in encodframe.c, quant_shift is set to 0 or 1 in vp8cx_invert_quant

only use 8 bits to store this, instead of 16. will allow saving an
xmm register in an updated version of the regular quantize

Change-Id: Ie88c47fe2aff5af0283dab1147fb2791e4b12f90

MV sad cost error is only used in full-pixel motion search,
which only need full-pixel resolution instead of quarter-pixel
resolution. This change reduced mvsadcost table size, and
removed unneccessary pamameter passing since this table is
constant once it is generated.

Change-Id: I9f931e55f6abc3c99011321f1dfb2f3562e6f6b0

Allow compiling without adding vp8/{common,encoder,decoder} to the
include paths.

Change-Id: Ifeb5dac351cdfadcd659736f5158b315a0030b6c

vp8cx_mb_init_quantizer was being called for every mode checked
in vp8_rd_pick_inter_mode.  zbin_extra is the only value that
really needs to be recalculated.  This calculation is disabled
when using the fast quantizer for mode selection.
This gave a small performance boost (~.5% to 1%).
Note: This needs to be verified with segmentation_enabled.

Change-Id: I62716a870b3c82b4a998bdf95130ff0b02106f1e

Use the fast quantizer for inter mode selection and the
regular quantizer for the rest of the encode for good quality,
speed 1.  Both performance and quality were improved.  The
quality gains will make up for the quality loss mentioned in
I9dc089007ca08129fb6c11fe7692777ebb8647b0.

Change-Id: Ia90bc9cf326a7c65d60d31fa32f6465ab6984d21

Most of the code that actually uses these matrices indexes them as
 if they were a single contiguous array, and coverity produces
 reports about the resulting accesses that overflow the static
 bounds of the first row.
This is perfectly legal in C, but converting them to actual [16]
 arrays should eliminate the report, and removes a good deal of
 extraneous indexing and address operators from the code.

Change-Id: Ibda479e2232b3e51f9edf3b355b8640520fdbf23

This uses MB variance to change the RDO weight for mode decision
 and quantization.
Activity is normalized against the average for the frame, which is
 currently tracked using feed-forward statistics.
This could also be used to adjust the quantizer for the entire
 frame, but that requires more extensive rate control changes.
This does not yet attempt to adapt the quantizer within the frame,
 but the signaling cost means that will likely only be useful at
 very high rates.

Change-Id: I26cd7c755cac3ff33cfe0688b1da50b2b87b9c93

Changes 'The VP8 project' to 'The WebM project', for consistency
with other webmproject.org repositories.

Fixes issue #97.

Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba

Moved partition_bmi and partition_count out of MB_MODE_INFO and
placed into MACROBLOCK.  Also reduced the size of other members
of the MB_MODE_INFO struct.  For 1080p, the memory was reduced
by 1,209,516 bytes.  The decoder performance appeared to improve
by 3% for the clip used.
Note:  The main goal for this change is to improve the decoder
performance.  The encoder will be revisited at a later date for
further structure cleanup.

Change-Id: I4733621292ee9cc3fffa4046cb3fd4d99bd14613

The gf_active code is only used by the encoder, so it was moved from
common and decoder.

Change-Id: Iada15acd5b2b33ff70c34668ca87d4cfd0d05025

This replaces the approximate division-by-multiplication in the
 quantizer with an exact one that costs just one add and one
 shift extra.
The asm versions have not been updated in this patch, and thus
 have been disabled, since the new method requires different
 multipliers which are not compatible with the old method.

Change-Id: I53ac887af0f969d906e464c88b1f4be69c6b1206

The new fdct lowers the round trip sum squared error for a
4x4 block ~0.12. or ~0.008/pixel. For reference, the old
matrix multiply version has average round trip error 1.46
for a 4x4 block.

Thanks to "derf" for his suggestions and references.

Change-Id: I5559d1e81d333b319404ab16b336b739f87afc79

When the license headers were updated, they accidentally contained
trailing whitespace, so unfortunately we have to touch all the files
again.

Change-Id: I236c05fade06589e417179c0444cb39b09e4200d

Change-Id: I7ccc580410bea096a70dce0cc3d455348d4287c5

Change-Id: I944035e720ef834561a9da0d723879a4f787312c

Change-Id: Ieebea089095d9073b3a94932791099f614ce120c