This commit makes use of dual fdct32x32 versions for rate-distortion
optimization loop and encoding process, respectively. The one for
rd loop requires only 16 bits precision for intermediate steps.
The original fdct32x32 that allows higher intermediate precision (18
bits) was retained for the encoding process only.

This allows speed-up for fdct32x32 in the rd loop. No performance
loss observed.

Change-Id: I3237770e39a8f87ed17ae5513c87228533397cc3

The encoding time for bus at CIF goes from 661s to 625s. This commit
also enabled unit test of sad8x4/4x8 in sad_test.cc.

Change-Id: If3d10ebb56bda584bdb69bcf056599d580b12cb1

Change-Id: Ic6b2881d8d495269edbc514b33376ca963798b45

vpxdec stays in a loop when decoding vp9.  This patch is a
quick fix to stop the loop when all data has been decoded.
Eventually we should move the vp9_get_raw_frame() call into
vp8_get_frame().

Change-Id: I3f97b6b4e1fe9ba69f746a29fc54c3304956f661

Change-Id: I9aac140d775b7b4a8727494d15b185b75501a546

Change-Id: I86be1f7421ed49d577cacf405f6e4b0daa85cfdc

Merge experimental branch into master

Change-Id: Ie5f89fb977d28a4d98a8dcdf1c6eb97271a3c1db

Change-Id: Ie648398b82f7311143709f55c0e30ba452f50eff

A corrupt bitstream could refer to a reference frame that has no size.

Change-Id: I56c3b71a9dbb58b498e9969403e289c0e574f948

Previous code indexed using the tile length coded in the bitstream
without checking that the read would be valid.

Change-Id: Ia5047762223a4f80d75016dd546dc2ef18b6887d

Fixes a condition where the address of the mismatching pixels was not
being found/printed.

Change-Id: Ifac5cd3471bc2437448128591eea7c7b87e2d8fe

Don't do the 15 tap filter if there aren't 8 pixels below/right of the
edge.

Change-Id: I62f16437c1d9ba59b6901a5fe71ddb2f472da344

Removes the case of coding prob = 0 for forward updates, since that
is not an allowed probability to code.
Slightly improves efficiency but may not matter in practice.

Change-Id: I3b4caf82e8f0891992f0706d4089cc5a27568dba

This commit enables proper partition type search for the bottom-
right corner blocks.

Change-Id: Id1123d0e4e81eba648ed4f3c0c7ab587e174f650

This commit fixed the allowable partition types for bottom-right
corner blocks.

When a block has over half of its pixels as valid content in both
vertical and horizontal directions, allow all the four partition
types in the bit-stream. Otherwise, apply partition type constraints.

Change-Id: I2252e2de7125a8bfb1c824bf34299a13c81102e3

Avoids divide-by-zero when variance is 0.

Change-Id: I3c7f526979046ff7d17714ce960fe81d6e1442a0

* New probs for subpel filters/tx_count
* Makes a change to not reset to defaults for the tx_size
probs if an intermediate frame reverts to using a fixed tx_size.
* A few updates to the parameters for backward adaptation for mode/mv
* some cosmetic cleanups

derf300: +0.06%

Change-Id: I22994d659bc31ca7a4fc8820fde24001e64a2920

This is consistent with uncompressed header encoding.

Change-Id: Iccf40a44b493ed36ee085b81ed56f7952cde70a9

Remove the bilinear filter mode, and the no-loopfilter mode, and the
related vp9_setup_version() function.

Change-Id: I32311367812faf37863131df3af37d63d03973d7

This commit has no impact but to help us debug issues.   To Use call like
this:

  vp9_print_modes_and_motion_vectors(cpi->common.mi, cpi->common.mi_rows,
                                     cpi->common.mi_cols,
                                     cpi->common.current_video_frame,
                                     "decode_mi.stt");

Change-Id: I89e27725dae351370eb7f311a20a145ed4f1d041

If the codec fails to return a frame on the second frame (as in a VP8 alt-ref,
then img will be a null pointer and dereferencing it while trying to write
the color format (again) will crash.

Change-Id: Ie48710d4c5715f532d453c879c71c20ccdeb81cc

Change-Id: I524ba98841f2e1850e3276ac365c501cea31546d

No bitstream change.

Removes unused filters and the code for the case of 2 switchable filters;
also changes the 8tap-smooth filter coefficients for integer shifts to be
interpolating to be consistent with the way it is implemented currently.

Change-Id: I96c542fd8c06f4e0df507a645976f58e6de92aae

Implements ability to signal and decode frames that are
encoded using only intra coding modes. Only the decode
side has been implemented here.

Change-Id: I53ac6a8d90422cd08ba389e5236e15b45f9e93de

A 32x32 transform should have no internal filtering (check c==4)

Change-Id: I7414cf4748ed053208217692ef00cd8b20d49a91

Change the argument of get_uv_tx_size() to be an MBMI pointer, so that the
correct column's MBMI can be passed to the function.

Change-Id: Ied6b8ec33b77cdd353119e8fd2d157811815fc98

Do not allow the rd code to check compound modes if
a segment level reference frame is selected.

Change-Id: I95f0c57789e0eaceed7caf227e94b4ba3130a06c

Change-Id: Ib5a95bb6ab643b276df3faa9bf99595e4a69ff18

Change-Id: I3baf93c2fa5c2f7f45c6bc5514d317040975da71