VideoFileServiceImpl#getVideoInfo 方法可以返回 null

oss-store/src/main/java/cn/reghao/oss/store/rpc/media/VideoFileServiceImpl.java

@@ -39,7 +39,7 @@ public class VideoFileServiceImpl implements VideoFileService {
     @Override
     public VideoInfo getVideoInfo(String videoFileId) {
         List<VideoInfo> list = videoRepository.getVideoInfos(videoFileId);
-        return list.get(0);
+        return list.isEmpty() ? null : list.get(0);
     }
 
     public List<VideoFile> getVideoFiles(String videoFileId) {