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avcodec/aac_defines: Fix: runtime error: left shift of negative value -2

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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>
This commit is contained in:
Michael Niedermayer 2017-05-21 02:51:04 +02:00
parent d66193252b
commit c3547dcbc3
1 changed files with 1 additions and 1 deletions
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libavcodec/aac_defines.h
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@ -45,7 +45,7 @@ typedef int AAC_SIGNE;
#define Q30(x) (int)((x)*1073741824.0 + 0.5)
#define Q31(x) (int)((x)*2147483648.0 + 0.5)
#define RANGE15(x) x
#define GET_GAIN(x, y) (-(y) << (x)) + 1024
#define GET_GAIN(x, y) (-(y) * (1 << (x))) + 1024
#define AAC_MUL16(x, y) (int)(((int64_t)(x) * (y) + 0x8000) >> 16)
#define AAC_MUL26(x, y) (int)(((int64_t)(x) * (y) + 0x2000000) >> 26)
#define AAC_MUL30(x, y) (int)(((int64_t)(x) * (y) + 0x20000000) >> 30)