| 摘要 |
PURPOSE: A method and a device for a streaming service are provided to reduce the load of a server and the traffics of a network by offering the needed data in real-time and using the stored data, not receiving the same data again, for the repetitive playback, while performing the playback even if all needed data is not received. CONSTITUTION: A playback program(31) transmits a command(40) for requesting a file of the multimedia data to a client module(30) or changing a playback position, and receives/plays the stream data(44) from the client module. A control module(32) makes the client module process the received command. If a separated command is not received from the playback program, the control module requests a transmitting/receiving module(35) to receive the data before a needed time by calculating an offset of the needed data. A multimedia data storage(34) functioning as a cache stores/provides the data if the playback program requests the data until the data is removed. The transmitting/receiving module receives a part of the data requested from the control module from the multimedia data to be played and stores the data in the multimedia data storage.
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