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Commit Graph

14 Commits

Author SHA1 Message Date
Reimar Döffinger
b08edb2268 check that csize in ff_lzw_decode_init is < LZW_MAXBITS, <= is not enough and
might read outside the prefix array

Originally committed as revision 14214 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-13 20:03:57 +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
Michael Niedermayer
7993df6527 consts
I have underestimated this a little, and these are just some ...

Originally committed as revision 11708 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-01 03:26:31 +00:00
Michael Niedermayer
f39c3c8855 factorize &
Originally committed as revision 8525 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-26 00:54:29 +00:00
Michael Niedermayer
0abfd53344 simplify
Originally committed as revision 8524 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-26 00:44:42 +00:00
Michael Niedermayer
0cb7f8a260 check input validity, this prevents a few variables from reachin odd values which might have lead to out of array writes and thus might have been exploitable
Originally committed as revision 8522 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 23:37:38 +00:00
Michael Niedermayer
34a370cb0c simplify
Originally committed as revision 8521 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 23:22:11 +00:00
Michael Niedermayer
5f01beb548 move eob_reached logic into ff_lzw_decode_tail() which simplifies the code, avoids some checks in the innermost loop and also gets rid of the controversal break while hopefully retaining the last byte in a valid bytestream, invalid bytestreams still can have very significant overread
Originally committed as revision 8517 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 15:43:46 +00:00
Michael Niedermayer
6aaf3abd6d simplify
Originally committed as revision 8514 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 15:09:16 +00:00
Michael Niedermayer
bf7709619b factorize
Originally committed as revision 8510 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 14:02:54 +00:00
Michael Niedermayer
62ef8925c5 simplify
Originally committed as revision 8509 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-25 13:41:14 +00:00
Baptiste Coudurier
93e91145b4 fix indentation
Originally committed as revision 8499 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-24 23:23:51 +00:00
Baptiste Coudurier
36376fa3ba break if eob is reached to avoid reading one too much byte
Originally committed as revision 8498 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-24 23:23:05 +00:00
Kostya Shishkov
ffc5430bc3 LZW decoder as separate module plus TIFF LZW support
Originally committed as revision 6795 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-26 04:15:48 +00:00