In lossless coding, distortion is always 0. Early exit based on this
metric was incorrect.

This CL also changed to use best_rd instead of distortion as the metric
for easly exit as requested by Jim.

Change-Id: I8ef3e407ac03b4abc3283b273f936a68fad5c2ab

Renames:
  vp9_get_pred_context_comp_inter_inter => vp9_get_reference_mode_context
  vp9_get_pred_prob_comp_inter_inter    => vp9_get_reference_mode_prob

Change-Id: I3bbb69481e6b0c848028667c9269f567f293d3bd

Renaming:
 vp9_get_pred_context_intra_inter => vp9_get_intra_inter_context
 vp9_get_pred_prob_intra_inter    => vp9_get_intra_inter_prob

Change-Id: I2c1affea2e84f4e616137c6df82adb11c7845781

Change-Id: I68d6217db6f67da15380cd59ec5eda0c44da7d34

In the decoder we don't need to save eobs, we can pass eob as an argument.
That's why removing eob arrays from VP9Decompressor and TileWorkerData,
and moving eob pointer from macroblockd_plane to macroblock_plane.

Change-Id: I8eb919acc837acfb3abdd8319af63d1bbca8217a

E.g. disable vertical partioning for 4:2:2. Until we come up with something
better to do with the chroma block size, this prevents an assert error.

Change-Id: I9394fb3f14ec1343abc3ad4769de208e6278f285

We only need qcoeff buffers in the encoder. Reducing TileWorkerData struct
and VP9Decompressor struct sizes by 24K.

Change-Id: Id148868461f7ffa3d3dd634b371503ae9c57e207

The idea here is to allow "in frame" adjustment of the final Q
value used to encode each SB64, using segmentation.

There is also adjustment of the rd mult in regions of overspend.

Activated using aq_mode=2

Change-Id: I2f140cd898c9f877c32cd6d2e667f5e11ada4b1c

List of renames:
  COMPPREDMODE_TYPE      => REFERENCE_MODE
  SINGLE_PREDICTION_ONLY => SINGLE_REFERENCE
  COMP_PREDICTION_ONLY   => COMPOUND_REFERENCE
  HYBRID_PREDICTION      => REFERENCE_MODE_SELECT (like TX_MODE_SELECT)
  NB_PREDICTION_TYPES    => REFERENCE_MODES

Change-Id: If723dabe9435325d0165dcd028142a2c78b417b4

Change-Id: I6c3d47b00acabe7ffba22ffc73741173aa9a0bff

Change-Id: I2a08c00e8576099abc84b6ef05cb3567426e29cf

This function is called from vp9_setup_past_independence() which is called
before the modified piece of code. Moving reset of inter_mode_probs  into
vp9_init_mbmode_probs() for consistency.

Change-Id: Ib188e8798e1fbe15407fd501406761b746fdda95

Since they used in encoder only. This commit also re-order includes
for the files that include vp9_extend.h

Change-Id: I929fc113f2135d3198cd1fc6a17434e5a2f8a459

There was only one function in *.c file, so moving it to vp9_encodemb.c.

Change-Id: I728859d08b3d6c05c33c1c5b21f0ea1d0e0f83af

Change-Id: I57e1ad4bed3487df12893ced77c49093f8755706

Overall change (using dual buffer scheme for superblocks of both inter
and intra modes) reduces speed 2 runtime:
bluesky_1080p at 6000kbps:   263553ms -> 257441ms
riverbed_1080p at 8000kbps:  233230ms -> 225308ms.

Change-Id: Idf8d70f768a4b0d97b2a8506372c57b7b4022119

Moving because q_index is used only by encoder.

Change-Id: I0b96175614ed4fd3d76ee56a0ba36258e1e896f6

This commit enables the dual buffer rate-distortion optimization
and encoding scheme. It stacks the original transform coefficients,
quantized levels, and reconstructed coefficients, in the rate-
distortion optimization search process, hence eliminates the need
to re-run residual generation, forward transform, and quantization
in the encoding stage.

