Fixes: signed integer overflow: -16 * 134217879 cannot be represented in type 'int'
Fixes: 20492/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5639509530378240
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
for (j = method + 1; j < t->length[i]; j++) {
int c, x = 0;
for (k = 0; k < method + 1; k++)
- x += code_pred_coeff[method][k] * t->coeff[i][j - k - 1];
+ x += code_pred_coeff[method][k] * (unsigned)t->coeff[i][j - k - 1];
c = get_sr_golomb_dst(gb, lsb_size);
if (x >= 0)
c -= (x + 4) / 8;