Stream reproduction device and stream supply device

摘要

A stream playback device for playing back an audio stream including audio frames which are each made up of base data and extension data is provided. The stream playback device includes a decoder and an interface unit operable to receive the audio stream supplied from a stream supply device. The stream playback device notifies the stream supply device whether only the base data or both the base data and the extension data are usable in decoding of the audio stream by the decoder, through the interface unit.