// These need to survive several QuickSyncEncoderImpl instances,
// so they are outside.
-bool quick_sync_metrics_inited = false;
+once_flag quick_sync_metrics_inited;
LatencyHistogram mixer_latency_histogram, qs_latency_histogram;
MuxMetrics current_file_mux_metrics, total_mux_metrics;
std::atomic<double> metric_current_file_start_time_seconds{0.0 / 0.0};
memset(&slice_param, 0, sizeof(slice_param));
}
- if (!quick_sync_metrics_inited) {
+ call_once(quick_sync_metrics_inited, [](){
mixer_latency_histogram.init("mixer");
qs_latency_histogram.init("quick_sync");
current_file_mux_metrics.init({{ "destination", "current_file" }});
total_mux_metrics.init({{ "destination", "files_total" }});
global_metrics.add("current_file_start_time_seconds", &metric_current_file_start_time_seconds, Metrics::TYPE_GAUGE);
global_metrics.add("quick_sync_stalled_frames", &metric_quick_sync_stalled_frames);
- quick_sync_metrics_inited = true;
- }
+ });
storage_thread = thread(&QuickSyncEncoderImpl::storage_task_thread, this);