可对yuv文件进行编辑，包括读取任意数量的帧，写入任意数量的帧，定位至任意位置，进行渐变处理（消融、渐入、渐出等）-Of the yuv file to edit any number of fr a mes, including read, write any number of fr a mes, location to any location, gradient processing (ablation, getting into and getting out, etc.)