OpalLineMediaStream Class Reference

#include <lidep.h>

Inheritance diagram for OpalLineMediaStream:

List of all members.

Public Member Functions
Construction
	OpalLineMediaStream (const OpalMediaFormat &mediaFormat, unsigned sessionID, BOOL isSource, OpalLine &line)
Overrides of OpalMediaStream class
virtual BOOL	Open ()
virtual BOOL	Close ()
virtual BOOL	ReadData (BYTE *data, PINDEX size, PINDEX &length)
virtual BOOL	WriteData (const BYTE *data, PINDEX length, PINDEX &written)
virtual BOOL	IsSynchronous () const
Protected Attributes
OpalLine &	line
BOOL	useDeblocking
unsigned	missedCount
BYTE	lastSID [4]
BOOL	lastFrameWasSignal

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Detailed Description

This class describes a media stream that transfers data to/from a Line Interface Device.

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Constructor & Destructor Documentation

OpalLineMediaStream::OpalLineMediaStream (  const OpalMediaFormat &  mediaFormat, unsigned  sessionID, BOOL  isSource, OpalLine &  line )

Construct a new media stream for Line Interface Devices. Parameters: mediaFormat  Media format for stream sessionID  Session number for stream isSource  Is a source stream line  LID line to stream to/from

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Member Function Documentation

virtual BOOL OpalLineMediaStream::Close (   )  [virtual]

Close the media stream. The default does nothing. Reimplemented from OpalMediaStream.

virtual BOOL OpalLineMediaStream::IsSynchronous (   )  const [virtual]

Indicate if the media stream is synchronous. Returns TRUE for LID streams. Implements OpalMediaStream.

virtual BOOL OpalLineMediaStream::Open (   )  [virtual]

Open the media stream. The default behaviour sets the OpalLineInterfaceDevice format and calls Resume() on the associated OpalMediaPatch thread. Reimplemented from OpalMediaStream.

virtual BOOL OpalLineMediaStream::ReadData (  BYTE *  data, PINDEX  size, PINDEX &  length )  [virtual]

Read raw media data from the source media stream. The default behaviour reads from the OpalLine object. Parameters: data  Data buffer to read to size  Size of buffer length  Length of data actually read Reimplemented from OpalMediaStream.

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

Write raw media data to the sink media stream. The default behaviour writes to the OpalLine object. Parameters: data  Data to write length  Length of data to read. written  Length of data actually written Reimplemented from OpalMediaStream.

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Member Data Documentation

BOOL OpalLineMediaStream::lastFrameWasSignal [protected]

BYTE OpalLineMediaStream::lastSID[4] [protected]

OpalLine& OpalLineMediaStream::line [protected]

unsigned OpalLineMediaStream::missedCount [protected]

BOOL OpalLineMediaStream::useDeblocking [protected]

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

• lidep.h

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