+ remove commented out fields from YV12_BUFFER_CONFIG

Change-Id: Ie4f25df9ccae07e7b8fd31599cb4164949cf6f8f

Commit 70d9664f removed 'int i' required by a4f30a50.

Change-Id: I4e7e14e9e8532f753e43a57b5bba4589d58e0c32

Only use layered average size if number_temporal_layers > 1.

Also removed unneeded commented-out line, and change some parameter
setting in vpx_temporal_scalable_patterns.c

Change-Id: Ic86e43e7daf0313e8c5a4aba1497299158111955

Change-Id: I84668fa7b9487102e9bde5aea10f5f42efcd042c

Change-Id: Id6e6b5a96c907261abe4348624241b4568707c1d

Change-Id: I18ce84eb50283a05e149ff8211d9dc424d379b4d

Change-Id: I662c480ad49a242e10f1edb0c339ddbe2c6bccf4

Added support for external frame buffers to libvpx's VP9 decoder.
If the external frame buffer functions are set then libvpx will
call the get function whenever it needs a new frame buffer to
decode a frame into. And it will call the release function
whenever there are no more references to that buffer.

Change-Id: Id2934d005f606af6e052fb6db0d5b7c02f567522

Prior to this commit, both encoder and decoder reset mode/mv info from
previous frame in error resilient mode to ensure bitstreams are able to
decode when there is loss of frame in decoder side. However, this is
not necessary. This commit changed to remove the reset, so encoder can
continue to use mode/mv/partition information from previously encoded
frame without affecting decodeablilty under loss of frame.

Change-Id: I0279f862900dc647fb471ae3389770bb1b9f454f

Change-Id: I7aa0f9afbd802a1d8686cad9fc6eae4baa6a53c3

This patch fixes c++ compiler errors.

Change-Id: I4d4b5af3bdaada101d753f3bc19819f5252b4e44

Silence signed/unsigned mismatch warnings by adding casts where
ts_number_layers does not match the sign of the variable to which
it is being compared.

Change-Id: Iab25e18c877d158b2b2b417de7da94669648b2fa

Change-Id: If33a5a12c4025d9b5ec863dfccea7ee70f800665

The functionalities of set_offsets() are subsumed in later
set_partitioning() and rtc_use_partition() functions, hence removed.

Change-Id: Ie514b13cb66c2379f13d0be9b1da4c12ca4581e5

* changes:
  Remove some cases for turning off arf.
  Modified Aq1 and Aq2

Also, removed a TODO and removed speed 1 from the tests.

Change-Id: I4e6b114204b6d42d93fd1902a56eb0c459bad135

Add some rate control metrics.

Change-Id: Ie87c617bbdc31b0324c7c96a042f7bdb8aaa9c7e

Flipping arf on and off too often is hurting some clips.
This change makes no difference for 50-75% of our test
clips but helps some by a big margin. (eg. std-hd crew
by 6% and one of the YT and YT-hd clips by 14%)

Average improvements for 2 pass, speed 2 (psnr,ssim)
are as follows:-

derf  0.165%, 0.210%
yt  1.210%, 1.464%
yt-hd 1.189%, 1.471%
std-hd 1.031%, 0.886%

Change-Id: I121fe66cfb4a62d384b23b484a7d648789641969

Change-Id: I6ec6e072fcd59f9b5fac4ce221a86f9078103ae3