wpesrc

The wpesrc element is used to produce a video texture representing a web page rendered off-screen by WPE.

Starting from WPEBackend-FDO 1.6.x, software rendering support is available. This features allows wpesrc to be used on machines without GPU, and/or for testing purpose. To enable it, set the LIBGL_ALWAYS_SOFTWARE=true environment variable and make sure video/x-raw, format=BGRA caps are negotiated by the wpesrc element.

Example launch lines

gst-launch-1.0 -v wpesrc location="https://gstreamer.freedesktop.org" ! queue ! glimagesink

Shows the GStreamer website homepage

LIBGL_ALWAYS_SOFTWARE=true gst-launch-1.0 -v wpesrc num-buffers=50 location="https://gstreamer.freedesktop.org" \
  videoconvert ! pngenc ! multifilesink location=/tmp/snapshot-%05d.png

Saves the first 50 video frames generated for the GStreamer website as PNG files in /tmp.

gst-play-1.0 --videosink gtkglsink wpe://https://gstreamer.freedesktop.org

Shows the GStreamer website homepage as played with GstPlayer in a GTK+ window.

gst-launch-1.0  glvideomixer name=m sink_1::zorder=0 ! glimagesink wpesrc location="file:///tmp/asset.html" draw-background=0 \
  ! m. videotestsrc ! queue ! glupload ! glcolorconvert ! m.

Composite WPE with a video stream in a single OpenGL scene.

gst-launch-1.0 glvideomixer name=m sink_1::zorder=0 sink_0::height=818 sink_0::width=1920 ! gtkglsink \
   wpesrc location="file:///tmp/asset.html" draw-background=0 ! m.
   uridecodebin uri="http://example.com/Sintel.2010.1080p.mkv" name=d d. ! queue ! glupload ! glcolorconvert ! m.

Composite WPE with a video stream, sink_0 pad properties have to match the video dimensions.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseSrc
                    ╰──GstPushSrc
                        ╰──GstGLBaseSrc
                            ╰──wpesrc

Implemented interfaces

Factory details

Authors: – Philippe Normand , Žan Doberšek

Classification: – Source/Video

Rank – none

Plugin – wpe

Package – gst-plugins-bad

Pad Templates

src

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

Presence – always

Direction – src

Object type – GstPad

Signals

configure-web-view 

configure_web_view_callback (GstElement * src,
                             GObject * webview,
                             gpointer udata)
def configure_web_view_callback (src, webview, udata):
    #python callback for the 'configure-web-view' signal
function configure_web_view_callback(src: GstElement * src, webview: GObject * webview, udata: gpointer udata): {
    // javascript callback for the 'configure-web-view' signal
}

Allow application to configure the webView settings.

Parameters:

src –

the object which received the signal

webview –

the webView

udata –
No description available

Flags: Run Last

load-bytes 

load_bytes_callback (GstElement * src,
                     GBytes * bytes,
                     gpointer udata)
def load_bytes_callback (src, bytes, udata):
    #python callback for the 'load-bytes' signal
function load_bytes_callback(src: GstElement * src, bytes: GBytes * bytes, udata: gpointer udata): {
    // javascript callback for the 'load-bytes' signal
}

Load the specified bytes into the internal webView.

Parameters:

src –

the object which received the signal

bytes –

the GBytes data to load

udata –
No description available

Flags: Run Last / Action

Properties

draw-background 

“draw-background” gboolean

Whether to draw the WebView background

Flags : Read / Write

Default value : true

location 

“location” gchararray

The URL to display

Flags : Read / Write

Default value : NULL

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