/usr/include/sipxtapi/rtcp/RTCPConnection.h is in libsipxtapi-dev 3.3.0~test17-1.
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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 _RTCPConnection_h
#define _RTCPConnection_h
#include "rtcp/RtcpConfig.h"
// Includes
#include "NetworkChannel.h"
#include "RTCPSource.h"
#include "RTCPRender.h"
#include "RTCPTimer.h"
#include "IRTCPSession.h"
/**
*
* Class Name: CRTCPConnection
*
* Inheritance: CBaseClass - Base Class Implementation
*
*
* Interfaces: IRTCPConnection - RTCP Session Control Interface
*
* Description: The CRTCPConnection Class shall manage the instantiation of
* RTCP objects used to report and track the identity and
* performance RTP connections. At RTP connection creation time,
* the RTCPConnection will instantiate a CRTCPRender and
* CRTCPSource object and make the appropriate association
* between objects to:
* ==> Allow the RTPRender object to dispatch RTP Headers, as
* received, to the RTCPRender
* ==> Allow the RTCPSource object to receive RTCP Reports
* from the Network Source object through the INetDispatch
* interface
* ==> Allow the RTCPRender object to send RTCP Reports
* through the INetSend interface exposed by an associated
* Network Render object.
* ==> Allow the SenderReport object associated with the
* RTCPSource object to update Sender Report statistics
* within ReceiverReport object associated with the
* RTCPSource object.
*
* In addition to RTCP setup, the RTCPConnection shall coordinate
* the generation of periodic RTCP Sender, Receiver, and SDES
* Reports as well as the aperiodic generation of RTCP BYE
* Reports. The CRTCPConnection shall provide the the thread of
* execution for these activities and will use the resources of
* the various CRTCPRender objects to actually carry out report
* generation and transmission. Additionally, the CRTCPConnection
* object shall be responsible for managing registered interests
* in RTCP events both in and outside of a call in addition to be
* an intermediate dispatcher of these events.
*
*
* Notes: CRTCPConnection is derived from CBaseClass which provides
* basic Initialization and reference counting support.
*
*/
class CRTCPConnection : public CBaseClass,
// Inherits CBaseClass implementation
public CRTCPTimer,
// Inherit CTimer Class implementation
public IRTCPConnection,
// Interface exposed for RTCP Connection Control
public IRTCPNotify
// Interface exposed for RTCP Notifications
{
// Public Methods
public:
/**
*
* Method Name: CRTCPConnection() - Constructor
*
*
* Inputs: unsigned long ulSSRC - SSRC ID
* IRTCPNotify *piRTCPNotify - RTCP Event Notification Interface
* ISDESReport *piSDESReport - Local Source Description Interface
*
*
* Outputs: None
*
* Returns: None
*
* Description: Allocates the RTCP Source and Render components of an RTCP
* Connection.
*
* Usage Notes: Allocation is not normally performed at construction time but
* a flag shall be set that will be used during the
* initialization phase to determine whether all went well. This
* is being done so construction arguments do not have to be
* stored as attributes of the RTCP Session object.
*
*/
CRTCPConnection(unsigned long ulSSRC, IRTCPNotify *piRTCPNotify,
ISDESReport *piSDESReport);
/**
*
* Method Name: ~CRTCPConnection() - Destructor
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: None
*
* Description: Shall deallocated and/or release all resources which was
* acquired over the course of runtime. In particular, the
* following shall occur:
* ==> Shall release the reference to the RTCP Render object
* ==> Shall release the reference to the RTCP Source object
* ==> Shall release the reference to the RTCP Timer object
*
* Usage Notes:
*
*
*/
~CRTCPConnection(void);
/**
*
* Method Name: Initialize
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: bool
*
* Description: Performs runtime initialization that may be failure prone and
* therefore inappropriate for execution within a constructor.
* This includes the verification of construction time
* initialization as well as the instantiation of the RTCP Timer
* object.
*
* Usage Notes: This is an overload of the CBaseClass Initialize() method.
*
*/
bool Initialize(void);
/**
*
* Method Name: GetDispatchInterfaces()
*
*
* Inputs: None
*
* Outputs: INetDispatch **ppiNetDispatch
* - Interface used to route Network packets
* to the RTCP Source object
* IRTPDispatch **ppRTPDispatch
* - Interface used to route RTP Header packets to
* the RTPRender object's instance of an RTCP
* Receiver Report
* ISetSenderStatistics **piSenderStats
8 - Statistical Dispatch Interface
*
* Returns: void
*
* Description: This method allow a consumer to obtain the dispatch
* interfaces that are crucial to routing inbound RTCP and
* RTP network packets.
