CONTENT SUPPLY DEVICE, CONTENT SUPPLY METHOD, PROGRAM, TERMINAL DEVICE, AND CONTENT SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To mitigate a load of a series of processing of embedding identification information in a content and distributing the content.SOLUTION: A content supply device comprises: a digital watermark processing unit which spatially divides a content into segments to create a segment stream, duplicates the created segment stream by the same number of times as the number of general-purpose codes, and embeds any of the general-purpose codes, as a digital watermark, in common in each segment for each of the duplicated segment streams; a MPD processing unit which creates a MPD for describing information needed for the reception side acquiring the segment stream including the general-purpose code embedded as a digital watermark and distributes the MPD in response to a request from the reception side; and a stream distribution unit which distributes the segment stream including the general-purpose code embedded as a digital watermark in units of the segment, in response to the request from the reception side based on the MPD. This disclosure can be applied to a system for distributing a content.