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发明授权
CN101369440B 多媒体文件的产生与播放方法 失效 - 权利终止

多媒体文件的产生与播放方法
摘要：
一种多媒体文件的产生与播放方法。在该产生方法中，首先产生欲写入多媒体文件的多媒体数据。接着产生用以储存多媒体数据的多媒体数据块，而后分析多媒体数据块的特性，以产生元数据块，此元数据块包括可描述多媒体数据块与多媒体数据的特性的元数据，并且可依据所述元数据块确定多媒体数据之间的相互关系。然后再将元数据块与多媒体数据块写入多媒体文件中。当所有的多媒体数据块均写入时，则扫描多媒体文件并读取元数据块，据以在多媒体文件中产生记录这些多媒体数据的相互关系的索引表。据此，可简化产生多媒体文件的步骤，并减少多媒体文件播放前所需的准备时间。
摘要（英）：

The present invention provides methods for generating and playing a multimedia file. In the generating method, multimedia data to be written in the multimedia file is generated, and then a media chunk for storing the multimedia data is generated. Next, a metadata chunk including metadata that describes the characteristics of the media chunk and the multimedia data is generated by analyzing the characteristics of the media chunk. And the correlations between multimedia data can be determined according to the metadata chunks. Afterwards, the metadata chunk and the media chunk are written into the multimedia data file. When all the media chunks have been written, the multimedia file is scanned and the metadata chunks therein are read, such that an index table recording the relations among the multimedia data is generated in the multimedia file.; Therefore, the procedure for generating the multimedia file is simplified and the time for preparing the play of the multimedia file is reduced.

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