h264 motion detection for v4l

H.264 视频编码标准模型JM的运动检测代码，它采用视频流中的运动矢量来产生黑白的视频帧。-Instruction:International h.264 video codec standard : JM 12.2 s motion detection, which uses the video stream s motion vector to produce a black and white frame.

other vedio used for motion detection test