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glfilterapp

glfilterapp

Types and Values

Object Hierarchy

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

Description

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

Synopsis

Element Information

plugin

opengl

author

Julien Isorce <julien.isorce@gmail.com>

class

Filter/Effect

Element Pads

name

sink

direction

sink

presence

always

details

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

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

name

src

direction

source

presence

always

details

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

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

Functions

Types and Values

struct GstGLFilterApp

struct GstGLFilterApp;

Property Details

The “client-data” property

  “client-data”              gpointer

Pass data to the draw and reshape callbacks.

Flags: Write


The “client-draw-callback” property

  “client-draw-callback”     gpointer

Define a custom draw callback in a client code.

Flags: Write


The “client-reshape-callback” property

  “client-reshape-callback”  gpointer

Define a custom reshape callback in a client code.

Flags: Write

Signal Details

The “client-draw” signal

gboolean
user_function (GstGLFilterApp *object,
               guint           texture,
               guint           width,
               guint           height,
               gpointer        user_data)

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

Parameters

object

the GstGLImageSink

 

texture

the guint id of the texture.

 

width

the guint width of the texture.

 

height

the guint height of the texture.

 

user_data

user data set when the signal handler was connected.

 

Returns

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

Flags: Run Last

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