CONTENT TRANSMISSION DEVICE, CONTENT PLAYBACK DEVICE, CONTENT DELIVERY SYSTEM, CONTROL METHOD FOR CONTENT TRANSMISSION DEVICE, CONTROL METHOD FOR CONTENT PLAYBACK DEVICE, DATA STRUCTURE, CONTROL PROGRAM, AND RECORDING MEDIUM

摘要

A content transmission unit (22) of a server (1), when a request from a client (2) requires a segment transmission, waits until the segment is in a deliverable state, and after the segment achieves a deliverable state, transmits a response that contains the segment to the client (2). Accordingly, it is possible to suppress delay and implements high quality, low delay live streaming.