Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 1 | #ifndef _OSMO_ORTP_H |
| 2 | #define _OSMO_ORTP_H |
| 3 | |
| 4 | #include <stdint.h> |
| 5 | |
| 6 | #include <osmocom/core/linuxlist.h> |
| 7 | #include <osmocom/core/select.h> |
| 8 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 9 | /* we cannot include ortp/ortp.h here, as they also use 'struct msgb' */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 10 | struct _RtpSession; |
| 11 | |
Harald Welte | ddfaca4 | 2011-09-07 11:52:43 +0200 | [diff] [blame^] | 12 | /*! \brief default duration of a 20ms GSM codec frame */ |
| 13 | #define GSM_RTP_DURATION 160 |
| 14 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 15 | /*! \brief standard payload type for GSM Full Rate (FR) */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 16 | #define RTP_PT_GSM_FULL 3 |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 17 | /*! \brief Osmocom pseudo-static paylaod type for Half Rate (HR) */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 18 | #define RTP_PT_GSM_HALF 96 |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 19 | /*! \brief Osmocom pseudo-static paylaod type for Enhanced Full Rate (EFR) */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 20 | #define RTP_PT_GSM_EFR 97 |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 21 | /*! \brief Osmocom pseudo-static paylaod type for Adaptive Multi Rate (AMR) */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 22 | #define RTP_PT_AMR 98 |
| 23 | |
Harald Welte | ddfaca4 | 2011-09-07 11:52:43 +0200 | [diff] [blame^] | 24 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 25 | /*! \brief Flag to indicate the socket is in polling-only mode */ |
Harald Welte | 9b737df | 2011-09-07 00:59:11 +0200 | [diff] [blame] | 26 | #define OSMO_RTP_F_POLL 0x0001 |
| 27 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 28 | /*! \brief A structure representing one RTP socket */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 29 | struct osmo_rtp_socket { |
| 30 | /*! \biref list header for global list of sockets */ |
| 31 | struct llist_head list; |
| 32 | |
| 33 | /*! \brief libortp RTP session pointer */ |
| 34 | struct _RtpSession *sess; |
| 35 | /*! \brief Osmo file descriptor for RTP socket FD */ |
| 36 | struct osmo_fd rtp_bfd; |
| 37 | /*! \brief Osmo file descriptor for RTCP socket FD */ |
| 38 | struct osmo_fd rtcp_bfd; |
| 39 | |
| 40 | /*! \brief callback for incoming data */ |
| 41 | void (*rx_cb)(struct osmo_rtp_socket *rs, const uint8_t *payload, |
| 42 | unsigned int payload_len); |
| 43 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 44 | /*! \brief Receive user timestamp, to be incremented by user */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 45 | uint32_t rx_user_ts; |
| 46 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 47 | /*! \brief Transmit timestamp, incremented by library */ |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 48 | uint32_t tx_timestamp; |
| 49 | |
Harald Welte | fcb1fe8 | 2011-09-07 11:51:52 +0200 | [diff] [blame] | 50 | /*! \brief Flags like OSMO_RTP_F_POLL */ |
Harald Welte | 9b737df | 2011-09-07 00:59:11 +0200 | [diff] [blame] | 51 | unsigned int flags; |
| 52 | |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 53 | void *priv; |
| 54 | }; |
| 55 | |
| 56 | void osmo_rtp_init(void *ctx); |
Harald Welte | 9b737df | 2011-09-07 00:59:11 +0200 | [diff] [blame] | 57 | struct osmo_rtp_socket *osmo_rtp_socket_create(void *talloc_ctx, unsigned int flags); |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 58 | int osmo_rtp_socket_bind(struct osmo_rtp_socket *rs, const char *ip, int port); |
| 59 | int osmo_rtp_socket_connect(struct osmo_rtp_socket *rs, const char *ip, uint16_t port); |
| 60 | int osmo_rtp_socket_set_pt(struct osmo_rtp_socket *rs, int payload_type); |
| 61 | int osmo_rtp_socket_free(struct osmo_rtp_socket *rs); |
| 62 | int osmo_rtp_send_frame(struct osmo_rtp_socket *rs, const uint8_t *payload, |
| 63 | unsigned int payload_len, unsigned int duration); |
Harald Welte | 9b737df | 2011-09-07 00:59:11 +0200 | [diff] [blame] | 64 | int osmo_rtp_socket_poll(struct osmo_rtp_socket *rs); |
Harald Welte | 41d0d84 | 2011-09-03 15:33:24 +0200 | [diff] [blame] | 65 | |
| 66 | int osmo_rtp_get_bound_ip_port(struct osmo_rtp_socket *rs, |
| 67 | uint32_t *ip, int *port); |
| 68 | int osmo_rtp_get_bound_addr(struct osmo_rtp_socket *rs, |
| 69 | const char **addr, int *port); |
| 70 | |
| 71 | #endif /* _OSMO_ORTP_H */ |