H323ExtendedVideoCapability Class Reference

#include <h323caps.h>

Inheritance diagram for H323ExtendedVideoCapability:

Public Member Functions
Construction
	H323ExtendedVideoCapability (const PString &identifier)
Identification functions
virtual unsigned	GetSubType () const
Protocol manipulation
virtual PBoolean	OnSendingPDU (H245_VideoCapability &pdu, CommandType type) const
virtual PBoolean	OnSendingPDU (H245_VideoMode &pdu) const
virtual PBoolean	OnReceivedPDU (const H245_VideoCapability &pdu, CommandType type)
virtual PBoolean	IsMatch (const PASN_Choice &subTypePDU) const
Protected Attributes
OpalMediaFormatList	m_videoFormats

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Detailed Description

This class descibes an extended ideo capability, as used in H.239.

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Constructor & Destructor Documentation

H323ExtendedVideoCapability::H323ExtendedVideoCapability

(

const PString &

identifier

)

Create a new Extended Video capability.

Parameters:

identifier

generic codec identifier (OID)

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Member Function Documentation

virtual unsigned H323ExtendedVideoCapability::GetSubType

(

)

const [virtual]

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

This returns H245_VideoCapability::e_extendedVideoCapability.

Reimplemented from H323GenericVideoCapability.

virtual PBoolean H323ExtendedVideoCapability::IsMatch

(

const PASN_Choice &

subTypePDU

)

const [virtual]

Compare the generic part of the capability, if applicable.

Parameters:

subTypePDU

sub-type PDU of H323Capability

Reimplemented from H323GenericVideoCapability.

virtual PBoolean H323ExtendedVideoCapability::OnReceivedPDU	(	const H245_VideoCapability &	pdu,
		CommandType	type
	)			[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 calls H323GenericCapabilityinfo::OnReceivedPDU() to handle the provided PDU.

Parameters:

pdu	PDU to get information from
type	Type of PDU to send in

Reimplemented from H323GenericVideoCapability.

Reimplemented in H323H239VideoCapability.

virtual PBoolean H323ExtendedVideoCapability::OnSendingPDU

(

H245_VideoMode &

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 PDUs tag according to the GetSubType() function (translated to different enum).

Parameters:

pdu	PDU to set information on

Reimplemented from H323GenericVideoCapability.

virtual PBoolean H323ExtendedVideoCapability::OnSendingPDU	(	H245_VideoCapability &	pdu,
		CommandType	type
	)			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 calls H323GenericCapabilityinfo::OnSendingPDU() to handle the PDU.

Parameters:

pdu	PDU to set information on
type	Type of PDU to send in

Reimplemented from H323GenericVideoCapability.

Reimplemented in H323H239VideoCapability.

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Field Documentation

OpalMediaFormatList H323ExtendedVideoCapability::m_videoFormats [protected]

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

• h323caps.h

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