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11 Commits

Author SHA1 Message Date
Andreas Rheinhardt
4393331250 avcodec/dirac_dwt: Avoid conversions between function pointers and void* 
Pointers to void can be converted to any pointer to incomplete or
object type and back; but they are nevertheless not completely generic
pointers: There is no provision in the C standard that guarantees their
convertibility with function pointers. C90 lacks a generic function
pointer, C99 made every function pointer a generic function pointer and
still disallows the convertibility with void *. Both GCC as well as
Clang warn about this when using -pedantic.

Therefore use unions to avoid these conversions.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-09-28 23:37:12 +02:00
Andreas Rheinhardt
a91ddce689 avcodec/dirac_dwt(_template): Don't use ff_-prefix for static func 
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2022-09-28 23:23:40 +02:00
Michael Niedermayer
69cac9e130 avcodec/dirac_dwt_template: Fix several integer overflows in horizontal_compose_daub97i() 
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 8926/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6047609228623872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-07-28 14:35:50 +02:00
Michael Niedermayer
181435a4de avcodec/dirac_dwt_template: Fix signedness regression in interleave() 
Found-by: <jdarnley>
Tested-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-07-14 18:02:26 +02:00
Michael Niedermayer
575d8ca026 avcodec/dirac_dwt_template: Fix undefined behavior in interleave() 
Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 8697/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5197148130902016

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-06-15 21:52:33 +02:00
Michael Niedermayer
647fa49495 avcodec/dirac_dwt_template: Fix Integer overflow in horizontal_compose_dd137i() 
Fixes: 5894/clusterfuzz-testcase-minimized-5315325420634112
Fixes: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-02-18 23:27:03 +01:00
Michael Niedermayer
fe1e6c06d0 avcodec/dirac_dwt: Fix several integer overflows 
Fixes: runtime error: signed integer overflow: -2146071175 + -268479557 cannot be represented in type 'int'
Fixes: 5237/clusterfuzz-testcase-minimized-4569895275593728

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-01-30 22:08:32 +01:00
Michael Niedermayer
a165b53daa avcodec/dirac_dwt_template: Fix integer overflow in vertical_compose53iL0() 
Fixes: runtime error: signed integer overflow: 2147483646 + 2 cannot be represented in type 'int'
Fixes: 3013/clusterfuzz-testcase-minimized-4644084197097472

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-08-20 21:14:47 +02:00
Timothy Gu
58ded09bd1 dirac_dwt: Rename init2 to init 
The functions are all private.
 2016-02-07 09:09:13 -08:00
Timothy Gu
6cdde20beb dirac_dwt: Don't pass information in context as arguments 2016-02-07 09:09:13 -08:00
Kieran Kunhya
3f07f12f65 diracdec: Template DSP functions adding 10-bit versions 2015-12-10 18:25:02 +00:00