用C语言来实现基于h.264标准的编码和解码，以官方标准为依据-Using C language to achieve standards-based h.264 encoding and decoding to the official criteria

H.264中的运动估计中的BMA（块匹配算法），共有三种方法，三步搜索法，全局搜索法，二维对数搜索法-H.264 motion estimation in the BMA (fast matching algorithm), a total of three methods, three-step search method, global search method, two-dimensional logarithmic search method