OpalMediaTypeDefinition Class Reference

#include <mediatype.h>

Inheritance diagram for OpalMediaTypeDefinition:

Public Member Functions
	OpalMediaTypeDefinition (const char mediaType, const char sdpType, unsigned requiredSessionId=0, OpalMediaType::AutoStartMode autoStart=OpalMediaType::DontOffer)
	Create a new media type definition.
virtual	~OpalMediaTypeDefinition ()
OpalMediaType::AutoStartMode	GetAutoStart () const
void	SetAutoStart (OpalMediaType::AutoStartMode v)
void	SetAutoStart (OpalMediaType::AutoStartMode v, bool on)
virtual bool	UsesRTP () const
virtual OpalMediaSession *	CreateMediaSession (OpalConnection &connection, unsigned sessionID) const
virtual PString	GetRTPEncoding () const =0
virtual RTP_UDP *	CreateRTPSession (OpalRTPConnection &conn, unsigned sessionID, bool remoteIsNAT)
unsigned	GetDefaultSessionId () const
virtual std::string	GetSDPType () const
virtual SDPMediaDescription *	CreateSDPMediaDescription (const OpalTransportAddress &localAddress)=0
Protected Attributes
std::string	m_mediaType
unsigned	m_defaultSessionId
OpalMediaType::AutoStartMode	m_autoStart
std::string	m_sdpType

Detailed Description

This class defines the type used to define the attributes of a media type

Constructor & Destructor Documentation

OpalMediaTypeDefinition::OpalMediaTypeDefinition	(	const char *	mediaType,
		const char *	sdpType,
		unsigned	requiredSessionId = `0`,
		OpalMediaType::AutoStartMode	autoStart = `OpalMediaType::DontOffer`
	)

Create a new media type definition.

Parameters:

	mediaType	name of the media type (audio, video etc)
	sdpType	name of the SDP type
	requiredSessionId	Session ID to use, asserts if already in use
	autoStart	Default value for auto-start transmit & receive

virtual OpalMediaTypeDefinition::~OpalMediaTypeDefinition ( ) [inline, virtual]

Member Function Documentation

virtual OpalMediaSession* OpalMediaTypeDefinition::CreateMediaSession	(	OpalConnection &	connection,
		unsigned	sessionID
	)			const `[virtual]`

Create a media session suitable for the media type.

Parameters:

	connection	Connection media session is being created for
	sessionID	ID for the media session

Reimplemented in OpalMSRPMediaType, OpalSIPIMMediaType, OpalRTPAVPMediaType, and OpalFaxMediaType.

virtual RTP_UDP* OpalMediaTypeDefinition::CreateRTPSession	(	OpalRTPConnection &	conn,
		unsigned	sessionID,
		bool	remoteIsNAT
	)			`[virtual]`

Create an RTP session for this media format. By default, this will create a RTP_UDP session with the correct initial format

Only valid if UsesRTP return true

Reimplemented in OpalIMMediaType, SimpleMediaType< Type, sdp >, and OpalFaxMediaType.

virtual SDPMediaDescription* OpalMediaTypeDefinition::CreateSDPMediaDescription ( const OpalTransportAddress & localAddress ) [pure virtual]

Implemented in OpalH224MediaType, OpalMSRPMediaType, OpalSIPIMMediaType, OpalT140MediaType, SimpleMediaType< Type, sdp >, OpalAudioMediaType, OpalVideoMediaType, and OpalFaxMediaType.

OpalMediaType::AutoStartMode OpalMediaTypeDefinition::GetAutoStart ( ) const [inline]

Get flags for media type can auto-start on call initiation.

References m_autoStart.

Referenced by OpalMediaType::GetAutoStart().

unsigned OpalMediaTypeDefinition::GetDefaultSessionId ( ) const [inline]

Return the default session ID for this media type.

References m_defaultSessionId.

virtual PString OpalMediaTypeDefinition::GetRTPEncoding ( ) const [pure virtual]

Get the string used for the RTP_FormatHandler PFactory which is used to create the RTP handler for the this media type possible values include "rtp/avp" and "udptl"

Only valid if UsesRTP return true

Implemented in OpalIMMediaType, SimpleMediaType< Type, sdp >, OpalRTPAVPMediaType, and OpalFaxMediaType.

virtual std::string OpalMediaTypeDefinition::GetSDPType ( ) const [inline, virtual]

References m_sdpType.