Why Are the source_path and output_path Parameters Empty in the Return Result When the API for Querying Details About a Specified Media File Is Called?

If the queried media files are pulled through a URL or hosted by OBS to VOD, the media file storage information such as the original bucket path or URL is returned. If the queried media files are uploaded locally, the media files are stored in the VOD bucket. By default, the media file storage information is not returned. That is, the source_path and output_path parameters are left empty.