4795362660
golomb: check remaining bits during unary decoding in get_ur_golomb_jpegls()
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Fixes infinite loop in FLAC decoding in case of a truncated bitstream due to
the safe bitstream reader returning 0's at the end.
Fixes Bug 310.
CC:libav-stable@libav.org
2012-06-12 14:33:39 -04:00
46b3fbc30b
golomb: use HAVE_BITS_REMAINING() macro to prevent infloop on EOF.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-02-24 07:28:33 -08:00
52e4018be4
flac: fix infinite loops on all-zero input or end-of-stream.
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-02-16 17:08:29 -08:00
c6643fddba
golomb: avoid infinite loop on all-zero input (or end of buffer).
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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
2012-02-16 08:36:08 -08:00
fdba370f8a
h264: fix HRD parameters parsing
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The bit_rate_value_minus1 and cpb_size_value_minus1 elements
allow a wider range than get_ue_golomb() supports. This
adds a get_ue_golomb_long() function supporting up to 31
leading zeros, which is the maximum for these syntax
elements, and uses it in decode_hrd_parameters().
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-10-11 18:24:51 +01:00
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-20 14:45:34 +00:00
6fa6c481b9
Make get_ur_golomb capable of reading 16 bit values.
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Patch by Lars Täuber: firstname taeuber gmx net
Originally committed as revision 19821 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-11 06:25:36 +00:00
9106a698e7
Rename bitstream.h to get_bits.h.
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Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-13 16:20:26 +00:00
b275500706
Split bitstream.h, put the bitstream writer stuff in the new file
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put_bits.h.
Originally committed as revision 18461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-12 08:35:26 +00:00
d4f2a6250a
Fix get_ur_golomb_jpegls() with A32_BITSTREAM_READER
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If k==0, log==0 can indicate that the coded value uses more than
MIN_CACHE_BITS bits. With MIN_CACHE_BITS==32, the fast branch is
incorrectly taken in this case unless explicitly forbidden.
Originally committed as revision 17550 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-24 01:41:44 +00:00
9392863d1b
Clarify get_ue_golomb_31() behavior with >31.
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Originally committed as revision 17429 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-18 11:57:11 +00:00
bad5537e2c
Use full internal pathname in doxygen @file directives.
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Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-01 02:00:19 +00:00
0e921e97c1
Add get_ue_golomb_31()
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Originally committed as revision 16298 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-12-23 21:05:47 +00:00
740c14dbd7
Fix regression test failure caused by golomb limit not being considered
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in r15334.
Originally committed as revision 15338 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-16 01:24:12 +00:00
631e8afb8c
Correct the threshold of get_ur_golomb_jpegls() at which the optimized
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case is used.
Fix issue245.
Originally committed as revision 15334 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-15 20:30:22 +00:00
987903826b
Globally rename the header inclusion guard names.
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Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.' to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".
Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00
6647ab80e3
bitstream: move put_sbits() from flacenc.c to bitstream.h and use it
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throughout libavcodec.
Originally committed as revision 14204 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-13 14:27:48 +00:00
5b21bdabe4
Add FFMPEG_ prefix to all multiple inclusion guards.
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Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-10-17 09:37:46 +00:00
9df4ce5e5b
Make the Golomb decoder work for Dirac
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Originally committed as revision 10119 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-08-15 12:59:27 +00:00
e5a389a1b7
license header consistency cosmetics
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Originally committed as revision 9484 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-05 10:40:25 +00:00
efb775777f
add a comment to indicate which #endif belong to which #define
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Originally committed as revision 9356 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-17 18:59:28 +00:00
699b3f99d0
add multiple inclusion guards to headers
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Originally committed as revision 9345 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-17 00:01:30 +00:00
99545457bf
include all prerequisites in header files
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Originally committed as revision 9344 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-16 22:59:13 +00:00
76aca7a8bf
handle limit>32 for set_ur_golomb_jpegls()
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Originally committed as revision 6754 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-22 04:52:15 +00:00
b78e7197a8
Change license headers to say 'FFmpeg' instead of 'this program/this library'
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and fix GPL/LGPL version mismatches.
Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-07 15:30:46 +00:00
9e96ab0389
first rudimentary version of (Justin Ruggles jruggle earthlink net) flac encoder
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Originally committed as revision 5514 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-06-24 10:20:15 +00:00
5509bffa88
Update licensing information: The FSF changed postal address.
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Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-01-12 22:43:26 +00:00
bb270c0896
COSMETICS: tabs --> spaces, some prettyprinting
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Originally committed as revision 4764 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-22 01:10:11 +00:00
115329f160
COSMETICS: Remove all trailing whitespace.
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Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-12-17 18:14:38 +00:00
e134e10f37
set_se_golomb can only write 16bits, add a note about this (ok, maybe it's brain dead using it with more than 16bits, but..)
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Originally committed as revision 4635 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-10-12 22:43:12 +00:00
85ad569574
shorten decoder by (Jeff Muizelaar <jrmuizel gmail com>)
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Originally committed as revision 3984 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-02-26 03:36:04 +00:00
895345da9a
svq3_get_se_golomb() fix
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Originally committed as revision 3849 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-19 13:03:38 +00:00
61f040dd1a
compile with TRACE define patch by (Loic <lll+ffmpeg m4x org>)
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Originally committed as revision 3848 to svn://svn.ffmpeg.org/ffmpeg/trunk
2005-01-19 12:58:34 +00:00
a6c01275ad
get/set_sr_golomb() cleanup
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Originally committed as revision 3451 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-09-10 19:40:55 +00:00
4579adb00c
new signed golomb routines
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Originally committed as revision 3444 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-09-08 17:59:22 +00:00
cceb990ef9
1000l to the ffsvq3 author, our default bitstream reader is only guranteed to be able to read 25bit at a time
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Originally committed as revision 3237 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-06-19 01:14:13 +00:00
ac2570a8b0
flac fixes:
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fix data types of residual&decoded
fix twos complement bitfields
fix utf8 (no, utf8 is not the same as the simple and compact uvlc used in nut)
add truncated bitstream support, both ogg and flac demuxers in mplayer cvs provide incomplete frames, and furthermore it isnt possible to find frameboundaries in flac without decoding it completly
add escape-less golomb rice decoder (=flac style golomb rice) (ultra efficient, the longest vlc code is just 2^32-1 bits)
printf->av_log
fix bps for non independant channels
fix a few +-1 bugs
fix sample order for independant channels
fix data_size
Originally committed as revision 2791 to svn://svn.ffmpeg.org/ffmpeg/trunk
2004-02-18 01:49:30 +00:00
ce3299529b
10l
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Originally committed as revision 2041 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-13 11:14:43 +00:00
d9e6a6c629
golomb rice code cleanup / simplify (~0.5% compression gain and slightly faster)
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jpegls style golomb rice coder
Originally committed as revision 2040 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-07-13 11:06:45 +00:00
11e659c203
golomb rice codes
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use gradients instead of prediction errors as context model
store independant quantization tables for each point
merge contexts with opposit sign
Originally committed as revision 1957 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-06-13 21:31:28 +00:00
4704097a2b
optimizations
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Originally committed as revision 1867 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-05-13 00:46:42 +00:00
8b82a95675
svq3 decoder by anonymous
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Originally committed as revision 1845 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-05-09 22:16:14 +00:00
1924f3ce36
multiple reference frames support
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Originally committed as revision 1734 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-04-04 20:59:50 +00:00
0da71265d8
H264 decoder & demuxer
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Originally committed as revision 1732 to svn://svn.ffmpeg.org/ffmpeg/trunk
2003-04-04 14:42:28 +00:00
Justin Ruggles
Ronald S. Bultje
Mans Rullgard
Diego Biurrun
Lars Täuber
Stefano Sabatini
Michael Niedermayer
Ramiro Polla
Marco Gerards
Guillaume Poirier
Kostya Shishkov
Alex Beregszaszi
Loïc Le Loarer