OpalPassiveMediaPatch Class Reference

#include <patch.h>

Inheritance diagram for OpalPassiveMediaPatch:

Collaboration diagram for OpalPassiveMediaPatch:

Public Member Functions
	OpalPassiveMediaPatch (OpalMediaStream &source)
virtual void	Start ()
virtual void	Close ()
Public Member Functions inherited from OpalMediaPatch
	OpalMediaPatch (OpalMediaStream &source)
	~OpalMediaPatch ()
void	PrintOn (ostream &strm) const
virtual bool	OnStartMediaPatch ()
PBoolean	AddSink (const OpalMediaStreamPtr &stream)
void	RemoveSink (const OpalMediaStream &stream)
OpalMediaStream &	GetSource () const
OpalMediaStreamPtr	GetSink (PINDEX i=0) const
OpalMediaFormat	GetSinkFormat (PINDEX i=0) const
void	AddFilter (const PNotifier &filter, const OpalMediaFormat &stage=OpalMediaFormat())
bool	RemoveFilter (const PNotifier &filter, const OpalMediaFormat &stage=OpalMediaFormat())
virtual void	FilterFrame (RTP_DataFrame &frame, const OpalMediaFormat &mediaFormat)
virtual bool	UpdateMediaFormat (const OpalMediaFormat &mediaFormat)
virtual bool	ExecuteCommand (const OpalMediaCommand &command)
virtual bool	InternalSetPaused (bool pause, bool fromUser)
virtual PBoolean	PushFrame (RTP_DataFrame &frame)
bool	SetBypassPatch (const OpalMediaPatchPtr &patch)
bool	IsBypassed () const
virtual OpalTranscoder *	GetAndLockSinkTranscoder (PINDEX i=0) const
virtual void	UnLockSinkTranscoder () const
virtual bool	ResetTranscoders ()
bool	EnableJitterBuffer (bool enab=true)
virtual void	GetStatistics (OpalMediaStatistics &statistics, bool fromSink) const

Protected Attributes
bool	m_started
Protected Attributes inherited from OpalMediaPatch
OpalMediaStream &	m_source
PList< Sink >	m_sinks
PList< Filter >	m_filters
OpalMediaPatchPtr	m_bypassToPatch
OpalMediaPatchPtr	m_bypassFromPatch
PSyncPoint	m_bypassEnded
PThread *	m_patchThread
PThreadIdentifier	m_patchThreadId
bool	m_transcoderChanged

Additional Inherited Members
Protected Member Functions inherited from OpalMediaPatch
	PDECLARE_NOTIFIER (OpalMediaCommand, OpalMediaPatch, InternalOnMediaCommand1)
void	InternalOnMediaCommand2 (OpalMediaCommand *command)
bool	CanStart () const
virtual void	Main ()
void	StopThread ()
bool	DispatchFrame (RTP_DataFrame &frame)
bool	DispatchFrameLocked (RTP_DataFrame &frame, bool bypassing)
	PDECLARE_MUTEX (m_patchThreadMutex)

Detailed Description

Passive Media Patch In contrast to the 'default' media patch does this instance not run it's own thread. Instead, the source stream may push data to the sinks whenever needed. Useful for implementations where the source is not a continuous data stream (e.g. H.224/H.281 FECC, where data is sent on user input) or the source stream is driven by an external thread loop.

Constructor & Destructor Documentation

OpalPassiveMediaPatch::OpalPassiveMediaPatch

(

OpalMediaStream &

source

)

Parameters

source

Source media stream

Member Function Documentation

virtual void OpalPassiveMediaPatch::Close ( )

virtual

Close the patch. This is an internal function that closes all of the sink streams and waits for the the thread to terminate. It is called when the source stream is called.

Reimplemented from OpalMediaPatch.

virtual void OpalPassiveMediaPatch::Start ( )

virtual

Start the patch. The default implementation simply starts the patch thread, which in turn calls Main()

Reimplemented from OpalMediaPatch.

Field Documentation

bool OpalPassiveMediaPatch::m_started

protected

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

• patch.h