/***************************************************************************    copyright            : (C) 2002, 2003, 2006 by Jochen Issing    email                : jochen.issing@isign-softart.de ***************************************************************************//*************************************************************************** *   This library is free software; you can redistribute it and/or modify  * *   it  under the terms of the GNU Lesser General Public License version  * *   2.1 as published by the Free Software Foundation.                     * *                                                                         * *   This library 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 library; if not, write to the Free Software   * *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,            * *   MA  02110-1301  USA                                                   * ***************************************************************************/#include "tlist.h"#include <iostream>#include "mp4mdiabox.h"#include "mp4hdlrbox.h"#include "mp4minfbox.h"#include "boxfactory.h"#include "mp4file.h"using namespace TagLib;class MP4::Mp4MdiaBox::Mp4MdiaBoxPrivate{public:  //! container for all boxes in mdia box  TagLib::List<Mp4IsoBox*> mdiaBoxes;  //! a box factory for creating the appropriate boxes  MP4::BoxFactory        boxfactory;}; // class Mp4MdiaBoxPrivateMP4::Mp4MdiaBox::Mp4MdiaBox( TagLib::File* file, MP4::Fourcc fourcc, TagLib::uint size, long offset )	: Mp4IsoBox( file, fourcc, size, offset ){  d = new MP4::Mp4MdiaBox::Mp4MdiaBoxPrivate();}MP4::Mp4MdiaBox::~Mp4MdiaBox(){  TagLib::List<Mp4IsoBox*>::Iterator delIter;  for( delIter  = d->mdiaBoxes.begin();       delIter != d->mdiaBoxes.end();       delIter++ )  {    delete *delIter;  }  delete d;}void MP4::Mp4MdiaBox::parse(){  TagLib::MP4::File* mp4file = static_cast<MP4::File*>( file() );  TagLib::uint totalsize = 8;  // parse all contained boxes  TagLib::uint size;  MP4::Fourcc  fourcc;  // stores the current handler type  TagLib::MP4::Fourcc hdlrtype;  while( (mp4file->readSizeAndType( size, fourcc ) == true)  )  {    totalsize += size;    // check for errors    if( totalsize > MP4::Mp4IsoBox::size() )    {      std::cerr << "Error in mp4 file " << mp4file->name() << " mdia box contains bad box with name: " << fourcc.toString() << std::endl;      return;    }    // create the appropriate subclass and parse it    MP4::Mp4IsoBox* curbox = d->boxfactory.createInstance( mp4file, fourcc, size, mp4file->tell() );    if( static_cast<TagLib::uint>( fourcc ) == 0x6d696e66 /*"minf"*/ )    {      // cast to minf      Mp4MinfBox* minfbox = dynamic_cast<Mp4MinfBox*>( curbox );      if(!minfbox)	return;      // set handler type      minfbox->setHandlerType( hdlrtype );    }    curbox->parsebox();    d->mdiaBoxes.append( curbox );    if(static_cast<TagLib::uint>( fourcc ) == 0x68646c72 /*"hdlr"*/ )    {      // cast to hdlr box      Mp4HdlrBox* hdlrbox = dynamic_cast<Mp4HdlrBox*>( curbox );      if(!hdlrbox)	return;      // get handler type      hdlrtype = hdlrbox->hdlr_type();    }    // check for end of mdia box    if( totalsize == MP4::Mp4IsoBox::size() )      break;  }}