1 files changed, 105 insertions, 0 deletions
diff --git a/src/metadata/m4a/mp4stblbox.cpp b/src/metadata/m4a/mp4stblbox.cpp
new file mode 100644
index 0000000..f67de59
--- /dev/null
+++ b/src/metadata/m4a/mp4stblbox.cpp
@@ -0,0 +1,105 @@
+/***************************************************************************
+    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 "mp4stblbox.h"
+#include "mp4stsdbox.h"
+#include "boxfactory.h"
+#include "mp4file.h"
+
+using namespace TagLib;
+
+class MP4::Mp4StblBox::Mp4StblBoxPrivate
+{
+public:
+  //! container for all boxes in stbl box
+  TagLib::List<Mp4IsoBox*> stblBoxes;
+  //! a box factory for creating the appropriate boxes
+  MP4::BoxFactory        boxfactory;
+  //! the handler type for the current trak
+  MP4::Fourcc            handler_type;
+}; // class Mp4StblBoxPrivate
+
+MP4::Mp4StblBox::Mp4StblBox( TagLib::File* file, MP4::Fourcc fourcc, TagLib::uint size, long offset )
+	: Mp4IsoBox( file, fourcc, size, offset )
+{
+  d = new MP4::Mp4StblBox::Mp4StblBoxPrivate();
+}
+
+MP4::Mp4StblBox::~Mp4StblBox()
+{
+  TagLib::List<Mp4IsoBox*>::Iterator delIter;
+  for( delIter  = d->stblBoxes.begin();
+       delIter != d->stblBoxes.end();
+       delIter++ )
+  {
+    delete *delIter;
+  }
+  delete d;
+}
+
+void MP4::Mp4StblBox::setHandlerType( MP4::Fourcc fourcc )
+{
+  d->handler_type = fourcc;
+}
+
+void MP4::Mp4StblBox::parse()
+{
+  TagLib::MP4::File* mp4file = static_cast<MP4::File*>( file() );
+
+  TagLib::uint totalsize = 8;
+  // parse all contained boxes
+  TagLib::uint size;
+  MP4::Fourcc  fourcc;
+
+  while( (mp4file->readSizeAndType( size, fourcc ) == true)  )
+  {
+    totalsize += size;
+
+    // check for errors
+    if( totalsize > MP4::Mp4IsoBox::size() )
+    {
+      std::cerr << "Error in mp4 file " << mp4file->name() << " stbl 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() );
+
+    // check for stsd
+    if( static_cast<TagLib::uint>(fourcc) == 0x73747364 /*'stsd'*/ )
+    {
+      // cast to stsd box
+      MP4::Mp4StsdBox* stsdbox = dynamic_cast<MP4::Mp4StsdBox*>(curbox);
+      if(!stsdbox)
+	return;
+      // set the handler type
+      stsdbox->setHandlerType( d->handler_type );
+    }
+    curbox->parsebox();
+    d->stblBoxes.append( curbox );
+
+    // check for end of stbl box
+    if( totalsize == MP4::Mp4IsoBox::size() )
+      break;
+  }
+}