H323_RealTimeChannel Class Reference

#include <channels.h>

Inheritance diagram for H323_RealTimeChannel:

List of all members.

Public Member Functions
Overrides from class H323Channel
virtual BOOL	OnSendingPDU (H245_OpenLogicalChannel &openPDU) const
virtual void	OnSendOpenAck (const H245_OpenLogicalChannel &open, H245_OpenLogicalChannelAck &ack) const
virtual BOOL	OnReceivedPDU (const H245_OpenLogicalChannel &pdu, unsigned &errorCode)
virtual BOOL	OnReceivedAckPDU (const H245_OpenLogicalChannelAck &pdu)
Operations
virtual BOOL	OnSendingPDU (H245_H2250LogicalChannelParameters &param) const=0
virtual void	OnSendOpenAck (H245_H2250LogicalChannelAckParameters &param) const =0
virtual BOOL	OnReceivedPDU (const H245_H2250LogicalChannelParameters &param, unsigned &errorCode)=0
virtual BOOL	OnReceivedAckPDU (const H245_H2250LogicalChannelAckParameters &param)=0
virtual BOOL	SetDynamicRTPPayloadType (int newType)
RTP_DataFrame::PayloadTypes	GetDynamicRTPPayloadType () const
Protected Attributes
RTP_DataFrame::PayloadTypes	rtpPayloadType

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Detailed Description

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

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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

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

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Member Function Documentation

virtual BOOL H323_RealTimeChannel::OnSendingPDU

(

H245_OpenLogicalChannel &

openPDU

)

const [virtual]

Fill out the OpenLogicalChannel PDU for the particular channel type.

Parameters:

openPDU

Open PDU to send.

Implements H323Channel.

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 BOOL 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 BOOL 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 BOOL H323_RealTimeChannel::OnSendingPDU

(

H245_H2250LogicalChannelParameters &

param

)

const [pure virtual]

Fill out the OpenLogicalChannel PDU for the particular channel type.

Parameters:

param

Open PDU to send.

Implemented in H323_RTPChannel, and H323_ExternalRTPChannel.

virtual void H323_RealTimeChannel::OnSendOpenAck

(

H245_H2250LogicalChannelAckParameters &

param

)

const [pure virtual]

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

Parameters:

param

Acknowledgement PDU

Implemented in H323_RTPChannel, and H323_ExternalRTPChannel.

virtual BOOL H323_RealTimeChannel::OnReceivedPDU	(	const H245_H2250LogicalChannelParameters &	param,
		unsigned &	errorCode
	)			[pure 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
errorCode	Error on failure

Implemented in H323_RTPChannel, and H323_ExternalRTPChannel.

virtual BOOL H323_RealTimeChannel::OnReceivedAckPDU

(

const H245_H2250LogicalChannelAckParameters &

param

)

[pure 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

Implemented in H323_RTPChannel, and H323_ExternalRTPChannel.

virtual BOOL H323_RealTimeChannel::SetDynamicRTPPayloadType

(

int

newType

)

[virtual]

Set the dynamic payload type used by this channel.

Parameters:

newType

New RTP payload type number

RTP_DataFrame::PayloadTypes H323_RealTimeChannel::GetDynamicRTPPayloadType

(

)

const [inline]

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Member Data Documentation

RTP_DataFrame::PayloadTypes H323_RealTimeChannel::rtpPayloadType [protected]

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

• channels.h

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