nbring.c

mgcp协议源代码。支持多种编码：g711

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include "ixjuser.h"

int main(int argc, char *argv[])
{
  int ixj, dsp, ver, cadence;
  char pname[80];

  if(argc >= 2)
    sprintf(pname, "/dev/ixj%s", argv[1]);
  else
    sprintf(pname, "/dev/ixj0");

  ixj = open(pname, O_RDWR);

  dsp = ioctl(ixj, IXJCTL_DSP_TYPE);
  ver = ioctl(ixj, IXJCTL_DSP_VERSION);
  printf("DSP type 0x%x, DSP Version 0x%x\n", dsp, ver);

  if(argc >= 3)
    ioctl(ixj, IXJCTL_RING_CADENCE, atoi(argv[2]));

  ioctl(ixj, IXJCTL_RING_START);
  printf("Press enter to stop ringing\n");
  getchar();
  ioctl(ixj, IXJCTL_RING_STOP);
  close(ixj);
}