sources/includes/nvds_latency_meta.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2019-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#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);
 
gboolean nvds_get_latency_measurement_silent(void);
 
#define nvds_enable_latency_measurement (nvds_get_enable_latency_measurement())
 
#define nvds_latency_measurement_silent (nvds_get_latency_measurement_silent())
 
#ifdef __cplusplus
}
#endif
#endif