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RTPPayloadReceiver Class Reference

#include <RTPPayloadReceiver.h>

Inheritance diagram for RTPPayloadReceiver:

RTPAVProfilePayload32Receiver RTPAVProfileSampleBasedAudioReceiver RTPAVProfilePayload10Receiver List of all members.

Detailed Description

The class RTPPayloadReceiver acts as a base class for modules processing incoming rtp data packets.


Protected Member Functions

virtual ~RTPPayloadReceiver ()
virtual void initialize ()
virtual void handleMessage (cMessage *msg)
virtual void processPacket (RTPPacket *packet)
virtual void openOutputFile (const char *fileName)
virtual void closeOutputFile ()

Protected Attributes

std::ofstream _outputFileStream
int _payloadType
cOutVector * _packetArrival

Constructor & Destructor Documentation

RTPPayloadReceiver::~RTPPayloadReceiver (   )  [protected, virtual]
 

Destructor. Disposes the queue object and closes the output file. 

00032                                         {
00033     closeOutputFile();
00034     delete _packetArrival;
00035 };

Member Function Documentation

void RTPPayloadReceiver::closeOutputFile (   )  [protected, virtual]
 

Closes the output file stream.

Reimplemented in RTPAVProfileSampleBasedAudioReceiver.

00069                                          {
00070     _outputFileStream.close();
00071 };

void RTPPayloadReceiver::handleMessage (  cMessage *  msg  )  [protected, virtual]
 

Method for handling incoming packets. At the moment only RTPInnerPackets containing an encapsulated RTPPacket are handled. 

00045                                                     {
00046     RTPInnerPacket *rinp = (RTPInnerPacket *)msg;
00047     if (rinp->type() == RTPInnerPacket::RTP_INP_DATA_IN) {
00048         RTPPacket *packet = (RTPPacket *)(rinp->decapsulate());
00049         processPacket(packet);
00050         delete rinp;
00051     }
00052     else {
00053         EV << "receiver module: RTPInnerPacket of wrong type received" << endl;
00054         delete rinp;
00055     }
00056 };

void RTPPayloadReceiver::initialize (   )  [protected, virtual]
 

Initializes the receiver module, opens the output file and creates a queue for incoming packets. Subclasses must overwrite it (but should call this method too)

Reimplemented in RTPAVProfilePayload10Receiver, and RTPAVProfilePayload32Receiver.

00038                                     {
00039     const char *fileName = par("outputFileName");
00040     openOutputFile(fileName);
00041     _packetArrival = new cOutVector("packet arrival");
00042 };

void RTPPayloadReceiver::openOutputFile (  const char *  fileName  )  [protected, virtual]
 

This method is called by initialize and opens the output file stream. For most payload receivers this method works well, only when using a library for a payload type which provides an own open method it must

Reimplemented in RTPAVProfileSampleBasedAudioReceiver.

00064                                                             {
00065     _outputFileStream.open(fileName);
00066 };

void RTPPayloadReceiver::processPacket (  RTPPacket *  packet  )  [protected, virtual]
 

Writes contents of this RTPPacket into the output file. Must be overwritten by subclasses.

Reimplemented in RTPAVProfilePayload32Receiver, and RTPAVProfileSampleBasedAudioReceiver.

00059                                                         {
00060     _packetArrival->record((double)(packet->timeStamp()));
00061 };

Member Data Documentation

std::ofstream RTPPayloadReceiver::_outputFileStream [protected]
 

The output file stream.

cOutVector* RTPPayloadReceiver::_packetArrival [protected]
 

An output vector used to store arrival of rtp data packets.

int RTPPayloadReceiver::_payloadType [protected]
 

The payload type this RTPPayloadReceiver module processes.

The documentation for this class was generated from the following files:
Generated on Sat Apr 1 20:52:24 2006 for INET Framework for OMNeT++/OMNEST by  doxygen 1.4.1