logo 图片特效

ffmpeg -i %1 -ignore_loop 0 -i %2 -lavfi "overlay=x=t*20" -shortest out.mp4 -y
rem img.rv r.mp4 x.gif 

for %%i in (%1) do magick convert %%i -rotate %2 out%%~ni.png
rem 图片旋转

rem 方形图片旋转
rem ffmpeg -i t.mp4 -loop 1 -i wx.png -lavfi "[1:v]format=rgba,rotate='PI/2*t:c=0x00000000:ow=hypot(iw,ih):oh=ow'[out];[0:v][out]overlay=10:10" -shortest out.mp4 -y

for %%i in (*.mp4) do ffmpeg -i %%i -vf "movie=%1[w];[in][w] overlay=main_w-overlay_w-10:main_h-overlay_h-10"  out%%i -y
ren logo.se a.png

ffmpeg -i "%1" -vf "[in] scale=iw/2:ih/2, pad=2*iw:ih [left]; movie='%2', scale=iw/2:ih/2 [right];[left][right] overlay=main_w/2:0 [out]" -b:v 768k v2.mp4
rem vv a.mp4 b.mp4  拼接视频