5 Commits

Author SHA1 Message Date
Michael Niedermayer
8618061a4f
avcodec/alacdsp: Make intermediates unsigned
Fixes: signed integer overflow: -14914387 + -2147418648 cannot be represented in type 'int'
Fixes: 46464/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-474307197311385

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 8709f4c10a216cb3e11564bc392841e832f8e3b1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-10-21 22:19:37 +02:00
Michael Niedermayer
3541d4960b avcodec/alacdsp: fix integer overflow in decorrelate_stereo()
Fixes: signed integer overflow: -16777216 * 131 cannot be represented in type 'int'
Fixes: 23835/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5669943160078336
Fixes: 41101/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-4636330705944576

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 68457c1e85122ffcadb0c909070dd210095fd2cd)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2022-01-13 22:51:18 +01:00
Michael Niedermayer
e2a3317510 avcodec/alacdsp: Fix invalid shift in append_extra_bits()
Fixes: left shift of negative value -1
Fixes: 21390/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-6242539519868928

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 49ae034b42234486712a02f9b00253a0975cea02)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-07-01 12:49:26 +02:00
James Almer
72254b19b8 x86/alacdsp: add simd optimized functions
Signed-off-by: James Almer <jamrial@gmail.com>
2015-10-06 20:22:00 -03:00
James Almer
b70566d6ca avcodec/alacdec: split off decorrelate_stereo and append_extra_bits as alacdsp
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
2015-10-04 14:10:05 -03:00