OPAL  Version 3.10.4
H323ExtendedVideoCapability Class Reference

#include <h323caps.h>

Inheritance diagram for H323ExtendedVideoCapability:
H323GenericVideoCapability H323VideoCapability H323GenericCapabilityInfo H323RealTimeCapability H323Capability H323H239VideoCapability

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
- Public Member Functions inherited from H323GenericVideoCapability
 H323GenericVideoCapability (const PString &capabilityId, PINDEX maxBitRate=0)
Comparison Compare (const PObject &obj) const
- Public Member Functions inherited from H323VideoCapability
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_VideoCapability &pdu) const
virtual PBoolean OnReceivedPDU (const H245_Capability &pdu)
virtual PBoolean OnReceivedPDU (const H245_DataType &pdu, PBoolean receiver)
virtual PBoolean OnReceivedPDU (const H245_VideoCapability &pdu)
virtual H323ChannelCreateChannel (H323Connection &connection, H323Channel::Directions dir, unsigned sessionID, const H245_H2250LogicalChannelParameters *param) const
 H323RealTimeCapability ()
 H323RealTimeCapability (const H323RealTimeCapability &rtc)
virtual ~H323RealTimeCapability ()
void AttachQoS (RTP_QOS *_rtpqos)
 Attach a QoS specification to this channel.
- Public Member Functions inherited from H323Capability
 H323Capability ()
void PrintOn (ostream &strm) const
virtual PString GetFormatName () const =0
virtual void SetTxFramesInPacket (unsigned frames)
virtual unsigned GetTxFramesInPacket () const
virtual unsigned GetRxFramesInPacket () const
virtual PBoolean IsUsable (const H323Connection &connection) const
CapabilityDirection GetCapabilityDirection () const
void SetCapabilityDirection (CapabilityDirection dir)
unsigned GetCapabilityNumber () const
 Get unique capability number.
void SetCapabilityNumber (unsigned num)
 Set unique capability number.
OpalMediaFormat GetMediaFormat () const
bool UpdateMediaFormat (const OpalMediaFormat &format)
RTP_DataFrame::PayloadTypes GetPayloadType () const
 Get the payload type for the capaibility.
void SetPayloadType (RTP_DataFrame::PayloadTypes pt)
 Set the payload type for the capaibility.
- Public Member Functions inherited from H323GenericCapabilityInfo
 H323GenericCapabilityInfo (const PString &id, unsigned maxBitRate=0)
virtual ~H323GenericCapabilityInfo ()

Protected Attributes

OpalMediaFormatList m_videoFormats

Detailed Description

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


Constructor & Destructor Documentation

H323ExtendedVideoCapability::H323ExtendedVideoCapability ( const PString &  identifier)

Create a new Extended Video capability.

Parameters:
identifiergeneric codec identifier (OID)

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:
subTypePDUsub-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:
pduPDU to get information from
typeType of PDU to send in

Reimplemented from H323GenericVideoCapability.

Reimplemented in H323H239VideoCapability.

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:
pduPDU to set information on
typeType 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:
pduPDU to set information on

Reimplemented from H323GenericVideoCapability.


Field Documentation

OpalMediaFormatList H323ExtendedVideoCapability::m_videoFormats
protected

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