Control apparatus, control method and program

A control method performed by a control device for controlling a bit rate selectable by a client terminal in a video distribution network in which video data is distributed, the control device including a database configured to store distribution information, band allocation information, and distribution system information, the distribution information including information regarding video data in a distribution system, the band allocation information including an allocated band of each session in which the distribution system performs video distribution, and the distribution system information including a channel band of the distribution system, the method comprising:

• receiving a viewing request from the client terminal;
• calculating an available band in the distribution system with reference to the database;
• and
• determining a maximum bit rate selectable by the client terminal based on the available band and one or more bit rates of video data corresponding to the viewing request.

A non-transitory reocrding medium storing a program, wherein execution of the program causes one or more computers to perform operations comprising:

• storing, in a database, distribution information, band allocation information, and distribution system information, the distribution information including information regarding video data in a distribution system, the band allocation information including an allocated band of each session in which a distribution system performs video distribution, and the distribution system information including a channel band of the distribution system;
• receiving a viewing request from a client terminal;
• calculating an available band in the distribution system with reference to the database;
• and
• determining a first maximum bit rate selectable by the client terminal based on the available band and one or more bit rates of video data corresponding to the viewing request.