#include "STFaceCache.h"
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#include <MaterialBuffer.h>
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#include <logger.h>
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#include <map>
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#include <sys/types.h>
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#include <dirent.h>
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#include "sample_face_search.h"
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#include <cv_face.h>
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#define FDP_FDR_INVALID FDP_FaceDetectResult(0, 0)
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#define ENABLE_AUTO_CREATE_STFACEDB
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#define ENABLE_SEARCH_IN_NEGATIVE_DBID
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#define ENABLE_SEARCH_IN_NEGATIVE_DBID
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#define RESULT_CONFIDENCE 0.70
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struct STFaceCacheContext
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{
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cv_handle_t handle_verify;
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cv_handle_t handle_detect;
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STFaceCacheContext() : handle_verify(nullptr), handle_detect(nullptr)
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{
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}
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};
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struct STFaceDBContext
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{
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int dbid;
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std::string dbfname;
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std::string dbfpath;
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stface_handles handles;
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bool dbLoadOK;
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STFaceDBContext() : dbid(0), dbfname(), dbfpath(), handles(), dbLoadOK(false)
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{}
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bool init_db(const STFaceCacheContext& ctx)
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{
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handles.handle_verify = ctx.handle_verify;
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handles.handle_detect = ctx.handle_detect;
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if (handles.handle_db == nullptr)
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{
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dbLoadOK = stface_db_load(handles, db_full_path().c_str());
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dbLoadOK &= (handles.handle_db != nullptr);
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}
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else
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{
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dbLoadOK = true;
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}
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return dbLoadOK;
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}
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void close_db()
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{
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stface_db_save(handles, db_full_path().c_str());
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handles.handle_verify = nullptr;
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handles.handle_detect = nullptr;
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cv_verify_destroy_db(handles.handle_db);
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handles.handle_db = nullptr;
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dbLoadOK = false;
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}
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std::string db_full_path() const
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{
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if (dbfpath.empty() || dbfname.empty())
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return "";
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std::string fn(dbfpath);
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fn.append("/");
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fn.append(dbfname);
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return fn;
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}
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};
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typedef std::map<int, STFaceDBContext> stface_ctx_map_t; // <dbid, ctx>
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STFaceCache::STFaceCache(const std::string& _stfacedbPath)
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: stfacedbPath(_stfacedbPath), stfaceModels(STFACESDK_BASE "/models"),
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_dbContext(new stface_ctx_map_t), _cacheContext(new STFaceCacheContext)
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{
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LOG_INFO << "st face db: " << stfacedbPath << LOG_ENDL;
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LOG_INFO << "st face sdk models: " << stfaceModels << LOG_ENDL;
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}
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STFaceCache::~STFaceCache()
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{
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delete (stface_ctx_map_t*)_dbContext;
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_dbContext = nullptr;
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delete (STFaceCacheContext*)_cacheContext;
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_cacheContext = nullptr;
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}
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bool STFaceCache::init()
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{
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STFaceCacheContext& cacheContext(*(STFaceCacheContext*)_cacheContext);
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if (stface_init_license("./license.lic") != 0)
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{
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LOG_ERROR << "stface_init_license failed" << LOG_ENDL;
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return false;
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}
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cv_face_algorithm_info();
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cv_result_t cv_result = cv_face_create_detector(&cacheContext.handle_detect, nullptr, CV_DETECT_ENABLE_ALIGN_21);
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if (cv_result != CV_OK)
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{
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LOGP(ERROR, "create detect handle failed, error code %d", cv_result);
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return false;
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}
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std::string modelsFile(stfaceModels);
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modelsFile.append("/verify.model");
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cv_result = cv_verify_create_handle(&cacheContext.handle_verify, modelsFile.c_str());
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if (cv_result != CV_OK)
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{
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LOGP(ERROR, "create verify handle failed, error code %d\n", cv_result);
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return false;
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}
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return true;
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}
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void STFaceCache::finit()
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{
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STFaceCacheContext& cacheContext(*(STFaceCacheContext*)_cacheContext);
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cv_face_destroy_detector(cacheContext.handle_detect);
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cv_verify_destroy_handle(cacheContext.handle_verify);
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cacheContext.handle_detect = nullptr;
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cacheContext.handle_verify = nullptr;
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}
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bool STFaceCache::load_dbs()
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{
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stface_ctx_map_t& dbContext(*(stface_ctx_map_t*)_dbContext);
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STFaceCacheContext& cacheContext(*(STFaceCacheContext*)_cacheContext);
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DIR* dp = opendir(stfacedbPath.c_str());
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if (dp != NULL)
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{
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struct dirent* ep;
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while(ep = readdir(dp))
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{
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//puts(ep->d_name);
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STFaceDBContext ctx;
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ctx.dbfname = ep->d_name;
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ctx.dbfpath = stfacedbPath;
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ctx.dbid = strtol(ctx.dbfname.c_str(), nullptr, 10);
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if (ctx.dbfname.find(".stfacedb") == std::string::npos)
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continue;
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if (ctx.dbid == 0)
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continue;
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dbContext.insert(std::make_pair(ctx.dbid, ctx));
