[gst-devel] Some basic video plugins
poetbeware at gmail.com
Sun Sep 9 19:59:26 CEST 2007
So looking through the plug-ins list, I'm not seeing some basic video
plugins that would be useful in practically any video editing
application. So I'm thinking of writing them, and wanted to be sure I
didn't miss anything.
The plugins I plan to write are:
composite: Take two video streams and overlay one on top of the other,
supporting blending modes like the GIMP's (eg, Addition, Multiply,
affine: Apply an arbitrary affine transform to an image. Can be used
to translate/scale/rotate in one pass.
blur_channel: Blur just one channel of an image (particularly useful
for blurring just the alpha channel).
copy_channel: Copy one channel of an image to another (particularly
useful for copying any color channel of a grayscale matte to the alpha
maximum/minimum: Replace a channel value of each pixel with the
maximum/minimum value of its neighboring pixels.
bezier: Use cairo to draw bezier curves onto one or more channels (can
be used to create masks if applied to the apha channel).
chroma_key: Replace a color with alpha, for greenscreen/bluescreen work.
Do any of these already exist?
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