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64 Commits

Author SHA1 Message Date
Luca Barbato
3e700cc66b vp6: properly fail on unsupported feature 
Interlacing is not supported at all and mismanaged down the normal
codepaths causing possible buffer management issues.

Fixes: CVE-2012-2783
(cherry picked from commit be75fed9755c1285ba084574aff2d7ee0f81110d)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2013-01-05 12:02:22 +01:00
Luca Barbato
145317d220 vp56: make parse_header return standard error codes 
Returning 0 for failure is misleading.

CC: libav-stable@libav.org

(cherry picked from commit bb675d3ac6d722d5e117ae9042a996b55ca05b1d)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2013-01-02 20:28:08 +01:00
Martin Storsjö
8c0bbe5156 vlc/rl: Add ff_ prefix to the nonstatic symbols 
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit e96b4a53df101403c54e329abfadad2edddc47c4)

Conflicts:
	libavcodec/4xm.c

Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2012-09-29 09:34:19 +02:00
Alex Converse
48f0eeb2e5 Replace computations of remaining bits with calls to get_bits_left(). 
(cherry picked from commit 3574a85ce57366ba7429edef93d5cad8640fb68c)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2012-03-14 21:27:16 +01:00
Ronald S. Bultje
b2dcac7141 vp56: error out on invalid stream dimensions. 
Prevents crashes when playing corrupt vp5/6 streams.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 8bc396fc0e8769a056375c1c211f389ce0e3ecc5)

Signed-off-by: Reinhard Tartler <siretart@tauware.de>
 2012-02-29 14:23:11 +01:00
Thierry Foucu
e0966eb140 vp6: Fix illegal read. 
Found with Address Sanitizer

Signed-off-by: Alex Converse <alex.converse@gmail.com>
 2011-11-17 11:58:40 -08:00
Alex Converse
2a6eb06254 vp6: Fix illegal read. 2011-11-03 16:40:34 -07:00
Laurent Aimar
a72cad0a6c vp6: Reset the internal state when aborting key frames header parsing 
It prevents leaving the state only half initialized.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 00:37:32 +02:00
Laurent Aimar
066fff755a vp6: Check for huffman tree build errors 
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
 2011-10-07 00:27:03 +02:00
Dustin Brody
f913eeea43 vp6: partially propagate huffman tree building errors during coeff model parsing and fix misspelling 
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
 2011-08-25 15:49:56 -07:00
Anton Khirnov
ec6402b7c5 lavc: use designated initialisers for all codecs. 
It's more readable and less prone to breakage.
 2011-07-29 08:42:34 +02:00
Diego Biurrun
6168781f70 doxygen: do not include license boilerplate in Doxygen documentation 2011-07-15 00:52:09 +02:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-03-19 13:33:20 +00:00
Diego Elio Pettenò
d36beb3f69 Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf. 
None of these symbols should be accessed directly, so declare them as
hidden.

Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-01-26 16:08:45 +00:00
Ronald S. Bultje
3a0885146c Move vp6_filter_diag4() from DSPContext to VP56DSPContext. 
Originally committed as revision 24921 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-25 13:42:28 +00:00
Jason Garrett-Glaser
905ef0d064 VP5/6/8: eliminate CABAC dependency 
Create a custom table for VP5/6/8's renorm to avoid depending on H.264's.
Saves one instruction in the arithmetic decoder as well.

Originally committed as revision 24701 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-08-04 23:04:05 +00:00
Alex Converse
52fa20542b Reindent after last commit. 
Originally committed as revision 24562 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-28 05:38:30 +00:00
Alex Converse
d950497083 ff_prefix non static vp56 functions. 
Originally committed as revision 24561 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-07-28 05:36:33 +00:00
Måns Rullgård
796cea09b6 vp6: convert VLA to fixed size 
Originally committed as revision 23754 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-06-24 09:02:44 +00:00
Måns Rullgård
5e1ba34bbb VP56: move vp56_edge_filter to new VP56DSPContext 
Using macro templates allows the vp[56]_adjust functions to be
inlined instead of called through function pointers.  The new
function pointers enable optimised implementations of the filters.

4% faster VP6 decoding on Cortex-A8.

