mirror
Mirror is a geometric transform element. It splits the image into two halves and reflects one over each other.
Example launch line
 gst-launch-1.0 -v videotestsrc ! mirror ! videoconvert ! autovideosink
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstVideoFilter ╰──GstGeometricTransform ╰──mirror
Factory details
Authors: – Filippo Argiolas 
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
mode
“mode” Mirror-mode *
How to split the video frame and which side reflect
Flags : Read / Write
Default value : left (0)
Named constants
Mirror-mode
How to split the video frame and which side reflect
Members
left (0) – Split horizontally and reflect left into right
        right (1) – Split horizontally and reflect right into left
        top (2) – Split vertically and reflect top into bottom
        bottom (3) – Split vertically and reflect bottom into top
        The results of the search are