nvds_latency_meta.h

Go to the documentation of this file.

/*
 * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA Corporation and its licensors retain all intellectual property
 * and proprietary rights in and to this software, related documentation
 * and any modifications thereto.  Any use, reproduction, disclosure or
 * distribution of this software and related documentation without an express
 * license agreement from NVIDIA Corporation is strictly prohibited.
 *
 */
 
#ifndef _NVDSMETA_LATENCY_H_
#define _NVDSMETA_LATENCY_H_
 
#include "glib.h"
#include "gmodule.h"
#include "nvdsmeta.h"
 
#define MAX_COMPONENT_LEN 64
 
#ifdef __cplusplus
extern "C"
{
#endif
 
typedef struct _NvDsMetaSubCompLatency {
  gchar sub_comp_name[MAX_COMPONENT_LEN];
  gdouble in_system_timestamp;
  gdouble out_system_timestamp;
} NvDsMetaSubCompLatency;
 
typedef struct _NvDsMetaCompLatency {
  gchar component_name[MAX_COMPONENT_LEN];
  gdouble in_system_timestamp;
  gdouble out_system_timestamp;
  guint source_id;
  guint frame_num;
  guint pad_index;
  NvDsMetaSubCompLatency sub_comp_latencies[16];
  guint num_sub_comps;
}NvDsMetaCompLatency;
 
typedef struct
{
  guint source_id;
  guint frame_num;
  gdouble comp_in_timestamp;
  gdouble latency;
} NvDsFrameLatencyInfo;
 
NvDsUserMeta *nvds_set_input_system_timestamp(GstBuffer * buffer,
    gchar *element_name);
 
gboolean nvds_set_output_system_timestamp(GstBuffer * buffer, gchar *element_name);
 
guint nvds_measure_buffer_latency(GstBuffer *buf,
    NvDsFrameLatencyInfo *latency_info);
 
gboolean nvds_get_enable_latency_measurement(void);
 
void nvds_add_reference_timestamp_meta(GstBuffer * buffer,
    gchar *element_name, guint frame_id);
 
#define nvds_enable_latency_measurement (nvds_get_enable_latency_measurement())
 
#ifdef __cplusplus
}
#endif
#endif