/*
 * Copyright (C) 2002-2003 Fhg Fokus
 *
 * This file is part of SEMS, a free SIP media server.
 *
 * SEMS is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version. This program is released under
 * the GPL with the additional exemption that compiling, linking,
 * and/or using OpenSSL is allowed.
 *
 * For a license to use the SEMS software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact iptel.org by e-mail at the following addresses:
 *    info@iptel.org
 *
 * SEMS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/** @file AmRtpPacket.h */
#ifndef _AmRtpPacket_h_
#define _AmRtpPacket_h_

#include <sys/time.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <memory>

using std::shared_ptr;

class AmRtpPacketTracer;
class AmRtpTransport;

class msg_logger;

/** \brief RTP packet implementation */
class AmRtpPacket {

  unsigned char  buffer[4096];
  unsigned int   b_size;

  unsigned int   data_offset;
  unsigned int   d_size;

public:
  unsigned char  payload;
  bool           marker;
  unsigned short sequence;    
  unsigned int   timestamp;   
  unsigned int   ssrc;
  unsigned char  version;

  struct timeval recv_time;

  AmRtpPacket();
  ~AmRtpPacket();

  // returns -1 if error, else 0
  int compile(unsigned char* data_buf, unsigned int size);
  // returns -1 if error, else 0
  int compile_raw(unsigned char* data_buf, unsigned int size);

  int parse();

  unsigned int   getDataSize() const { return d_size; }
  unsigned char* getData();

  unsigned int   getBufferSize() const { return b_size; }
  unsigned char* getBuffer();
  void setBufferSize(unsigned int b) { b_size = b; }

  static bool isPacketRtp(unsigned char *buffer, size_t len);
  static bool isPacketRtcp(unsigned char *buffer, size_t len);
};

#endif


