Michael Niedermayer
ffb1051b9b
jpeg2000: Zero prec->cblk
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Prevent use of uninitialized memory / valgrind failure
Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
6e9bfc19bd
jpeg2000: check that nreslevels2decode has been initialized before use
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Fixes out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
234f76ae7d
jpeg2000: Fix unintended sign extension in malloc arguments of prec
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Fixes: CID1026772/3
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
d8c10324ed
jpeg2000: Fix Unintended sign extension in malloc arguments of cblk.
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Fixes CID1026770
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
9d56ccf5af
j2k/jpeg2000dec: merge
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
62d00aa22f
jpeg2000/j2k: merge j2k/jpeg2000.c/h
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Now only j2kdec / jpeg2000dec.c remain
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
c2ac389bba
jpeg2000: remove unneeded casts
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
09e03a8467
jpeg2000: merges quantization fixes from j2k
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
efc2df2e27
jpeg2000: remove unneeded variable initialization
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
84a6bc2357
jpeg2000: tag_tree_size: replace check by assert
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This function is never called with values large enough for the
error condition to occur
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
8bedbb82ce
j2k/jpeg2000: split data pointer in int & float.
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This fixes a TODO item and unifies both decoders structures
It also fixes undefined behavior due to aliasing violations
I choose 2 fields instead of a union because mistakely using the
wrong type with a union will lead to hard to debug "wrong output"
while with 2 fields mistakely using the wrong type will crash
with a null pointer derefernce which is much easier to debug
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
fe7136ef82
j2k/jpeg2000: split stepsize in float & int variables
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This is more clear and less prone to mistakes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
f7129ab928
j2k/jpeg2000: fix typo in lut_gain index
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no testcase
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
32475f56f3
j2kdec/jpeg2000dec: partially merge quantization code
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The quantization code needs more work, not so much work
merging but more work investigating what is correct.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
1b5cb6c00a
j2k/jpeg2000: Partially merge quantization code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
9a18395b92
j2k/jpeg2000: merge a few whitespaces
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
14652c080d
j2k/jpeg2000: restructure cblk coord
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
874a06bd1f
j2k: cosmetics from jpeg2000
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
b67fe48f34
jpeg2000/j2k: merge getsigctxno()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Nicolas Bertrand
c81a706381
JPEG 2000 decoder for DCinema
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Based on the 2007 GSoC project from Kamil Nowosad <k.nowosad@students.mimuw.edu.pl>
Updated to current programming standards, style and many more small
fixes by Diego Biurrun <diego@biurrun.de>.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
12 years ago