Makes a set of 16 transforms total, adding all 1D
combinations of ADST and FlipADST, and removng all DST
transforms.

lowres, midres both improve by about 0.1% and hdres by
-0.378% in BDRATE but with fewer transforms that are also
simpler.

Further experiments to continue later.

Change-Id: I7348a4c0e12078fdea5ae3a2d36a89a319ffcc6e

Not getting good results for this feature, will try again
when transforms are frozen.

Change-Id: Id12396786cb9369ad34d0bd845f7beba3a037726

Change-Id: I1d5624fb2f34f87a55613036851034ec7c2d0b76

This commit enables the dynamic motion vector predictor for NEWMV
mode. It allows the codec to select the best motion vector predictor
in a rate-distortion optimization framework for motion vector
residual coding. The compression performance is improved:
lowres  0.14%
midres  0.27%
hdres   0.24%

Change-Id: I6a601c74eb6cb0b71a613336d40363359f2edecd

Simple refactoring to 2 dimensional arrays, in preparation for 128
wide superblocks.

Change-Id: I40d447bd9fbd4f755534ea3cc82fc8f4676cea07

This is in preparation of increasing the superblock size.

Change-Id: I9197e397399fbe8aec1178a45ea0337dd90412d7

Change-Id: I91d280a64d1da77be31004ea91d08d1a70529e42

No performance change observed from borg tests.

Change-Id: I20c232c5dde8cfc84452a4c7185389bd8b812ffd

Change-Id: I52c209a5db1b4a6525c04b70291a08ab5a68c6fe

Merge inverse_transform_block_inter inverse_transform_block_intra
to inverse_transform_block

Change-Id: I0f561830e639e3bf8d831c28a7c784cb0c4c8b09

Change-Id: I71da102550aa7d81961e5f10c71058d5fa8dc6c4

This is a cosmetic patch that removes a great deal of conditional
compilation around CONFIG_VAR_TX from the partition search function.

Change-Id: I9dcef9d4fe6847b793c77bdf565a5cacbdfacd59

Change-Id: I131c4d1216cd156e520b8a91c4438c2d3c6602cb

Change-Id: Id52744e140585c08d047fb395b75ac9318a0b4c3

Change-Id: I6e5d8cff869c7415a924f845c9e6ccaabe2b7a9b

Change-Id: Ib60821487710f6cf06aaa8ddcbdd5487ba1cbe4f

This commit fixes the computation of rate_nocoef for situation when
rate_y is uninitialized at INT_MAX for  x->skip is true.

Change-Id: If3dde4e4ee16667f4408067d3bb3084f916272f1

PSNR test
        lowres  hdres
lowbd   -0.013  0.067
highbd  -0.044  0.039

Change-Id: Iefdb1e966bd004b2027456778185b675e8fb9b81

For experiments to improve compression efficiency of entropy coding.

Change-Id: Idf30dc554bd7eea3a79d21d18515c3e6b8f64b26

Change-Id: I2df3b6ecd35406ee05c2aa4e49be779e73e1bdc6

In preparation for adding more 1D variants with ADST/FlipADST/etc.

BDRATE actually improves by 0.21% on lowres.

Change-Id: I2fa4720c69fe001fa666119a284dfc6b17fffab2

Optimized 2 up-sampled reference prediction functions in high-bit
depth case. This reduced the HBD encoding time by 3%.

Change-Id: I8663ffb5234f5e70168c0fc9ca676309fe8e98f2