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YUV format format = 4:1:1 (H:V =
2:2) format = 4:1:1 (H:V =
4:1) format = 4:2:2 (H:V =
2:1) format = 4:4:4 (H:V =
1:1) 软件：ffmpeg
方法：ffmpeg -y -s
<widthxheight> -i <input file> <output
file> 参数： -y---Override the output
file if exist； -s---The size of the
input file； -r---frame
rate -pix_fmt yuv411p---YUV
format |
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