glfilterapp

The resize and redraw callbacks can be set from a client code.

CLient callbacks

The graphic scene can be written from a client code through the two glfilterapp properties.

Examples

see gst-plugins-gl/tests/examples/generic/recordgraphic

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──GstGLBaseFilter
                        ╰──GstGLFilter
                            ╰──glfilterapp

Factory details

Authors: – Julien Isorce

Classification: – Filter/Effect

Rank – none

Plugin – opengl

Package – GStreamer Base Plug-ins

Pad Templates

sink

video/x-raw(ANY):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

video/x-raw(memory:GLMemory):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

Presence – always

Direction – sink

Object type – GstPad

src

video/x-raw(memory:GLMemory):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

video/x-raw(ANY):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

Presence – always

Direction – src

Object type – GstPad

Signals

client-draw 

gboolean
client_draw_callback (GstElement * object,
                      guint texture,
                      guint width,
                      guint height,
                      gpointer udata)
def client_draw_callback (object, texture, width, height, udata):
    #python callback for the 'client-draw' signal
function client_draw_callback(object: GstElement * object, texture: guint texture, width: guint width, height: guint height, udata: gpointer udata): {
    // javascript callback for the 'client-draw' signal
}

Will be emitted before to draw the texture. The client should redraw the surface/contents with the texture, width and height.

Parameters:

object –

the glimagesinkelement

texture –

the guint id of the texture.

width –

the guint width of the texture.

height –

the guint height of the texture.

udata –
No description available
Returns (gboolean) –

whether the texture was redrawn by the signal. If not, a default redraw will occur.

Flags: Run Last

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