Commit Graph

10 Commits

Author SHA1 Message Date
John Koleszar
a425e2cc06 Add marker bit to bool-coded partition start
Adds a marker bit to allow distinguishing the frame header from its residual
data.

Change-Id: Id75d47acc9e5a97007e4690c4f8748a4ce63e641
2013-06-06 23:06:26 -07:00
Deb Mukherjee
b8b3f1a46d Balancing coef-tree to reduce bool decodes
This patch changes the coefficient tree to move the EOB to below
the ZERO node in order to save number of bool decodes.

The advantages of moving EOB one step down as opposed to two steps down
in the other parallel patch are: 1. The coef modeling based on
the One-node becomes independent of the tree structure above it, and
2. Fewer conext/counter increases are needed.

The drawback is that the potential savings in bool decodes will be
less, but assuming that 0s are much more predominant than 1's the
potential savings is still likely to be substantial.

Results on derf300: -0.237%

Change-Id: Ie784be13dc98291306b338e8228703a4c2ea2242
2013-05-29 16:25:52 -07:00
Dmitry Kovalev
9e4902c760 Moving exp. coding functions from vp9_boolhuff.c to vp9_bitstream.c.
Change-Id: Ib07d1e707a87cec98ea3a1779fccca078d8c4310
2013-05-20 16:23:19 -07:00
Dmitry Kovalev
cd5113ceec Replacing vp9_{write, write_literal, bit} macros with functions.
Also removing BOOL_CODER and using vp9_writer instead.

Change-Id: I31d1ec661872f7eb1fe869607b6ed0ebfbb03e01
2013-05-07 18:19:50 -07:00
Dmitry Kovalev
aea29cd278 General code cleanup inside treewriter-related files.
Change-Id: Ifaa40612a9c054d96112ba350c6f4adb46b1bd5b
2013-04-30 16:39:07 -07:00
John Koleszar
872fc3ded8 disambiguate superframe index in vp9_stop_encode()
If the bool-coded partition naturally ends in a byte that matches the
superframe index marker, it could lead to a parse error. This commit
ensures that if such a marker is seen, it is padded out with an
additional zero byte to disambiguate it.

Change-Id: Id977de05745b6fa9ef08afb71e210a2a3ecca02e
2013-03-12 14:30:23 -07:00
Dmitry Kovalev
5a18106fb7 Code cleanup.
Removing redundant 'extern' keywords. Moving VP9DX_BOOL_DECODER from .h
to .c file.

Change-Id: I5a3056cb3d33db7ed3c3f4629675aa8e21014e66
2013-02-21 13:50:15 -08:00
Jim Bankoski
c67873989f fixed includes to be fully specified
Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243
2012-11-28 10:53:17 -08:00
John Koleszar
a1f15814be Clamp decoded feature data
Not all segment feature data elements are full-range powers of two, so
there are values that can be encoded that are invalid. Add a new function
to clamp values to the maximum allowed.

Change-Id: Ie47cb80ef2d54292e6b8db9f699c57214a915bc4
2012-11-27 16:38:31 -08:00
John Koleszar
fcccbcbb39 Add vp9_ prefix to all vp9 files
Support for gyp which doesn't support multiple objects in the same
static library having the same basename.

Change-Id: Ib947eefbaf68f8b177a796d23f875ccdfa6bc9dc
2012-11-27 14:12:30 -08:00