thumbnail_mime_type property
read / write
MIME type of the video thumbnail. If non-empty, must be one of "image/jpeg", "image/gif" and "video/mp4".
Implementation
late String thumbnail_mime_type;MIME type of the video thumbnail. If non-empty, must be one of "image/jpeg", "image/gif" and "video/mp4".
late String thumbnail_mime_type;