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/*******************************************************************************
* This file is part of openWNS (open Wireless Network Simulator)
* _____________________________________________________________________________
*
* Copyright (C) 2004-2007
* Chair of Communication Networks (ComNets)
* Kopernikusstr. 5, D-52074 Aachen, Germany
* phone: ++49-241-80-27910,
* fax: ++49-241-80-22242
* email: info@openwns.org
* www: http://www.openwns.org
* _____________________________________________________________________________
*
* openWNS is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License version 2 as published by the
* Free Software Foundation;
*
* openWNS is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#include <APPLICATIONS/session/server/wimax/Video.hpp>
using namespace applications::session::server::wimax;
STATIC_FACTORY_REGISTER_WITH_CREATOR(applications::session::server::wimax::Video,
applications::session::Session,
"server.WiMAXVideo", wns::PyConfigViewCreator);
using namespace applications::session::server::wimax;
Video::Video(const wns::pyconfig::View& _pyco) :
Session(_pyco),
framePacketCounter(0),
firstPacketNumber(true)
{
wns::pyconfig::View pSDConfig(_pyco, "packetSize");
std::string pSDName = pSDConfig.get<std::string>("__plugin__");
packetSizeDistribution = wns::distribution::DistributionFactory::creator(pSDName)->create(pSDConfig);
wns::pyconfig::View iATConfig(_pyco, "packetIat");
std::string iATName = iATConfig.get<std::string>("__plugin__");
packetIatDistribution = wns::distribution::DistributionFactory::creator(iATName)->create(iATConfig);
settlingTime = _pyco.get<wns::simulator::Time>("settlingTime");
videoFrameRate = _pyco.get<double>("frameRate");
videoFrameIat = 1 / double(videoFrameRate);
numberOfPacketsPerFrame = _pyco.get<double>("numberOfPacketsPerFrame");
MESSAGE_BEGIN(NORMAL, logger, m, "APPL: Starting new session with: ");
m << "videoFrameRate = " << videoFrameRate;
m << ", videoFrameIat = " << videoFrameIat;
m << ", numberOfPackets = " << numberOfPacketsPerFrame;
MESSAGE_END();
state = idle;
/* only for probing */
sessionType = wimaxvideo;
packetFrom = "server.WiMAXVideo";
}
Video::~Video()
{
if(packetSizeDistribution != NULL)
delete packetSizeDistribution;
packetSizeDistribution = NULL;
if(packetIatDistribution != NULL)
delete packetIatDistribution;
packetIatDistribution = NULL;
}
void
Video::onData(const wns::osi::PDUPtr& _pdu)
{
state = running;
assureType(_pdu.getPtr(), applications::session::PDU*);
receivedPacketNumber = static_cast<applications::session::PDU*>(_pdu.getPtr())->getPacketNumber();
MESSAGE_SINGLE(NORMAL, logger, "APPL: receivedPacketNumber = " << receivedPacketNumber << ".");
applications::session::Session::incomingProbesCalculation(_pdu);
onTimeout(frametimeout);
}
void
Video::onTimeout(const Timeout& _t)
{
if(_t == statetimeout)
{
if(framePacketCounter < numberOfPacketsPerFrame)
{
framePacketCounter += 1;
packetSize = (*packetSizeDistribution)();
/* The distributed value is in byte, so it has to be converted to bit. */
packetSize *= 8.0;
MESSAGE_SINGLE(NORMAL, logger, "APPL: Sending video packet!");
applications::session::Session::iatProbesCalculation();
applications::session::PDU* applicationPDU = new applications::session::PDU(Bit(packetSize), pyco);
applicationPDU->setCreationTime(wns::simulator::getEventScheduler()->getTime());
if(firstPacketNumber == true)
{
packetNumber = 1;
applicationPDU->setPacketNumber(packetNumber, packetFrom);
MESSAGE_SINGLE(NORMAL, logger, "APPL: PacketNumber = " << packetNumber << ".");
firstPacketNumber = false;
}
else
{
++packetNumber;
applicationPDU->setPacketNumber(packetNumber, packetFrom);
MESSAGE_SINGLE(NORMAL, logger, "APPL: PacketNumber = " << packetNumber << ".");
}
wns::osi::PDUPtr pdu(applicationPDU);
applications::session::Session::outgoingProbesCalculation(pdu);
connection->sendData(pdu);
iat = (*packetIatDistribution)();
/* The distributed value is in ms, so it has to be converted to sec. */
iat /= 1000.0;
setTimeout(statetimeout, iat);
}
else
{
framePacketCounter = 0;
}
}
else if(_t == frametimeout)
{
/* Starting new frame! */
setTimeout(frametimeout, videoFrameIat);
onTimeout(statetimeout);
}
else if(_t == probetimeout)
{
applications::session::Session::onTimeout(_t);
}
else
{
assure(false, "APPL: Unknown timout type =" << _t);
}
}
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