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glimagesinkelement

glimagesinkelement

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseSink
                    ╰── GstVideoSink
                        ╰── GstGLImageSink

Implemented Interfaces

GstGLImageSink implements GstVideoOverlay and GstNavigation.

Description

Synopsis

Element Information

plugin

opengl

author

Julien Isorce <julien.isorce@gmail.com>

class

Sink/Video

Element Pads

name

sink

direction

sink

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, external-oes }

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

Functions

Types and Values

struct GstGLImageSink

struct GstGLImageSink;

Property Details

The “display” property

  “display”                  gchar *

Display name.

Flags: Read / Write

Default value: NULL


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


The “force-aspect-ratio” property

  “force-aspect-ratio”       gboolean

When enabled, scaling will respect original aspect ratio.

Flags: Read / Write

Default value: TRUE


The “other-context” property

  “other-context”            GstGLContext *

Give an external OpenGL context with which to share textures.

Flags: Read / Write


The “pixel-aspect-ratio” property

  “pixel-aspect-ratio”       GstFraction

The pixel aspect ratio of the device.

Flags: Read / Write


The “context” property

  “context”                  GstGLContext *

Get OpenGL context.

Flags: Read


The “handle-events” property

  “handle-events”            gboolean

When enabled, XEvents will be selected and handled.

Flags: Read / Write

Default value: TRUE


The “ignore-alpha” property

  “ignore-alpha”             gboolean

When enabled, alpha will be ignored and converted to black.

Flags: Read / Write

Default value: TRUE


The “output-multiview-downmix-mode” property

  “output-multiview-downmix-mode” GstGLStereoDownmix

Output anaglyph type to generate when downmixing to mono.

Flags: Read / Write

Default value: Dubois optimised Green-Magenta anaglyph


The “output-multiview-flags” property

  “output-multiview-flags”   GstVideoMultiviewFlags

Output multiview layout modifier flags.

Flags: Read / Write


The “output-multiview-mode” property

  “output-multiview-mode”    GstVideoMultiviewMode

Choose output mode for multiview/3D video.

Flags: Read / Write

Default value: GST_VIDEO_MULTIVIEW_MODE_MONO


The “rotate-method” property

  “rotate-method”            GstGLRotateMethod

rotate method.

Flags: Read / Write

Default value: Identity (no rotation)

Signal Details

The “client-draw” signal

gboolean
user_function (GstGLImageSink *object,
               GstGLContext   *texture,
               GstSample      *width,
               gpointer        user_data)

Will be emitted before actually drawing the texture. The client should redraw the surface/contents with the texture , width and height and and return TRUE.

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


The “client-reshape” signal

gboolean
user_function (GstGLImageSink *object,
               GstGLContext   *width,
               guint           height,
               guint           Returns,
               gpointer        user_data)

The client should resize the surface/window/viewport with the width and height and return TRUE.

Parameters

object

the GstGLImageSink

 

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 content area was resized by the signal. If not, a default viewport resize will occur.

Flags: Run Last

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