Commit Graph

18 Commits

Author SHA1 Message Date
Dmitry Kovalev
26cec5c13f Basic encryption feature for libvpx.
New decoder control paramter VP8_SET_DECRYPT_KEY to set the decryption key.

Change-Id: I6fc1f44d41f74f3b3f702778af1a6f8f5cc9439f
2013-03-15 18:21:55 -07:00
Dmitry Kovalev
33efdfec3f Code cleanup.
Writing all #define guards using the same style. Inlining macro
VP8DX_BOOL_DECODER_FILL into vp8dx_bool_decoder_fill. Removing unnecessary
includes.

Change-Id: I483fa979ab34008bf7835b5f34c6471c44daf956
2013-03-04 16:53:00 -08:00
Yaowu Xu
d71ba03822 silent compiling warnings for VC9 build
Change-Id: Iaa947e640f27e6f6eaf7d845f243536bca2df513
2012-08-20 11:45:01 -07:00
Attila Nagy
1a7d25a484 Replace vpx_ports/config.h with vpx_config.h
Just a clean-up.

Change-Id: Iea5b6dc925dcfa7db548bc1ab1a13d26ed5a2c9a
2011-09-22 13:33:54 +03:00
Scott LaVarnway
a25f6a9c88 Moved vp8_encode_bool into boolhuff.h
allowing the compiler to inline this function.  For real-time
encodes, this gave a boost of 1% to 2.5%, depending on the
speed setting.

Change-Id: I3929d176cca086b4261267b848419d5bcff21c02
2011-07-19 09:17:25 -04:00
Scott LaVarnway
67a1f98c2c Improved vp8dx_decode_bool
Relocated the vp8dx_bool_decoder_fill() call, allowing
the compiler to produce better assembly code.  Tests
showed a 1 - 2 % performance boost (x86 using gcc)
for the 720p clip used.

Change-Id: Ic5a4eefed8777e6eefa007d4f12dfc7e64482732
2011-06-20 14:44:16 -04:00
John Koleszar
5e1fd41357 Speed up VP8DX_BOOL_DECODER_FILL
The end-of-buffer check is hoisted out of the inner loop. Gives
about 0.5% improvement on x86_64.

Change-Id: I8e3ed08af7d33468c5c749af36c2dfa19677f971
2011-04-27 10:25:03 -04:00
John Koleszar
9594370e0c Update VP8DX_BOOL_DECODER_FILL to better detect EOS
Allow more reliable detection of truncated bitstreams by being more
precise with the count of "virtual" bits in the value buffer.
Specifically, the VP8_LOTS_OF_BITS value is accumulated into count,
rather than being assigned, which was losing the prior value,
increasing the required tolerance when testing for the error condition.

Change-Id: Ib5172eaa57323b939c439fff8a8ab5fa38da9b69
2011-04-27 10:24:39 -04:00
Johann
bb9c95ea53 remove unused dboolhuff code
we were holding on to this "just in case." purge it instead

Change-Id: I77a367b36d0821d731019f2566ecfffdae1d4b8a
2011-02-04 16:00:00 -05:00
Henrik Lundin
67fb3a5155 Implement error tracking in the decoder
A new vpx_codec_control called VP8D_GET_FRAME_CORRUPTED. The output
from the function is non-zero if the last decoded frame contains
corruption due to packet losses.

The decoder is also modified to accept encoded frames of zero length.
A zero length frame indicates to the decoder that one or more frames
have been completely lost. This will mark the last decoded reference
buffer as corrupted. The data pointer can be NULL if the length is
zero.

