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141 lines
4.1 KiB
141 lines
4.1 KiB
/***************************************************************************
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copyright : (C) 2002, 2003, 2006 by Jochen Issing
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email : jochen.issing@isign-softart.de
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***************************************************************************/
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/***************************************************************************
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License version *
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* 2.1 as published by the Free Software Foundation. *
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* *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, *
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* MA 02110-1301 USA *
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***************************************************************************/
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#include <deque>
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#include <iostream>
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#include "mp4mvhdbox.h"
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#include "boxfactory.h"
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#include "mp4file.h"
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#include "mp4propsproxy.h"
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using namespace TagLib;
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class MP4::Mp4MvhdBox::Mp4MvhdBoxPrivate
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{
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public:
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//! creation time of the file
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TagLib::ulonglong creationTime;
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//! modification time of the file - since midnight, Jan. 1, 1904, UTC-time
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TagLib::ulonglong modificationTime;
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//! timescale for the file - referred by all time specifications in this box
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TagLib::uint timescale;
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//! duration of presentation
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TagLib::ulonglong duration;
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//! playout speed
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TagLib::uint rate;
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//! volume for entire presentation
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TagLib::uint volume;
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//! track ID for an additional track (next new track)
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TagLib::uint nextTrackID;
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}; // class Mp4MvhdBoxPrivate
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MP4::Mp4MvhdBox::Mp4MvhdBox( TagLib::File* file, MP4::Fourcc fourcc, TagLib::uint size, long offset )
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: Mp4IsoFullBox( file, fourcc, size, offset )
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{
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d = new MP4::Mp4MvhdBox::Mp4MvhdBoxPrivate();
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}
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MP4::Mp4MvhdBox::~Mp4MvhdBox()
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{
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delete d;
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}
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TagLib::ulonglong MP4::Mp4MvhdBox::creationTime() const
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{
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return d->creationTime;
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}
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TagLib::ulonglong MP4::Mp4MvhdBox::modificationTime() const
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{
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return d->modificationTime;
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}
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TagLib::uint MP4::Mp4MvhdBox::timescale() const
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{
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return d->timescale;
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}
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TagLib::ulonglong MP4::Mp4MvhdBox::duration() const
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{
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return d->duration;
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}
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TagLib::uint MP4::Mp4MvhdBox::rate() const
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{
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return d->rate;
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}
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TagLib::uint MP4::Mp4MvhdBox::volume() const
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{
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return d->volume;
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}
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TagLib::uint MP4::Mp4MvhdBox::nextTrackID() const
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{
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return d->nextTrackID;
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}
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void MP4::Mp4MvhdBox::parse()
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{
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TagLib::MP4::File* mp4file = static_cast<MP4::File*>( file() );
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if( version() == 1 )
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{
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if( !mp4file->readLongLong( d->creationTime ) )
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return;
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if( !mp4file->readLongLong( d->modificationTime ) )
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return;
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if( !mp4file->readInt( d->timescale ) )
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return;
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if( !mp4file->readLongLong( d->duration ) )
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return;
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}
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else
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{
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TagLib::uint creationTime_tmp, modificationTime_tmp, duration_tmp;
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if( !mp4file->readInt( creationTime_tmp ) )
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return;
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if( !mp4file->readInt( modificationTime_tmp ) )
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return;
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if( !mp4file->readInt( d->timescale ) )
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return;
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if( !mp4file->readInt( duration_tmp ) )
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return;
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d->creationTime = creationTime_tmp;
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d->modificationTime = modificationTime_tmp;
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d->duration = duration_tmp;
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}
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if( !mp4file->readInt( d->rate ) )
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return;
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if( !mp4file->readInt( d->volume ) )
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return;
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// jump over unused fields
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mp4file->seek( 68, File::Current );
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if( !mp4file->readInt( d->nextTrackID ) )
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return;
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// register at proxy
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mp4file->propProxy()->registerMvhd( this );
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}
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