Don't notify playlist several times while preparsing

include/vlc_input.h

@@ -387,6 +387,7 @@ struct input_thread_t
     vlc_bool_t  b_eof;
     vlc_bool_t  b_can_pace_control;
     vlc_bool_t  b_can_pause;
+    vlc_bool_t  b_preparsing;
 
     /* Global state */
     int         i_state;

src/input/control.c

@@ -195,6 +195,7 @@ int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
 
             vlc_mutex_unlock( &p_input->input.p_item->lock );
 
+            if( !p_input->b_preparsing )
                 NotifyPlaylist( p_input );
         }
         return VLC_SUCCESS;
@@ -240,6 +241,7 @@ int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
             if( i >= p_cat->i_infos )
                 return VLC_EGENERIC;
 
+            if( !p_input->b_preparsing )
                 NotifyPlaylist( p_input );
         }
         return VLC_SUCCESS;
@@ -270,6 +272,7 @@ int input_vaControl( input_thread_t *p_input, int i_query, va_list args )
             p_input->input.p_item->psz_name = strdup( psz_name );
             vlc_mutex_unlock( &p_input->input.p_item->lock );
 
+            if( !p_input->b_preparsing )
                 NotifyPlaylist( p_input );
 
             return VLC_SUCCESS;