nvdsinfer_context.h

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2018-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: LicenseRef-NvidiaProprietary
 *
 * NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
 * property and proprietary rights in and to this material, related
 * documentation and any modifications thereto. Any use, reproduction,
 * disclosure or distribution of this material and related documentation
 * without an express license agreement from NVIDIA CORPORATION or
 * its affiliates is strictly prohibited.
 */
 
#ifndef __NVDSINFER_CONTEXT_H__
#define __NVDSINFER_CONTEXT_H__
 
#include "nvdsinfer.h"
 
#define _PATH_MAX 4096
 
#define _MAX_CHANNELS 4
 
#define _MAX_STR_LENGTH 1024
 
#define NVDSINFER_MAX_BATCH_SIZE 1024
 
#define NVDSINFER_MIN_OUTPUT_BUFFERPOOL_SIZE 2
 
typedef enum
{
    NvDsInferNetworkMode_FP32,
    NvDsInferNetworkMode_INT8,
    NvDsInferNetworkMode_FP16,
    NvDsInferNetworkMode_BEST
} NvDsInferNetworkMode;
 
typedef enum
{
    NvDsInferNetworkType_Detector,
    NvDsInferNetworkType_Classifier,
    NvDsInferNetworkType_Segmentation,
    NvDsInferNetworkType_InstanceSegmentation,
    NvDsInferNetworkType_Other = 100
} NvDsInferNetworkType;
 
typedef enum
{
    NvDsInferFormat_RGB,
    NvDsInferFormat_BGR,
    NvDsInferFormat_GRAY,
    NvDsInferFormat_RGBA,
    NvDsInferFormat_BGRx,
    NvDsInferFormat_Tensor,
    NvDsInferFormat_Unknown = 0xFFFFFFFF,
} NvDsInferFormat;
 
typedef enum {
    NvDsInferTensorOrder_kNCHW,
    NvDsInferTensorOrder_kNHWC,
    NvDsInferTensorOrder_kNC,
    NvDsInferUffOrder_kNCHW _DS_DEPRECATED_("Use NvDsInferTensorOrder_kNCHW instead") = NvDsInferTensorOrder_kNCHW,
    NvDsInferUffOrder_kNHWC _DS_DEPRECATED_("Use NvDsInferTensorOrder_kNCWH instead") = NvDsInferTensorOrder_kNHWC,
    NvDsInferUffOrder_kNC _DS_DEPRECATED_("Use NvDsInferTensorOrder_kNC instead") = NvDsInferTensorOrder_kNC
} NvDsInferTensorOrder;
 
#define NvDsInferUffOrder _Pragma \
    ("GCC warning \"'NvDsInferUffOrder' macro is deprecated. Use NvDsInferTensorOrder instead.\"") \
    NvDsInferTensorOrder
 
typedef struct
{
    union {
    float threshold _DS_DEPRECATED_("Use preclusterThreshold instead.");
    float preClusterThreshold;
    };
 
    float postClusterThreshold;
 
    float eps;
    int minBoxes;
    int groupThreshold;
    float minScore;
    float nmsIOUThreshold;
    int topK;
} NvDsInferDetectionParams;
 
typedef enum
{
    NVDSINFER_CLUSTER_GROUP_RECTANGLES = 0,
    NVDSINFER_CLUSTER_DBSCAN,
    NVDSINFER_CLUSTER_NMS,
    NVDSINFER_CLUSTER_DBSCAN_NMS_HYBRID,
    NVDSINFER_CLUSTER_NONE
} NvDsInferClusterMode;
typedef struct _NvDsInferContextInitParams
{
    unsigned int uniqueID;
 
    NvDsInferNetworkMode networkMode;
 
    char protoFilePath[_PATH_MAX];
    char modelFilePath[_PATH_MAX];
    char uffFilePath[_PATH_MAX];
    char onnxFilePath[_PATH_MAX];
    char tltEncodedModelFilePath[_PATH_MAX];
 
    char int8CalibrationFilePath[_PATH_MAX];
 
    union {
      NvDsInferDimsCHW inputDims;
      NvDsInferDimsCHW uffDimsCHW;
    } _DS_DEPRECATED_("Use inferInputDims instead.");
 
