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* changes:
  cosmetics: test.mk: sort source lists
  test.mk: fix test availability
  sad_test: (arm) fix vp9-only build
  cosmetics: sad_test: add a few comments

previously the scale functions would always be include regardless of the
CONFIG_SPATIAL_RESAMPLING setting.

Change-Id: Ifbccf47b20689b5dd61bb3ddccd5c013297b4e05

Change-Id: Iba128039534e16a6e0a8cfe7e58306c4655e9f0d

All escape conditions that remain require knowledge of best_rd or
best_mode_index.

Change-Id: I6f77e4e629cacd54c8149ad0a98d54c8ee4ae249

Change-Id: If41459f8ba186bb47d977b76e2f4bab97078462d

Change-Id: Id1ec41275cc35565e522a1b2ac252ea3ec05638f

+ break long line

Change-Id: I12c1524451a7ce697128801a3328de318cfeabdc

Change-Id: I6e7d6fa557be2af49722d3726991ae7c40f90f4e

- move vp9-only vp9_subtract_test.cc to vp9 block
- move sad_test.cc to a common location

Change-Id: Ie033bbf2c31e7faaae73f2050d657619bfaa3287

Change-Id: I08fa0e90039186cd237001b7e43b1eabe6d326a3

Change-Id: Id5f974172416499ff55b0929e315b12d16ff1b1b

- break the platform sections a bit more visibly
- add #endif comments on long blocks

Change-Id: I8612f19755ea37efd6dac2918f51deee4a2c483e

Improves coding efficiency by about 1%, increases speed by
about 15-20% over exsiting speed 7.

Change-Id: Ibf5b9b5a5c8548e863ce19047c42b579aac21d19

Change-Id: Id56089107b7458aa59f345edc1b49e62eac41035

This commit removes a few arguments that are not used in the
non-RD mode decision.

Change-Id: I0d878bb5a7dba1b34fe0b64afe55bf11b1a9a2d7

Change-Id: Ic0220f6f3ecdc1c15ba3f93f3ef2b435c0f99b98

Added fast HEX search while doing non-rd partition picking to
speed up the encoder.

Borg test(speed 7) on rtc set showed 1.8% overall PSNR loss.
Encoder speedup was 5% - 15% for different rtc clips.

Change-Id: I9c83026eabc70b69fcc747c90369ec60bfa3ca24

In handle_inter_mode, the reference frames are set in refs buffer.
One can use refs buffer directly to avoid redundant fetch.

Change-Id: I811d408cae52dcd5e053dd4bfe69550eb6a2ff56

In non-RD mode decision, assign motion vector INVALID_MV when intra
prediction mode is selected.

Change-Id: I8f6ec39b71e755758f0f698074a2c17d934622ea

Instead of using source variance, this patch uses variance of the
frame difference between the source and the current frame to make
fixed size partition decisions. Also disables adjusting partitioning
if variance based or fixed size partitioning is used.

The latter change improves the speed substantially for speed 6, so
that speed 7 is now less than 3x the speed of speed 6. But speed
6 is 48% better in psnr on the rtc set compared to speed 7.

As compared to speed 5,
speed 6 is -37% in psnr at about 2.5x the speed,
speed 7 is -55% in psnr at about 7x the speed.

Change-Id: If61d80431d3e04ed304ac05832e773cdb2c0a578