摘要 |
<p>Encoding and decoding of subtitle data is performed in real time. A buffer regulates a flow rate of the subtitle data to ensure that the appropriate subtitles are superimposed with the correct video picture. In encoding, subtitles are generated in correspondence to a video picture. The subtitles are separately encoded and multiplexed with the video picture for transmission. Upon decoding, the subtitles are selected at a time which corresponds to the display of the corresponding video picture. Since the subtitles are processed separately from the video data, the subtitles may be manipulated with great control; thus providing more flexibility in encoding and decoding.</p> |