一种基于GOP的MPEG-2媒体流切割与合并方法  

A GOP-Based Method for Clipping and Merging MPEG-2 Media Streams

作　　者：胡旭迈[1] 任金昌[1] 

机构地区：[1]西北工业大学计算机科学与工程系

出　　处：《微型电脑应用》2005年第7期51-53,3,共3页Microcomputer Applications

基　　金：获西北工业大学科研基金支持(编号G14119)

摘　　要：MPEG-2视频编码技术由于其较高的压缩比和高质量图像,在数字电视及电影等方面具有重要应用。由于编码算法相对较为复杂,迫切需要解决MPEG-2媒体流的切割和合并问题,从而实现有效的节目制作。本文正是针对MPEG-2媒体流,提出了一种基于GOP的压缩域视频分割与合并方法。通过分析媒体流的数据结构,详细给出了算法的原理和实现过程。最后,还通过实验证明了该方法的可行性和高效率。MPEG-2 coding technology has wide and important multimedia application in digital TV and films due to its highcompression rate and superior video quality. According to the complex coding algorithm, operation is hard on compressedMPEG-2 media files, which includes clipping, merging and nonlinear editing, etc. A workable method for clipping and mergingof MPEG-2 media streams is in bad need in order to realize the efficient program making. In this paper, we'll bring forward amethod for clipping and merging MPEG-2 media files based on GOP (Group Of Pictures), and have validated its feasibility andvalidity through experiments.

关 键 词：图组(GOP) MPEG-2 媒体流 切割/合并 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]