HarmonyOS 鸿蒙Next 从相册选择视频，获取视频的宽高数据有误

HarmonyOS 鸿蒙Next 从相册选择视频，获取视频的宽高数据有误
 
我从相册选择视频，之后通过uri获取这个视频的基本信息，如宽高信息，从网络保存的视频获取视频宽高没有问题，通过手机相机拍摄的视频，宽高值是反的，获取视频信息的代码如下

async getPhotoAsset(uri: string) {
//async getPhotoAsset(uri: string): Promise<photoAccessHelper.PhotoAsset | null> {
try {
let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(getContext());
let predicates: dataSharePredicates.DataSharePredicates = new dataSharePredicates.DataSharePredicates();
// 配置查询条件，使用PhotoViewPicker选择图片返回的uri进行查询
predicates.equalTo('uri', uri);
let fetchOption: photoAccessHelper.FetchOptions = {
// 成员参数名称，在get时，除了'uri'、'media_type'、'subtype'和'display_name'四个属性之外，其他的属性都需要在fetchColumns中填入需要get的PhotoKeys
// fetchColumns: ['media_type', 'display_name', 'size', 'title', 'width', 'height', 'date_taken',
// 'uri', 'duration', 'orientation', 'date_added', 'date_modified', 'is_favorite'],
fetchColumns: [photoAccessHelper.PhotoKeys.WIDTH, photoAccessHelper.PhotoKeys.HEIGHT, photoAccessHelper.PhotoKeys.TITLE, photoAccessHelper.PhotoKeys.DURATION,photoAccessHelper.PhotoKeys.ORIENTATION],
predicates: predicates
};
let fetchResult: photoAccessHelper.FetchResult<photoAccessHelper.PhotoAsset> =
await phAccessHelper.getAssets(fetchOption);
// 得到uri对应的PhotoAsset对象，读取文件的部分信息
if (fetchResult !== undefined) {
const photoAsset: photoAccessHelper.PhotoAsset = await fetchResult.getFirstObject();
if (photoAsset !== undefined) {
let w = photoAsset.get(photoAccessHelper.PhotoKeys.WIDTH);
let h = photoAsset.get(photoAccessHelper.PhotoKeys.HEIGHT);
let orientation = photoAsset.get('orientation');
let pixelMap: image.PixelMap = await photoAsset.getThumbnail();
let imageInfo: image.ImageInfo = await pixelMap.getImageInfo();
console.info('getThumbnail successful, pixelMap ImageInfo size: ' + JSON.stringify(imageInfo.size));
router.pushUrl({ url: DDPagesPath.VideoCreate_Page,params: { width:w,height:h,uri:uri,orientation:orientation } })
//return photoAsset;
}
}
//return null;
} catch (err) {
let error = err as BusinessError;
LogUtil.error(`PhotoHelper-getPhotoAsset-异常 ~ code: ${error.code} -·- message: ${error.message}`);
//return null;
}
}