#include <h323t120.h>

Inheritance diagram for H323_T120Capability:

Collaboration diagram for H323_T120Capability:

Public Member Functions
Construction
	H323_T120Capability ()

Overrides from class PObject
virtual PObject *	Clone () const

Identification functions
virtual unsigned	GetSubType () const

virtual PString	GetFormatName () const

Operations
virtual H323Channel *	CreateChannel (H323Connection &connection, H323Channel::Directions dir, unsigned sessionID, const H245_H2250LogicalChannelParameters *param) const

Protocol manipulation
virtual PBoolean	OnSendingPDU (H245_DataApplicationCapability &pdu) const

virtual PBoolean	OnSendingPDU (H245_DataMode &pdu) const

virtual PBoolean	OnSendingPDU (H245_DataProtocolCapability &pdu) const

virtual PBoolean	OnReceivedPDU (const H245_DataApplicationCapability &pdu)

Member access
PBoolean	GetDynamicPortCapability () const

void	SetDynamicPortCapability (PBoolean dynamic)

Public Member Functions inherited from H323DataCapability
	H323DataCapability (unsigned maxBitRate)

virtual MainTypes	GetMainType () const

virtual unsigned	GetDefaultSessionID () const

virtual PBoolean	OnSendingPDU (H245_Capability &pdu) const

virtual PBoolean	OnSendingPDU (H245_DataType &pdu) const

virtual PBoolean	OnSendingPDU (H245_ModeElement &pdu) const

virtual PBoolean	OnSendingPDU (H245_DataApplicationCapability &pdu, CommandType type) const

virtual PBoolean	OnReceivedPDU (const H245_Capability &pdu)

virtual PBoolean	OnReceivedPDU (const H245_DataType &pdu, PBoolean receiver)

virtual PBoolean	OnReceivedPDU (const H245_DataApplicationCapability &pdu, CommandType type)

Public Member Functions inherited from H323Capability
	H323Capability ()

	H323Capability (const H323Capability &other)

H323Capability &	operator= (const H323Capability &other)

	~H323Capability ()

Comparison	Compare (const PObject &obj) const

void	PrintOn (ostream &strm) const

virtual void	SetTxFramesInPacket (unsigned frames)

virtual unsigned	GetTxFramesInPacket () const

virtual unsigned	GetRxFramesInPacket () const

virtual PBoolean	IsMatch (const PASN_Object &subTypePDU, const PString &mediaPacketization) const

virtual PBoolean	IsUsable (const H323Connection &connection) const

CapabilityDirection	GetCapabilityDirection () const

void	SetCapabilityDirection (CapabilityDirection dir)

unsigned	GetCapabilityNumber () const
	Get unique capability number. More...

void	SetCapabilityNumber (unsigned num)
	Set unique capability number. More...

OpalMediaFormat	GetMediaFormat () const

bool	UpdateMediaFormat (const OpalMediaFormat &format)

RTP_DataFrame::PayloadTypes	GetPayloadType () const
	Get the payload type for the capaibility. More...

void	SetPayloadType (RTP_DataFrame::PayloadTypes pt)
	Set the payload type for the capaibility. More...

Protected Attributes
PBoolean	dynamicPortCapability

Protected Attributes inherited from H323DataCapability
OpalBandwidth	m_maxBitRate

Protected Attributes inherited from H323Capability
unsigned	assignedCapabilityNumber

CapabilityDirection	capabilityDirection
	Unique ID assigned to capability. More...

OpalMediaFormat	m_mediaFormat

Additional Inherited Members
Public Types inherited from H323Capability
enum	MainTypes { e_Audio, e_Video, e_Data, e_UserInput, e_GenericControl, e_H235Security, e_FEC, e_NumMainTypes }

enum	{ DefaultAudioSessionID = 1, DefaultVideoSessionID = 2, DefaultDataSessionID = 3, MasterAllocatedBaseSessionID, DeferredSessionID = 1000000 }

enum	CommandType { e_TCS, e_OLC, e_ReqMode }

enum	CapabilityDirection { e_Unknown, e_Receive, e_Transmit, e_ReceiveAndTransmit, e_NoDirection, NumCapabilityDirections }

Static Public Member Functions inherited from H323Capability
static H323Capability *	Create (const PString &name)

Protected Member Functions inherited from H323Capability
OpalMediaFormat &	GetWritableMediaFormat () const

Detailed Description

This class describes the T.120 logical channel.

Constructor & Destructor Documentation

H323_T120Capability::H323_T120Capability ( )

Create capability.

Member Function Documentation

virtual PObject* H323_T120Capability::Clone ( ) const

virtual

Create a copy of the object.

virtual H323Channel* H323_T120Capability::CreateChannel	(	H323Connection &	connection,
		H323Channel::Directions	dir,
		unsigned	sessionID,
		const H245_H2250LogicalChannelParameters *	param
	)		const

virtual

Create the channel instance, allocating resources as required.

Parameters

connection	Owner connection for channel
dir	Direction of channel
sessionID	Session ID for RTP channel
param	Parameters for channel

Reimplemented from H323Capability.

PBoolean H323_T120Capability::GetDynamicPortCapability ( ) const

inline

Get the dynamic port capability. Indicates endpoint can use something other than port 1503.

References dynamicPortCapability.

virtual PString H323_T120Capability::GetFormatName ( ) const

virtual

Get the name of the media data format this class represents.

Implements H323Capability.

virtual unsigned H323_T120Capability::GetSubType ( ) const

virtual

Get the sub-type of the capability. This is a code dependent on the main type of the capability.

This returns the e_t120 enum value from the protocol ASN H245_DataApplicationCapability_application class.

Implements H323Capability.

virtual PBoolean H323_T120Capability::OnReceivedPDU ( const H245_DataApplicationCapability & pdu )

virtual

This function is called whenever and incoming TerminalCapabilitySet or OpenLogicalChannel PDU has been used to construct the control channel. It allows the capability to set from the PDU fields, information in members specific to the class.

The default behaviour gets the data rate field from the PDU.

Parameters

pdu	PDU to set information on

Reimplemented from H323DataCapability.

virtual PBoolean H323_T120Capability::OnSendingPDU ( H245_DataApplicationCapability & pdu ) const

virtual

This function is called whenever and outgoing TerminalCapabilitySet or OpenLogicalChannel PDU is being constructed for the control channel. It allows the capability to set the PDU fields from information in members specific to the class.

The default behaviour sets the pdu and calls OnSendingPDU with a H245_DataProtocolCapability parameter.

Reimplemented from H323DataCapability.

virtual PBoolean H323_T120Capability::OnSendingPDU ( H245_DataMode & pdu ) const

virtual

This function is called whenever and outgoing RequestMode PDU is being constructed for the control channel. It allows the capability to set the PDU fields from information in members specific to the class.

The default behaviour sets the pdu and calls OnSendingPDU with a H245_DataProtocolCapability parameter.

Parameters

pdu	PDU to set information on

Implements H323DataCapability.

virtual PBoolean H323_T120Capability::OnSendingPDU ( H245_DataProtocolCapability & pdu ) const

virtual

This function is called whenever and outgoing PDU is being constructed for the control channel. It allows the capability to set the PDU fields from information in members specific to the class.

The default behaviour sets separate LAN stack.

Parameters