Some more missing UTF8 conversions

modules/gui/wxwidgets/dialogs/open.cpp

@@ -1171,7 +1171,7 @@ void OpenDialog::OnOk( wxCommandEvent& WXUNUSED(event) )
 
         /* Insert options */
         while( i + 1 < (int)mrl.GetCount() &&
-               ((const char *)mrl[i + 1].mb_str())[0] == ':' )
+               ((const char *)mrl[i + 1].mb_str(wxConvUTF8))[0] == ':' )
         {
             psz_utf8 = wxFromLocale( mrl[i + 1] );
             playlist_ItemAddOption( p_item, psz_utf8 );

modules/gui/wxwidgets/dialogs/wizard.cpp

@@ -1291,7 +1291,7 @@ void wizTranscodeExtraPage::OnSelectFile( wxCommandEvent &event)
 
     if( file_dialog && file_dialog->ShowModal() == wxID_OK )
     {
-        if( file_dialog->GetFilename().mb_str() )
+        if( file_dialog->GetFilename().mb_str(wxConvUTF8) )
         {
             file_text->SetValue( file_dialog->GetPath() );
         }
@@ -1375,7 +1375,7 @@ void wizStreamingExtraPage::OnWizardPageChanging(wxWizardEvent& event)
         else
         {
             p_parent->SetSAP( true,
-                             (const char *)sap_text->GetValue().mb_str() );
+                  (const char *)sap_text->GetValue().mb_str(wxConvUTF8) );
         }
     }
     else