message: Fixed crash when enablingSlideShowBelowSpatialLayer when un initialized
diff: @@ -270,9 +270,13 @@ void QualityManager::enableSlideShowBelowSpatialLayer(bool enable, int spatial_l
  enable_slideshow_below_spatial_layer_ = enable;
  slideshow_below_spatial_layer_ = spatial_layer;
  - stream_->notifyMediaStreamEvent("slideshow_fallback_update", "false");
  + if (!initialized_) {
  + return;
  + }
  + stream_->notifyMediaStreamEvent("slideshow_fallback_update", "false");
  freeze_fallback_active_ = false;
  +
  selectLayer(true);
  }
  