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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-17 20:17:55 +02:00

avcodec/aacdec_fixed: fix: left shift of negative value -1

Fixes: 2699/clusterfuzz-testcase-minimized-5631303862976512

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 2dfb8c417891e0cc3670f8e0791ea0c7071314fe)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-07-23 16:52:47 +02:00
parent f10252e47d
commit a930db5c82

View File

@ -430,7 +430,7 @@ static void apply_independent_coupling_fixed(AACContext *ac,
else {
for (i = 0; i < len; i++) {
tmp = (int)(((int64_t)src[i] * c + (int64_t)0x1000000000) >> 37);
dest[i] += tmp << shift;
dest[i] += tmp * (1 << shift);
}
}
}