摘要
为了对DVD视频进行导航、随机检索及增加脚注和说明,可以通过访问DVD私有流1和私有流2的底层接口定义来完成;但由于DVD数据的复杂性,底层访问相当困难。通过对DVD光盘文件、DVD应用程序的分析和公众可存取信息的搜集,总结了私有流的数据结构和访问接口,给出了私有流的基本访问流程以及私有流的部分典型应用;该访问接口已应用于DVD字幕提取软件。
In order to perform video navigation and random retrieval in DVD titles,or add footnotes or memos on DVD video frames,the low level interfaces of private stream 1 and private stream 2 should be used. Because of the complexity of DVD data structure,it＇s very difficult. By analyzing the format of DVD video files and mechanism of DVD application pro- grams,together with public accessible information from the Internet, the data structure of private streams and the interface accessing them are described, and the basic accessing work flow is proposed, along with several typical application demonstrations. The data structure and accessing interface proposed in this article has been applied in DVD subtitle extracting program.
出处
《现代电子技术》
2009年第6期81-85,共5页
Modern Electronics Technique
