Video program broadcasting apparatus, method, and program which steganographically embeds use information

摘要

A video program broadcasting apparatus includes a program table storage unit and a program-URL matching table storage unit. The URL of a video program which is being broadcasted at the present is acquired by a URL generation unit with respect to a plurality of video programs which are sequentially broadcasted depending on the time schedule of a video program table. The URL of the video program which is being broadcasted at the present and the URLs of video programs which were broadcasted are invisibly embedded by steganography. The video program URL is converted into a simple code, and the code is invisibly embedded by steganography in a video program which is being broadcasted.