rtcp_defs.h

/*
 * Some definitions for RTCP, just enough to implement SR and RR
 * generation and parsing in twrtp.
 */
 
#pragma once
 
#include <stdint.h>
 
struct rtcp_sr_rr_hdr {
        uint8_t         v_p_rc;
        uint8_t         pt;
        uint16_t        len;
        uint32_t        ssrc;
} __attribute__((packed));
 
struct rtcp_sr_block {
        uint32_t        ntp_sec;
        uint32_t        ntp_fract;
        uint32_t        rtp_ts;
        uint32_t        pkt_count;
        uint32_t        octet_count;
} __attribute__((packed));
 
struct rtcp_rr_block {
        uint32_t        ssrc;
        uint32_t        lost_word;
        uint32_t        max_seq_ext;
        uint32_t        jitter;
        uint16_t        lsr_sec;
        uint16_t        lsr_fract;
        uint16_t        dlsr_sec;
        uint16_t        dlsr_fract;
} __attribute__((packed));
 
#define RTCP_PT_SR      200
#define RTCP_PT_RR      201
#define RTCP_PT_SDES    202
#define RTCP_PT_BYE     203
#define RTCP_PT_APP     204
 
#define SDES_ITEM_CNAME 1
#define SDES_ITEM_NAME  2
#define SDES_ITEM_EMAIL 3
#define SDES_ITEM_PHONE 4
#define SDES_ITEM_LOC   5
#define SDES_ITEM_TOOL  6
#define SDES_ITEM_NOTE  7
#define SDES_ITEM_PRIV  8