Fixed wxMemoryOutputStream (it wasn't working at all)

Fixed wxStreamBuffer to support features of wxMemoryOutputStream
wxMMedia2 updates (various fixes)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4406 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxMMedia2/lib/sndcodec.h

@@ -23,6 +23,7 @@ class wxSoundStreamCodec: public wxSoundStream {
   bool StopProduction();
 
   void SetDuplexMode(bool duplex);
+  wxUint32 GetBestSize() const;
 
  protected:
   wxSoundStream *m_sndio;