This function now has an AVX intrinsics version which is about 80%
faster compared to the C implementation. This provides a 2-4% total
speed-up for encode, depending on encoding parameters. The function
utilizes 3 properties of the cost function lookup table, constructed
in 'cal_nmvjointsadcost' and 'cal_nmvsadcosts'.
For the joint cost:
  - mvjointsadcost[1] == mvjointsadcost[2] == mvjointsadcost[3]
For the component costs:
  - For all i: mvsadcost[0][i] == mvsadcost[1][i]
        (equal per component cost)
  - For all i: mvsadcost[0][i] == mvsadcost[0][-i]
        (Cost function is even)
These must hold, otherwise the AVX version of the function cannot be used.

Change-Id: I6c2791d43022822a9e6ab43cd124a773946d0bdc

* changes:
  variance_test: create fn pointers w/'&' ref
  sixtap_predict_test: create fn pointers w/'&' ref
  sad_test: create fn pointers w/'&' ref

On derflr, +0.1% for VP10; however, -0.03% on VP9.

Change-Id: I09c724232ede74254043d61d3cadc506256af0af

This reverts commit f1342a7b.

This breaks 32-bit builds:
 runtime error: load of misaligned address 0xf72fdd48 for type 'const
__m128i' (vector of 2 'long long' values), which requires 16 byte
alignment

+ _mm_set1_epi64x is incompatible with some versions of visual studio

Change-Id: I6f6fc3c11403344cef78d1c432cdc9147e5c1673

this helps some toolchains (vs9) resolve the type of the parameter

Change-Id: I8c83b86da53b1783cd18c0f765b67ba33da91d72

this helps some toolchains (vs9) resolve the type of the parameter

Change-Id: Ic53b2ed5fbce05c5b5e633b4a4ef9ea75c55360a

Change-Id: I35767a6320943582ee11d737b5f240cea2d01b25

this helps some toolchains (vs9) resolve the type of the parameter

Change-Id: I4acc8a844d1e55b766f66482bd6d32998174d70f

Add threshold/condition on spatial_variance and brightness level.
Modification to normalization of block variance.
Change resolution limit below which we disable noise estimation.

Change-Id: If5be08a26ceda351242d8a58d2f0bc88c0a918f0

-l -> -sl, renamed in:
be3b08da [svc] Temporal svc with two pass rate control

Change-Id: I5a7b179b33d94e20e54825090659156dece928c0

This function now has an AVX intrinsics version which is about 80%
faster compared to the C implementation. This provides a 2-4% total
speed-up for encode, depending on encoding parameters. The function
utilizes 3 properties of the cost function lookup table, constructed
in 'cal_nmvjointsadcost' and 'cal_nmvsadcosts'.
For the joint cost:
  - mvjointsadcost[1] == mvjointsadcost[2] == mvjointsadcost[3]
For the component costs:
  - For all i: mvsadcost[0][i] == mvsadcost[1][i]
        (equal per component cost)
  - For all i: mvsadcost[0][i] == mvsadcost[0][-i]
        (Cost function is even)
These must hold, otherwise the AVX version of the function cannot be used.

Change-Id: I184055b864c5a2dc37b2d8c5c9012eb801e9daf6

Change is only for real-time mode, speed > 5, and non-screen content mode.
Bias is based on block size and motion vector level (motion above some threshold).

Helps to improves stability in background from lightning changes.
PSNR/SSIM metrics on RTC set almost no change/neutral (within +/- 0.1).

Change-Id: I7eac13c1ae10be4ab1f40acc7f9f1df5653ece9d

Only use non-zero threshold(s) for breakout if
the motion level of the current tested mode is low.

Change-Id: I22aae961cc42371b49d3f648560181cc54708502

Change-Id: Id5b8f597fb275395232559fea7bfeb56912b88a1

Current threshold is little too strict.

Change-Id: I99ec1409d095e0c2fd3b7ab398742cabcc05700b

Change-Id: I174f5b41be384894e41b8e2926cbf8fd0f8e21b2

Do memset to fix msan issue due to the access of uninitialized
memory.

BUG=https://code.google.com/p/chromium/issues/detail?id=549155

Change-Id: I02f995ede79e3574e72587cc078df1a0d11af002

Source noise level estimate is also useful for
setting variance encoder parameters (variance thresholds,
qp-delta, mode selection, etc), so allow it to be used also
if denoising is not on.

Change-Id: I4fe23d47607b4e17a35287057f489c29114beed1

Change-Id: Ia59724413c4a4831390119a33d40a7d713b4b69f

This can help increase encoding speed substantially.

Change-Id: Id0c009146e6e74d9365add71c7b10b9a57a84676

Change-Id: I60461f011d1aba0b1eb6584c6940f745221915f4

* changes:
  vp9_dx_iface: move struct defs to separate header
  vp9_decodeframe.h: add missing include

this avoids redefining vpx_codec_vp9_dx, vpx_codec_vp9_dx_algo in
vp9_encoder_parms_get_to_decoder.cc

Change-Id: I3b89e7a62497227ee32419f1a7d30e4c10a13c05

Change-Id: I8ef772a016a79cab88bee8e9739530aa030baaa9

Change-Id: I53d9719dcb81fa83fe3c920a552db5a0f1cacefa