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7 Commits

Author SHA1 Message Date
Michael Niedermayer
9ce4350c48 avcodec/aacdec_template: Fix undefined integer overflow in apply_tns() 
Fixes: runtime error: signed integer overflow: -2147483648 - 1202286525 cannot be represented in type 'int'
Fixes: 2071/clusterfuzz-testcase-minimized-6036414271586304

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 0ef8f03133a0bd83c74200a8cf30982c0f574016)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-07-19 15:26:37 +02:00
Michael Niedermayer
b578ba915f avcodec/aac_defines: Add missing () to AAC_HALF_SUM() macro 
Fixes: runtime error: shift exponent 1073741848 is too large for 32-bit type 'INTFLOAT' (aka 'int')
Fixes: 1880/clusterfuzz-testcase-minimized-4900645322620928

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 872bac81590ccbec40ba7ad203421d9e38d1b253)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-02 01:14:38 +02:00
Michael Niedermayer
f832d7361d avcodec/aac_defines: Fix: runtime error: left shift of negative value -2 
Fixes: 1716/clusterfuzz-testcase-minimized-4691012196761600

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 c3547dcbc326474745f02a618e01848a293f3f92)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-02 01:14:38 +02:00
Marton Balint
67bef4cffa avcodec/aactab: do not use floats for constants 
This may improve the precision of the fixed point encoder/decoder for some
compilers and architectures.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>
 2016-03-15 00:47:38 +01:00
Ganesh Ajjanagadde
5472de5ca8 avcodec/aac_defines: replace #define by typedef 
See e.g https://stackoverflow.com/questions/1666353/are-typedef-and-define-the-same-in-c
for rationale.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-11-24 20:36:40 -05:00
Djordje Pesut
5fd81cf6f0 avcodec: Implementation of AAC_fixed_decoder (PS-module) 
Add fixed point implementation.

Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-22 21:51:28 +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