这里是ffmpeg给图片上加文字说明。root135@root135:~/Pictures/Wallpapers$ ffmpeg -i wolfgang-hasselmann-WrVvYxq11Yk-unsplash.jpg -vf “drawtext=fontcolor=white:line_spacing=5:fontfile=/usr/share/fonts/msyh.ttf:text=’Can change system’:fontsize=h/8:x=(w-text_w)/3:y=(h-text_h*3)” -f image2 wolfgang-hasselmann-WrVvYxq11Yk-unsplash-0.jpg