rtp_server.h

RTP Proxy,用于Voip网络数据的代理传递

/*
 * Copyright (c) 2004-2006 Maxim Sobolev <[e-mail]>
 * Copyright (c) 2006-2007 Sippy Software, Inc., http://www.sippysoft.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $Id: rtp_server.h,v 1.4 2008/03/31 23:42:11 sobomax Exp $
 *
 */

#ifndef _RTP_SERVER_H_
#define _RTP_SERVER_H_

#include <sys/types.h>

#include "rtp.h"
#include "rtpp_defines.h"
#include "rtpp_session.h"

struct rtp_server {
    double btime;
    unsigned char buf[1024];
    rtp_hdr_t *rtp;
    unsigned char *pload;
    int fd;
    int loop;
};

#define	RTPS_LATER	(0)
#define	RTPS_EOF	(-1)
#define	RTPS_ERROR	(-2)

/*
 * Minimum length of each RTP packet in ms.
 * Actual length may differ due to codec's framing constrains.
 */
#define	RTPS_TICKS_MIN	10

#define	RTPS_SRATE	8000

struct rtp_server *rtp_server_new(const char *, rtp_type_t, int);
void rtp_server_free(struct rtp_server *);
int rtp_server_get(struct rtp_server *, double);
void append_server(struct cfg *, struct rtpp_session *);

#endif