【摘要】 分析了MPEG-2编码数据结构,针对以MPEG-2格式存储的多媒体文件再次作为原始媒体数据进行相应的处理后面临重复压缩带来的图像质量问题,讨论了MPEG-2存储格式文件重复压缩的目的和意义,给出了一种MPEG-2重复编码的实现方法并分析了重复编码中一些参数的性能。更多还原

【Abstract】 The video data structure of coding is explained. When the video data are saved as MPEG-2 used for source files, the source file may face the image quality problems after recoding. The intension and meaning of the recoding of the files saved as MPEG-2 are discussed, a kind of MPEG-2 recoding method is introduced and some parameters of the recoding are analyzed emphatically.更多还原