/*
 * In this module we implement our RTP handling: obtaining a PSTN-side
 * RTP endpoint from themwi-rtp-mgr, then handling read select on RTP
 * and RTCP UDP sockets.
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include "../include/tmgw_const.h"
#include "../librtpalloc/rtp_alloc_simple.h"

struct sockaddr_in rtp_local_addr;
int rtp_udp_fd, rtcp_udp_fd;

static int got_some_rtp, got_some_rtcp;

void
obtain_rtp_endp()
{
	int rc;
	struct rtp_alloc_simple res;

	rc = rtp_alloc_simple(TMGW_EP_TYPE_PSTN_ONLY, &res);
	if (rc < 0)
		exit(1);	/* error msg already printed */
	bcopy(&res.pstn_addr, &rtp_local_addr, sizeof(struct sockaddr_in));
	rtp_udp_fd = res.pstn_rtp_fd;
	rtcp_udp_fd = res.pstn_rtcp_fd;
}

void
rtp_rx_select()
{
	u_char buf[512];

	recv(rtp_udp_fd, buf, sizeof buf, 0);
	if (!got_some_rtp) {
		printf("Got some RTP\n");
		got_some_rtp = 1;
	}
}

void
rtcp_rx_select()
{
	u_char buf[512];

	recv(rtcp_udp_fd, buf, sizeof buf, 0);
	if (!got_some_rtcp) {
		printf("Got some RTCP\n");
		got_some_rtcp = 1;
	}
}