Change-Id: I697514efd6024e1b4153bbde58ae5e323b030981

Change-Id: I1f2dbf04a0140a7cc2060b0a9efb4ed8e5270d3d

This is work-in-progress, it implements multiple ARF
encoding behind an experimental flag.

It adds the ability to insert multiple ARF frames into a
single ARF group. This patch implements the reordering
of the coded frames, and implements a fixed-length coding
pattern. It applies a fixed quantizer strategy based on
where the frame is in the coding sequence.

Further work to modify the rate control strategy is
ongoing and will be submitted via a set of future patches.

In this first step, each ARF group is recursively
bisected and an ARF frame added at that position in the
sequence. The recursion continues until ARF frames are
within MIN_GF_INTERVAL frames.

The code sits behind the "multiple-arf" experimental
flag ("CONFIG_MULTIPLE_ARF"). The experimental flag
"oneshotq" ("CONFIG_ONESHOTQ") also needs to be enabled
for this patch to work correctly.

Change-Id: Ie473b05ebb43ac473c0cfb659b2b8042823085e2

Removing redundant code.

Change-Id: I71bfc40a1fb06d8e3149ed5400aa4dfd87a51aac

Combine superblock inter predictors into a unified function that
allows configurable block width and height. The inter predictions
of block sizes smaller than 16x16 are handled differently. To be
continued on merging them later.

Change-Id: I14075959dd5e221f00c205c99ca35c1c31ef728e

Change-Id: I8fff2216c169c872f7073e66357e400f78a3445d

* changes:
  Move prediction hit counting to update_state().
  Merge loop over all macroblock modes into encode_sb_row().

To match the order of  directional intra prediction modes for larger
blocks, also renamed the i4x4 prediction modes to mirror the larger
variants.

Change-Id: I77cea4d0add6c7758460bf9c7a2fe59aca601f0b

So it is consistent with I8x8_PRED.

Change-Id: Iefa65124b2419690d83e526c611129c0ede29d11

The probabilities derived from these statistics are used in bitstream
writing; therefore, we should only do this when we actually decide to
use macroblock coding (over superblock coding). Derf gains +0.15%.

Change-Id: I196814c070a7c79889590658ce10a6eb07454389

The build predictors now output directly to the dest.  These
copies are no longer required.

Change-Id: I8e91eda6b49993e6c16cfadc705d82a7e80f19b2

The intra predictor supports configurable block sizes. It can handle
intra prediction down to 4x4 sizes, when enabled in BLOCK_SIZE_TYPE.

Change-Id: I7399ec2512393aa98aadda9813ca0c83e19af854

Rename pick_mb_modes to pick_mb_mode, since it now handles only a
single macroblock. This is consistent with pick_sb_mode handling a
single non-macroblock.

Change-Id: I896fdfa06436b2d8c24d6474718cc74420df6b3b

Change-Id: I9951a06dbe4514cc1cf69ff4349c4e12cb4a318c

This patch changes the default with the modecoefprob expt
to use mode-based forward updates with one-node pegged
modeling.

The maximum difference with fully trained tables is now
less that 0.1%.

Change-Id: I06b44322e10c6703f93f3c1d48d973b1136a0618

These functions now are handled through the common superblock code.

Change-Id: Ib6688971bae297896dcec42fae1d3c79af7a611c

This patch will use the dest buffer instead of the
predictor buffer.  This will allow us in future commits
to remove the extra mem copy that occurs in the dequant
functions when eob == 0.  We should also be able to remove
extra params that are passed into the dequant functions.

Change-Id: I7241bc1ab797a430418b1f3a95b5476db7455f6a

* changes:
  tokenize: convert skippable functions
  Add foreach_transformed_block

Change-Id: I3fe8c529ddec658cfa2376cfc05d9c8a5366e978

Change-Id: If69c3d795f87af5cc7bfdfe70ef733c41b4d55c8

Use the common block walker to calculate skippability.

Change-Id: I6721e42f065df237426c91c1d871ec226ba7cdcb