* changes:
  Removing unused switchable_interp_count[] field from VP9_COMP.
  Using clamp() function instead of the same raw code.

Fixes assert that fails occasionally on small values of
max-key frame intervals. Also, adds a small change on
updating frames_to_key for frame drops.

Change-Id: Icc2b33b25e3e4ced7e49f8db73e0a887ef9c99e0

Change-Id: I883eb9026b44cb354d5b01c0f1d34ecd71f942e4

Change-Id: I8eda5762728d981ab7757388741b598c665c26ca

Change-Id: Ia2ffca072f5391b277ce1a0c4e5b4ece9ffc6831

Change-Id: Iac5c5aeaef62a4095a60d91285d2c7ad717db0fb

There are three contributors to the definition of how the
display size is set:

(1) display width/height set in the container.
(2) display size (optional in the frame header)
(3) decoded frame size (from the frame header)

This patch modifies the way that vpxdec defines the display
size to give preference to these three criteria in the order
given above. If the container sets a non-zero size, it is
used, otherwise the display size specified in the first
decoded frame is used (if specified), with the raw
decoded frame size of the first frame used as a last resort.

The display size set in frames other than the first is
always ignored in this implementation.

Change-Id: I7e98d817d3f5894d559dd2aeb0a6cb1959b9092b

Change-Id: Id31c0e100d275bd3650eaf5e4b8fe5ce648dbfaf

Change-Id: I50922bb1a689f8515debaa018f850b231c21189f

Change-Id: Ie2a4606daf35b327d6f2ac8d7fd8f6cacf4c5b6a

Change-Id: I091dfaa0ed5b9672eedd46d6097469d0802e24ef

Reference frame masking helped good quality mode to gain about 5% in
encoding speed, this commit enable it for rt mode to gain the speed
improvement.

In addition, this commit move the speed feature setup to a separate
function.

Change-Id: I015e8f78bbb21dd43ae183b9b9355bea2ccda9c5

To reduce pulsing we now allow an arf just before forced key frames
and at the end of a clip or section (which may be stitched to
another clip or section). However, this does not make sense for
key frames arising from real scene cuts.

Change from original patch reflects other recent changes in regard
to alignment of gf/arf and kf groups.

Change-Id: I074a91d1207e9b3e28085af982f6718aa599775f

Further fixes regarding min and max rate.
Bug fixes re kf group bits and last kf group.

Change-Id: Iaafd719d30a489e135a3c55851ce8c632091a436

Change-Id: Ic46da8897d2fb5351e22d6d74805fd9d78c81b32

negative patterns begin with _one_ '-', not one before each pattern.

https://code.google.com/p/googletest/wiki/V1_7_AdvancedGuide#Running_a_Subset_of_the_Tests

Change-Id: I6fd527b31bc2571dfdaa453cbbb57c77b3409563

Introducing calc_psnr() which calculates psnr between two yv12 buffers.
Previously we incorrectly used width/height instead of
crop_width/crop_height to calculate number of samples -- fixed.

Change-Id: Iecda01980555de55ad347e0276e6641c793fa56c

Added comments to explain what the various speed features do, and removed
1 that was clearly unused.

Change-Id: Icd37a536072ddafedbfaefcecbe48979f6d10faf