modules/stream_filter/dash/mpd/BasicCMParser.cpp

   1 /*
   2  * BasicCMParser.cpp
   3  *****************************************************************************
   4  * Copyright (C) 2010 - 2011 Klagenfurt University
   5  *
   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>
   9  *
  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.
  14  *
  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.
  19  *
  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  *****************************************************************************/
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include "BasicCMParser.h"
  29
  30 using namespace dash::mpd;
  31 using namespace dash::xml;
  32
  33 BasicCMParser::BasicCMParser    (Node *root)
  34 {
  35     this->root = root;
  36 }
  37 BasicCMParser::~BasicCMParser   ()
  38 {
  39 }
  40
  41 bool    BasicCMParser::parse                ()
  42 {
  43     this->setMPD();
  44     return true;
  45 }
  46 void    BasicCMParser::setMPD               ()
  47 {
  48     this->mpd = new MPD(this->root->getAttributes());
  49     this->setMPDBaseUrl(this->root);
  50     this->setPeriods(this->root);
  51 }
  52 void    BasicCMParser::setMPDBaseUrl        (Node *root)
  53 {
  54     std::vector<Node *> baseUrls = DOMHelper::getChildElementByTagName(root, "BaseURL");
  55
  56     for(size_t i = 0; i < baseUrls.size(); i++)
  57     {
  58         BaseUrl *url = new BaseUrl(baseUrls.at(i)->getText());
  59         this->mpd->addBaseUrl(url);
  60     }
  61 }
  62 void    BasicCMParser::setPeriods           (Node *root)
  63 {
  64     std::vector<Node *> periods = DOMHelper::getElementByTagName(root, "Period", false);
  65
  66     for(size_t i = 0; i < periods.size(); i++)
  67     {
  68         Period *period = new Period(periods.at(i)->getAttributes());
  69         this->setGroups(periods.at(i), period);
  70         this->mpd->addPeriod(period);
  71     }
  72 }
  73 void    BasicCMParser::setGroups            (Node *root, Period *period)
  74 {
  75     std::vector<Node *> groups = DOMHelper::getElementByTagName(root, "Group", false);
  76
  77     for(size_t i = 0; i < groups.size(); i++)
  78     {
  79         Group *group = new Group(groups.at(i)->getAttributes());
  80         this->setRepresentations(groups.at(i), group);
  81         period->addGroup(group);
  82     }
  83 }
  84 void    BasicCMParser::setRepresentations   (Node *root, Group *group)
  85 {
  86     std::vector<Node *> representations = DOMHelper::getElementByTagName(root, "Representation", false);
  87
  88     for(size_t i = 0; i < representations.size(); i++)
  89     {
  90         Representation *rep = new Representation(representations.at(i)->getAttributes());
  91         this->setSegmentInfo(representations.at(i), rep);
  92         group->addRepresentation(rep);
  93     }
  94 }
  95 void    BasicCMParser::setSegmentInfo       (Node *root, Representation *rep)
  96 {
  97     std::vector<Node *> segmentInfo = DOMHelper::getChildElementByTagName(root, "SegmentInfo");
  98
  99     for(size_t i = 0; i < segmentInfo.size(); i++)
 100     {
 101         SegmentInfo *info = new SegmentInfo(segmentInfo.at(i)->getAttributes());
 102         this->setInitSegment(segmentInfo.at(i), info);
 103         this->setSegments(segmentInfo.at(i), info);
 104         rep->setSegmentInfo(info);
 105         return;
 106     }
 107 }
 108 void    BasicCMParser::setInitSegment       (Node *root, SegmentInfo *info)
 109 {
 110     std::vector<Node *> initSeg = DOMHelper::getChildElementByTagName(root, "InitialisationSegmentURL");
 111
 112     for(size_t i = 0; i < initSeg.size(); i++)
 113     {
 114         InitSegment *seg = new InitSegment(initSeg.at(i)->getAttributes());
 115         info->setInitSegment(seg);
 116         return;
 117     }
 118 }
 119 void    BasicCMParser::setSegments          (Node *root, SegmentInfo *info)
 120 {
 121     std::vector<Node *> segments = DOMHelper::getElementByTagName(root, "Url", false);
 122
 123     for(size_t i = 0; i < segments.size(); i++)
 124     {
 125         Segment *seg = new Segment(segments.at(i)->getAttributes());
 126         info->addSegment(seg);
 127     }
 128 }
 129 MPD*    BasicCMParser::getMPD               ()
 130 {
 131     return this->mpd;
 132 }