From a7ae929039ae0b0b9ee729619b670e014700fc2d Mon Sep 17 00:00:00 2001
From: houxiao <houxiao@454eff88-639b-444f-9e54-f578c98de674>
Date: 星期五, 21 四月 2017 17:46:02 +0800
Subject: [PATCH] dev

---
 FaceServer/sample_face_search.cpp |  145 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 142 insertions(+), 3 deletions(-)

diff --git a/FaceServer/sample_face_search.cpp b/FaceServer/sample_face_search.cpp
index 6876364..8889cac 100644
--- a/FaceServer/sample_face_search.cpp
+++ b/FaceServer/sample_face_search.cpp
@@ -1,4 +1,5 @@
 #include "sample_face_search.h"
+#include <MaterialBuffer.h>
 #include "STFaceCache.h"
 #include <logger.h>
 
@@ -7,6 +8,11 @@
 #include <cv_face.h>
 
 #include <opencv2/opencv.hpp>
+#include <libyuv/convert.h>
+#define SUBSAMPLE(v, a) ((((v) + (a) - 1)) / (a))
+
+#define MAX_FACE_IMAGE_WIDTH 640
+#define MAX_FACE_IMAGE_HEIGHT 480
 
 using namespace std;
 using namespace cv;
@@ -46,7 +52,66 @@
 	return p_feature;
 }
 
-cv_feature_t *stface_extract_feature(stface_handles& handles, const STFaceImage& image);//#todo
+cv_feature_t *stface_extract_feature(stface_handles& handles, const STFaceImage& image)
+{
+	cv_pixel_format stimgfmt = CV_PIX_FMT_GRAY8;
+	
+	if (image.width > MAX_FACE_IMAGE_WIDTH || image.height > MAX_FACE_IMAGE_HEIGHT)
+	{
+		LOG_WARN << "image too big" << LOG_ENDL;
+		return nullptr;
+	}
+	
+	uint8_t imgbuf[MAX_FACE_IMAGE_WIDTH * MAX_FACE_IMAGE_HEIGHT * 4];
+	size_t imgbufSize = 0;
+	if (image.mb_type == MB_Frame::MBFT_RGB565)
+	{
+		uint8* dst_y = (uint8*)(imgbuf);
+        uint8* dst_u = (uint8*)(dst_y + (image.height * image.width));
+        uint8* dst_v = (uint8*)(dst_u + (image.height * image.width / 4));
+		
+		int ret = libyuv::RGB565ToI420(
+			image.buff, image.width, 
+			dst_y, image.width, 
+			dst_u, SUBSAMPLE(image.width, 2), 
+			dst_v, SUBSAMPLE(image.width, 2), 
+			image.width, image.height
+		);
+		imgbufSize = image.height * image.width * 1.5;
+	}
+	else
+	{
+		LOG_WARN << "mb frame type not support" << LOG_ENDL;
+		return nullptr;
+	}
+	
+	Mat matImg(cv::Size(image.width, image.height), CV_8UC1, imgbuf);
+	if (!matImg.data)
+	{
+		return nullptr;
+	}
+	
+	cv_feature_t *p_feature = nullptr;
+	cv_face_t *p_face = nullptr;
+	int face_count = 0;
+	cv_result_t st_result = CV_OK;
+	st_result = cv_face_detect(handles.handle_detect, matImg.data, stimgfmt, matImg.cols, matImg.rows, matImg.step, CV_FACE_UP, &p_face, &face_count);
+	if (face_count >= 1)
+	{
+		st_result = cv_verify_get_feature(handles.handle_verify, (unsigned char *)matImg.data, stimgfmt, matImg.cols, matImg.rows, matImg.step, p_face, &p_feature, nullptr);
+		if (st_result != CV_OK)
+		{
+			LOGP(DEBUG, "cv_verify_get_feature failed, error code %d\n", st_result);
+		}
+	}
+	else
+	{
+		LOGP(DEBUG, "can't find face in");
+	}
+	// release the memory of face
+	cv_face_release_detector_result(p_face, face_count);
+	return p_feature;
+}
 
 int stface_db_add(stface_handles& handles, const char *image_path) {
 	cv_feature_t *p_feature = stface_extract_feature(handles, image_path);
@@ -62,7 +127,22 @@
 	return idx;
 }
 
-int stface_db_add(stface_handles& handles, const STFaceImage& image);//#todo
+int stface_db_add(stface_handles& handles, const STFaceImage& image)
+{
+	cv_feature_t *p_feature = stface_extract_feature(handles, image);
+	if (!p_feature)
+	{
+		return -1;
+	}
+	int idx;
+	cv_result_t cv_result = cv_verify_add_face(handles.handle_db, p_feature, &idx);
+	if (cv_result != CV_OK)
+	{
+		LOGP(DEBUG, "cv_verify_add_face failed, error code %d\n", cv_result);
+	}
+	cv_verify_release_feature(p_feature);
+	return idx;
+}
 
 bool stface_db_del(stface_handles& handles, int idx) {
 	if (idx < 0) {
@@ -104,6 +184,25 @@
 		LOGP(DEBUG, "load done!\n");
 	}
 
+	return true;
+}
+
+bool stface_db_create(stface_handles& handles, const char *db_path)
+{
+	cv_result_t cv_result = cv_verify_create_db(&handles.handle_db);
+	if (cv_result != CV_OK)
+	{
+		LOG_WARN << "cv_verify_create_db return false" << LOG_ENDL;
+		return false;
+	}
+		
+	cv_result = cv_verify_save_db(handles.handle_db, db_path);
+	if (cv_result != CV_OK)
+	{
+		LOG_WARN << "cv_verify_save_db return false" << LOG_ENDL;
+		return false;
+	}
+	
 	return true;
 }
 
@@ -193,7 +292,47 @@
 	return true;
 }
 
-bool stface_search_db(stface_handles& handles, const STFaceImage& image, top_idx_score_vect_t& result);//#todo
+bool stface_search_db(stface_handles& handles, const STFaceImage& image, top_idx_score_vect_t& result)
+{
+	cv_feature_t *p_feature = stface_extract_feature(handles, image);
+	if (p_feature == nullptr)
+	{
+		LOGP(DEBUG, "extract failed !\n");
+		return false;
+	}
+
+	int top_k = 10;
+	int *top_idxs = new int[top_k];
+	float *top_scores = new float[top_k];
+	unsigned int result_length = 0;
+	cv_result_t cv_result = cv_verify_search_face(handles.handle_verify, handles.handle_db, p_feature, top_k, top_idxs, top_scores, &result_length);
+	if (cv_result == CV_OK)
+	{
+		for (unsigned int t = 0; t < result_length; t++)
+		{
+			// const cv_feature_t item = result[t].item;
+			LOGP(DEBUG, "%d\t", top_idxs[t]);
+			LOGP(DEBUG, "%0.2f\n", top_scores[t]);
+			
+			result.push_back(TopIdxScore(top_idxs[t],  top_scores[t]));
+		}
+	}
+	else
+	{
+		LOGP(DEBUG, "cv_verify_search_face failed, error code %d\n", cv_result);
+	}
+	if (top_idxs)
+	{
+		delete[] top_idxs;
+	}
+	if (top_scores)
+	{
+		delete[] top_scores;
+	}
+	cv_verify_release_feature(p_feature);
+
+	return true;
+}
 
 bool stface_search_list(stface_handles& handles, char *image_path, char *list_path) {
 	cv_feature_t *p_feature = stface_extract_feature(handles, image_path);

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