static int mxf_read_content_storage(void *arg, AVIOContext *pb, int tag, int size, UID uid, int64_t klv_offset)
{
    MXFContext *mxf = arg;
    switch (tag) {
    case 0x1901:
        mxf->packages_count = avio_rb32(pb);
        mxf->packages_refs = av_calloc(mxf->packages_count, sizeof(UID));
        if (!mxf->packages_refs)
            return AVERROR(ENOMEM);
        avio_skip(pb, 4); /* useless size of objects, always 16 according to specs */
        avio_read(pb, (uint8_t *)mxf->packages_refs, mxf->packages_count * sizeof(UID));
        break;
    }
    return 0;
}
Unknown