else if ( mov->mode == MODE_PSP ) put_tag(pb, "MSNV");
int mov_write_ftyp_tag(ByteIOContext *pb, AVFormatContext *s){    MOVContext *mov = s->priv_data;    put_be32(pb, 0x14 ); /* size */    put_tag(pb, "ftyp");    if ( mov->mode == MODE_3GP )        put_tag(pb, "3gp4");    else        put_tag(pb, "isom");    put_be32(pb, 0x200 );    if ( mov->mode == MODE_3GP )        put_tag(pb, "3gp4");    else        put_tag(pb, "mp41");    return 0x14;}