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August 13, 2020 22:57
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Greenscreen to transparent video
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| ffmpeg -i input.mp4 -b:v 1M -vf chromakey=0x00FF00:0.2:0.2 -c:v libx264 -pix_fmt yuva420p -metadata:s:v:0 alpha_mode="1" -auto-alt-ref 0 output.webm |
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