| 摘要 |
PROBLEM TO BE SOLVED: To highly precisely synchronize audio data with video data to output them. SOLUTION: In the reproduction method, encoded video data and encoded audio data are reproduced and decoded, the decoded audio data are written in a DMA transfer buffer, the decoded audio data are read from the DMA transfer buffer to output them to an audio output device and to output the decoded video data to a video output device. On the basis of an output value of a synchronous timer for counting clocks of higher frequency than a system timer for reproduction processing and an output delay time obtained from a state of the audio data stored in the DMA buffer, outputs of the audio data and video data are controlled so that reproduction elapsed time of the audio data to be outputted from the audio output device and reproduction elapsed time to be outputted from the video output device synchronize with each other. COPYRIGHT: (C)2005,JPO&NCIPI
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