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15 Commits

Author SHA1 Message Date
Michael Niedermayer
0e5946d5b2 avcodec/aacsbr_fixed: Fix integer overflow in sbr_hf_assemble() 
Fixes: runtime error: signed integer overflow: 2052929346 + 204817098 cannot be represented in type 'int'

This was missed in b1bef755f617af9685b592d866b3eb7f3c4b02b1
Fixes: 5275/clusterfuzz-testcase-minimized-5367635958038528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c837918f50a7bbd6150afd340857ea43fe4717c7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
a97335b1b3 avcodec/aacsbr_fixed: Fix overflows in rounding in sbr_hf_assemble() 
Fixes: runtime error: signed integer overflow: 2052929346 + 204817098 cannot be represented in type 'int'
Fixes: 5275/clusterfuzz-testcase-minimized-5367635958038528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b1bef755f617af9685b592d866b3eb7f3c4b02b1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2018-04-13 00:35:15 +02:00
Michael Niedermayer
67208cf992 avcodec/aacsbr_fixed: Fix division by zero in sbr_gain_calc() 
Fixes: 3642/clusterfuzz-testcase-minimized-5443853801750528

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7d1dec466895eed12f2c79b7ab5447f5390fe869)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-12-30 21:11:31 +01:00
Michael Niedermayer
3c98e4be89 avcodec/aacsbr_fixed: Check shift in sbr_hf_assemble() 
Fixes: runtime error: shift exponent -10 is negative

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d1992448d37f7cfa2acda5cc729dc0ff1b019390)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-07-19 15:26:37 +02:00
Michael Niedermayer
9c65a87bd4 avcodec/aacsbr_fixed: Fix multiple runtime error: shift exponent 170 is too large for 32-bit type 'int' 
Fixes part of 1709/clusterfuzz-testcase-minimized-4513580554649600

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6310fc714de3cd73848416ead73228fcef8b6dc0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-02 01:14:38 +02:00
Michael Niedermayer
f3b6ea1408 avcodec/aacsbr_fixed: Fix multiple runtime error: shift exponent 150 is too large for 32-bit type 'int' 
Fixes: 1681/clusterfuzz-testcase-minimized-5970545365483520

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3fb104f4476ad238e2ca768e9b80dc314e6e856d)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-02 01:14:38 +02:00
Michael Niedermayer
b78885a3c5 avcodec/aacsbr: Split the env_facs table 
This also removes a #ifdef and special case for the fixed point case

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-12-12 12:19:07 +01:00
Michael Niedermayer
8eadabf941 avcodec/aacsbr_fixed: Replace a noise_facs_q check by an av_assert0 
The replaced check should have become redundant

Found-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-11-20 03:46:43 +01:00
Michael Niedermayer
bfd0e02dd6 avcodec/aacsbr: Split pre dequantization noise factors table 
This allows removing a special case for the fixed point decoder and will
make error checks simpler

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-11-19 13:12:20 +01:00
Andreas Cadhalpun
0e36a14a42 aacsbr_fixed: check for envelope scalefactors overflowing 
This prevents various values from getting an insanely huge exponent.
If someone knows a cleaner solution, thats welcome!

This is similar to commit 8978c74 for aacsbr.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-11-11 21:49:51 +01:00
Michael Niedermayer
8a024f6a43 avcodec/aacsbr_fixed: Try to initialize sum[0..1] differently to fix build with VS2012 
Found-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-11-10 13:34:27 +01:00
Michael Niedermayer
dcf1cf5d24 avcodec/aacsbr: Use FLOAT_0 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-11-08 11:05:48 +01:00
Timothy Gu
e10ef3289d aacsbr_fixed: Make fixed_{exp,log}_table static const 2015-08-22 08:36:20 -07:00
Ganesh Ajjanagadde
c3052c9e8a avcodec/aacsbr_fixed: remove unused variable 
Fixes -Wunused-const-variable from
http://fate.ffmpeg.org/report.cgi?time=20150820031140&slot=arm64-darwin-clang-apple-5.1

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-08-20 21:23:51 +02:00
Djordje Pesut
f85bc147fb avcodec: Implementation of AAC_fixed_decoder (SBR-module) 
Add fixed poind code.

Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-20 17:20:16 +02:00