OpalIVRMediaStream Class Reference

#include <ivr.h>

Inheritance diagram for OpalIVRMediaStream:

Collaboration diagram for OpalIVRMediaStream:

Public Member Functions
Construction
	OpalIVRMediaStream (OpalIVRConnection &conn, const OpalMediaFormat &mediaFormat, unsigned sessionID, PBoolean isSource, PVXMLSession &vxml)
Overrides of OpalMediaStream class
virtual PBoolean	Open ()
virtual PBoolean	IsSynchronous () const
Public Member Functions inherited from OpalRawMediaStream
virtual PBoolean	ReadData (BYTE *data, PINDEX size, PINDEX &length)
virtual PBoolean	WriteData (const BYTE *data, PINDEX length, PINDEX &written)
PChannel *	GetChannel ()
bool	SetChannel (PChannel *channel, bool autoDelete=true)
virtual unsigned	GetAverageSignalLevel ()
Public Member Functions inherited from OpalMediaStream
virtual bool	InternalUpdateMediaFormat (const OpalMediaFormat &mediaFormat)
virtual bool	InternalSetPaused (bool pause, bool fromUser, bool fromPatch)
virtual bool	InternalExecuteCommand (const OpalMediaCommand &command)
void	PrintOn (ostream &strm) const
virtual OpalMediaFormat	GetMediaFormat () const
virtual bool	SetMediaFormat (const OpalMediaFormat &mediaFormat)
bool	UpdateMediaFormat (const OpalMediaFormat &mediaFormat, bool mergeOnly=false)
bool	ExecuteCommand (const OpalMediaCommand &command) const
virtual bool	IsOpen () const
virtual PBoolean	Start ()
virtual PBoolean	Close ()
virtual void	OnStartMediaPatch ()
virtual void	OnStopMediaPatch (OpalMediaPatch &patch)
virtual PBoolean	WritePackets (RTP_DataFrameList &packets)
virtual PBoolean	ReadPacket (RTP_DataFrame &packet)
virtual PBoolean	WritePacket (RTP_DataFrame &packet)
bool	PushPacket (RTP_DataFrame &packet)
virtual PBoolean	SetDataSize (PINDEX dataSize, PINDEX frameTime)
PINDEX	GetDataSize () const
virtual PBoolean	RequiresPatchThread (OpalMediaStream *stream) const
virtual PBoolean	RequiresPatchThread () const
virtual bool	EnableJitterBuffer (bool enab=true) const
OpalConnection &	GetConnection () const
bool	IsSource () const
bool	IsSink () const
unsigned	GetSessionID () const
void	SetSessionID (unsigned id)
PString	GetID () const
unsigned	GetTimestamp () const
void	SetTimestamp (unsigned ts)
bool	GetMarker () const
void	SetMarker (bool m)
bool	IsPaused () const
bool	SetPaused (bool pause)
virtual PBoolean	SetPatch (OpalMediaPatch *patch)
OpalMediaPatchPtr	GetPatch () const
void	AddFilter (const PNotifier &filter, const OpalMediaFormat &stage=OpalMediaFormat()) const
bool	RemoveFilter (const PNotifier &filter, const OpalMediaFormat &stage=OpalMediaFormat()) const
virtual void	GetStatistics (OpalMediaStatistics &statistics, bool fromPatch=false) const
	P_DECLARE_BITWISE_ENUM (Details, 6,(DetailMinimum, DetailEOL, DetailNAT, DetailSecured, DetailFEC, DetailAudio, DetailAddresses))
virtual void	PrintDetail (ostream &strm, const char *prefix=NULL, Details details=Details::All()) const
	~OpalMediaStream ()

Protected Member Functions
virtual void	InternalClose ()
Protected Member Functions inherited from OpalRawMediaStream
void	CollectAverage (const BYTE *buffer, PINDEX size)
	OpalRawMediaStream (OpalConnection &conn, const OpalMediaFormat &mediaFormat, unsigned sessionID, bool isSource, PChannel *channel, bool autoDelete)
	~OpalRawMediaStream ()
Protected Member Functions inherited from OpalMediaStream
void	IncrementTimestamp (PINDEX size)
bool	InternalWriteData (const BYTE *data, PINDEX length, PINDEX &written)
OpalMediaPatchPtr	InternalSetPatchPart1 (OpalMediaPatch *newPatch)
void	InternalSetPatchPart2 (const OpalMediaPatchPtr &oldPatch)
virtual bool	InternalSetJitterBuffer (const OpalJitterBuffer::Init &init) const
	OpalMediaStream (OpalConnection &conn, const OpalMediaFormat &mediaFormat, unsigned sessionID, bool isSource)

Protected Attributes
PVXMLSession &	m_vxmlSession
Protected Attributes inherited from OpalRawMediaStream
PChannel *	m_channel
bool	m_autoDelete
PMutex	m_channelMutex
PBYTEArray	m_silence
PUInt64	m_averageSignalSum
unsigned	m_averageSignalSamples
PMutex	m_averagingMutex
Protected Attributes inherited from OpalMediaStream
OpalConnection &	connection
unsigned	sessionID
WORD	m_sequenceNumber
PString	identifier
OpalMediaFormat	mediaFormat
bool	m_paused
bool	m_isSource
bool	m_isOpen
PINDEX	m_defaultDataSize
unsigned	timestamp
bool	marker
OpalMediaPatchPtr	m_mediaPatch
RTP_DataFrame::PayloadTypes	m_payloadType
unsigned	m_frameTime
PINDEX	m_frameSize

Additional Inherited Members
Protected Types inherited from OpalMediaStream
typedef OpalMediaPatchPtr	PatchPtr

Detailed Description

This class describes a media stream that transfers data to/from an IVR vxml session.

Constructor & Destructor Documentation

OpalIVRMediaStream::OpalIVRMediaStream	(	OpalIVRConnection &	conn,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		PBoolean	isSource,
		PVXMLSession &	vxml
	)

Construct a new media stream for IVR session.

Parameters

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
vxml	vxml session to use

Member Function Documentation

virtual void OpalIVRMediaStream::InternalClose ( )

protectedvirtual

Close any internal components of the stream. This should be used in preference to overriding the Close() function as it is guaranteed to be called exactly once and avoids race conditions in the shut down sequence of a media stream.

Reimplemented from OpalRawMediaStream.

virtual PBoolean OpalIVRMediaStream::IsSynchronous ( ) const

virtual

Indicate if the media stream is synchronous. Returns false for IVR streams.

Implements OpalMediaStream.

virtual PBoolean OpalIVRMediaStream::Open ( )

virtual

Open the media stream using the media format.

The default behaviour simply sets the member variable "mediaFormat" and "defaultDataSize".

Reimplemented from OpalMediaStream.

Field Documentation

PVXMLSession& OpalIVRMediaStream::m_vxmlSession

protected

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

• ivr.h