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