nvmedia_ldc_util.h

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/*
 * Copyright (c) 2021-2022, 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 NVMEDIA_LDC_UTIL_H
#define NVMEDIA_LDC_UTIL_H
 
#include "nvmedia_core.h"
#include "nvmedia_ldc.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum
{
    NVMEDIA_LDC_LENS_MODEL_POLYNOMIAL_DISTORTION,
 
    NVMEDIA_LDC_LENS_MODEL_FISHEYE_EQUIDISTANT,
 
    NVMEDIA_LDC_LENS_MODEL_FISHEYE_EQUISOLID,
 
    NVMEDIA_LDC_LENS_MODEL_FISHEYE_ORTHOGRAPHIC,
 
    NVMEDIA_LDC_LENS_MODEL_FISHEYE_STEREOGRAPHIC
} NvMediaLdcLensModel;
 
typedef struct
{
    float matrixCoeffs[2][3];
} NvMediaLdcCameraIntrinsic;
 
typedef struct
{
    float R[3][3];
    float T[3];
} NvMediaLdcCameraExtrinsic;
 
typedef struct
{
    NvMediaLdcLensModel model;
 
    float k1;
    float k2;
    float k3;
    float k4;
    float k5;
    float k6;
    float p1;
    float p2;
} NvMediaLdcLensDistortion;
 
NvMediaStatus
NvMediaLdcGetNumControlPoints(NvMediaLdcRegionParameters const *const regionParams,
                              uint32_t *numControlPoints);
 
NvMediaStatus
NvMediaLdcGenWarpMapIdentity(NvMediaRect const *const dstRect,
                             NvMediaLdcRegionParameters const *const regionParams,
                             uint32_t numControlPoints,
                             NvMediaLdcControlPoint *const controlPoints);
 
NvMediaStatus
NvMediaLdcGenWarpMap(
    NvMediaLdcCameraIntrinsic const *const Kin,
    NvMediaLdcCameraExtrinsic const *const X,
    NvMediaLdcCameraIntrinsic const *const Kout,
    NvMediaLdcLensDistortion const *const distModel,
    NvMediaRect const *const dstRect,
    NvMediaLdcRegionParameters const *const regionParams,
    uint32_t numControlPoints,
    NvMediaLdcControlPoint *const controlPoints);
 
#ifdef __cplusplus
}
#endif
 
#endif