PLAYBACK APPARATUS AND PLAYBACK METHOD
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Abstract
Noise is prevented when decoding an audio stream not containing syncwords or CRC bits in the elementary stream. When decoding a current frame, the private header of the next frame is analyzed and the current frame is muted if the private header of the next frame is not valid. When there is a data discontinuity caused by editing, decoding resumes from the start address of the next frame determined.
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Citations
23 Claims
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1-18. -18. (canceled)
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19. A playback apparatus for receiving a plurality of frames of data, each frame containing an encoded audio signal and, preceding the encoded audio signal, a private header storing attribute information for the encoded audio signal, said playback apparatus comprising:
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a stream analyzer operable to receive a stream containing said plurality of frames of data and analyze the frames of data to detect the private header; a detector operable to detect a data length information denoting the length of the encoded audio signal following the private header based on said attribute information contained in the detected private header; a target data reading section operable to read a target data located after said detected private header based on said data length information; a determining section operable to determine, based on the read target data and the attribute information in the private header, whether or not to output, as audio sound, the encoded audio signal following the private header; and a decoder operable to decode the encoded audio signal in said frame to output audio sound based on the result of said determining section. - View Dependent Claims (20, 21, 22, 23)
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Specification