gltestsrc
The gltestsrc element is used to produce test video texture. The video test produced can be controlled with the "pattern" property.
Example launch line
 gst-launch-1.0 -v gltestsrc pattern=smpte ! glimagesink
Shows original SMPTE color bars in a window.
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseSrc ╰──GstPushSrc ╰──GstGLBaseSrc ╰──gltestsrc
Factory details
Authors: – David A. Schleef 
Classification: – Source/Video
Rank – none
Plugin – opengl
Package – GStreamer Base Plug-ins
Pad Templates
src
        video/x-raw(memory:GLMemory):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D
Properties
is-live
“is-live” gboolean
Whether to act as a live source
Flags : Read / Write
Default value : false
pattern
“pattern” Gltest-src-pattern *
Type of test pattern to generate
Flags : Read / Write
Default value : smpte (0)
Named constants
Gltest-src-pattern
The test pattern to produce.
Members
smpte (0) – SMPTE 100%% color bars
        snow (1) – Random (television snow)
        black (2) – 100%% Black
        white (3) – 100%% White
        red (4) – Red
        green (5) – Green
        blue (6) – Blue
        checkers-1 (7) – Checkers 1px
        checkers-2 (8) – Checkers 2px
        checkers-4 (9) – Checkers 4px
        checkers-8 (10) – Checkers 8px
        circular (11) – Circular
        blink (12) – Blink
        mandelbrot (13) – Mandelbrot Fractal
        The results of the search are