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1. 发明授权

US08634702B2 Method for skipping multimedia file and multimedia apparatus thereof 有权
标题翻译：跳过多媒体文件及其多媒体装置的方法
公开(公告)号：US08634702B2
公开(公告)日：2014-01-21
申请号：US13464637
申请日：2012-05-04
申请人： Liang Chen , Jianglong Chang , Ming Liu
发明人： Liang Chen , Jianglong Chang , Ming Liu
IPC分类号： H04N9/80
CPC分类号： H04N5/783 , H04N9/8042 , H04N9/8205
摘要： A multimedia file skipping method. The skipping method adds obtained increased amount of time to a current decoding time stamp to determine a target time stamp, determines a PCR (Program Clock Reference) corresponding to the target time stamp as a PCR prediction value; determines a position offset corresponding to the PCR prediction value as a target position offset according to a linear relationship between the PCR and position offset of the multimedia file; and skips to the target position offset and plays the multimedia file from this position. By the aforementioned, it is not necessary to set a time stamp index file, and calculation is performed by utilizing the linear relationship between the PCR and the position offset, and thus the amount of calculation is reduced, time cost is reduced, and skipping speed is significantly improved.
摘要翻译：多媒体文件跳过方法。跳过方法将获得的增加的时间量添加到当前解码时间戳中以确定目标时间戳，将与目标时间戳对应的PCR（程序时钟参考）确定为PCR预测值; 根据PCR和多媒体文件的位置偏移之间的线性关系，确定与PCR预测值相对应的位置偏移作为目标位置偏移; 并跳到目标位置偏移，并从该位置播放多媒体文件。通过上述，不需要设置时间戳索引文件，并且通过利用PCR和位置偏移之间的线性关系来进行计算，因此减少了计算量，降低了时间成本和跳过速度明显改善。

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