

Change-Id: Ie232284f561838b8ecee0e28dcbb07a9cd46cf56

Vp9_sad3x16_sse2() is heavily called in decoder, in which the
unaligned reads consume lots of cpu cycles. When CONFIG_SUBPELREFMV
is off, the unaligned offset is 1. In this situation,
we can adjust the src_ptr to be 4-byte aligned, and then do the
aligned reads. This reduced the reading time significantly. Tests
on 1080p clip showed over 2% decoder performance gain with
CONFIG_SUBPELREFM off.

Change-Id: I953afe3ac5406107933ef49d0b695eafba9a6507

Change-Id: Idcf827d8ae6429ee5b673c3398f838dbeacb4e74

Add a new function vp9_decode_mb_tokens() that handles the switch
between different per-tx-size detokenize functions. Make actual
implementations (vp9_decode_mb_tokens_NxN()) static.

Change-Id: I9e0c4ef410bfa90128a02b472c079a955776816d

It didn't handle rd_thresh == INT_MAX, which means the reference is
unavailable.

Change-Id: Ie6fa8b2577437411db81a8c24e8dcdfd856a0e8d

More cleanup to do after this,  but this is a good chunk of removing rtcd.

Change-Id: I551db75e341a0a85c3ad650df1e9a60dc305681a

Don't declare variables if they only ever have a single value and are
used only as argument to another function call; instead, just hardcode
the value in the function call directly. Split out UV and Y coefficient
loops for clarity. Use xd->block[].qcoeff instead of xd->qcoeff + magic
to remove use of magic offset variables.

Change-Id: I5b17eda1bb666c69c2b7ea957d5525cd78192e33

Don't declare variables if they only ever have a single value and are
used only as argument to another function call; instead, just hardcode
the value in the function call directly. Also remove unneeded brackets
around a code block, and remove the magic offsets 64 and 256 for chroma
values in the coefficient memory block.

Change-Id: I14fc14120a81ea1d6fb862674e8bf8cf6ba3d114

Change-Id: Idde3ab97960eda7022367c1f91a873a479bc9d7b

Also fix the type (TX_SIZE instead of int).

Change-Id: Ib9b3f33835e58a6e758ed5f37bb64543e62b6a86

Change-Id: I1272ae3f0fdfb7ed8eb364ef0c6dd1818d3179d7

Removed the rtcd subpixel invoke functions.

Change-Id: I8b7618bd5813333fac66b2817bdf807616e0fb33

NEEDED FOR BUILD

Change-Id: I56a3e68f15dff480b34de048e30231ba821b1ee2

Used ref_stride.

Change-Id: I31f0a3bb935520f54d11a1d87315627f162ae845

This removes functions that are no longer needed and cleans up some warnings.

Change-Id: I292a4c3694e9c1d68ce99cea390905b198434719

this prevents duplicating the same line of code in each caller of
decode_coefs().

Change-Id: Id7996ad394828bf77ef3d5e03002f577c9f79609

Change-Id: I8d2539ba1046012c948520ac23a1f1978be921c5

Change-Id: I0a36d1efb3bb81a54005b10316550ec67100559e

This prevents the relatively expensive token-from-coefficient lookup
function get_token(), plus a duplicate loop..

Change-Id: Ibecd407b2a91d3593d439ec4646e43fa26d2ff91

Change-Id: I1970f43e2cb5f7d9744c7249099eed226f16f162

Change-Id: I178f250b1a4d41d5a9c1619091f5ae51cebffb10

Change-Id: I18ca713b02a5241bdb20dddcde0216467b55b596

Just like for all other block modes, b_pred tokens can be read together
before starting macroblock reconstruction. This removes special cases
for b_pred in decode_macroblock() and allows to make decode_coefs_4x4()
static in detokenize.c.

While at it, remove the redundant handling and checking of plane_type
and block_index (i) in decode_coefs_4x4(). Since the function is static,
and is called only from decode_mb_tokens_4x4(), we don't need to worry
that the arguments ever go out of sync.

Change-Id: I2d415da0b51b89d0490a6b9e24cc86363c2090f7

Modified code to use const before dq.

Change-Id: I6fa59c2ed9743ded33ad08df70e15c2fe1ae7b99

Change-Id: Icf8ad313c543462e523bff89690e5daa8d49bcc0

Experiments with a larger set of contexts and some
clean up to replace magic numbers regarding the
number of contexts.

The starting values and rate of backwards adaption
are still suspect and based on a small set of tests.
Added forwards adjustment of probabilities.

The net result of adding the new context and forward
update is small compared to the old context from the
legacy find_near function.  (down a little on derf but
up by a similar amount for HD)

HOWEVER.... with the new context and forward update
the impact of disabling the reverse update (which may be
necessary in some use cases to facilitate parallel decoding)
is hugely reduced.

For the old context without forward update, the impact of
turning off reverse update (Experiment was with SB off) was
Derf - 0.9, Yt -1.89, ythd -2.75 and sthd -8.35. The impact was
mainly at low data rates.

With the new context and forward update enabled the impact
for all the test sets was no more than 0.5-1% (again most at
the low end).

Change-Id: Ic751b414c8ce7f7f3ebc6f19a741d774d2b4b556

added additional motion vectors at close neighborhood of a superblock
to the list of candiate motion vectors, and removed a couple that are
further away.

The change helped std-hd set about .8% (all metrics) and smaller gain
for derf set.

Change-Id: Iaa69b98614db43420ed3fd4738d0ca5587b90045

A patch on compound inter-intra prediction.

In compound inter-intra prediction, a new predictor for
16x16 inter coded MBs are obtained by combining a single
inter predictor with a 16x16 intra predictor, in a manner
that the weight varies with distance from the top/left
boundary. The current search strategy is to combine the best
inter mode with the best intra mode obtained independently.

Results so far:

derf +0.31%
yt +0.32%
std-hd +0.35%
hd +0.42%

It is conceivable that the results would improve somewhat
with a more thorough search strategy where all intra modes
are searched given the best mv, or even a joint search for
the best mv and the best intra mode.

Change-Id: I7951f1ed0d6eb31ca32ac24d120f1585bcd8d79b

Modify the decoder to return the ending position of the bool decoder and
use that as the starting position for the next frame.

The constant-space algorithm for parsing the appended frame lengths is
O(n^2), which is a potential DoS concern if n is unbounded. Revisit
the appended lengths for use as partition lengths when multipartition
support is added.

In addition, this allows decoding of raw streams outside of a container
without additional framing information, though it's insufficient to
be able to remux said stream into a container.

Change-Id: I71e801a9c3e37abe559a56a597635b0cbae1934b

duplicate code clean-up and variable name corrections

Change-Id: Ibc4703228e652ec425125de5e7bc038fa46595c5

Change-Id: Ib8f8a66c9fd31e508cdc9caa662192f38433aa3d

Rather than building an object file directory heirarchy matching the
source tree's layout, rename the object files so that the object
file name contains the path in the source file tree. The intent here
is to allow two files in different parts of the source tree to have
the same name and still not collide when put into an ar archive.

Change-Id: Id627737dc95ffc65b738501215f34a995148c5a2

Update decode_coefs() to break when c >= eob, since it's possible that
c starts the loop from 1 and eob is 0. The loop won't terminate in that
case.

Add new get_eob() function to consistently clamp the eob based on the
segment level EOB and the block size. It's possible to code a segment
level EOB that's greater than the block size, and that leads to an
out of bounds access.

Change-Id: I859563b30414615cf1b30dcc2aef8a1de358c42d