This function is also used with the U and V planes.

Change-Id: Ib6beae0438790bfb690b3a2bda9c5c8b0e89a9b8

Change-Id: I0fd76937e847f78378a7ab3fa0af00a7c2c52b42

Change-Id: Ie829ee58a55157e6972c63cebe69a5d0a3221349

Change-Id: I6c3d47b00acabe7ffba22ffc73741173aa9a0bff

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

Moves all rate control variables to a separate structure,
removes some currently unused variables,
moves some rate control functions to vp9_ratectrl.c,
and splits the encode_frame_to_data_rate function.

Change-Id: I4ed54c24764b3b6de2dd676484f01473724ab52b

Change-Id: I6a48d1f35ed5fe7a2c7499675b339994c9c3bdf2

Using for loop based on max_tx_size instead of separate checks. Combining
build_coeff_contexts() with update_coef_probs().

Change-Id: Ie335a7db29830677fbc14478a9c190d3c1068665

Modifications are done to reduce the total clock cycle.
Speedup: 1.2

Tested with: park_joy_420_720p50.y4m

Change-Id: Ia36b87e62e2f80a5fadaf5628729aedc80f38f3f

Change-Id: I67d1681c7b17661deb792c5e6a9e2014a73ff9b7

Change-Id: Ibe847000467fe46bf8ce87d8f1ef8f2d5ad1eaf4

Change-Id: I29c0dfcf41a1253d5e2a0d2ff740c0c38ebaa5a2

Change-Id: Iadd771a33c8874f3b774923bca4da3c8fe5429ee

Change-Id: I98d750ee92ff51fb714980418ea28be3b1d0f3c6

Change-Id: I00a5203c8ed76c184d936fccf93d76e7c06773d3

Change-Id: I94cb9e3d910dff74bf90906dd96e3a4e06ebdbe6

There are many places in handle_inter_mode that need to restore the
dst buffer pointers, due to buffer pointer swap and early rd search
breakout. This commit wraps these operations into an inline function
for clean-up.

Change-Id: I0462e8c41c8bc3cd8db07395489cac03d8e5be54

Change-Id: Ifad4b0e6355ce49fcc6f470becc080e8069452ee

As it is used in encoder only.

Change-Id: I5f2a8abbe72bb18cbf6ce36a3dc7e132aeae8ec2

Change-Id: I6f6ba91b1b8b280902b171472314d665aa0baf0b

There is no need to use that function, it is much clear to pass offset
directly to the buffer.

Change-Id: I9026cb0c5094c46f97df5d7f7daeb952f2843b24

Commit a4a5a210 enabled lossless coding, but the commit incorrectly
disabled the usage of skip in encoder even when skip should be used.
This commit make sure that skip is enabled even in lossless mode.

Change-Id: I276954f952c6ac68f17a316ebc72f09001228a08

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

Change-Id: I929fc113f2135d3198cd1fc6a17434e5a2f8a459

Explicitly constrain the upper limit of motion search range (in the
unit of full pixel) to be [-1023, +1023]. It is intended to control
the effective motion search range for 4K sequences.

Change-Id: I645539c70885eec0f155781f439d97d333336e88

Separate the rounding and right shift operations of forward transform
from those of inverse transform. Take out the assertion check from
inverse transforms. If the transform coefficients were constructed to
cause intermediate steps of inverse transform overflow, the codec will
just let it overflow without breaking the decoding flow.

Change-Id: I73cfc3706c4e840fc543a77cbc4cdb0b05d07730

There was only one function in *.c file, so moving it to vp9_encodemb.c.

Change-Id: I728859d08b3d6c05c33c1c5b21f0ea1d0e0f83af

Change-Id: I57e1ad4bed3487df12893ced77c49093f8755706

We only use txfrm_block_to_raster_xy() now.

Change-Id: I4242cd592da99e761041acf9fef1bac3d55a48e1

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: I7d11f1b6075a1115cdc2dcd605225b9c9c9b39c7

The switch to the rate-correction damping factor
in https://gerrit.chromium.org/gerrit/#/c/67536/ was not conditioned on CBR mode.

Change-Id: I2326704e8ac030a4f7b592dd3fedb94c7dd0644d

The step that sums three input samples could potentially cause the
intermediate result go beyond 16 bit limit, when operating as the
second 1-D transform. This commit fixes the issue.

Change-Id: Iaf512449ac2d25ddd8a806d760afab362c62a516

Overall change (using dual buffer scheme for superblocks of both inter
and intra modes) reduces speed 2 runtime:
bluesky_1080p at 6000kbps:   263553ms -> 257441ms
riverbed_1080p at 8000kbps:  233230ms -> 225308ms.

Change-Id: Idf8d70f768a4b0d97b2a8506372c57b7b4022119

Moving because q_index is used only by encoder.

Change-Id: I0b96175614ed4fd3d76ee56a0ba36258e1e896f6

Change-Id: I60e02fa3de930ff1f969687ab5af93dee40d86ad

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

This commit enables the dual buffer rate-distortion optimization
and encoding scheme. It stacks the original transform coefficients,
quantized levels, and reconstructed coefficients, in the rate-
distortion optimization search process, hence eliminates the need
to re-run residual generation, forward transform, and quantization
in the encoding stage.

Change-Id: I011bfad3a59a380a869ee552e91dae0394ec492e

Change-Id: Iaee740ec3bfb2b5328c24f4641c285e5a4a046dc

Allocate memory space of dual buffer sets that store the coeff, qcoeff,
dqcoeff, and eobs. Connect the pointers of macroblock_plane and
macroblockd_plane to the actual buffer in use accordingly.

Change-Id: I2f0b5f482ca879fae39095013eaf8901db20a5a4

Change-Id: I70a0878b23bda0ac3ff8733b4c96d5c636bc551c