OpalFileMediaStream Class Reference

#include <mediastrm.h>

Inheritance diagram for OpalFileMediaStream:

List of all members.

Public Member Functions
virtual PBoolean	ReadData (BYTE *data, PINDEX size, PINDEX &length)
virtual PBoolean	WriteData (const BYTE *data, PINDEX length, PINDEX &written)
Overrides of OpalMediaStream class
virtual PBoolean	IsSynchronous () const
Protected Attributes
PFile	file

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Detailed Description

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

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Constructor & Destructor Documentation

OpalFileMediaStream::OpalFileMediaStream	(	OpalConnection &	,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		PFile *	file,
		bool	autoDelete = true
	)

Construct a new media stream for files.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
file	File to stream to/from
autoDelete	Automatically delete file

OpalFileMediaStream::OpalFileMediaStream	(	OpalConnection &	,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		const PFilePath &	path
	)

Construct a new media stream for files.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
path	File path to stream to/from

OpalFileMediaStream::OpalFileMediaStream	(	OpalConnection &	,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		PFile *	file,
		bool	autoDelete = true
	)

Construct a new media stream for files.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
file	File to stream to/from
autoDelete	Automatically delete file

OpalFileMediaStream::OpalFileMediaStream	(	OpalConnection &	,
		const OpalMediaFormat &	mediaFormat,
		unsigned	sessionID,
		bool	isSource,
		const PFilePath &	path
	)

Construct a new media stream for files.

Parameters:

mediaFormat	Media format for stream
sessionID	Session number for stream
isSource	Is a source stream
path	File path to stream to/from

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Member Function Documentation

virtual PBoolean OpalFileMediaStream::IsSynchronous

(

)

const [virtual]

Indicate if the media stream is synchronous. Returns true for LID streams.

Implements OpalMediaStream.

virtual PBoolean OpalFileMediaStream::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 OpalRawMediaStream.

virtual PBoolean OpalFileMediaStream::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 OpalRawMediaStream.

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Member Data Documentation

PFile OpalFileMediaStream::file [protected]

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

• mediastrm.h

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