在统计分析了TS流中相邻I帧间隔 距离规律的基础上,提出了通过跳转固定步长后再寻找I帧的方法来实现TS流文件快进/快退播放 - based on statisticalanalysis of the adjacent I-frames interval inTS stream, put forward an approach by jump a fixed step and then search for I-frame to the achievementofTS stream f