#ifndef __LIVENESS_IR_MNN_H
#define __LIVENESS_IR_MNN_H

#include <opencv2/opencv.hpp>
#include <Inc/CenterFaceMnn.h>

//enum error {
//	DEEPCAM_UNKNOWN_ERROR = -2,   // UNKNOWN ERROR
//	DEEPCAM_IMAGE_INVALID = -1,
//	DEEPCAM_NO_ERROR = 0,    // NO ERROR
//};


class LivenessIRMnn
{
public:
	static LivenessIRMnn* GetInstance();
	int LivenessDetect(const cv::Mat& img, FaceInfo& face_info, float& score, bool motionFilter, int uniteFrames = 5);
	int LivenessDetect(const cv::Mat& img, int face_x1, int face_y1, int face_x2, int face_y2, const float* landmark, float& score, bool motionFilter, int uniteFrames = 5);

private:
	LivenessIRMnn();
	~LivenessIRMnn();

	cv::Mat GetFace(const cv::Mat &src, const float* landmark);

	cv::Mat FaceAlign(const cv::Mat& frame, const float* landmark, float face_rate = 1.25f);

	float IOU(float face0_x0, float face0_y0, float face0_x1, float face0_y1,
		float face1_x0, float face1_y0, float face1_x1, float face1_y1);

	int GetLightBlurScore(const cv::Mat& face, float& light, float& blur);

	int GetLivenessScore(const cv::Mat& face_img, float& score);

	long long get_cur_time();
private:
	static LivenessIRMnn* m_instance;
	std::mutex m_mt;
	std::shared_ptr<MNN::Interpreter> m_ir_liveness;
	MNN::Session* m_sess_liveness = nullptr;
	MNN::CV::ImageProcess::Config m_img_config;
	MNN::Tensor* m_input_tensor;
	MNN::Tensor* m_score_tensor;

};

#endif