| At present,film digitization has already become reality,but vedio and audio data format that the digital film adopts is increasing constantly,it should wrap vedio and audio to unified format in order to exchange freely under equipment.At the same time,ensure digital vedio and audio security,it need encrypt them.So it is important to solve problems of interchangeability of file format and security.Based on analysis and research on MPEG-4 vedio format,AC-3 audio fomat,MXF format and Technical element of wrapping a MXF package,and designing encryption schemes about combination of encrypting MXF and MPEG-4.In the end,I have developped MXF Wrapping and encrypting vedio audio system under VC ++ 6.0。... |