MKV : Fix some memory leaks in the EBML parser.

Signed-off-by: Rémi Duraffort <ivoire@videolan.org>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/demux/mkv/Ebml_parser.cpp

@@ -48,6 +48,12 @@ EbmlParser::EbmlParser( EbmlStream *es, EbmlElement *el_start, demux_t *p_demux
 
 EbmlParser::~EbmlParser( void )
 {
+    if( !mi_level )
+    {
+        delete m_el[1];
+        return;
+    }
+
     int i;
 
     for( i = 1; i < mi_level; i++ )