Reproducing apparatus, reproducing method, computer program, program storage medium, data structure, recording medium, recording device, and manufacturing method of recording medium

摘要

A reproducing apparatus includes a playback data acquisition unit for acquiring playback data containing encoded stream data, a decoding unit for decoding the stream data, a mixing unit for mixing data to be mixed, different from the stream data, with the stream data decoded by the decoding unit, and a selecting unit for selecting between supplying the stream data to the decoding unit and outputting the stream data, and a control unit for controlling the selecting unit. The control unit acquires, from the playback data acquired by the playback data acquisition unit, determination information indicating whether the playback data contains the data to be mixed with the stream data, and controls the selecting unit to output the stream data if the determination information determines that the playback data contains no data to be mixed and if data processed by the playback data processing unit is output as encoded data.

主权项

1. A reproducing apparatus comprising:
playback data acquisition means for acquiring playback audio data containing encoded stream data; decoding means for decoding the stream data; mixing means for mixing audio data to be mixed, different from the stream data, with stream data decoded by the decode means; selecting means for selecting between supplying stream data directly without decoding and encoding or applying the decoded stream data having been mixed with additional audio data to the encoder; and control means for controlling the selecting means, wherein the control means acquires, from the playback data acquired by the playback data acquisition means, determination information indicating whether the playback data contains additional audio data to be mixed with the stream data, and automatically controls the selecting means to output the stream data directly if the determination information determines that the playback data contains no additional audio data to be mixed and providing stream data having been mixed with additional audio data if the additional audio data is available, and further wherein a data flag is set in order to enable the control means to automatically acquire the determination information from the playback data.