AVStream *st;
uint32_t tag = 0;
int found_data, ret;
- int64_t size;
+ int64_t size, pos;
avio_skip(pb, 8); /* magic, version, file flags */
tag = avio_rb32(pb);
size = avio_rb64(pb);
+ pos = avio_tell(pb);
if (url_feof(pb))
break;
case MKBETAG('f','r','e','e'):
if (size < 0)
return AVERROR_INVALIDDATA;
- avio_skip(pb, size);
break;
}
+
+ if (size > 0) {
+ if (pos + size < pos)
+ return AVERROR_INVALIDDATA;
+ avio_skip(pb, FFMAX(0, pos + size - avio_tell(pb)));
+ }
}
if (!found_data)