GstGL.GLBaseFilter¶

Subclasses:: GstGL.GLFilter

Methods¶

Inherited:: GstBase.BaseTransform (15), Gst.Element (82), Gst.Object (27), GObject.Object (37)
Structs:: Gst.ElementClass (10), GObject.ObjectClass (5)

	`find_gl_context` ()
	`get_gl_context` ()

Virtual Methods¶

Inherited:: GstBase.BaseTransform (22), Gst.Element (16), Gst.Object (1), GObject.Object (7)

	`do_gl_set_caps` (incaps, outcaps)
	`do_gl_start` ()
	`do_gl_stop` ()

Properties¶

Inherited:: GstBase.BaseTransform (1), Gst.Object (2)

Name	Type	Flags	Short Description
`context`	`GstGL.GLContext`	r	Get OpenGL context

Signals¶

Inherited:: Gst.Element (3), Gst.Object (1), GObject.Object (1)

Fields¶

Inherited:: Gst.Element (3), Gst.Object (1), GObject.Object (1)

Name	Type	Access	Description
context	`GstGL.GLContext`	r	the currently configured `GstGL.GLContext`
display	`GstGL.GLDisplay`	r	the currently configured `GstGL.GLDisplay`
in_caps	`Gst.Caps`	r	the currently configured input `Gst.Caps`
out_caps	`Gst.Caps`	r	the currently configured output `Gst.Caps`
parent	`GstBase.BaseTransform`	r

Class Details¶

class GstGL.GLBaseFilter(**kwargs)¶

Bases:: GstBase.BaseTransform
Abstract:: No
Structure:: GstGL.GLBaseFilterClass

GstGL.GLBaseFilter handles the nitty gritty details of retrieving an OpenGL context. It also provided some wrappers around GstBase.BaseTransform's start(), stop() and set_caps() virtual methods that ensure an OpenGL context is available and current in the calling thread.

find_gl_context()[source]¶

Returns:: Whether an OpenGL context could be retrieved or created successfully
Return type:: bool

New in version 1.16.

get_gl_context()[source]¶

Returns:: the GstGL.GLContext found by self
Return type:: GstGL.GLContext or None

New in version 1.18.

do_gl_set_caps(incaps, outcaps) virtual¶

Parameters:

incaps (Gst.Caps) –
outcaps (Gst.Caps) –

Return type:

bool

called in the GL thread when caps are set on filter. Note: this will also be called when changing OpenGL contexts where #GstBaseTransform::set_caps may not.

do_gl_start() virtual¶

Return type:: bool

called in the GL thread to setup the element GL state.

do_gl_stop() virtual¶: called in the GL thread to setup the element GL state.

Property Details¶

GstGL.GLBaseFilter.props.context¶

Name:: context
Type:: GstGL.GLContext
Default Value:: None
Flags:: READABLE

Get OpenGL context