Content supply device, content supply method, program, terminal device, and content supply system

A content supply method of a content supply device that supplies a plurality of pieces of streaming data that include content of a same subject and differ in bit rate through a same channel, according to an adaptive streaming technique, the content supply method comprising:

• a first supply step of generating, by the content supply device, a zapping stream by delimiting the streaming data according to a timing and a duration in common with another channel and supplying the zapping stream to a reception side via a network;
• a second supply step of generating, by the content supply device, a viewing stream by delimiting the streaming data according to a duration of an integer multiple of the duration of the zapping stream and supplying the viewing stream to the reception side via the network;
• and
• a metafile generating step of generating, by the content supply device, a metafile that is for the reception side to receive the zapping stream and the viewing stream.

A program causing a computer that supplies a plurality of pieces of streaming data that include content of a same subject and differ in bit rate through a same channel, according to an adaptive streaming technique to function as:

• a first supply unit configured to generate a zapping stream by delimiting the streaming data according to a timing and a duration in common with another channel and to supply the zapping stream to a reception side via a network;
• a second supply unit configured to generate a viewing stream by delimiting the streaming data according to a duration of an integer multiple of the duration of the zapping stream and to supply the viewing stream to the reception side via the network;
• and
• a metafile generating unit configured to generate a metafile that is for the reception side to receive the zapping stream and the viewing stream.

A terminal device that receives a plurality of pieces of streaming data supplied from a content supply device that supplies the streaming data through a same channel, according to an adaptive streaming technique, the streaming data including content of a same subject and differing in bit rate,

• wherein the content supply device includes
• a first supply unit configured to generate a zapping stream by delimiting the streaming data according to a timing and a duration in common with another channel and to supply the zapping stream to the terminal device via a network,
• a second supply unit configured to generate a viewing stream by delimiting the streaming data according to a duration of an integer multiple of the duration of the zapping stream and to supply the viewing stream to the terminal device via the network, and
• a metafile generating unit configured to generate a metafile that is for the terminal device to receive the zapping stream and the viewing stream, and
• wherein the terminal device is configured to acquire the metafile, and to receive the zapping stream and the viewing stream supplied through the same channel, based on the acquired metafile.

A content supply system comprising:

• a content supply device configured to supply a plurality of pieces of streaming data that include content of a same subject and differ in bit rate through a same channel, according to an adaptive streaming technique;
• and
• a terminal device configured to receive the streaming data,
• wherein the content supply device includes
• a first supply unit configured to generate a zapping stream by delimiting the streaming data, according to a timing and a duration in common with another channel and to supply the zapping stream to the terminal device via a network,
• a second supply unit configured to generate a viewing stream by delimiting the streaming data according to a duration of an integer multiple of the duration of the zapping stream and to supply the viewing stream to the terminal device via the network, and
• a metafile generating unit configured to generate a metafile that is for the terminal device to receive the zapping stream and the viewing stream, and
• wherein the terminal device is configured to acquire the metafile, and to receive the zapping stream and the viewing stream supplied through the same channel, based on the acquired metafile.