OpalRawMediaStream Class Reference

#include <mediastrm.h>

Inheritance diagram for OpalRawMediaStream:

List of all members.

Public Member Functions
Overrides of OpalMediaStream class
virtual PBoolean	ReadData (BYTE *data, PINDEX size, PINDEX &length)
virtual PBoolean	WriteData (const BYTE *data, PINDEX length, PINDEX &written)
PChannel *	GetChannel ()
virtual PBoolean	Close ()
virtual unsigned	GetAverageSignalLevel ()
Protected Member Functions
void	CollectAverage (const BYTE *buffer, PINDEX size)
Protected Attributes
PChannel *	channel
bool	autoDelete
PUInt64	averageSignalSum
unsigned	averageSignalSamples
PMutex	averagingMutex

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Detailed Description

This class describes a media stream that transfers data to/from a PChannel.

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Constructor & Destructor Documentation

OpalRawMediaStream::OpalRawMediaStream	(	OpalConnection &	conn,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		PChannel *	channel,
		bool	autoDelete
	)			[protected]

Construct a new media stream for channel.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
channel	I/O channel to stream to/from
autoDelete	Automatically delete channel

OpalRawMediaStream::~OpalRawMediaStream

(

)

[protected]

Delete attached channel if autoDelete enabled.

OpalRawMediaStream::OpalRawMediaStream	(	OpalConnection &	conn,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		PChannel *	channel,
		bool	autoDelete
	)			[protected]

Construct a new media stream for channel.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
channel	I/O channel to stream to/from
autoDelete	Automatically delete channel

OpalRawMediaStream::~OpalRawMediaStream

(

)

[protected]

Delete attached channel if autoDelete enabled.

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Member Function Documentation

virtual PBoolean OpalRawMediaStream::ReadData	(	BYTE *	data,
		PINDEX	size,
		PINDEX &	length
	)			[virtual]

Read raw media data from the source media stream. The default behaviour reads from the PChannel object.

Parameters:

data	Data buffer to read to
size	Size of buffer
length	Length of data actually read

Reimplemented from OpalMediaStream.

Reimplemented in OpalFileMediaStream.

virtual PBoolean OpalRawMediaStream::WriteData	(	const BYTE *	data,
		PINDEX	length,
		PINDEX &	written
	)			[virtual]

Write raw media data to the sink media stream. The default behaviour writes to the PChannel object.

Parameters:

data	Data to write
length	Length of data to read.
written	Length of data actually written

Reimplemented from OpalMediaStream.

Reimplemented in OpalFileMediaStream.

PChannel* OpalRawMediaStream::GetChannel

(

)

[inline]

Return the associated PChannel

virtual PBoolean OpalRawMediaStream::Close

(

)

[virtual]

Close the media stream.

Closes the associated PChannel.

Reimplemented from OpalMediaStream.

virtual unsigned OpalRawMediaStream::GetAverageSignalLevel

(

)

[virtual]

Get average signal level in last frame.

void OpalRawMediaStream::CollectAverage	(	const BYTE *	buffer,
		PINDEX	size
	)			[protected]

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Member Data Documentation

PChannel* OpalRawMediaStream::channel [protected]

bool OpalRawMediaStream::autoDelete [protected]

PUInt64 OpalRawMediaStream::averageSignalSum [protected]

unsigned OpalRawMediaStream::averageSignalSamples [protected]

PMutex OpalRawMediaStream::averagingMutex [protected]

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

• mediastrm.h

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