    NvDsInferTensorOrder uffInputOrder;
    char uffInputBlobName[_MAX_STR_LENGTH];
 
    NvDsInferTensorOrder netInputOrder;
 
    char tltModelKey[_MAX_STR_LENGTH];
 
    char modelEngineFilePath[_PATH_MAX];
 
    unsigned int maxBatchSize;
 
    char labelsFilePath[_PATH_MAX];
 
    char meanImageFilePath[_PATH_MAX];
 
    float networkScaleFactor;
 
    NvDsInferFormat networkInputFormat;
 
    float offsets[_MAX_CHANNELS];
    unsigned int numOffsets;
 
    NvDsInferNetworkType networkType;
 
    _DS_DEPRECATED_("Use NvDsInferClusterMode instead")
    int useDBScan;
 
    unsigned int numDetectedClasses;
 
    NvDsInferDetectionParams *perClassDetectionParams;
 
    float classifierThreshold;
 
    float segmentationThreshold;
 
    char ** outputLayerNames;
    unsigned int numOutputLayers;
 
 
    char customLibPath[_PATH_MAX];
    char customBBoxParseFuncName[_MAX_STR_LENGTH];
    char customClassifierParseFuncName[_MAX_STR_LENGTH];
 
    int copyInputToHostBuffers;
 
    unsigned int gpuID;
 
    int useDLA;
    int dlaCore;
 
    unsigned int outputBufferPoolSize;
 
    char customNetworkConfigFilePath[_PATH_MAX];
 
    char customEngineCreateFuncName[_MAX_STR_LENGTH];
 
    int forceImplicitBatchDimension;
 
    unsigned int workspaceSize;
 
    NvDsInferDimsCHW inferInputDims;
 
    NvDsInferClusterMode clusterMode;
 
    char customBBoxInstanceMaskParseFuncName[_MAX_STR_LENGTH];
 
    char ** outputIOFormats;
    unsigned int numOutputIOFormats;
 
    char customSegmentationParseFuncName[_MAX_STR_LENGTH];
 
    char ** layerDevicePrecisions;
    unsigned int numLayerDevicePrecisions;
 
    NvDsInferTensorOrder segmentationOutputOrder;
 
    int inputFromPreprocessedTensor;
 
    int disableOutputHostCopy;
 
    int autoIncMem;
 
    double maxGPUMemPer;
 
    int dumpIpTensor;
    int dumpOpTensor;
    int overwriteIpTensor;
    char ipTensorFilePath[_PATH_MAX];
    int overwriteOpTensor;
    char ** opTensorFilePath;
 
} NvDsInferContextInitParams;
 
typedef void (* NvDsInferContextReturnInputAsyncFunc) (void *data);
 
typedef struct
{
    void** inputFrames;
    unsigned int numInputFrames;
    NvDsInferFormat inputFormat;
    unsigned int inputPitch;
    NvDsInferContextReturnInputAsyncFunc returnInputFunc;
    void *returnFuncData;
} NvDsInferContextBatchInput;
 
typedef struct
{
    NvDsInferLayerInfo *tensors;
    unsigned int numInputTensors;
    NvDsInferContextReturnInputAsyncFunc returnInputFunc;
    void *returnFuncData;
} NvDsInferContextBatchPreprocessedInput;
 
typedef struct
{
    float left;
    float top;
    float width;
    float height;
    int classIndex;
    char *label;
    /* confidence score of the detected object. */
    float confidence;
    /* Instance mask information for the object. */
    float *mask;
    unsigned int mask_width;
    unsigned int mask_height;
    unsigned int mask_size;
} NvDsInferObject;
 
typedef struct
{
    NvDsInferObject *objects;
    unsigned int numObjects;
} NvDsInferDetectionOutput;
 
typedef struct
{
    NvDsInferAttribute *attributes;
    unsigned int numAttributes;
    char *label;
} NvDsInferClassificationOutput;
 
