基于对象的MPEG-4文件格式研究

Study on MPEG-4 File based on Object

在了解 MPEG 4标准的基础上 ,重点阐述了 MP4文件格式标准中文件的时间结构和存储结构 ,从理解该标准中的原子定义出发 ,为原子设计出了具体的类 ,在 VC6 .0中使用代码解析和验证了 MP4文件的物理存储结构 ,从而可以进一步使用 MP4文件 ,设计和实现代码作为整个 MPEG 4流媒体系统的一部分 。

On the basis of understanding of MPEG4 S TANDARD,this paper focuses on detailing the temporal structure and the storing s tructure of the file in MP4 file format standard,begins from understanding the a tom's definition in the standard,and in VC6.0 environment designs specific class es for the atoms in order to parse and verifies the physical structure of MP4 fi le through cording.In doing so,this paper provides reference for future utilizin g of MP4 file as well as for understanding the other parts in MPEG4,whi ch is valuable in theory and practical application.