qroverlay
Element to set random data on a qroverlay.
Example launch line
gst-launch -v -m videotestsrc ! qroverlay ! fakesink silent=TRUE
Since 1.22 the qroverlay
element also supports a GstCustomMeta called
GstQROverlayMeta
which allows upstream elements to set the data to be
rendered on the buffers that flow through it. This custom meta
GstStructure has the following fields:
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstVideoFilter ╰──GstBaseQROverlay ╰──qroverlay
Factory details
Authors: – Thibault Saunier
Classification: – Qrcode overlay containing random data
Rank – none
Plugin – qroverlay
Package – GStreamer Bad Plug-ins
Pad Templates
sink
video/x-raw:
format: { I420 }
framerate: [ 0/1, 2147483647/1 ]
width: [ 16, 2147483647 ]
height: [ 16, 2147483647 ]
src
video/x-raw:
format: { I420 }
framerate: [ 0/1, 2147483647/1 ]
width: [ 16, 2147483647 ]
height: [ 16, 2147483647 ]
Properties
data
“data” gchararray
Data to write in the QRCode to be overlaid
Flags : Read / Write
Default value : NULL
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