*
*
* Usage Notes:
*
*/
void GetDispatchInterfaces(INetDispatch **ppiNetDispatch,
IRTPDispatch **ppiRTPDispatch,
ISetSenderStatistics **piSenderStats);
/**
*
* Method Name: GetRemoteSSRC()
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: unsigned long - SSRC of remote particant
*
* Description: This method returns the remote SSRC ID associated with
* an RTCP Connection.
*
*
* Usage Notes:
*
*/
unsigned long GetRemoteSSRC(void);
bool isRemoteSSRCValid(void);
/**
*
* Method Name: GetRenderInterface()
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: IRTCPRender * - RTCP Render Interface
*
* Description: This method allows a consumer to gain access to the RTCP
* Render interface associated with a specific RTCP Connection.
*
*
* Usage Notes:
*
*/
IRTCPRender * GetRenderInterface(void);
/**
*
* Method Name: GenerateRTCPReports
*
*
* Inputs: unsigned char *puchByeReason - Reason for terminating Connection
* ssrc_t aulCSRC[] - Array of contributing sources
* unsigned long ulCSRCs - Number of contributing sources
*
* Outputs: None
*
* Returns: None
*
* Description: The GenerateRTCPReports() method is called when the RTCP
* Report Timer has expired. This method will obtain the
* interface of the CRTCPRender object and instruct it to generate
* reports. The reports generate shall be returned and shall
* result in event delivery to the RTC Manager onto subscribing
* clients.
*
* Usage Notes:
*
*
*/
void GenerateRTCPReports(unsigned char *puchByeReason = NULL,
ssrc_t aulCSRC[] = NULL,
unsigned long ulCSRCs = 0);
/**
*
* Method Name: StopRenderer
*
*
* Inputs: bool bRelease
*
* Outputs: None
*
* Returns: bool
*
* Description: Performs connection based shutdown related to the orderly
* deallocation of connection based filters.
*
* Usage Notes:
*
*/
bool StopRenderer(void);
/**
*
* Method Name: Terminate
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: bool
*
* Description: Performs connection based shutdown related to the orderly
* deallocation of connection based filters.
*
* Usage Notes: This method must be called in order for the Connection object
* and its constituents to be gracefully deallocated.
*
*/
bool Terminate(void);
/**
*
* Method Name: GetEventInterest()
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: unsigned long - Mask of Event Interests
*
* Description: The GetEventInterest() event method shall allow the
* dispatcher of notifications to access the event interests
* of a subscriber and use these wishes to dispatch RTCP event
* notifications
*
* Usage Notes:
*
*/
unsigned long GetEventInterest(void);
/**
*
* Method Name: NewSDES()
*
*
* Inputs: IGetSrcDescription *piGetSrcDescription
* - Interface to the new Source Description info
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
*
* Usage Notes:
*
*/
void NewSDES(IGetSrcDescription *piGetSrcDescription,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Method Name: UpdatedSDES()
*
*
* Inputs: IGetSrcDescription *piGetSrcDescription
* - Interface to the new Source Description info
* unsigned long ulChangeMask
* - The SDES fields that were subject to change
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void UpdatedSDES(IGetSrcDescription *piGetSrcDescription,
unsigned long ulChangeMask,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Method Name: SenderReportReceived()
*
*
* Inputs: IGetSenderStatistics *piGetSenderStatistics
* - Interface to the Sender Statistics
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void SenderReportReceived(IGetSenderStatistics *piGetSenderStatistics,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Method Name: ReceiverReportReceived()
*
*
* Inputs: IGetReceiverStatistics *piGetReceiverStatistics
* - Interface to the Receiver Statistics
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void ReceiverReportReceived(IGetReceiverStatistics *piGetReceiverStatistics,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Method Name: ByeReportReceived()
*
*
* Inputs: IGetByeInfo *piGetByeInfo
* - Interface used to retrieve Bye Report information
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void ByeReportReceived(IGetByeInfo *piGetByeInfo,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Method Name: SDESReportSent()
*
*
* Inputs: IGetSrcDescription *piGetSrcDescription
* - Interface to the local Source Description
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void SDESReportSent(IGetSrcDescription *piGetSrcDescription,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: SenderReportSent()
*
*
* Inputs: IGetSenderStatistics *piGetSenderStatistics
* - Interface to the Sender Statistics
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void SenderReportSent(IGetSenderStatistics *piGetSenderStatistics,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: ReceiverReportSent()
*
*
* Inputs: IGetReceiverStatistics *piGetReceiverStatistics
* - Interface to the Receiver Statistics
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void ReceiverReportSent(IGetReceiverStatistics *piGetReceiverStatistics,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: ByeReportSent()
*
*
* Inputs: IGetByeInfo *piGetByeInfo
* - Interface used to retrieve Bye Report information
* IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: Provides the corresponding RTCPConnection interface to the
* notification and passes it along to the subscribing Session
* Object.
