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/***************************************************************************
copyright : (C) 2002, 2003, 2006 by Jochen Issing
email : [email protected]
***************************************************************************/
/***************************************************************************
* 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 <deque>
#include <iostream>
#include "mp4mvhdbox.h"
#include "boxfactory.h"
#include "mp4file.h"
#include "mp4propsproxy.h"
using namespace TagLib;
class MP4::Mp4MvhdBox::Mp4MvhdBoxPrivate
{
public:
//! creation time of the file
TagLib::ulonglong creationTime;
//! modification time of the file - since midnight, Jan. 1, 1904, UTC-time
TagLib::ulonglong modificationTime;
//! timescale for the file - referred by all time specifications in this box
TagLib::uint timescale;
//! duration of presentation
TagLib::ulonglong duration;
//! ptqlayout speed
TagLib::uint rate;
//! volume for entire presentation
TagLib::uint volume;
//! track ID for an additional track (next new track)
TagLib::uint nextTrackID;
}; // class Mp4MvhdBoxPrivate
MP4::Mp4MvhdBox::Mp4MvhdBox( TagLib::File* file, MP4::Fourcc fourcc, TagLib::uint size, long offset )
: Mp4IsoFullBox( file, fourcc, size, offset )
{
d = new MP4::Mp4MvhdBox::Mp4MvhdBoxPrivate();
}
MP4::Mp4MvhdBox::~Mp4MvhdBox()
{
delete d;
}
TagLib::ulonglong MP4::Mp4MvhdBox::creationTime() const
{
return d->creationTime;
}
TagLib::ulonglong MP4::Mp4MvhdBox::modificationTime() const
{
return d->modificationTime;
}
TagLib::uint MP4::Mp4MvhdBox::timescale() const
{
return d->timescale;
}
TagLib::ulonglong MP4::Mp4MvhdBox::duration() const
{
return d->duration;
}
TagLib::uint MP4::Mp4MvhdBox::rate() const
{
return d->rate;
}
TagLib::uint MP4::Mp4MvhdBox::volume() const
{
return d->volume;
}
TagLib::uint MP4::Mp4MvhdBox::nextTrackID() const
{
return d->nextTrackID;
}
void MP4::Mp4MvhdBox::parse()
{
TagLib::MP4::File* mp4file = static_cast<MP4::File*>( file() );
if( version() == 1 )
{
if( !mp4file->readLongLong( d->creationTime ) )
return;
if( !mp4file->readLongLong( d->modificationTime ) )
return;
if( !mp4file->readInt( d->timescale ) )
return;
if( !mp4file->readLongLong( d->duration ) )
return;
}
else
{
TagLib::uint creationTime_tmp, modificationTime_tmp, duration_tmp;
if( !mp4file->readInt( creationTime_tmp ) )
return;
if( !mp4file->readInt( modificationTime_tmp ) )
return;
if( !mp4file->readInt( d->timescale ) )
return;
if( !mp4file->readInt( duration_tmp ) )
return;
d->creationTime = creationTime_tmp;
d->modificationTime = modificationTime_tmp;
d->duration = duration_tmp;
}
if( !mp4file->readInt( d->rate ) )
return;
if( !mp4file->readInt( d->volume ) )
return;
// jump over unused fields
mp4file->seek( 68, File::Current );
if( !mp4file->readInt( d->nextTrackID ) )
return;
// register at proxy
mp4file->propProxy()->registerMvhd( this );
}
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