Fixes: 1352/clusterfuzz-testcase-minimized-
5757565017260032
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
int st, ct;
idx = a >> 26;
- sign = (idx << 27) >> 31;
+ sign = (int32_t)((unsigned)idx << 27) >> 31;
cv = av_costbl_1_sf[idx & 0xf];
cv = (cv ^ sign) - sign;
idx -= 8;
- sign = (idx << 27) >> 31;
+ sign = (int32_t)((unsigned)idx << 27) >> 31;
sv = av_costbl_1_sf[idx & 0xf];
sv = (sv ^ sign) - sign;