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Coding gain:
lowres  0.18%
midres  0.23%
hdres   0.36%

Change-Id: I044c8afbc481fc55b23d440352941071355b0afb

Change-Id: Ie80b7a14e3505c40b5742793f84aa6fb9d21dab5

Change-Id: Ib47d742d07f13c7c39cea85e228c19ae298baf4a

So it can be used even with aq-mode=3 not enabled.
Also cleans up some code in the places where its used.

No change in behavior.

Change-Id: Ib6b265308dbd483f691200da9a0be4da4b380dbc

fixes crash in 32-bit builds

Change-Id: I149e517c940a8cd43643e213bfbe077b6f579090

The order of the output structure is not currently important.

BUG=https://bugs.chromium.org/p/webm/issues/detail?id=1021

Change-Id: Ibc0006d569675db6c5060c4529f5d9e73f2e96a6

Change-Id: Ie3ec67a83d1877d3deae9c7922b6899d915aa19e

Change-Id: I570c6859d6e18cd94ce4a29068477b937489399c

huisu did in nextgen branch -> please try in vp9

Change-Id: I0ff35db07ac38464e0e2858e303be686c03a5d0e

Removed this todo because of another todo which says none of this code
should exist. It should be integrated into the block by block encode
process as per the decoder.

Change-Id: I076bd15140a060e69c014dd7d7cd07fea260aba3

This is implemented in the decoder already.  Will add a todo for the
encoder.

Change-Id: I5e78c045cb2edb5ba171022aeeb70051a708b916

Change-Id: Ie73d1bbc2c953d010b32097440698f0d060750be

Change-Id: I9c68aa9e72969b0ffbf57eb186380ff666745aeb

For 1 pass vbr mode.
Increase the gf interval for case where average Q is close to
max and high overshoot is detected.

Small increase in overall avg_psnr/sssim metrics (~0.2/0.1%) for ytlive,
but improves the low-end (low bitrate) for several clips (less overshoot).

Change-Id: Ifba40f25b4861b2e0d9832c82d5359a6a3dce9f2

Reset to previous values.

Change-Id: Ia49bafc1d1ec5f657819ffba04d11fd701f315e8

More even spacing near key frame and avoid gf on scene cut
if its close to key frame.

Small increase in metrics for ytlive set (which uses key-period=150).
(~0.2% gain)

Change only affects 1 pass vbr mode.

Change-Id: If1e5a59baf1e0befbaf998522fbc47d94ac5b5df

Change only affects 1 pass vbr.

Use a q value somewhat larger (~6%) than avg_frame_qindex[INTER]
as basis for active_best_quality for inter-frames.
And use the minium of this (avg_frame_qindex) and the active_worst_quality.

This reduces some overshoot in ytlive clips.
Overall small but positive average increase in metrics (up on average ~0.2%).

Change-Id: Icdbaae7872d5675fd38a13c0ec6ce0e2e3b919ce

Change-Id: I71366140799b9b39474b9b459082cdb250bd1905

This was never hooked up for the 32x32_34 case as the neon_asm version
in 3f7c12da, when the intrinsics version was added.

Change-Id: Ic7db4ce5850c637315f9fe9e2de93a4f8cf9e320

Change-Id: Ic6b695442e319f7582a7ee8e52a47ae3e38c7298

Change recursive weight for average_source_sad and
put some constraint on spacing between detected scene-cuts.

Change only affects 1 pass real-time mode.

Change-Id: I1917e748d845e244812d11aec2a9d755372ec182

Fixed warning C4244: '-=' : conversion from 'const double' to 'int',
possible loss of data.

Change-Id: Ic4691346037767b244e7f71248c2f871f92002f3

vpx_idct32x32_1024_add_neon is implemented with instrinsics

Change-Id: I072b18248b97ee2634f06b2751ffa2ced85f8e5b

* changes:
  configure: Detect aarch64 toolchains automatically
  configure: Add an arm64-linux-gcc target configuration

For 1 pass vbr.

Change-Id: I10b7eefc36d65c30844d205e139515bec7fed6af