During the video encoding process, there are two coding types, which are Intra-frame and Inter-frame, using the methods of motion prediction, estimation and compensation.

在视频压缩的过程中，实现了帧内编码与帧间编码两种编码方式，运用了预测编码、运动估计、运动补偿等技术。

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Some refined coding methods, including Improved PB frames, Advanced Intra Coding and Advanced Prediction Mode, are used to improve the coding efficiency.

提高编码效率的技术有改进的PB帧、先进的帧内预测编码和先进的预测模式等；

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