void raop_rtp_start(raop_rtp_t *raop_rtp, int use_udp, unsigned short control_rport, unsigned short timing_rport,
unsigned short *control_lport, unsigned short *timing_lport, unsigned short *data_lport);
void raop_rtp_set_volume(raop_rtp_t *raop_rtp, float volume);
void raop_rtp_start(raop_rtp_t *raop_rtp, int use_udp, unsigned short control_rport, unsigned short timing_rport,
unsigned short *control_lport, unsigned short *timing_lport, unsigned short *data_lport);
void raop_rtp_set_volume(raop_rtp_t *raop_rtp, float volume);