Change-Id: I4ad4061875fa1c8f3801efbcdcb0da47e7c032a5

Originally we need to send the refresh flag and the virtual indices
mapping for the reference frame buffer update for show_existing_frame to
have the BWDREF_FRAME replace the LAST_FRAME.

To remove sending this information, we update the the virtual indices
of the reference frame buffer after the last_bipred_frame is encoded,
and therefore the decoder will receive the updated reference mapping
at the next non-show-existing frame.

As a result, we can save 4 bytes per show-existing frame, and get 0.12,
0.2, and 0.07 BDRATE improvement in lowres, derf, and midref test set
respectively.

Change-Id: I63d41ee6ea99884798f0778b789d2701e2f2d3e0

Change-Id: I523a3b30eb80fc6c6ed83638fdb82cf65c22b2e5

Reject ext-inter compound modes before doing full rate distortion
evaluation, if the corresponding single reference modes had a lower
modelled RD.

ext-inter speedup up to TBD.

Coding performance: TBD

Change-Id: I358bfb879c5ebe5e7afbf6f540cc784f8de14857

Change-Id: Ic11f32db352e1ff7b3ed140654ee1a6016ba516f

This offset value related to the bit depth has been taken care of
inside the function vp10_highbd_block_error.

Change-Id: I58dd8a53380ba4529d59837e56a951bc81a2962e

Change-Id: I22f1299545d4c75d80e72d479be66f66ea142ef1

Also extends quant profiles to include quality range.

Change-Id: Ia96e45b6425e1d42ca61fc401f63d4fd7214e448

Change-Id: I1f6f5b8861c4081b1f4b85c531c5d7ef0cb67bab

Change-Id: I11b717e1652dff440a54f6977527d544b0c5ed29

Change-Id: I043418cde5a2562520ff37cdf81436abc2c9821a

Commit 0d6980d7 removed some use
of the skip_txfm optimization, and the rest are not productive.

The current use of this optimization is only used with --good
and --cpu-used >= 3, however the overhead of this is higher than the
speedup it yields.

Removing this, and subsequently simplifying model_rd_for_sb yields
a net encoder speedup:
--cpu-used=0    ~1.5% faster
--cpu-used=3    ~2.0% faster

The code simplification is also significant.

Change-Id: I1dd668c32de15a2e912c59c42379d0f9e1032ff8

Also use the fp quantizer consistently

lowres: -0.07 BDRATE improvement

Change-Id: I9174f6ad54a74d38541004b99cb3689d0c09be55

This resolves the use of uninitialized value in the first-pass
encoding.

Change-Id: I78bc19214a1bfde5c5641424550cbbe4e52cae99

- Fix the over-writing bug in horizontal filtering as width = 2.
- Fix 10-tap vertical filtering which no longer reads one row of
  pixel above the block.
- Fix 10-tap filter zero padding.
- Encoder speed slow down ~4.0%, compared to,
  81ad9536 Convolution vertical filter SSSE3 optimization

Change-Id: I9bb294a4529300081c29bf284e6bc6eb081cc536

Its old name "ref_mv" is confusing.

Change-Id: I7ac8f346c468bcf3c0e7692582d423fb7a1f113a

Combine it with vp10_pattern_search_sad

Change-Id: I47a3b34dfefad9fc8abd23fcc197f6aea3419873

Should use sub-pel MV instead of full-pixel MV as input parameter
to calc_int_cost_list().

Change-Id: I054d94220a090ca54c8d24df265193ee345cd439

Add the ability to pick between 3 quantization profiles.
The profile is chosen based on the entropy context at the
block level.

Change-Id: Iaea0485798441b7d635962c2563f3a477f582dac

Also reduce number of frames coded for VP10.

Change-Id: I7de908861620b6f4f08513516110fd584660d994

- Use _mm_loadl_epi64 instead of _mm_loadu_si128 for
  uint16_t temp2[4 * 4] buffer.
- Refer to:
  d0de89a1 remove vpx_highbd_1[02]_sub_pixel_variance4x4_sse4_1
BUG=webm:1242

Change-Id: Ieff555c8dd8070937f27f4ec8535b77e1ed5b8b2