Commit Graph

11 Commits

Author SHA1 Message Date
Luca Barbato
daeb4e3042 jpeg2000: Proper cleanup on failure in decode_frame()
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:47 +02:00
Michael Niedermayer
db13e02c6f jpeg2000: Compute corrections of sub-band coordinates
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:46 +02:00
Michael Niedermayer
690c8af97b jpeg2000: Remove unneeded variable initialization
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:46 +02:00
Michael Niedermayer
5bf208f659 jpeg2000: Use separate fields for int and float codepaths
Split stepsize and data into int and float variants.
Eliminates a number of casts and simplifies spotting errors.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:46 +02:00
Michael Niedermayer
952f7ed3c0 jpeg2000: Compute quantization for 'scalar derived' in the correct case.
Scalar derived case is represented by the JPEG2K_QSTY_SI define.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Michael Niedermayer
4e11b15534 jpeg2000: Calculate code-block coord in ff_jpeg2000_init_component()
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Nicolas Bertrand <nicoinattendu@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Michael Niedermayer
4cbd5ed11b jpeg2000: Fix compute precedence error in lut_gain index
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Michael Niedermayer
b44925ae6b jpeg2000: Initialize code blocks structures in precincts to 0
Prevent use of uninitialized memory / valgrind failure.

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Michael Niedermayer
2c3901b2c3 jpeg2000: Remove unneeded returns
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Michael Niedermayer
78962d3df4 jpeg2000: Check that nreslevels2decode has been initialized before use
Avoid buffer overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-07-02 20:05:45 +02:00
Nicolas Bertrand
c81a706381 JPEG 2000 decoder for DCinema
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>
2013-04-22 15:38:29 +02:00