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Affine transformation matrix from ffmpeg command line?

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William del Strother
Affine transformation matrix from ffmpeg command line?
on Jun 25, 2018 at 12:55:01 pm

I'd like to apply a 3x3 affine transformation matrix to a video, using the command line ffmpeg tool.

I see that there is some support for this within the ffmpeg libraries (https://ffmpeg.org/doxygen/trunk/group__lavu__video__display.html), but I can't find any command-line equivalent in the documentation.

I'm aware that I can decompose my affine transform into rotations, transforms, shears etc, and I will do that if this functionality is not available. I ask only because it will be cleaner for my application's flow if I can specify the transform directly as a raw matrix.

Many thanks for your time.


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