1 files changed, 140 insertions, 0 deletions
diff --git a/src/metadata/m4a/mp4mvhdbox.cpp b/src/metadata/m4a/mp4mvhdbox.cpp
new file mode 100644
index 0000000..36053e4
--- /dev/null
+++ b/src/metadata/m4a/mp4mvhdbox.cpp
@@ -0,0 +1,140 @@
+/***************************************************************************
+    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;
+  //! playout 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 );
+}