Change-Id: I011bfad3a59a380a869ee552e91dae0394ec492e

Allocate memory space of dual buffer sets that store the coeff, qcoeff,
dqcoeff, and eobs. Connect the pointers of macroblock_plane and
macroblockd_plane to the actual buffer in use accordingly.

Change-Id: I2f0b5f482ca879fae39095013eaf8901db20a5a4

We use {sb, mb, b, ab}_index only inside encoder, so moving them into
appropriate data structure.

Change-Id: Ib5c1036716354d9d321e11a60c1634c1cb8f9716

Change-Id: I6e4a266fdbad1d222eb45d45b67bbb82d091821a

Change-Id: I04c55daef89bca2b85cb7db0850f9b052abc5a7c

Change-Id: I246364bc4270ca13aefb4bc3445bcf102b3170dc

Removed three members from the VP9_COMP data structure:
inter_zz_count, gf_bad_count, gf_update_recommended.

These were part of the VP8 real-time mode implementation
that was removed from the initial VP9 codecbase.

Change-Id: I866b083b88ef02c74837277d50ce532ca88492f3

Change-Id: I9781a62bc1a4cd9176554d1271d87dbcafda9cb0

Change-Id: I5b17f40e515c4bcf9ebef5380270a214af4e0115

replaces use of cur_tile_mi_(row|col)_(start|end) by VP9_COMMON, making
it less stateful and more reusable for parallel tile decoding

Change-Id: I1df09382b4567a0e5f4434825d47c79afe2399be

Change-Id: If5cea3d389bb1135ee490d273e57cc2c43325d01

Change-Id: I969406574c6658936e9f6db5752f1b295025aab5

this will allow for separate storage to be used in tile decoding

Change-Id: I025595d83118bdc82a545dae69bc6602e8d2a6e3

update_partition_context / partition_plane_context: this will allow for
separate storage to be used in tile decoding

Change-Id: Ie0bc393531ab7e9d2ce35c95111849b294aad4ed

Change-Id: I6e0e19231a48364c1de7dfab730b121ab227f111

Change-Id: I1868fb75ed88bfa65c1c2ca24677d65f2894d713

For consistency with idct function names. Renames:
  vp9_short_fdct4x4  -> vp9_fdct4x4
  vp9_short_walsh4x4 -> vp9_fwht4x4

Change-Id: Id15497cc1270acca626447d846f0ce9199770f58

We used set_partition_seg_context() only before calls to:
 1. update_partition_context()
 2. partition_plane_context()

Moving these functions from vp9_blockd.h to vp9_onyxc_int.h and
inlining  set_partition_seg_context into them. After that it is not
necessary to have {above, left}_seg_context fields in MACROBLOCKD struture,
so removing them also.

Change-Id: I4723f59e1c8f3788432b7f51185d8d747b3a97f9

This commit makes the buffer allocation of zcoeff_blk array in
pick_mode_context block size aware. It calculates the number of
4x4 blocks in the partition and assigns the memory space accordingly.
This process (and the uninitialization) is done once for each encoding
pass. It allows memory copy of smaller buffer when possible.

For football at 600kbps, the runtimes improve by about 1%:
speed 1, 45961ms -> 45472ms
speed 2, 23863ms -> 23598ms

Change-Id: Id2ca24906fa89f46fa5fe742ec4b8efc2a61f877

That makes decoder and encoder (only bitstream writing part) a little bit
simpler and faster. Moving get_sb_index() function to the encoder.

Change-Id: Ie91aaeefd69c84b085948267b33556a7666c6278

In deciding the transform size for a given block in a given TX_MODE.

Change-Id: I1467da09853e69cd320695a24c04e19a2f3d04fb

Also avoid using floating-point operations when adaptive quantization is
disabled.

Change-Id: I54936d7afb661df049cdb3ecd246d04ac2a9d8d3

This should make parallel tiles decoding easier to implement.

Change-Id: I6226456dd11f275fa991e4a7a930549da6675915