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21 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
Michael Niedermayer
cb944fc7f1 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_DD97iH0 / COMPOSE_DD137iL0 
Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int');
Fixes: 6500/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-4523620274536448

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-05-17 02:23:06 +02:00
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
0e62a23734 avcodec/dirac_dwt: Fix overflows in COMPOSE_HAARiH0/COMPOSE_HAARiL0 
Fixes: 4830/clusterfuzz-testcase-minimized-5255392054476800
Fixes: signed integer overflow: 2147483646 - -7 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>
 2018-01-08 21:50:15 +01:00
Michael Niedermayer
4d70fbeec8 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_DD97iH0() and COMPOSE_DD137iL0() 
Fixes: runtime error: signed integer overflow: 2147483646 + 33554433 cannot be represented in type 'int'
Fixes: 4563/clusterfuzz-testcase-minimized-5438979567517696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-12-26 18:05:10 +01:00
Michael Niedermayer
5e9a13a5a3 avcodec/dirac_dwt: Fix integer overflows in COMPOSE_DAUB97* 
Fixes: 4478/clusterfuzz-testcase-minimized-4752113767809024
Fixes: runtime error: signed integer overflow: -2147483626 + -319489 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>
 2017-12-06 22:09:25 +01:00
Michael Niedermayer
2b6964f764 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_FIDELITYi* 
Fixes: runtime error: signed integer overflow: -2143827186 - 7404944 cannot be represented in type 'int'
Fixes: 4354/clusterfuzz-testcase-minimized-4671122764201984

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-11-26 18:35:55 +01:00
Michael Niedermayer
73964680d7 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_DD137iL0() 
Fixes: 4035/clusterfuzz-testcase-minimized-6479308925173760
Fixes: runtime error: signed integer overflow: 9 * 402653183 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>
 2017-11-18 11:57:57 +01:00
Michael Niedermayer
bdee75a4e7 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_53iL0() 
Fixes: runtime error: signed integer overflow: 2147483646 + 2 cannot be represented in type 'int'
Fixes: 3485/clusterfuzz-testcase-minimized-4940429332054016

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-10-10 23:58:40 +02:00
Michael Niedermayer
67da2685e0 avcodec/dirac_dwt: Fix integer overflow in COMPOSE_FIDELITYi*() 
Fixes: runtime error: signed integer overflow: 161 * 13872281 cannot be represented in type 'int'

Fixes: 3295/clusterfuzz-testcase-minimized-4738998142500864

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-09-22 12:19:07 +02:00
Michael Niedermayer
f71cd44147 avcodec/dirac_dwt: Fix multiple overflows in 9/7 lifting 
Fixes: runtime error: signed integer overflow: 1073901567 + 1073901567 cannot be represented in type 'int'
Fixes: 3124/clusterfuzz-testcase-minimized-454643435752652

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-09-02 23:50:28 +02:00
Michael Niedermayer
a5380f9c1c avcodec/dirac_dwt: Fixes integer overflows in COMPOSE_DAUB97* 
Fix multiple: runtime error: signed integer overflow: 6497 * 3409630 cannot be represented in type 'int'
Fixes: 2819/clusterfuzz-testcase-minimized-4743700301217792

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-08-08 19:25:17 +02:00
Michael Niedermayer
bf8ab72ae9 avcodec/dirac_dwt: Fix multiple integer overflows in COMPOSE_DD97iH0() 
Fixes: runtime error: signed integer overflow: 9 * 335544320 cannot be represented in type 'int'
Fixes: 2739/clusterfuzz-testcase-minimized-6737297955356672

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-07-29 16:28:22 +02:00
Timothy Gu
671761d713 diracdec: Pass DWTPlane to dwt init 2016-02-07 09:09:13 -08:00
Timothy Gu
e04912c0b6 diracdec: Split DWTPlane struct from Plane 2016-02-07 09:09:13 -08:00
Timothy Gu
58ded09bd1 dirac_dwt: Rename init2 to init 
The functions are all private.
 2016-02-07 09:09:13 -08:00
Timothy Gu
9fd6ea933f dirac_dwt: Make x86 files/functions names consistent 2016-02-05 19:30:23 -08:00
Kieran Kunhya
3f07f12f65 diracdec: Template DSP functions adding 10-bit versions 2015-12-10 18:25:02 +00:00
Reimar Döffinger
8cbf0827e1 Various small spelling fixes. 
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2014-04-22 20:44:31 +02:00
Michael Niedermayer
29852ffc64 avcodec/dirac_dwt: Remove unused ff_spatial_idwt2() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-16 16:07:29 +02:00
Michael Niedermayer
30981a966f lavc: split snow and dirac DWTs 
There is only about 4 lines of common code, so it alot cleaner
when seperated.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-14 22:59:05 +01:00