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Commit Graph

5 Commits

Author SHA1 Message Date
Michael Niedermayer
b3192c64b5 avcodec/jpeg2000dsp: Fix integer overflows in ict_int()
Fixes: signed integer overflow: 46802 * -71230 cannot be represented in type 'int'
Fixes: 4756/clusterfuzz-testcase-minimized-4812495563784192

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-01-08 18:57:22 +01:00
Michael Niedermayer
2d025e7428 avcodec/jpeg2000dsp: Fix multiple integer overflows in ict_int()
Fixes: runtime error: signed integer overflow: 22553 * -188962 cannot be represented in type 'int'
Fixes: 3042/clusterfuzz-testcase-minimized-5174210131394560

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-09-11 12:28:23 +02:00
Michael Niedermayer
c746f92a8e avcodec/jpeg2000dsp: Reorder operations in ict_int() to avoid 2 integer overflows
Fixes: runtime error: signed integer overflow: 58065 * 51981 cannot be represented in type 'int'
Fixes: 2271/clusterfuzz-testcase-minimized-5778297776504832

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-06-17 22:36:54 +02:00
James Almer
7912a6830d avcodec/jpeg200dsp: add ff_ict_float_{sse,avx}
Original intrinsics version by Nicolas Bertrand.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
2015-06-13 16:53:27 -03:00
James Almer
c9f2ec8a34 jpeg2000: split off inverse MCT decoding as Jpeg2000DSP
This makes the addition of arch optimized functions easier.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
2014-10-02 03:21:45 -03:00