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These filters are designed for storing and transmitting video sequences with alpha using higher-efficiency codecs such as x264 which don't natively support an alpha channel. 'alphaextract' takes an input stream with an alpha channel and returns a video containing just the alpha component as a grayscale value; 'alphamerge' takes an RGB or YUV stream and adds an alpha channel recovered from a second grayscale stream. Signed-off-by: Steven Robertson <steven@strobe.cc> Signed-off-by: Stefano Sabatini <stefasab@gmail.com> |
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alphaextract_rgb | ||
alphaextract_yuv | ||
alphamerge_rgb | ||
alphamerge_yuv | ||
colormatrix1 | ||
colormatrix2 | ||
crop | ||
crop_scale | ||
crop_scale_vflip | ||
crop_vflip | ||
drawbox | ||
fade | ||
life | ||
null | ||
overlay | ||
pad | ||
pixfmts_copy | ||
pixfmts_crop | ||
pixfmts_hflip | ||
pixfmts_null | ||
pixfmts_pad | ||
pixfmts_pixdesctest | ||
pixfmts_scale | ||
pixfmts_super2xsai | ||
pixfmts_vflip | ||
pp | ||
pp2 | ||
pp3 | ||
pp4 | ||
pp5 | ||
pp6 | ||
scale200 | ||
scale500 | ||
select | ||
setdar | ||
setsar | ||
testsrc | ||
thumbnail | ||
transpose | ||
unsharp | ||
vflip | ||
vflip_crop | ||
vflip_vflip |