Change-Id: Ic5902c785a281c6e05329deea958554b7a6c75ce
2011-01-19 09:53:21 +01:00
Timothy B. Terriberry
c4d7e5e67e Eliminate more warnings.
This eliminates a large set of warnings exposed by the Mozilla build
 system (Use of C++ comments in ISO C90 source, commas at the end of
 enum lists, a couple incomplete initializers, and signed/unsigned
 comparisons).
It also eliminates many (but not all) of the warnings expose by newer
 GCC versions and _FORTIFY_SOURCE (e.g., calling fread and fwrite
 without checking the return values).
There are a few spurious warnings left on my system:

../vp8/encoder/encodemb.c:274:9: warning: 'sz' may be used
 uninitialized in this function
gcc seems to be unable to figure out that the value shortcut doesn't
 change between the two if blocks that test it here.

../vp8/encoder/onyx_if.c:5314:5: warning: comparison of unsigned
 expression >= 0 is always true
../vp8/encoder/onyx_if.c:5319:5: warning: comparison of unsigned
 expression >= 0 is always true
This is true, so far as it goes, but it's comparing against an enum, and the C
 standard does not mandate that enums be unsigned, so the checks can't be
 removed.

Change-Id: Iaf689ae3e3d0ddc5ade00faa474debe73b8d3395
2010-10-27 18:08:04 -07:00
John Koleszar
c2140b8af1 Use WebM in copyright notice for consistency
Changes 'The VP8 project' to 'The WebM project', for consistency
with other webmproject.org repositories.

Fixes issue #97.

Change-Id: I37c13ed5fbdb9d334ceef71c6350e9febed9bbba
2010-09-09 10:01:21 -04:00
Scott LaVarnway
e85e631504 Changed above and left context data layout
The main reason for the change was to reduce cycles in the token
decoder. (~1.5% gain for 32 bit)  This layout should be more
cache friendly.

As a result of this change, the encoder had to be updated.

Change-Id: Id5e804169d8889da0378b3a519ac04dabd28c837
Note: dixie uses a similar layout
2010-08-31 11:24:30 -04:00
John Koleszar
94c52e4da8 cosmetics: trim trailing whitespace
When the license headers were updated, they accidentally contained
trailing whitespace, so unfortunately we have to touch all the files
again.

Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 13:06:11 -04:00
Timothy B. Terriberry
c17b62e1bd Change bitreader to use a larger window.
Change bitreading functions to use a larger window which is refilled less
 often.

This makes it cheap enough to do bounds checking each time the window is
 refilled, which avoids the need to copy the input into a large circular
 buffer.
This uses less memory and speeds up the total decode time by 1.6% on an ARM11,
 2.8% on a Cortex A8, and 2.2% on x86-32, but less than 1% on x86-64.

Inlining vp8dx_bool_decoder_fill() has a big penalty on x86-32, as does moving
 the refill loop to the front of vp8dx_decode_bool().
However, having the refill loop between computation of the split values and
 the branch in vp8_decode_mb_tokens() is a big win on ARM (presumably due to
 memory latency and code size: refilling after normalization duplicates the
 code in the DECODE_AND_BRANCH_IF_ZERO and DECODE_AND_LOOP_IF_ZERO cases.
Unfortunately, refilling at the end of vp8dx_bool_decoder_fill() and at the
 beginning of each decode step in vp8_decode_mb_tokens() means the latter
 requires an extra refill at the end.
Platform-specific versions could avoid the problem, but would require most of
 detokenize.c to be duplicated.

Change-Id: I16c782a63376f2a15b78f8086d899b987204c1c7
2010-06-15 19:55:14 -07:00
John Koleszar
09202d8071 LICENSE: update with latest text
Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
John Koleszar
b7492341ac install includes in DIST_DIR/include/vpx, move vpx_codec/ to vpx/
This renames the vpx_codec/ directory to vpx/, to allow applications
to more consistently reference these includes with the vpx/ prefix.
This allows the includes to be installed in /usr/local/include/vpx
rather than polluting the system includes directory with an
excessive number of includes.

Change-Id: I7b0652a20543d93f38f421c60b0bbccde4d61b4f
2010-05-24 20:27:42 -04:00
John Koleszar
0ea50ce9cb Initial WebM release 2010-05-18 11:58:33 -04:00