twirl
The twirl element twists the image from the center out.
Example launch line
 gst-launch-1.0 -v videotestsrc ! twirl ! videoconvert ! autovideosink
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstVideoFilter ╰──GstGeometricTransform ╰──GstCircleGeometricTransform ╰──twirl
Factory details
Authors: – Thiago Santos
Classification: – Transform/Effect/Video
Rank – none
Plugin – geometrictransform
Package – GStreamer Bad Plug-ins
Pad Templates
sink
        video/x-raw:
         format: { ARGB, BGR, BGRA, BGRx, RGB, RGBA, RGBx, AYUV, xBGR, xRGB, GRAY8, GRAY16_BE, GRAY16_LE }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
src
        video/x-raw:
         format: { ARGB, BGR, BGRA, BGRx, RGB, RGBA, RGBx, AYUV, xBGR, xRGB, GRAY8, GRAY16_BE, GRAY16_LE }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
Properties
angle
“angle” gdouble
This is the angle in radians by which pixels at the nearest edge of the image will move
Flags : Read / Write
Default value : 3.14159
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