公开(公告)号：SG118180A1

公开(公告)日：2006-01-27

申请号：SG200301441

申请日：2003-03-07

Applicant: ST MICROELECTRONICS ASIA

Inventor： HUA JIAN SUN ,  GEORGE SAPNA

IPC: G10L19/00 ,  G11B20/10 ,  G11B20/12 ,  H04N5/926

Abstract: A method is disclosed of decoding audio data, encoded in multiple DIF blocks in a Digital Video (DV) data stream, and outputting said audio data as a PCM frame, including the following steps: (i) fetching a single Digital Interface Frame (DIF) block from the DV data stream; (ii) de-shuffling a first byte in the single DIF block to determine its index (n) in the PCM frame; (iii) repeating step (ii) until the last byte in the single DIF block is processed; (iv) writing the de-shuffled data into the PCM frame for output if the present DIF block is the last in the present DV frame; (v) repeat steps (i) to (iv). Also disclosed is apparatus arranged to perform the method, and de-shuffling equations to perform the de-shuffling of the data.