global_metrics.add("frames_output_total", &metric_frames_output_total);
global_metrics.add("frames_output_dropped", &metric_frames_output_dropped);
global_metrics.add("uptime_seconds", &metric_uptime_seconds);
global_metrics.add("frames_output_total", &metric_frames_output_total);
global_metrics.add("frames_output_dropped", &metric_frames_output_dropped);
global_metrics.add("uptime_seconds", &metric_uptime_seconds);