本算法通过比较最近播放的多媒体帧的播放时间标记，调整各连续帧的播放持续时间来取得较好的时间控制。
This timing control algorithm is designed by comparing the time stamp of multimedia frame recently flipped and adjusting the playing time of last frame.
数字水印是用信号处理的方法，在数字化的多媒体数据中嵌入的隐蔽标记。
Digital watermark is wrapup marks in the way of signal processing in digitized hyperactive data imbedded.
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