int err;
static int parse_mdat(MOVParseTableEntry *parse_table, ByteIOContext *pb, UINT32 atom_type, INT64 atom_offset, INT64 atom_size, void *param){    int err;    MOVContext *c;#ifdef DEBUG    print_atom("mdat", atom_type, atom_offset, atom_size);#endif    c = (MOVContext *)param;    if(atom_size == 0) /* wrong one (MP4) */        return 0;    c->found_mdat=1;    c->mdat_offset = atom_offset;    c->mdat_size = atom_size;    if(c->found_moov)        return 1; /* found both, just go */    url_fskip(pb, atom_size);    return 0; /* now go for moov */}