RTCPHeader.h

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//
// Copyright (C) 2006-2013 SIPez LLC.  All rights reserved.
//
// Copyright (C) 2004-2006 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// Copyright (C) 2004-2006 Pingtel Corp.  All rights reserved.
// Licensed to SIPfoundry under a Contributor Agreement.
//
// $$


//  Border Guard
#ifndef _RTCPHeader_h
#define _RTCPHeader_h

#include "rtcp/RtcpConfig.h"

//  Includes
#include "BaseClass.h"
#include "IRTCPHeader.h"


// Defines
#define MAX_SOURCE_LENGTH   256 // Max Length of a NULL terminated SDES element
#define HEADER_LENGTH         8 // Header Size

#define PAYLOAD_OFFSET        1
#define LENGTH_OFFSET         2
#define SSRC_OFFSET           4
#define COUNT_MASK         0x1F


class CRTCPHeader
{

//  Public Methods
public:

    CRTCPHeader(ssrc_t ulSSRC,
                RTCP_REPORTS_ET etPayloadType,
                unsigned long ulVersion=2);



    virtual ~CRTCPHeader(void);

    static int VetPacket(unsigned char* buffer, int bufferLen);

    virtual unsigned long GetHeaderLength(void);

    virtual unsigned long GetVersion(void);

    virtual unsigned long GetPadding(void);

    virtual RTCP_REPORTS_ET GetPayload(void);


    virtual unsigned long GetReportCount(void);


    virtual unsigned long GetReportLength(void);

    virtual ssrc_t GetSSRC(void);

    virtual void SetSSRC(ssrc_t ulSSRC);

    virtual bool IsOurSSRC(ssrc_t ulSSRC);

protected:   // Protected Methods


    unsigned long FormatRTCPHeader(unsigned char *puchRTCPBuffer,
                                   unsigned long ulPadding,
                                   unsigned long ulCount,
                                   unsigned long ulPayloadLength);


    bool ParseRTCPHeader(unsigned char *puchRTCPBuffer);



protected:      // Protected Data Members



      unsigned long m_ulVersion;

      unsigned long m_ulPadding;

      unsigned long m_ulCount;


      RTCP_REPORTS_ET m_etPayloadType;

      unsigned long m_ulLength;

      unsigned long m_ulSSRC;


};


#endif