| #ifndef _OSMO_ORTP_H |
| #define _OSMO_ORTP_H |
| |
| #include <stdint.h> |
| |
| #include <osmocom/core/linuxlist.h> |
| #include <osmocom/core/select.h> |
| |
| /* we cannot include ortp/ortp.h here, as they also use 'struct msgb' */ |
| struct _RtpSession; |
| |
| /*! \brief default duration of a 20ms GSM codec frame */ |
| #define GSM_RTP_DURATION 160 |
| |
| /*! \brief standard payload type for GSM Full Rate (FR) */ |
| #define RTP_PT_GSM_FULL 3 |
| /*! \brief Osmocom pseudo-static paylaod type for Half Rate (HR) */ |
| #define RTP_PT_GSM_HALF 96 |
| /*! \brief Osmocom pseudo-static paylaod type for Enhanced Full Rate (EFR) */ |
| #define RTP_PT_GSM_EFR 97 |
| /*! \brief Osmocom pseudo-static paylaod type for Adaptive Multi Rate (AMR) */ |
| #define RTP_PT_AMR 98 |
| |
| /*! \brief Parameter to osmo_rtp_socket_param_set() */ |
| enum osmo_rtp_param { |
| OSMO_RTP_P_JITBUF = 1, |
| OSMO_RTP_P_JIT_ADAP, |
| }; |
| |
| /*! \brief Flag to indicate the socket is in polling-only mode */ |
| #define OSMO_RTP_F_POLL 0x0001 |
| #define OSMO_RTP_F_DISABLED 0x0002 |
| |
| /*! \brief A structure representing one RTP socket */ |
| struct osmo_rtp_socket { |
| /*! \biref list header for global list of sockets */ |
| struct llist_head list; |
| |
| /*! \brief libortp RTP session pointer */ |
| struct _RtpSession *sess; |
| /*! \brief Osmo file descriptor for RTP socket FD */ |
| struct osmo_fd rtp_bfd; |
| /*! \brief Osmo file descriptor for RTCP socket FD */ |
| struct osmo_fd rtcp_bfd; |
| |
| /*! \brief callback for incoming data */ |
| void (*rx_cb)(struct osmo_rtp_socket *rs, const uint8_t *payload, |
| unsigned int payload_len); |
| |
| /*! \brief Receive user timestamp, to be incremented by user */ |
| uint32_t rx_user_ts; |
| |
| /*! \brief Transmit timestamp, incremented by library */ |
| uint32_t tx_timestamp; |
| |
| /*! \brief Flags like OSMO_RTP_F_POLL */ |
| unsigned int flags; |
| |
| void *priv; |
| }; |
| |
| void osmo_rtp_init(void *ctx); |
| struct osmo_rtp_socket *osmo_rtp_socket_create(void *talloc_ctx, unsigned int flags); |
| int osmo_rtp_socket_bind(struct osmo_rtp_socket *rs, const char *ip, int port); |
| int osmo_rtp_socket_connect(struct osmo_rtp_socket *rs, const char *ip, uint16_t port); |
| int osmo_rtp_socket_set_pt(struct osmo_rtp_socket *rs, int payload_type); |
| int osmo_rtp_socket_free(struct osmo_rtp_socket *rs); |
| int osmo_rtp_send_frame(struct osmo_rtp_socket *rs, const uint8_t *payload, |
| unsigned int payload_len, unsigned int duration); |
| int osmo_rtp_socket_poll(struct osmo_rtp_socket *rs); |
| |
| int osmo_rtp_get_bound_ip_port(struct osmo_rtp_socket *rs, |
| uint32_t *ip, int *port); |
| int osmo_rtp_get_bound_addr(struct osmo_rtp_socket *rs, |
| const char **addr, int *port); |
| int osmo_rtp_socket_set_param(struct osmo_rtp_socket *rs, |
| enum osmo_rtp_param param, int val); |
| |
| void osmo_rtp_socket_log_stats(struct osmo_rtp_socket *rs, |
| int subsys, int level, |
| const char *pfx); |
| |
| void osmo_rtp_socket_stats(struct osmo_rtp_socket *rs, |
| uint32_t *sent_packets, uint32_t *sent_octets, |
| uint32_t *recv_packets, uint32_t *recv_octets, |
| uint32_t *recv_lost, uint32_t *last_jitter); |
| |
| |
| #endif /* _OSMO_ORTP_H */ |