Change-Id: Ifa6374e9db5919322733b656e0865f5f19ee6f2c

This patch allows the encoder to skip the
un-neccessary motion search in the first pass. It
calculates the error of the zero motion vector using
the last source frame as reference and skips the
further motion search in the first pass if the error
is small.

The encoding speedup of the first pass for slideshow
videos is over 30%. Borg test shows the overall PSNR
performance remain approximately the same (derf -0.009,
hd 0.387, yt 0.021, stdhd 0.065). Individual clips may
have either PSNR gain or loss. The worst PSNR perfomance
is from yt set, with a PSNR loss of -1.1.

Change-Id: I08b2ab110b695e4689573b2567fa531b6457616e

Add a set_mode_info_seg_skip function that fills the requisite mode info.

Change-Id: I460b1b6845d720d9b09ed5b64df0ea0aac443f62

* Only use ZEROMV, disalowing the intra modes that were previously
  tested.
* Score rate and distortion as zero.

Change-Id: Ifcf99e272095725f11da1dcd26bd0f850683e680

Change-Id: Idccbfe35bebe6f05655bd54da7d8b616b1bffe03

Really just armv7. This is a convenience target intended to make iOS
development with libvpx easier. Xcode projects with default settings
will fail to build when a framework lacks armv7s support when targetting
iOS7.

Change-Id: I7eb80d52eec25501febc0d2c3c0b4ed964b8ed5b

* changes:
  vp9_sub_pixel_*variance*: disable avx2 variants
  vp9_sad*x4d: disable avx2 variants
  vp9_f(dct|ht): disable avx2 variants
  convolve: disable avx2 variants
  fdct8x8_test: add missing avx2 functions
  dct4x4_test: add missing avx2 functions

tests failing under Win32/Win64

+ variance_test: add missing avx2 functions (partially disabled)

Change-Id: I6abc0657ea076379ab9ca65c12678b9ea199849d

tests failing under Win32/Win64

+ sad_test: add missing avx2 functions (disabled)

Change-Id: I8224fba2b270f6039ab1877d71e1e512f0081856

In non frame-parallel decoding, this works the same way as
current decoding scheme. Every time after decoder finish
decoding a frame, it will swap the current mode info pointer
and  previous mode info pointer if the decoded frame needs
to be shown. Both mode info pointer and previous mode info
pointer are from mode info arrays.

In frame-parallel decoding, this will become more complicated
as current frame's mode info pointer will be shared with next
frame as previous mode info pointer. But when one decoder
thread finishes decoding one frame and starts to work on next
available frame, it needs to retain the decoded frame's mode
info pointers until next frame finishes decoding. The mode info
index will serve this purpose. The decoder will use different
buffer in the mode info arrays and use the other buffer to save
previous decoded frame’s mode info.

Change-Id: If11d57d8eb0ee38c8876158e5482177fcb229428

Change-Id: I33a38bb9f46e7ef509bbbf0cfd7bc3ea5072d022

tests failing under Win32/Win64

+ dct16x16_test: add missing avx2 functions (partially disabled)

exercises the forward transforms
no idct/iht implementations, so the c-code is used

Change-Id: I04f64a457fa0828a00f32b5c9fe4f55294f21f61

tests failing under Win32/Win64

Change-Id: I5d49d11911bcda3a832b14efe5500d22597bedcf

exercises the forward transforms
no idct/iht implementations, so the c-code is used

Change-Id: I76b4d1712f10225c1ffa5ffb0ed9a551e68b93b4

exercises the forward transforms
no idct/iht implementations, so the c-code is used

Change-Id: I88c11ac37ac6456de9b4b3ec5da059faf4ad6066

In non-rd real-time mode, choosing smaller transform size in
encoding gives better video quality and good speed gain than
choosing larger transform size. This patch set tx size search
method to ALLOW_8X8, which is better than using 4x4 or other
larger sizes.

Borg tests on rtc set at speed 6 showed significant gain on quality.
PSNR gain: 11.034% and SSIM gain: 15.466%.

The speed gain is 5% - 12% for <720p clips, and 2% - 7% for
720p clips.

Change-Id: If4dc74ed2df359346b059f47fb73b4a0193ec548

avoids some unnecessary work when pulling testdata in a freshly
configured tree

Change-Id: Ib43379b0e1549107f3f1b227afca49a899bcc3ab

execute fix_path once on the source file list rather than once per entry

Change-Id: Ibc8226e391b3028c1b0bcfeab83c790387c9fe23

macho64 x86_64 with:
- -miphoneos-version-min=5.0
- -isysroot from xcrun --sdk iphonesimulator

Change-Id: I1ba183e16d50c93d48f526e2dc43a7a6040741c5

Use of stack frame variable "fps" beyond the lifetime of the function.

fps is sent as a paremeter to output_stats and stored in the
packet holding this encoded frame. This has scope beyond the
lifetime of the calling function.

This reverts commit 3f95a230

Change-Id: Icd8e14b3d7dd733590ada12e619b9dce95b6b0f5