Refactor controls

src/process_pipeline.c

@@ -1083,6 +1083,10 @@ update_state(MPPipeline *pipeline, const struct mp_process_pipeline_state *state
                 .has_auto_focus_start = state->has_auto_focus_start,
                 .preview_buffer_width = output_buffer_width,
                 .preview_buffer_height = output_buffer_height,
+                .control_gain = state->control_gain,
+                .control_exposure = state->control_exposure,
+                .control_focus = state->control_focus,
+                .control_flash = state->control_flash,
         };
         mp_main_update_state(&new_state);
 }