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ffmpeg で指定した場所にフィルタを当てる
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ffplay -f lavfi -i smptebars \ | |
-vf "split[0][1];[0]colorkey=0x00bc00,\ | |
lutrgb=val:val:val:if(val\,0\,1)*255,noise=alls=80:allf=t+u[0a];[1][0a]overlay" | |
ffmpeg -f lavfi -i smptebars \ | |
-vf "split[0][1];[0]colorkey=0x00bc00,\ | |
lutrgb=val:val:val:if(val\,0\,1)*255,noise=alls=80:allf=t+u[0a];\ | |
[1][0a]overlay=format=rgb" -vframes 1 0x00bc00.png |
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