It appears no valid file uses this, so this is not testable with
a valid file.
Fixes: assertion failure
Fixes: 16187/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VORBIS_fuzzer-5638880618872832
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
return AVERROR_INVALIDDATA;
}
- av_assert0(vr->classifications > 1); //needed for inverse[]
-
+ if (vr->classifications == 1) {
+ for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
+ if (i < ptns_to_read)
+ vr->classifs[p + i] = 0;
+ }
+ } else {
for (i = partition_count + c_p_c - 1; i >= partition_count; i--) {
temp2 = (((uint64_t)temp) * inverse_class) >> 32;
vr->classifs[p + i] = temp - temp2 * vr->classifications;
temp = temp2;
}
+ }
}
p += ptns_to_read;
}