libav实现视频流的读取和编解码,程序比较经典，适合初学者下载-Libav realize streaming video of reading and decoding, the program more classical, for beginners download

光流算法是比较经典的运动估计方法，光流场反映了图像上每一点灰度的变化趋势-Optical flow algorithm is the classical motion estimation method, optical flow field reflects the change tendency of every point on the image grayscale

经典运动估计与运动补偿测试视频，320x240分辨率，AVI格式(shaky_car.avi,Classical motion estimation and motion compensated test video, 320x240 resolution, AVI format)