在调用wx.faceDetect接口的时候发现在一些手机上的返回值是正常的，但是用iphone12 pro max测试的时候就有问题，返回值不全了

screen2base64: function (frame) {
    if (!this.data.scan_switch) {
      // 扫描开关关闭了
      return;
    }
    // console.log("screen2base64");
    var that = this
    skip = skip + 1;
    if (skip % 20 == 1) {
      wx.faceDetect({
        width: frame.width,
        height: frame.height,
        frameBuffer: frame.data,
        enableConf: true,
        enablePoint: true,
        success(res) {
          console.log("faceDetect Res->",res)
          console.log("pointArray 内容如下",res.pointArray)
          console.log("第86个点的数据如下：",res.pointArray[86])
          var centerX = ((res.pointArray[84].x + res.pointArray[90].x) / 2) * (that.data.width / frame.width)
          var centerY = ((res.pointArray[93].y + res.pointArray[87].y) / 2) * (that.data.height / frame.height)
          that.setData({
            centerX: centerX,
            centerY: centerY,
          })


          // console.log("识别度",res.confArray.mouth)
          // console.log(that.data.zoneX1,"+",centerX,"+",that.data.zoneX2)
          // console.log(that.data.zoneY1,"+",centerY,"+",that.data.zoneY2)
          if (res.confArray.mouth > 0.80 && centerX < that.data.zoneX2 && centerX > that.data.zoneX1 && centerY < that.data.zoneY2 && centerY > that.data.zoneY1) {
            count++;
            NoMouth = 8;
            if (count >= 3) {
              that.closeScan()
              //检测完成，但是要播放完动画
              clearInterval(mouth)
              console.log("stop了", that.data.a)
              mouth = setInterval(() => {
                if (that.data.a > 45) {
                  clearInterval(mouth)
                  setTimeout(function () {
                    wx.redirectTo({
                      url: '../AVideo/AVideo',
                    })
                  }, 500)
                } else {
                  that.setData({
                    a: that.data.a + 1
                  })
                }
              }, 2000 / 45)



            }
          } else {
            NoMouth = NoMouth - 1
            console.log("nomout", NoMouth)
            if (NoMouth == 0) {
              wx.showToast({
                icon: 'none',
                title: '微笑识别不成功，记得对准唇部框哦',
                duration: 2000
              })
              NoMouth = 7;
            }
          }
          // console.log("count->", count)
        },
        fail(err) {
          console.log('失败', err)
          NoMouth = NoMouth - 1
          console.log("nomout", NoMouth)
          if (NoMouth == 0) {
            wx.showToast({
              icon: 'none',
              title: '微笑识别不成功，记得对准唇部框哦',
              duration: 2000
            })
            NoMouth = 7;
          }
        }
      })
    }
    // 开始制作base64
    that.setData({
      create_ready_status: false
    })
  },