void init(const std::string &measuring_point); // Initializes histograms and registers them in global_metrics.
// Indices: card number, frame history number, b-frame or not (1/0).
void init(const std::string &measuring_point); // Initializes histograms and registers them in global_metrics.
// Indices: card number, frame history number, b-frame or not (1/0).