Fixes: 1503/clusterfuzz-testcase-minimized-
5369271855087616
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
a4 = W0 * b[0] - W0 * b[4];
/* step 2 */
- s1 = (181 * (a1 - a5 + a7 - a3) + 128) >> 8; // 1, 3, 5, 7
- s2 = (181 * (a1 - a5 - a7 + a3) + 128) >> 8;
+ s1 = (int)(181U * (a1 - a5 + a7 - a3) + 128) >> 8; // 1, 3, 5, 7
+ s2 = (int)(181U * (a1 - a5 - a7 + a3) + 128) >> 8;
/* step 3 */
b[0] = (a0 + a2 + a1 + a5 + (1 << 7)) >> 8;