H.264作为下一代视频压缩标准,以其优秀的压缩性能,成为备受关注的焦点和研究问题。但付出的代价是计算复杂度的大幅增加。本文以开源参考模型JM为蓝本进行算法优化,重点介绍了基于PC的优化。 H.264 as the next generation video compression standard, with its excellent compression performance, has become the focus of attention and research issues. But the price paid is a substantial increase in computational complexity. This paper optimizes the algorithm based on the open source reference model JM, and focuses on PC-based optimization.