AudioProcessor: Fixed MP3 codec leak when destroyed without closure

Author: Wohlstand

_common/AudioProcessor/codec/audio_mp3.cpp

@@ -47,6 +47,7 @@ MDAudioMP3::MDAudioMP3() :
 
 MDAudioMP3::~MDAudioMP3()
 {
+    MDAudioMP3::close();
     delete m_mp3file;
 }