| 摘要 |
<p>In an audio-video synchronous playback control system (2) which outputs coded audio data to an external audio decoding device (8A) so as to be decoded and played back by the external audio decoding device (8A) while playing back video data maintaining synchronization with the audio data playback of the external audio decoding device (8A), an audio information analysis section (5) figures out the size of one unit of the coded audio data and the size of audio data which is obtained by decoding the one unit of the coded audio data. A silent data generation section (6) generates silent data of a size corresponding to the size of audio data which is obtained by decoding the coded audio data outputted to the external audio decoding device (8A), by use of the sizes figured out by the audio information analysis section (5). The silent data are played back or processed by an audio output section (11) and the video data are played back by a video decoding/output section (13, 14). The video data playback of the video decoding/output section (13, 14) is controlled based on the amount of the silent data which are played back or processed by the audio output section (11), thereby the synchronization between the audio data playback by the (special-purpose) external audio decoding device (8A) and the video data playback by the video decoding/output section (13, 14) can be maintained precisely. <IMAGE></p> |