typedef struct
{
    unsigned int width;
    unsigned int height;
    unsigned int classes;
    int *class_map;
    float *class_probability_map;
} NvDsInferSegmentationOutput;
 
typedef struct
{
    NvDsInferNetworkType outputType;
    union
    {
        NvDsInferDetectionOutput detectionOutput;
        NvDsInferClassificationOutput classificationOutput;
        NvDsInferSegmentationOutput segmentationOutput;
    };
} NvDsInferFrameOutput;
 
typedef struct
{
    NvDsInferFrameOutput *frames;
    unsigned int numFrames;
 
    void **outputDeviceBuffers;
    unsigned int numOutputDeviceBuffers;
 
    void **hostBuffers;
    unsigned int numHostBuffers;
 
    void* priv;
} NvDsInferContextBatchOutput;
 
typedef struct INvDsInferContext * NvDsInferContextHandle;
 
typedef void (*NvDsInferContextLoggingFunc)(NvDsInferContextHandle handle,
    unsigned int uniqueID, NvDsInferLogLevel logLevel, const char* logMessage,
    void* userCtx);
 
#ifdef __cplusplus
extern "C" {
#endif
 
void NvDsInferContext_ResetInitParams (NvDsInferContextInitParams *initParams);
 
_DS_DEPRECATED_("NvDsInferContext_GetStatusName is deprecated. Use NvDsInferStatus2Str instead")
const char * NvDsInferContext_GetStatusName (NvDsInferStatus status);
 
 
#ifdef __cplusplus
}
#endif
 
#ifdef __cplusplus
 
#include <string>
#include <vector>
 
struct INvDsInferContext
{
public:
    virtual NvDsInferStatus queueInputBatch(NvDsInferContextBatchInput &batchInput) = 0;
 
    virtual NvDsInferStatus dequeueOutputBatch(NvDsInferContextBatchOutput &batchOutput) = 0;
 
    virtual void releaseBatchOutput(NvDsInferContextBatchOutput &batchOutput) = 0;
 
    virtual void fillLayersInfo(std::vector<NvDsInferLayerInfo> &layersInfo) = 0;
 
    virtual void getNetworkInfo(NvDsInferNetworkInfo &networkInfo) = 0;
 
    virtual const std::vector< std::vector<std::string> >& getLabels() = 0;
 
    virtual void destroy() = 0;
 
    virtual ~INvDsInferContext() {}
 
    virtual NvDsInferStatus queueInputBatchPreprocessed(NvDsInferContextBatchPreprocessedInput &batchInput) = 0;
};
 
NvDsInferStatus createNvDsInferContext(NvDsInferContextHandle *handle,
        NvDsInferContextInitParams &initParams,
        void *userCtx = nullptr,
        NvDsInferContextLoggingFunc logFunc = nullptr);
 
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
 
NvDsInferStatus NvDsInferContext_Create(NvDsInferContextHandle *handle,
        NvDsInferContextInitParams *initParams, void *userCtx,
        NvDsInferContextLoggingFunc logFunc);
 
void NvDsInferContext_Destroy (NvDsInferContextHandle handle);
 
NvDsInferStatus NvDsInferContext_QueueInputBatch(NvDsInferContextHandle handle,
        NvDsInferContextBatchInput *batchInput);
 
NvDsInferStatus NvDsInferContext_DequeueOutputBatch(NvDsInferContextHandle handle,
        NvDsInferContextBatchOutput *batchOutput);
 
void NvDsInferContext_ReleaseBatchOutput(NvDsInferContextHandle handle,
        NvDsInferContextBatchOutput *batchOutput);
 
void NvDsInferContext_GetNetworkInfo(NvDsInferContextHandle handle,
        NvDsInferNetworkInfo *networkInfo);
 
unsigned int NvDsInferContext_GetNumLayersInfo(NvDsInferContextHandle handle);
 
void NvDsInferContext_FillLayersInfo(NvDsInferContextHandle handle,
        NvDsInferLayerInfo *layersInfo);
 
const char* NvDsInferContext_GetLabel(NvDsInferContextHandle handle,
        unsigned int id, unsigned int value);
 
#ifdef __cplusplus
}
#endif
 
#endif