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}
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closedir(dp);
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}
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else
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{
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LOG_ERROR << "Couldn't open the directory." << LOG_ENDL;
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return false;
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}
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for (stface_ctx_map_t::iterator iterCtx = dbContext.begin(); iterCtx != dbContext.end(); ++iterCtx)
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{
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STFaceDBContext& ctx(iterCtx->second);
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bool ret = ctx.init_db(cacheContext);
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LOG_INFO << "init stface db dbid=" << ctx.dbid << ", ret=" << ret << LOG_ENDL;
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}
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return true;
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}
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void STFaceCache::close_dbs()
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{
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stface_ctx_map_t& dbContext(*(stface_ctx_map_t*)_dbContext);
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for (stface_ctx_map_t::iterator iterCtx = dbContext.begin(); iterCtx != dbContext.end(); ++iterCtx)
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{
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STFaceDBContext& ctx(iterCtx->second);
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ctx.close_db();
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}
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}
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FDP_FaceDetectResult STFaceCache::detect_neg(const STFaceImage& img)
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{
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if (img.db_id <= 0)
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{
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return FDP_FDR_INVALID;
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}
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#ifdef ENABLE_SEARCH_IN_NEGATIVE_DBID
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STFaceImage imgNeg(img);
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imgNeg.db_id = -1;
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return detect(imgNeg);
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#else
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return FDP_FDR_INVALID;
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#endif
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}
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FDP_FaceDetectResult STFaceCache::detect(const STFaceImage& img)
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{
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stface_ctx_map_t& dbContext(*(stface_ctx_map_t*)_dbContext);
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LOG_WARN << "detect in dbid=" << img.db_id << LOG_ENDL;
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if (img.db_id == 0)
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{
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// search all db
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//#todo
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}
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else
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{
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stface_ctx_map_t::iterator iterCtx = dbContext.find(img.db_id);
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if (iterCtx == dbContext.end())
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{
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LOG_WARN << "no db find dbid=" << img.db_id << LOG_ENDL;
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return detect_neg(img);
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}
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STFaceDBContext& ctx(iterCtx->second);
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if (!ctx.dbLoadOK)
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{
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LOG_WARN << "dbLoadOK return false" << LOG_ENDL;
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return detect_neg(img);
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}
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top_idx_score_vect_t result;
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if (!stface_search_db(ctx.handles, img, result))
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{
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LOG_WARN << "stface_search_db return false" << LOG_ENDL;
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return detect_neg(img);
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}
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if (result.empty())
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{
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LOG_INFO << "stface_search_db return empty" << LOG_ENDL;
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return detect_neg(img);
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}
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LOGP(INFO, "stface_search_db return dbid=%d, idx=%d, score=%f", img.db_id, result[0].idx, result[0].score);
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if (result[0].score < RESULT_CONFIDENCE)
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{
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LOGP(INFO, "low score not accepted");
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return detect_neg(img);
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}
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return FDP_FaceDetectResult(img.db_id, result[0].idx);
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}
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return FDP_FDR_INVALID;
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}
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FDP_FaceDetectResult STFaceCache::add(const STFaceImage& img)
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{
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stface_ctx_map_t& dbContext(*(stface_ctx_map_t*)_dbContext);
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STFaceCacheContext& cacheContext(*(STFaceCacheContext*)_cacheContext);
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LOG_WARN << "add in dbid=" << img.db_id << LOG_ENDL;
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if (img.db_id == 0)
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{
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LOG_WARN << "db_id=0 not ok" << LOG_ENDL;
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return FDP_FDR_INVALID;
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}
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stface_ctx_map_t::iterator iterCtx = dbContext.find(img.db_id);
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#ifdef ENABLE_AUTO_CREATE_STFACEDB
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if (iterCtx == dbContext.end())
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{
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// create db
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STFaceDBContext ctx;
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char dbfname[50];
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sprintf(dbfname, "%d.stfacedb", img.db_id);
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ctx.dbfname = dbfname;
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ctx.dbfpath = stfacedbPath;
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ctx.dbid = img.db_id;
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ctx.init_db(cacheContext); // copy handlers
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if (!stface_db_create(ctx.handles, ctx.db_full_path().c_str()))
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{
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LOG_WARN << "stface_db_create return false" << LOG_ENDL;
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return FDP_FDR_INVALID;
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}
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ctx.dbLoadOK = true;
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dbContext.insert(std::make_pair(ctx.dbid, ctx));
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iterCtx = dbContext.find(img.db_id);
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}
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#endif
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if (iterCtx == dbContext.end())
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{
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LOG_ERROR << "no stfacedb found" << LOG_ENDL;
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return FDP_FDR_INVALID;
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}
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STFaceDBContext& ctx(iterCtx->second);
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if (!ctx.dbLoadOK)
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{
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LOG_WARN << "dbLoadOK return false" << LOG_ENDL;
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return FDP_FDR_INVALID;
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}
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int idx = stface_db_add(ctx.handles, img);
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LOG_INFO << "stface_db_add dbid=" << img.db_id << ", idx=" << idx << LOG_ENDL;
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if (idx <= 1)
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return FDP_FDR_INVALID;
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else
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return FDP_FaceDetectResult(img.db_id, idx);
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}
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