Refactor per-transform copy & paste into a common function
update_coef_probs_common() and read_coef_probs_common(). The dry-run and
bit-writing loops in the encoder are still obvious candidates to be made
common, but they start to diverge a bit in the next commit, so are left
as-is for now.

Change-Id: I896bd3f4a073a6296eab7e92463fef79d8c6c08c

On Ubuntu 12.04, we got the following warning message:
<command-line>:0:0: warning: "_FORTIFY_SOURCE" redefined
 [enabled by default]
<built-in>:0:0: note: this is the location of the previous definition

This was already fixed in VP8 configure file. Did the same change in
experimental branch to stop this warning.

Change-Id: Id162e5fd8841585ae806df6560b2f7536ea307c0

Change-Id: Ia904f4ec72500d29f1361ce305d8f3231e592f47

This reverts commit b0e3ca12.

Change-Id: I9c5aa463461b187160ad01fbc1795ae4f5263b2c

to enable build under windows/MSVC

Change-Id: Ida41cc5b3c8d0fec9512c2f5c5feb64e07b44805

Change-Id: I240d6b50069fd3f35cc4fed2f4507796f0ef25e9

There is a macro DEFAULT_INTERP_FILTER defined in encoder/onyx_if.c that
is set as EIGHTTAP for now - so SWITCHABLE is not really used. Ideally,
this should be SWITCHABLE but that would make the encoder quite a bit slower.
We will change the default filter to SWITCHABLE once we find a faster way to
search for switchable filters.

Change-Id: Iee91832cdc07e6e14108d9b543130fdd12fc9874

Change-Id: I0d306b0062be59bc785b65882691c956c8b5e7c8

Removes the old mv encoding code.

Change-Id: I1026d48cc5ac15ccb776f98463e929254c3dc7da

Change-Id: Ibc4425bb6e01606751021e57c93106c365a2da21

The previous double if and else code snippets were rather confusing.

Change-Id: Id1b6152fa0e471beb9b20407aa406e109c1471e3

Change-Id: I5bca7b7a4b230082d36ac6fb84db84137ad177d7

* changes:
  Fix another typo in 4x4-transform-for-i8x8-intra-pred coeff contexts.
  8x8 transform support in splitmv.
  Use SPLITMV_PARTITIONING instead of a plain integer type.

Change-Id: I99f1982b30a630a9a070a8326d83b34a33cba14c

Change-Id: I02e7f64a7c99f6c222b9ef21341b0e801d646810

For splitmv, where partitioning is 8x16, 16x8 or 8x8, this patch
uses the 8x8 transform (instead of the 4x4) if txfm_mode is
ALLOW_8X8 or ALLOW_16X16. For TX_MODE_SELECT, splitmv can indicate
which of the 2 transform sizes (4x4 or 8x8) it wants to use.

Gains (with hybridtx4x4/8x8/16x16 and tx_select experiments
enabled) on derf: +0.9%, HD: +0.4%, STD/HD: +0.8% (SSIM or overall
PSNR, both metrics show similar improvements).

Change-Id: Ide954b000b415548ed92a7ac78e24f36e60fcf06

This can be used to distinguish between 16x8, 8x16, 8x8 and 4x4
partitioning modes when choosing splitmv as a MB mode.

Change-Id: Idc8b59772e1a80ccc4ad44d63c5c2ec3fc061a3c

It currently counts the probability that the branch is true, but it
should count the probability that the branch is false.

Change-Id: I963825da2e7a7ed3a613eb23ffd085e427dc36e5

Change-Id: Idd2722a538423b451e1e3495f89a7141480493d6

Allows B_VL_PRED & B_LD_PRED modes to be used for all blocks
within a MB in B_PRED mode. These modes were temporarily
disabled with super-block coding.

Change-Id: I973b9bdb82c3da5f12d7cc963162a28805f25303

Change-Id: Ica58d0c7d8addb5ddd5d6e1fdea8f0f96e110862

vp8_loop_filter_bh and vp8_loop_filter_bv

Change-Id: I0a77d38c701a6cce96cb8371c7f3ab7e2e7f878c

First sse2 version of vp8_mbloop_filter_vertical_edge().  For now,
intrinsics are being used until the bitstream is finalized.  This function
will be revisited later for further performance improvements.

For the test clip used, a 34+% decoder performance improvement
was seen.  This will vary depending on material.

Change-Id: I455b438bc8d8af76cf7533ac42eda5f689b21f7c

There were several different methods for calculating bitstream
probabilities in use. Consolodate these into a pair of functions,
get_prob() and get_binary_prob().

Change-Id: I5534f517f74027fee16d89c9baefaafea8156b2f

When run with no arguments, report warnings in the diff between the
working tree and HEAD. With arguments, report warnings in the diff
between the named commit and its parents.

Change-Id: Ie10dcdecb303edf8af51bad645cc11206a1fc26b