Do not use input while not referenced

modules/stream_out/description.c

@@ -59,8 +59,6 @@ vlc_module_end ()
 
 struct sout_stream_sys_t
 {
-    input_thread_t *p_input;
-
     mtime_t i_stream_start;
 };
 
@@ -82,8 +80,6 @@ static int Open( vlc_object_t *p_this )
     p_stream->pf_send = Send;
     p_sys = p_stream->p_sys = malloc(sizeof(sout_stream_sys_t));
 
-    p_sys->p_input = NULL;
-
     p_sys->i_stream_start = 0;
 
     return VLC_SUCCESS;
@@ -108,25 +104,13 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
     sout_stream_id_t *id;
     es_format_t *p_fmt_copy;
     input_item_t *p_item;
+    input_thread_t *p_input;
 
     msg_Dbg( p_stream, "Adding a stream" );
+    p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT, FIND_PARENT );
+    assert( p_input );
  
-    if( !p_sys->p_input )
-    {
-        p_sys->p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT,
-                FIND_PARENT );
-        /* This module is a children of the input object
-         * We don't want to keep a reference on it, because we will be alive
-         * as long as the input is alive.
-         *
-         * Since vlc_object_find() increments the reference count,
-         * we release the input just after finding it.
-         * */
-        assert( p_sys->p_input );
-        vlc_object_release( p_sys->p_input );
-    }
- 
-    p_item = input_GetItem(p_sys->p_input);
+    p_item = input_GetItem(p_input);
 
     p_fmt_copy = malloc(sizeof(es_format_t));
     es_format_Copy( p_fmt_copy, p_fmt );
@@ -134,6 +118,7 @@ static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
     vlc_mutex_lock( &p_item->lock );
     TAB_APPEND( p_item->i_es, p_item->es, p_fmt_copy );
     vlc_mutex_unlock( &p_item->lock );
+    vlc_object_release( p_input );
 
     if( p_sys->i_stream_start <= 0 )
         p_sys->i_stream_start = mdate();
@@ -159,8 +144,17 @@ static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
 
     block_ChainRelease( p_buffer );
 
-    if( p_sys->p_input && p_sys->i_stream_start + 1500000 < mdate() )
-        p_sys->p_input->b_eof = true;
+    if( p_sys->i_stream_start + 1500000 < mdate() )
+    {
+        input_thread_t *p_input;
+
+        p_input = vlc_object_find( p_stream, VLC_OBJECT_INPUT, FIND_PARENT );
+        if( p_input )
+        {
+            p_input->b_eof = true;
+            vlc_object_release( p_input );
+        }
+    }
 
     return VLC_SUCCESS;
 }