nvds_latency_meta.h

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/*
 * 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