#include <channels.h>

Inheritance diagram for H323_RealTimeChannel:

Collaboration diagram for H323_RealTimeChannel:

Public Member Functions
Construction
	H323_RealTimeChannel (H323Connection &connection, const H323Capability &capability, Directions direction)

Overrides from class H323Channel
virtual PBoolean	OnSendingPDU (H245_OpenLogicalChannel &openPDU) const

virtual void	OnSendOpenAck (const H245_OpenLogicalChannel &open, H245_OpenLogicalChannelAck &ack) const

virtual void	OnSendOpenAck (H245_H2250LogicalChannelAckParameters &param) const

virtual PBoolean	OnReceivedPDU (const H245_OpenLogicalChannel &pdu, unsigned &errorCode)

virtual PBoolean	OnReceivedAckPDU (const H245_OpenLogicalChannelAck &pdu)

Operations
virtual PBoolean	OnSendingPDU (H245_H2250LogicalChannelParameters &param) const

virtual PBoolean	OnSendingAltPDU (H245_ArrayOf_GenericInformation &alternate) const =0

virtual PBoolean	OnReceivedPDU (const H245_H2250LogicalChannelParameters &param, unsigned &errorCode)

virtual PBoolean	OnReceivedAckPDU (const H245_H2250LogicalChannelAckParameters &param)

RTP_DataFrame::PayloadTypes	GetDynamicRTPPayloadType () const

Public Member Functions inherited from H323UnidirectionalChannel
	H323UnidirectionalChannel (H323Connection &connection, const H323Capability &capability, Directions direction)

	~H323UnidirectionalChannel ()

virtual Directions	GetDirection () const

virtual PBoolean	SetInitialBandwidth ()

virtual bool	PreOpen ()

virtual PBoolean	Open ()

virtual bool	UpdateMediaFormat (const OpalMediaFormat &mediaFormat)
	Update media format options. More...

virtual OpalMediaStreamPtr	GetMediaStream () const

virtual void	SetMediaStream (OpalMediaStreamPtr mediaStream)

Public Member Functions inherited from H323Channel
	H323Channel (H323Connection &connection, const H323Capability &capability)

	~H323Channel ()

virtual void	PrintOn (ostream &strm) const

const H323ChannelNumber &	GetNumber () const

void	SetNumber (const H323ChannelNumber &num)

const H323ChannelNumber &	GetReverseChannel () const

void	SetReverseChannel (const H323ChannelNumber &num)

OpalBandwidth	GetBandwidthUsed () const

bool	SetBandwidthUsed (OpalBandwidth bandwidth)

const H323Capability &	GetCapability () const

OpalMediaFormat	GetMediaFormat () const
	Get the media format (from capability) More...

virtual unsigned	GetSessionID () const

virtual bool	SetSessionID (unsigned sessionID)

virtual PBoolean	GetMediaTransportAddress (OpalTransportAddress &data, OpalTransportAddress &control) const

virtual void	Close ()

PBoolean	IsOpen () const

virtual void	OnFlowControl (long bitRateRestriction)

virtual void	OnMiscellaneousCommand (const H245_MiscellaneousCommand_type &type)

virtual void	OnMiscellaneousIndication (const H245_MiscellaneousIndication_type &type)

virtual void	OnJitterIndication (DWORD jitter, int skippedFrameCount, int additionalBuffer)

Additional Inherited Members
Public Types inherited from H323Channel
enum	Directions { IsBidirectional, IsTransmitter, IsReceiver, NumDirections }

Protected Member Functions inherited from H323UnidirectionalChannel
virtual void	InternalClose ()

Protected Attributes inherited from H323UnidirectionalChannel
bool	receiver

OpalMediaStreamPtr	m_mediaStream

Protected Attributes inherited from H323Channel
H323EndPoint &	endpoint

H323Connection &	connection

H323Capability *	capability

H323ChannelNumber	number

H323ChannelNumber	reverseChannel

bool	opened

atomic< bool >	m_terminating

Detailed Description

This class is for encpsulating the IETF Real Time Protocol interface.

