Also removed obselete comment

Change-Id: Iae1664777d76383639c637ee786e0d50fc45819a

The change is to better reflect the nature of the constants.

Change-Id: Icabac6e9bceefbdb3f03f8218f88ef75943c30fb

INT64_MAX may be assigned as RDCOST when RDCSOST computation is skipped
for speed, this commit to prevent INT64_MAX from being used as real
RDCOST in transform size decision.

Change-Id: I89a945134191bbdea1f1431ade70424ac079eaac

The FrameRate element has been deprecated.

Change-Id: I68ac496e7b33685a100a45d2772e0ff30eb6a811

Improves results a little.

Change-Id: I7bcac02dbb65b43a993445cf557c520197114e5c

After change of MI context storage , mi_8x8[]  pointer may be null for
a block outside of image border. The commit changes to access the data
only after validation of mi_row and mi_col.

Change-Id: I039c4eb486a228ea9d8e5f35ab9ae6717d718bf3

Mathematically the results are the same.

Change-Id: I1c5126cd3ca64e8515ca6331e0989c6f7dd651a0

The probability model used to code prediction mode is conditioned
on the immediate above and left 8x8 blocks' prediction modes. When
the above/left block is coded in sub8x8 mode, we use the prediction
mode of the bottom-right sub8x8 block as the reference to generate
the context.

This commit moves the update of mbmi.mode out of the sub8x8 decoding
loop, hence removing redundant update steps and keeping the bottom-
right block's mode for the decoding process of next blocks.

Change-Id: I1e8d749684d201c1a1151697621efa5d569218b6

Change-Id: I5759f309f94a2b5c1297e6db3735c52986d3ecb2

Change-Id: I62550a7a883115f3ce878710cf3bb039bea54390

39c7b01d accidently reverted the row/col initialization, which broke
mv clamps, which is dependent on the sites for valid motion vector
range. This commit fixed the issue.

Change-Id: Ibcce0226e0360b1ef483fe760b2e33f1af4bf494

Added hiding global symbols for macho32 and macho64 in x86inc.asm.
This was done to fix exported symbol issue in Chrome build.

Change-Id: I08d5c559b985b82f655b537469fee125615e78c0

This commit enables forcing all coefficients zero per transformed
block, when its rate-distortion cost is lower than regular coeff
quantization.

The overall performance improvement (including its parent patch on
calculating rd cost per transformed block) at speed 1:
derf:  0.298%
yt:    0.452%
hd:    0.741%
stdhd: 0.006%

Change-Id: I66005fe0fd7af192c3eba32e02fd6d77952accb5

Adds modeled functions to decide the qp for altref frames in constant q
mode similar to other functions in use in bitrate mode.

Also turns on the constrained quality mode (end-usage=2) option which
was turned off before. Basic testing shows the mode works in principle,
to cap bitrate to the target-bitrate specified, while allowing lower
bitrate depending on the cq-level specified. The mode will need to be
improved over time.

Results for constant quality vs bitrate control mode:
derfraw300/fullderfraw: +3.0% at constant quality over bitrate control.
fullstdhdraw: +4.341%
stdhdraw250: +5.361%

Change-Id: If5027c9ec66c8e88d33e47062c6cb84a07b1cda9

The iOS compiler does not recognize BLE:
bad instruction `BLE idct32_transpose_pair_loop'

Change-Id: I7426694c66bc31caf939a2d5000968da1222c15b

This commit makes the rate-distortion optimization loop evaluate
the rd costs of regular quantization and all zero coeffs, per
transformed block. It improves speed 1 compression performance:

derf: 0.245%
yt:   0.515%

For a large partition that consists multiple transformed blocks,
this allows more flexibility to selectively force a portion of
them coded as all zero coeffs, as well be continued in the next
patches.

Change-Id: I211518be4179747b57375696f017d1160cc91851

Change-Id: I584fe50f73879f6a72fada45714ef80893b6d549

Converting vp9_mv_bit_cost, mv_err_cost, and mvsad_err_cost
functions for now.

Change-Id: I60e3cc20daef773c2adf9a18e30bc85b1c2eb211

Change-Id: Ie47f53e76bc9530475c8c6d24e9b7a5a0189de56

The sub8x8 blocks has its own motion vector reference scheme. The
mv_pred is only used blocks of sizes 8x8 and above, to find the
starting point for motion search.

This change does not change any coding behavior. It makes the
encoding process slightly faster. (0.5% speed-up for local test on
speed 1.)

Change-Id: I746ee6ef0eac19aa3621be014afa12be8d82cbb9

The fake token EOSB may cause invaild memory read in pack token, this
commit reworked the loop to avoid such invalid read.

Change-Id: I37fdfce869b44a7f90003f82a02f84c45472a457

Change-Id: I76f440a917832c02d7a727697b225bac66b99f56