格非播出系统格式解析及在转码软件中的应用

摘要

在目前播出系统设备的数字化改造中,通常采用格非MagiStream视频服务器构建硬盘播出系统,但是由于格非硬盘播出系统文件格式的特殊性,一些标准的MPEG-2文件无法直接在格非播出系统中播出,需要通过视频上载方式或格非上载软件的转码上传完成.为了提高播出系统的工作效率,在详细解析格非视频文件、音频文件和索引文件的基础上,找出了标准的MPEG-2视频文件和PCM音频文件与其的差异,并给出了播出系统节目素材转码软件的设计方法.%CeFei MagiStream video servers are usually adopted to build the hard disk broadcast, during the current digital transformation for broadcast system equipment. As the specificity of the file format in GeFei hard disk broadcast system, some of the standard MPEG? files can not be directly in GeFei system. In order to broadcast smoothly, the program materials need to be uploaded or adopted professional GeFei software. The features of the index files and video-audio files in GeFei system are analyzed, and the differences among the standard MPEG-2 video files, PCM audio files and GeFei files are introduces. With the aim to further improve the efficiency of broadcast system, the design of the program materials transcoding software is shown in this paper.