Originally committed as revision 22992 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-04-30 21:30:22 +00:00
Diego Biurrun
ba87f0801d Remove explicit filename from Doxygen @file commands. 
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
Stefano Sabatini
72415b2adb Define AVMediaType enum, and use it instead of enum CodecType, which 
is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-30 23:30:55 +00:00
Aurelien Jacobs
ded2100e48 move vp6 huffman table freeing code, out of common vp56 code 
Originally committed as revision 22186 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-03 22:29:06 +00:00
Vitor Sessak
0a41faa9a7 Plug some memory leaks in the VP6 decoder 
Originally committed as revision 22172 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2010-03-03 17:24:32 +00:00
Reimar Döffinger
ad92108694 Add a check to vp6_parse_coeff_huffman to ensure it does not overread the input buffer. 
Originally committed as revision 19349 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-07-05 16:01:51 +00:00
Stefano Sabatini
9106a698e7 Rename bitstream.h to get_bits.h. 
Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-04-13 16:20:26 +00:00
Aurelien Jacobs
26f3ae828b move vp6_filter_diag4() to a new vp6dsp.c file and use it throught dsputil 
Originally committed as revision 17111 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2009-02-09 23:37:31 +00:00
Diego Biurrun
bad5537e2c Use full internal pathname in doxygen @file directives. 
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
Aurelien Jacobs
bf73801bec vp56: don't reset dimensions to 0 in codec init 
Originally committed as revision 16140 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-15 00:00:16 +00:00
Aurelien Jacobs
d887151d8c rename Vp56Model to VP56Model for consistency 
Originally committed as revision 16073 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-12 00:51:53 +00:00
Aurelien Jacobs
3d52bca6bf avoid POSIX reserved _t suffix 
Originally committed as revision 16068 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-12-11 22:56:19 +00:00
Aurelien Jacobs
40056c32df vp6dec: ensure we don't try to use a buffer with negative size 
this should never happen in valid vp6 bitstream
fix issue684

Originally committed as revision 15610 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-10-13 00:10:53 +00:00
Peter Ross
d47f16074f vp6: ensure that huffman decoding table is sorted with descending symbol order 
Previous code worked by pure luck with glibc qsort implementation.
patch by Peter Ross   pross _at_ xvid _dot_ org

Originally committed as revision 13887 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-22 13:20:41 +00:00
Stefano Sabatini
fe4bf37455 Make AVCodec long_names definition conditional depending on CONFIG_SMALL. 
Originally committed as revision 13759 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-06-12 21:50:13 +00:00
Stefano Sabatini
162d4fc99d Add long names to AVCodec declarations. 
patch by Stefano Sabatini, stefano.sabatini-lala poste it

Originally committed as revision 13009 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-04-27 22:39:51 +00:00
Zuxy Meng
98a6fff98c Apply 'cold' attribute to init/uninit functions in libavcodec 
Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-21 03:11:20 +00:00
Aurelien Jacobs
bac02ed3c5 huffman: pass hnode_first as a flag instead of as an argument on its own 
Originally committed as revision 12373 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-08 17:57:13 +00:00
Aurelien Jacobs
d37f007d54 remove #include "mpegvideo.h" where it is not needed 
Originally committed as revision 12321 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-03-05 00:07:53 +00:00
Michael Niedermayer
7e5cdb5b1b const 
Originally committed as revision 11791 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2008-02-01 16:16:40 +00:00
Aurelien Jacobs
713b0bffd6 10l: init_get_bits want size in bits, not bytes 
Originally committed as revision 11099 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-11-27 22:00:45 +00:00
Aurelien Jacobs
f28b10483a add support for VP6 with huffman encoded blocks 
closes issue 104

Originally committed as revision 10737 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-10-14 22:30:59 +00:00
Aurelien Jacobs
91fc2cf150 add a new vp6a codec (add alpha plan support to vp6) 
Originally committed as revision 10574 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-25 19:12:46 +00:00
Aurelien Jacobs
247df384ec move all model related tables into their own struct 
Originally committed as revision 10571 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-24 22:29:11 +00:00
Aurelien Jacobs
1457516f70 some simplifications and uniformisation 
Originally committed as revision 10568 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-24 20:43:47 +00:00
Aurelien Jacobs
c0fee8c985 add a warning message for unsupported kind of encoding 
Originally committed as revision 10277 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-09-01 13:04:25 +00:00
Diego Biurrun
7b94177e37 Group all copyright and author notices together. 
Originally committed as revision 9483 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-07-05 10:37:29 +00:00
Loren Merritt
4b8419aa7f simplify 
Originally committed as revision 8911 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-05-06 09:17:50 +00:00
Loren Merritt
cd66ddb6b0 simplify 
Originally committed as revision 8908 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-05-06 06:46:20 +00:00
Loren Merritt
6ec4818525 faster and simpler vp6 bilinear mc 
Originally committed as revision 8907 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-05-06 06:43:33 +00:00
Aurelien Jacobs
75f6cc26ba set CODEC_CAP_DR1 for vp5 and vp6 decoders 
Originally committed as revision 8896 to svn://svn.ffmpeg.org/ffmpeg/trunk
 2007-05-05 15:21:57 +00:00