Method and apparatus for applying of a watermark to a video during download

摘要

A method and apparatus for applying of a watermark to a video using a computer coupled to a network. Unreferenced frames in the video are identified. The video is parsed into paired sequential segments each having a long-compressed segment usually about 2 minutes long and a short-uncompressed segment usually about 2-10 seconds long and having at least one of the unreferenced frames. When the computer accepts a request to download the video, it generates a watermark comprising a randomly-generated alphanumeric string that is associated with the request. The computer then makes a watermarked-short-uncompressed segment for each paired sequential segment by insertion of the watermark into the unreferenced frame in such segment and then compresses it to create a watermarked-short-compressed segment corresponding to each long-compressed segment. In response to the request for the video, the computer then sends each long-compressed segment seamlessly appended by its corresponding watermarked-short-compressed segment.