tt.getAlgorithmManager

tt.getAlgorithmManager(options);

Page({
  data: {},
  onLoad: function () {
    this.cameraContext = tt.createCameraContext();
  },
  initCanvasConfig() {
    this.cameraContext = tt.createCameraContext();
    this.cameraListener = this.cameraContext.onCameraFrame((frame) => {
      this.frameWidth = frame.width;
      this.frameHeight = frame.height;
      this.canvas.requestAnimationFrame(() => {
        this.onFrame(frame);
      });
    });
    this.cameraListener.start();
  },
  init() {
    this.frameWidth = 480;
    this.frameHeight = 640;

    if (this.algorithmModule == null) {
      this.algorithmModule = require("./AlgorithmModule");
      this.algorithmModule.initAlgorithm(
        this.frameWidth,
        this.frameHeight,
        this.showAlgorithmResult
      );
    }

    this.cameraContext = tt.createCameraContext();
    this.cameraListener = this.cameraContext.onCameraFrame((frame) => {
      this.onFrame(frame);
    });
    this.cameraListener.start();
  },
  onFrame(cameraFrame) {
    if (this.algorithmModule != null) {
      this.algorithmModule.onFrame(cameraFrame.data);
    }
  },
  showAlgorithmResult(algorithmResult) {
    console.log(
      "[debug] showAlgorithmResult :: algorithmResult = ",
      algorithmResult
    );
  },
  onError(e) {
    tt.showModal({
      content: "相机出错了：" + e.detail.errMsg,
    });
  },
});

let algorithmManager = null;
let width,
  height = null;
let cb = null;
export function initAlgorithm(_width, _height, onResultFallback) {
  cb = onResultFallback;
  width = _width;
  height = _height;
  tt.getAlgorithmManager({
    width: _width,
    height: _height,
    useSyncMode: true,
    requirements: ["face106"],
    success: (algMgr) => {
      console.log("get algorithm Manager ~");
      console.log(algMgr);
      algorithmManager = algMgr.algorithmManager;
    },
    fail: (errMsg) => {
      console.log(errMsg);
    },
    complete: () => {
      console.log("get alg mgr complete");
    },
  });
}

export function onFrame(cameraData) {
  if (algorithmManager != null) {
    algorithmManager.doExecute({
      input: cameraData,
      width: width,
      height: height,
      timeStamp: Date.now() / 1e9,
      success: (algMgr) => {
        cb(algMgr);
      },
      fail: (errMsg) => {
        console.log(errMsg);
      },
    });
  }
}