中心点水平旋转 ffmpeg -i input.mp4 -loop 1 -i 2.png -filter_complex “[0:v]copy;[0:a]acopy;[1:v]copy[pm1];[pm1]format=rgba,colorchannelmixer=aa=1,scale=200:60,format=rgba,rotate=’0:c=0x00000000:ow=hypot(iw,ih):oh=ow’,format=rgba,rotate=’PI/5*t:c=0x00000000:ow=hypot(iw,ih):oh=ow'[pm1];[pm1]overlay=(W-w)/2+0:(H-h)/2+0” -t 00:00:15 -map “” -map “” 1.mp4