GstAudioVisualizer

A baseclass for scopes (visualizers). It takes care of re-fitting the audio-rate to video-rate and handles renegotiation (downstream video size changes).

It also provides several background shading effects. These effects are applied to a previous picture before the render() implementation can draw a new frame.

GstAudioVisualizer 

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstAudioVisualizer

Members

parent (GstElement) –
No description available
req_spf (guint) –
No description available
vinfo (GstVideoInfo) –
No description available
ainfo (GstAudioInfo) –
No description available

Class structure

GstAudioVisualizerClass

GstPbutils.AudioVisualizerClass

GstPbutils.AudioVisualizerClass

GstPbutils.AudioVisualizer 

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstPbutils.AudioVisualizer

Members

parent (Gst.Element) –
No description available
req_spf (Number) –
No description available
vinfo (GstVideo.VideoInfo) –
No description available
ainfo (GstAudio.AudioInfo) –
No description available

GstPbutils.AudioVisualizer 

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstPbutils.AudioVisualizer

Members

parent (Gst.Element) –
No description available
req_spf (int) –
No description available
vinfo (GstVideo.VideoInfo) –
No description available
ainfo (GstAudio.AudioInfo) –
No description available

Properties

shade-amount 

“shade-amount” guint

Flags : Read / Write

shade-amount 

“shade-amount” Number

Flags : Read / Write

shade_amount 

“self.props.shade_amount” int

Flags : Read / Write

shader 

“shader” GstAudioVisualizerShader *

Flags : Read / Write

shader 

“shader” GstPbutils.AudioVisualizerShader

Flags : Read / Write

shader 

“self.props.shader” GstPbutils.AudioVisualizerShader

Flags : Read / Write

Virtual Methods

decide_allocation 

gboolean
decide_allocation (GstAudioVisualizer * scope,
                   GstQuery * query)

Parameters:

scope –
No description available
query –
No description available
Returns –
No description available

vfunc_decide_allocation 

function vfunc_decide_allocation(scope: GstPbutils.AudioVisualizer, query: Gst.Query): {
    // javascript implementation of the 'decide_allocation' virtual method
}

Parameters:

No description available
query (Gst.Query) –
No description available
Returns (Number) –
No description available

do_decide_allocation 

def do_decide_allocation (scope, query):
    #python implementation of the 'decide_allocation' virtual method

Parameters:

No description available
query (Gst.Query) –
No description available
Returns (bool) –
No description available

render 

gboolean
render (GstAudioVisualizer * scope,
        GstBuffer * audio,
        GstVideoFrame * video)

Parameters:

scope –
No description available
audio –
No description available
video –
No description available
Returns –
No description available

vfunc_render 

function vfunc_render(scope: GstPbutils.AudioVisualizer, audio: Gst.Buffer, video: GstVideo.VideoFrame): {
    // javascript implementation of the 'render' virtual method
}

Parameters:

No description available
audio (Gst.Buffer) –
No description available
video (GstVideo.VideoFrame) –
No description available
Returns (Number) –
No description available

do_render 

def do_render (scope, audio, video):
    #python implementation of the 'render' virtual method

Parameters:

No description available
audio (Gst.Buffer) –
No description available
video (GstVideo.VideoFrame) –
No description available
Returns (bool) –
No description available

setup 

gboolean
setup (GstAudioVisualizer * scope)

Parameters:

scope –
No description available
Returns –
No description available

vfunc_setup 

function vfunc_setup(scope: GstPbutils.AudioVisualizer): {
    // javascript implementation of the 'setup' virtual method
}

Parameters:

No description available
Returns (Number) –
No description available

do_setup 

def do_setup (scope):
    #python implementation of the 'setup' virtual method

Parameters:

No description available
Returns (bool) –
No description available

Function Macros

GST_IS_SYNAESTHESIA 

#define GST_IS_SYNAESTHESIA(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_VISUALIZER))

GST_IS_SYNAESTHESIA_CLASS 

#define GST_IS_SYNAESTHESIA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_VISUALIZER))

Enumerations

GstAudioVisualizerShader

Different types of supported background shading functions.

Members
GST_AUDIO_VISUALIZER_SHADER_NONE (0) –

no shading

GST_AUDIO_VISUALIZER_SHADER_FADE (1) –

plain fading

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_UP (2) –

fade and move up

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_DOWN (3) –

fade and move down

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_LEFT (4) –

fade and move left

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_RIGHT (5) –

fade and move right

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_HORIZ_OUT (6) –

fade and move horizontally out

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_HORIZ_IN (7) –

fade and move horizontally in

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_VERT_OUT (8) –

fade and move vertically out

GST_AUDIO_VISUALIZER_SHADER_FADE_AND_MOVE_VERT_IN (9) –

fade and move vertically in

GstPbutils.AudioVisualizerShader

Different types of supported background shading functions.

Members
GstPbutils.AudioVisualizerShader.NONE (0) –

no shading

GstPbutils.AudioVisualizerShader.FADE (1) –

plain fading

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_UP (2) –

fade and move up

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_DOWN (3) –

fade and move down

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_LEFT (4) –

fade and move left

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_RIGHT (5) –

fade and move right

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_HORIZ_OUT (6) –

fade and move horizontally out

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_HORIZ_IN (7) –

fade and move horizontally in

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_VERT_OUT (8) –

fade and move vertically out

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_VERT_IN (9) –

fade and move vertically in

GstPbutils.AudioVisualizerShader

Different types of supported background shading functions.

Members
GstPbutils.AudioVisualizerShader.NONE (0) –

no shading

GstPbutils.AudioVisualizerShader.FADE (1) –

plain fading

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_UP (2) –

fade and move up

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_DOWN (3) –

fade and move down

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_LEFT (4) –

fade and move left

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_RIGHT (5) –

fade and move right

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_HORIZ_OUT (6) –

fade and move horizontally out

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_HORIZ_IN (7) –

fade and move horizontally in

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_VERT_OUT (8) –

fade and move vertically out

GstPbutils.AudioVisualizerShader.FADE_AND_MOVE_VERT_IN (9) –

fade and move vertically in

Callbacks

GstAudioVisualizerShaderFunc 

(*GstAudioVisualizerShaderFunc) (GstAudioVisualizer * scope,
                                 const GstVideoFrame * s,
                                 GstVideoFrame * d)

Parameters:

scope –
No description available
s –
No description available
d –
No description available

GstPbutils.AudioVisualizerShaderFunc 

function GstPbutils.AudioVisualizerShaderFunc(scope: GstPbutils.AudioVisualizer, s: GstVideo.VideoFrame, d: GstVideo.VideoFrame): {
    // javascript wrapper for 'GstAudioVisualizerShaderFunc'
}

Parameters:

No description available
No description available
No description available

GstPbutils.AudioVisualizerShaderFunc 

def GstPbutils.AudioVisualizerShaderFunc (scope, s, d):
    #python wrapper for 'GstAudioVisualizerShaderFunc'

Parameters:

No description available
No description available
No description available

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