Fixes: OOM
Fixes: 3541/clusterfuzz-testcase-minimized-6469958596820992
Adds support for decoding codeblock data larger than 8kb
Reduces decoder memory consumption
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 2231/clusterfuzz-testcase-minimized-4565181982048256
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This also reduces the amount of memory needed
Fixes Ticket4672
The new code seems slightly faster as well, probably due to better cache usage
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
These 2 are highly related so they are in the same commit
Fixes part of Ticket4605
Fixes p0_04.j2k
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'be3271009ef893fbed9640e8edbd771685fd957b':
jpeg2000: Define the maximum decomposition levels
Conflicts:
libavcodec/jpeg2000.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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>
* qatar/master:
avcodec: Bump minor for JPEG 2000 decoder
JPEG 2000 decoder for DCinema
The mqc code is merged, the rest is added independent of
the existing jpeg2000 decoder and encoder.
Conflicts:
Changelog
doc/general.texi
libavcodec/Makefile
libavcodec/allcodecs.c
libavcodec/mqc.c
libavcodec/mqc.h
libavcodec/mqcdec.c
libavcodec/version.h
tests/fate/video.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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>
