avio_rb32(pb); /* Max samples. */
thp->fps = av_d2q(av_int2float(avio_rb32(pb)), INT_MAX);
+ if (thp->fps.den <= 0 || thp->fps.num < 0)
+ return AVERROR_INVALIDDATA;
thp->framecnt = avio_rb32(pb);
thp->first_framesz = avio_rb32(pb);
pb->maxsize = avio_rb32(pb);