*
* Usage Notes:
*
*/
void ByeReportSent(IGetByeInfo *piGetByeInfo,
IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: LocalSSRCCollision()
*
*
* Inputs: IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: The LocalSSRCCollision() event method shall inform the
* recipient of a collision between the local SSRC and one
* used by one of the remote participants.
*
* Usage Notes:
*
*/
void LocalSSRCCollision(IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: RemoteSSRCCollision()
*
*
* Inputs: IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: The RemoteSSRCCollision() event method shall inform the
* recipient of a collision between two remote participants.
*
* Usage Notes:
*
*/
void RemoteSSRCCollision(IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL) {};
/**
*
* Method Name: RTCPReportingAlarm
*
*
* Inputs: IRTCPConnection *piRTCPConnection
* - Interface to associated RTCP Connection
* IRTCPSession *piRTCPSession
* - Interface to associated RTCP Session
*
* Outputs: None
*
* Returns: None
*
* Description: The RTCPReportingAlarm() event method shall inform the
* recipient of the expiration of the RTCP Reporting Timer.
* This signals the generation of the next round of RTCP Reports.
*
* Usage Notes:
*
*
*/
void RTCPReportingAlarm(IRTCPConnection *piRTCPConnection=NULL,
IRTCPSession *piRTCPSession=NULL);
/**
*
* Macro Name: DECLARE_IBASE_M
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: None
*
* Description: This implements the IBaseClass functions used and exposed by
* derived classes.
*
* Usage Notes:
*
*
*/
DECLARE_IBASE_M
private: // Private Data Members
#ifdef PINGTEL_OSSOCKET
/**
*
* Method Name: StartRenderer()
*
*
* Inputs: OsSocket& rRtcpSocket - Reference to an RTCP Socket object
*
* Outputs: None
*
* Returns: bool - Result of Starting the Renderer
*
* Description: This method starts the RTCP Renderer allowing it to generate
* RTCP reports on regular intervals.
*
*
* Usage Notes:
*
*/
bool StartRenderer(OsSocket& rRtcpSocket);
#else
bool StartRenderer(INetworkRender *piNetworkRender);
#endif
/**
*
* Attribute Name: m_ulSSRC
*
* Type: unsigned long
*
* Description: This member shall cache the SSRC associated with
* this connection
*
*/
unsigned long m_ulSSRC;
/**
*
* Attribute Name: m_piRTCPNetworkRender
*
* Type: INetworkRender *
*
* Description: This member shall store the interface to the
* CNetworkChannel wrapper to the Pingtel OSSocket object.
*
*/
INetworkRender *m_piRTCPNetworkRender;
/**
*
* Attribute Name: m_piRTCPNotify
*
* Type: IRTCPNotify *
*
* Description: This member shall contain the interface for delivering
* notification to a registered consumer.
*
*/
IRTCPNotify * m_piRTCPNotify;
/**
*
* Attribute Name: m_piSDESReport
*
* Type: ISDESReport *
*
* Description: This member shall cache the control interface for the
* Source Description report that identifies the local site.
*
*/
ISDESReport *m_piSDESReport;
/**
*
* Attribute Name: m_ulEventInterest
*
* Type: unsigned long
*
* Description: This member shall store the events of interest for this
* Session object.
*
*/
unsigned long m_ulEventInterest;
/**
*
* Attribute Name: m_poRTCPRender
*
* Type: CRTCPRender *
*
* Description: This member shall store an instance to the
* RTCP Render object.
*
*/
CRTCPRender *m_poRTCPRender;
/**
*
* Attribute Name: m_poRTCPSource
*
* Type: CRTCPSource *
*
* Description: This member shall store an instance to the RTCP Source object.
*
*/
CRTCPSource *m_poRTCPSource;
};
/**
*
* Method Name: GetRemoteSSRC()
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: unsigned long - SSRC of remote particant
*
* Description: This method returns the remote SSRC ID associated
* with an RTCP Connection.
*
*
* Usage Notes:
*
*/
inline unsigned long CRTCPConnection::GetRemoteSSRC(void) { return ((m_poRTCPRender) ? (m_poRTCPRender->GetRemoteSSRC()) : 0); }
inline bool CRTCPConnection::isRemoteSSRCValid(void) { return ((m_poRTCPRender) ? (m_poRTCPRender->isRemoteSSRCValid()) : 0); }
/**
*
* Method Name: GetEventInterest()
*
*
* Inputs: None
*
* Outputs: None
*
* Returns: unsigned long - Mask of Event Interests
*
* Description: The GetEventInterest() event method shall allow the
* dispatcher of notifications to access the event interests of
* a subscriber and use these wishes to dispatch RTCP event
* notifications
*
* Usage Notes:
*
*/
inline unsigned long CRTCPConnection::GetEventInterest(void)
{
return(m_ulEventInterest);
}
#endif
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