filters: drain filter chains after the regular picture filtering

modules/stream_out/mosaic_bridge.c

@@ -597,13 +597,13 @@ static void decoder_queue_video( decoder_t *p_dec, picture_t *p_pic )
     if( p_sys->p_vf2 )
     {
         /* push the picture in the mosaic-struct structure */
-        p_new_pic = filter_chain_VideoFilter( p_sys->p_vf2, NULL );
+        p_new_pic = filter_chain_VideoDrain( p_sys->p_vf2 );
         while ( p_new_pic != NULL )
         {
             vlc_global_lock( VLC_MOSAIC_MUTEX );
             vlc_picture_chain_Append( &p_es->pictures, p_new_pic );
             vlc_global_unlock( VLC_MOSAIC_MUTEX );
-            p_new_pic = filter_chain_VideoFilter( p_sys->p_vf2, NULL );
+            p_new_pic = filter_chain_VideoDrain( p_sys->p_vf2 );
         }
     }
 }

modules/stream_out/sdi/SDIStream.cpp

@@ -589,11 +589,11 @@ void VideoDecodedStream::Output(picture_t *p_pic)
         outputbuffer->Enqueue(p_pic);
     if(p_filters_chain)
     {
-        p_pic = filter_chain_VideoFilter(p_filters_chain, NULL);
+        p_pic = filter_chain_VideoDrain(p_filters_chain);
         while (p_pic)
         {
             outputbuffer->Enqueue(p_pic);
-            p_pic = filter_chain_VideoFilter(p_filters_chain, NULL);
+            p_pic = filter_chain_VideoDrain(p_filters_chain);
         }
     }
 }