Fixes: signed integer overflow: -1498310196 - 902891776 cannot be represented in type 'int'
Fixes: 28445/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1IMAGE_fuzzer-5075163389493248
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
#define R_SHIFT 11
static inline void idct4row(int16_t *row)
{
- int c0, c1, c2, c3, a0, a1, a2, a3;
+ unsigned c0, c1, c2, c3;
+ int a0, a1, a2, a3;
a0 = row[0];
a1 = row[1];