1 files changed, 91 insertions, 0 deletions
diff --git a/src/metadata/m4a/mp4stsdbox.cpp b/src/metadata/m4a/mp4stsdbox.cpp
new file mode 100644
index 0000000..6bb8cbe
--- /dev/null
+++ b/src/metadata/m4a/mp4stsdbox.cpp
@@ -0,0 +1,91 @@
+/***************************************************************************
+    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 "mp4stsdbox.h"
+#include "mp4audiosampleentry.h"
+#include "mp4file.h"
+
+using namespace TagLib;
+
+class MP4::Mp4StsdBox::Mp4StsdBoxPrivate
+{
+public:
+  //! the handler type for the current trak
+  MP4::Fourcc   handler_type;
+  //! the audio sample entry
+  MP4::Mp4AudioSampleEntry* audioSampleEntry;
+}; // class Mp4StsdBoxPrivate
+
+MP4::Mp4StsdBox::Mp4StsdBox( TagLib::File* file, MP4::Fourcc fourcc, TagLib::uint size, long offset )
+	: Mp4IsoFullBox( file, fourcc, size, offset )
+{
+  d = new MP4::Mp4StsdBox::Mp4StsdBoxPrivate();
+}
+
+MP4::Mp4StsdBox::~Mp4StsdBox()
+{
+  delete d;
+}
+
+void MP4::Mp4StsdBox::setHandlerType( MP4::Fourcc fourcc )
+{
+  d->handler_type = fourcc;
+}
+
+void MP4::Mp4StsdBox::parse()
+{
+  MP4::File* mp4file = dynamic_cast<MP4::File*>( file() );
+  if(!mp4file)
+    return;
+
+  TagLib::uint totalsize = 12; // initial size of box
+
+  // check for handler type - only parse if 'soun':
+  if( static_cast<TagLib::uint>(d->handler_type) == 0x736f756e )
+  {
+    // read entry count
+    TagLib::uint entry_count;
+    if(!mp4file->readInt( entry_count ))
+      return;
+
+    // simply read first entry and skip all following
+    // read size and type
+    TagLib::uint cursize;
+    MP4::Fourcc  fourcc;
+    if( !mp4file->readSizeAndType( cursize, fourcc ))
+      return;
+
+    totalsize += 12;
+    // alocate an AudioSampleEntry
+    d->audioSampleEntry = new MP4::Mp4AudioSampleEntry( mp4file, fourcc, cursize, mp4file->tell() );
+    // parse the AudioSampleEntry
+    d->audioSampleEntry->parse();
+    totalsize += cursize-8;
+    // skip the remaining box contents
+    mp4file->seek( size()-totalsize, TagLib::File::Current );
+  }
+  else
+  {
+    mp4file->seek( size()-totalsize, TagLib::File::Current );
+  }
+}