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wnpllrzodiac/gist:5d360bac8d61dd0ca8294a0fd8475c00

Created December 28, 2018 06:12
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ffmpeg swscale
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gistfile1.txt
放大：
重视速度：fast_bilinear, point
重视质量：cubic, spline, lanczos
缩小：
重视速度：fast_bilinear, point
重视质量：gauss, bilinear
重视锐度：cubic, spline, lanczos
注意：使用定bit（而不是定量化器）编码时，稍模糊的输入可能反而比较为锐的输入在缩放后获得较好的结果，尤其在低码率时更是如此。
错误类型
ringing
在锐利的边缘有块状的波或噪点
糟糕的：sinc, lanczos (with high filter length)
可接受：lanczos (with low filter length), cubic, spline
优秀的：area, (fast)blinear, gauss, point
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