HarmonyOS 鸿蒙Next自定义相机拍照问题

因为是全屏的相机拍摄，

所以放大了1.3倍，

this.mXComponentController.setXComponentSurfaceRect({offsetX:0,offsetY:0, surfaceWidth: DisplayUtils.getScreenWH()[0]*1.3, surfaceHeight: DisplayUtils.getScreenWH()[0]1.31920/1080 });

然后前置摄像头拍摄出来的画面是非镜像的，我设置了这个 mirror

let photoCaptureSetting: camera.PhotoCaptureSetting = {
  quality: camera.QualityLevel.QUALITY_LEVEL_HIGH, // 设置图片质量高
  rotation: camera.ImageRotation.ROTATION_0, // 设置图片旋转角度0
  mirror: this.cameraManager.photoOutput?.isMirrorSupported() ? true : false // 镜像
}
await this.cameraManager.photoOutput?.capture(photoCaptureSetting).catch((error: BusinessError) => {
  console.log(‘拍照失败’, JSON.stringify(error));
  return
});

photoOutput.on(‘photoAvailable’, (errCode: BusinessError, photo: camera.Photo): void => {
  console.info(CameraDemo getPhoto start. err: ${JSON.stringify(errCode)});
  if (errCode || photo === undefined || photo.main === undefined) {
    console.error(‘CameraDemo getPhoto failed’);
    return;
  }
  let imageObj = photo.main;
  imageObj.getComponent(image.ComponentType.JPEG, async (errCode: BusinessError, component: image.Component): Promise<void> => {
    console.info(‘CameraDemo getComponent start’, JSON.stringify(errCode), JSON.stringify(component));
    if (errCode || component === undefined) {
      console.error(‘CameraDemo getComponent failed’);
      return;
    }
    let buffer: ArrayBuffer;
    if (component.byteBuffer) {
      buffer = component.byteBuffer;
      this.buffer = buffer;
      let sourceOptions: image.SourceOptions = {
        sourceDensity: 0, // 在不确定当前密度时传0
        sourcePixelFormat: image.PixelMapFormat.RGBA_8888,
        sourceSize: this.imageSize
      }
      let imageSource: image.ImageSource = image.createImageSource(buffer, sourceOptions);
      let opts: image.InitializationOptions = {
        editable: false,
        pixelFormat: image.PixelMapFormat.RGBA_8888,
        size: this.imageSize
      }
      let pixelMap = await imageSource.createPixelMap(opts);
      this.finalPixelMap = pixelMap;
    } else {
      console.error(‘CameraDemo byteBuffer is null’);
      return;
    }
  });

获取到的照片位置略有不同，可能是我放大1.3倍导致的不同？有啥解决办法