rtp.h

音频编码

#ifndef LAME_RTP_H
#define LAME_RTP_H

#include <sys/socket.h>
#include <netinet/in.h>

struct rtpbits {
  int sequence:16;	/* sequence number: random */
  int pt:7;	/* payload type: 14 for MPEG audio */
  int m:1;	/* marker: 0 */
  int cc:4;	/* number of CSRC identifiers: 0 */
  int x:1;	/* number of extension headers: 0 */
  int p:1;	/* is there padding appended: 0 */
  int v:2;	/* version: 2 */
};

struct rtpheader {      /* in network byte order */
  struct rtpbits b;
  int timestamp;        /* start: random */
  int ssrc;             /* random */
  int iAudioHeader;	/* =0?! */
};

void initrtp(struct rtpheader *foo);
int sendrtp(int fd, struct sockaddr_in *sSockAddr, struct rtpheader *foo, const void *data, int len);
int makesocket(char *szAddr,unsigned short port,unsigned char TTL,struct sockaddr_in *sSockAddr);
void rtp_output(const char *mp3buffer,int mp3size);

#if 0
int rtp_send (
    SOCKET s,
    struct rtpheader *foo,
    void *data,
    int len
) ;

int rtp_socket (
    SOCKET *ps,
    char *Address,
    unsigned short port,
    int TTL
) ;
#endif


#endif