2 * RateBasedAdaptationLogic.cpp
3 *****************************************************************************
4 * Copyright (C) 2010 - 2011 Klagenfurt University
6 * Created on: Aug 10, 2010
7 * Authors: Christopher Mueller <christopher.mueller@itec.uni-klu.ac.at>
8 * Christian Timmerer <christian.timmerer@itec.uni-klu.ac.at>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published
12 * by the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
28 #include "RateBasedAdaptationLogic.h"
30 using namespace dash::logic;
31 using namespace dash::xml;
32 using namespace dash::http;
33 using namespace dash::mpd;
34 using namespace dash::exception;
36 RateBasedAdaptationLogic::RateBasedAdaptationLogic (IMPDManager *mpdManager) :
37 AbstractAdaptationLogic( mpdManager ),
38 mpdManager( mpdManager ),
40 currentPeriod( mpdManager->getFirstPeriod() )
44 Chunk* RateBasedAdaptationLogic::getNextChunk () throw(EOFException)
46 if(this->mpdManager == NULL)
49 if(this->currentPeriod == NULL)
52 long bitrate = this->getBpsAvg();
54 Representation *rep = this->mpdManager->getRepresentation(this->currentPeriod, bitrate);
59 std::vector<ISegment *> segments = this->mpdManager->getSegments(rep);
61 if(this->count == segments.size())
63 this->currentPeriod = this->mpdManager->getNextPeriod(this->currentPeriod);
65 return this->getNextChunk();
68 if ( segments.size() > this->count )
70 Chunk *chunk = new Chunk;
71 chunk->setUrl( segments.at( this->count )->getSourceUrl() );