For example, to vertically flip a video with ffmpeg:

ffmpeg -i in.avi -vf "vflip" out.avi
For example, to vertically flip a video with ffmpeg:

ffmpeg -i in.avi -vf "vflip" out.avi
The coreimagesrc video source can be used for generating input images which are directly fed into the filter chain. By using it, providing input images by another video source or an input video is not required.

coreimage=list_filters=true
For example, to vertically flip a video with ffmpeg:

ffmpeg -i in.avi -vf "vflip" out.avi
Set the grid size (i.e. the number of lines and columns). For the syntax of this option, check the (ffmpeg-utils)"Video size" section in the ffmpeg-utils manual.

ffmpeg -r 1 -i image.jpg -vf untile=1x25 movie.mkv
Set planes to filter. Default is to filter all available planes.

deblock=filter=weak:block=4
Reset rotation of output video. Boolean value, by default disabled.

ffmpeg -i input.mkv -vf v360=e:c3x2:cubic:out_pad=0.01 output.mkv
Typically, the following generated Hald CLUT will be supported by the haldclut filter:

ffmpeg -f lavfi -i haldclutsrc=8 -vf "
   pad=iw+320 [padded_clut];
   smptebars=s=320x256, split [a][b];
   [padded_clut][a] overlay=W-320:h, curves=color_negative [main];
   [main][b] overlay=W-320" -frames:v 1 clut.png
For example, to horizontally flip the input video with ffmpeg:

ffmpeg -i in.avi -vf "hflip" out.avi
This filter also supports the framesync options.

ffmpeg -i distorted.mpg -i reference.mpg -lavfi libvmaf=log_path=output.xml -f null -
The filter also exports the frame metadata lavfi.color_quant_ratio (nb_color_in / nb_color_out) which you can use to evaluate the degree of color quantization of the palette. This information is also visible at info logging level.

ffmpeg -i input.mkv -vf palettegen palette.png

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