Constructor & Destructor Documentation

H323_RealTimeChannel::H323_RealTimeChannel	(	H323Connection &	connection,
		const H323Capability &	capability,
		Directions	direction
	)

Create a new channel.

Parameters

connection	Connection to endpoint for channel
capability	Capability channel is using
direction	Direction of channel

Member Function Documentation

RTP_DataFrame::PayloadTypes H323_RealTimeChannel::GetDynamicRTPPayloadType ( ) const

virtual PBoolean H323_RealTimeChannel::OnReceivedAckPDU ( const H245_OpenLogicalChannelAck & pdu )

virtual

This is called after a request to create a channel occurs from the local machine via the H245LogicalChannelDict::Open() function, and the request has been acknowledged by the remote endpoint.

The default makes sure the parameters are compatible and passes on the PDU to the rtp session.

Parameters

pdu	Acknowledgement PDU

Reimplemented from H323Channel.

virtual PBoolean H323_RealTimeChannel::OnReceivedAckPDU ( const H245_H2250LogicalChannelAckParameters & param )

virtual

This is called after a request to create a channel occurs from the local machine via the H245LogicalChannelDict::Open() function, and the request has been acknowledged by the remote endpoint.

The default behaviour sets the remote ports to send UDP packets to.

Parameters

param Acknowledgement PDU

Reimplemented in H323_RTPChannel.

virtual PBoolean H323_RealTimeChannel::OnReceivedPDU	(	const H245_OpenLogicalChannel &	pdu,
		unsigned &	errorCode
	)

virtual

This is called after a request to create a channel occurs from the local machine via the H245LogicalChannelDict::Open() function, and the request has been acknowledged by the remote endpoint.

The default makes sure the parameters are compatible and passes on the PDU to the rtp session.

Parameters

pdu	Open PDU
errorCode	Error code on failure

Reimplemented from H323Channel.

virtual PBoolean H323_RealTimeChannel::OnReceivedPDU	(	const H245_H2250LogicalChannelParameters &	param,
		unsigned &	errorCode
	)

virtual

This is called when request to create a channel is received from a remote machine and is about to be acknowledged.This is called after a request to create a channel occurs from the local machine via the H245LogicalChannelDict::Open() function, and the request has been acknowledged by the remote endpoint.

The default behaviour sets the remote ports to send UDP packets to.

Parameters

param	Acknowledgement PDU
errorCode	Error on failure

Reimplemented in H323_RTPChannel.

virtual PBoolean H323_RealTimeChannel::OnSendingAltPDU ( H245_ArrayOf_GenericInformation & alternate ) const

pure virtual

Alternate RTP port information for Same NAT

Parameters

alternate Alternate RTP ports

Implemented in H323_RTPChannel.

virtual PBoolean H323_RealTimeChannel::OnSendingPDU ( H245_OpenLogicalChannel & openPDU ) const

virtual

Fill out the OpenLogicalChannel PDU for the particular channel type.

Parameters

openPDU Open PDU to send.

Reimplemented from H323Channel.

virtual PBoolean H323_RealTimeChannel::OnSendingPDU ( H245_H2250LogicalChannelParameters & param ) const

virtual

Fill out the OpenLogicalChannel PDU for the particular channel type.

Parameters

param Open PDU to send.

Reimplemented in H323_RTPChannel.

virtual void H323_RealTimeChannel::OnSendOpenAck	(	const H245_OpenLogicalChannel &	open,
		H245_OpenLogicalChannelAck &	ack
	)		const

virtual

This is called when request to create a channel is received from a remote machine and is about to be acknowledged.

Parameters

open	Open PDU
ack	Acknowledgement PDU

Reimplemented from H323Channel.

virtual void H323_RealTimeChannel::OnSendOpenAck ( H245_H2250LogicalChannelAckParameters & param ) const

virtual

Parameters

param Acknowledgement PDU

Reimplemented in H323_RTPChannel.

The documentation for this class was generated from the following file:

channels.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation