H323NonStandardVideoCapability Class Reference

#include <h323caps.h>

Inheritance diagram for H323NonStandardVideoCapability:

Public Member Functions
Construction
	H323NonStandardVideoCapability (H323NonStandardCapabilityInfo::CompareFuncType compareFunc, const BYTE *dataBlock, PINDEX dataSize)
	H323NonStandardVideoCapability (const BYTE *dataBlock=NULL, PINDEX dataSize=0, PINDEX comparisonOffset=0, PINDEX comparisonLength=P_MAX_INDEX)
	H323NonStandardVideoCapability (const PString &oid, const BYTE *dataBlock=NULL, PINDEX dataSize=0, PINDEX comparisonOffset=0, PINDEX comparisonLength=P_MAX_INDEX)
	H323NonStandardVideoCapability (BYTE country, BYTE extension, WORD maufacturer, const BYTE *dataBlock=NULL, PINDEX dataSize=0, PINDEX comparisonOffset=0, PINDEX comparisonLength=P_MAX_INDEX)
Overrides from class PObject
Comparison	Compare (const PObject &obj) const
Identification functions
virtual unsigned	GetSubType () const
Protocol manipulation
virtual PBoolean	OnSendingPDU (H245_VideoCapability &pdu) const
virtual PBoolean	OnSendingPDU (H245_VideoMode &pdu) const
virtual PBoolean	OnReceivedPDU (const H245_VideoCapability &pdu)
virtual PBoolean	IsMatch (const PASN_Choice &subTypePDU) const

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Detailed Description

This class describes the interface to a non-standard video codec used to transfer data via the logical channels opened and managed by the H323 control channel.

An application may create a descendent off this class and override functions as required for descibing the codec.

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Constructor & Destructor Documentation

H323NonStandardVideoCapability::H323NonStandardVideoCapability	(	H323NonStandardCapabilityInfo::CompareFuncType	compareFunc,
		const BYTE *	dataBlock,
		PINDEX	dataSize
	)

Parameters:

dataBlock	Non-Standard data for codec type
dataSize	Size of dataBlock. If 0 and dataBlock != NULL use strlen(dataBlock)

H323NonStandardVideoCapability::H323NonStandardVideoCapability	(	const BYTE *	dataBlock = NULL,
		PINDEX	dataSize = 0,
		PINDEX	comparisonOffset = 0,
		PINDEX	comparisonLength = P_MAX_INDEX
	)

Create a new set of information about a non-standard codec.

Parameters:

dataBlock	Non-Standard data for codec type
dataSize	Size of dataBlock. If 0 and dataBlock != NULL use strlen(dataBlock)
comparisonOffset	Offset into dataBlock to compare
comparisonLength	Length of bytes to compare

H323NonStandardVideoCapability::H323NonStandardVideoCapability	(	const PString &	oid,
		const BYTE *	dataBlock = NULL,
		PINDEX	dataSize = 0,
		PINDEX	comparisonOffset = 0,
		PINDEX	comparisonLength = P_MAX_INDEX
	)

Create a new set of information about a non-standard codec.

Parameters:

oid	OID for indentification of codec
dataBlock	Non-Standard data for codec type
dataSize	Size of dataBlock. If 0 and dataBlock != NULL use strlen(dataBlock)
comparisonOffset	Offset into dataBlock to compare
comparisonLength	Length of bytes to compare

H323NonStandardVideoCapability::H323NonStandardVideoCapability	(	BYTE	country,
		BYTE	extension,
		WORD	maufacturer,
		const BYTE *	dataBlock = NULL,
		PINDEX	dataSize = 0,
		PINDEX	comparisonOffset = 0,
		PINDEX	comparisonLength = P_MAX_INDEX
	)

Create a new set of information about a non-standard codec.

Parameters:

country	t35 information
extension	t35 information
maufacturer	t35 information
dataBlock	Non-Standard data for codec type
dataSize	Size of dataBlock. If 0 and dataBlock != NULL use strlen(dataBlock)
comparisonOffset	Offset into dataBlock to compare
comparisonLength	Length of bytes to compare

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Member Function Documentation

Comparison H323NonStandardVideoCapability::Compare

(

const PObject &

obj

)

const

Compare two capability instances. This compares the main and sub-types of the capability.

Reimplemented from H323Capability.

virtual unsigned H323NonStandardVideoCapability::GetSubType

(

)

const [virtual]

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

This returns one of the four possible combinations of mode and speed using the enum values of the protocol ASN H245_AudioCapability class.

Implements H323Capability.

virtual PBoolean H323NonStandardVideoCapability::IsMatch

(

const PASN_Choice &

subTypePDU

)

const [virtual]

Compare the nonStandardData part of the capability, if applicable.

Parameters:

subTypePDU

sub-type PDU of H323Capability

Reimplemented from H323Capability.

virtual PBoolean H323NonStandardVideoCapability::OnReceivedPDU

(

const H245_VideoCapability &

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 calls H323NonStandardCapabilityinfo::OnReceivedPDU() to handle the provided PDU.

Parameters:

pdu	PDU to set information on

Reimplemented from H323VideoCapability.

virtual PBoolean H323NonStandardVideoCapability::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 calls H323NonStandardCapabilityinfo::OnSendingPDU() to handle the PDU.

Parameters:

pdu	PDU to set information on

Implements H323VideoCapability.

virtual PBoolean H323NonStandardVideoCapability::OnSendingPDU

(

H245_VideoCapability &

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 calls H323NonStandardCapabilityinfo::OnSendingPDU() to handle the PDU.

Parameters:

pdu	PDU to set information on

Reimplemented from H323VideoCapability.

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

• h323caps.h

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