simplevideomark
This plugin produces pattern-count squares in the bottom left corner of the video frames. The squares have a width and height of respectively pattern-width and pattern-height. Even squares will be black and odd squares will be white.
After writing the pattern, pattern-data-count squares after the pattern squares are produced as the bitarray given in pattern-data. 1 bits will produce white squares and 0 bits will produce black squares.
The element can be enabled with the enabled property. It is mostly used together with the simplevideomarkdetect plugin.
Example launch line
gst-launch-1.0 videotestsrc ! simplevideomark ! videoconvert ! ximagesink
Add the default black/white squares at the bottom left of the video frames.
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseTransform ╰──GstVideoFilter ╰──simplevideomark
Factory details
Authors: – Wim Taymans
Classification: – Filter/Effect/Video
Rank – none
Plugin – videosignal
Package – GStreamer Bad Plug-ins
Pad Templates
sink
video/x-raw:
format: { I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
src
video/x-raw:
format: { I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Properties
bottom-offset
“bottom-offset” gint
The offset from the bottom border where the pattern starts
Flags : Read / Write / Construct
Default value : 0
enabled
“enabled” gboolean
Enable or disable the filter
Flags : Read / Write / Construct
Default value : true
left-offset
“left-offset” gint
The offset from the left border where the pattern starts
Flags : Read / Write / Construct
Default value : 0
pattern-count
“pattern-count” gint
The number of pattern markers
Flags : Read / Write / Construct
Default value : 4
pattern-data
“pattern-data” guint64
The extra data pattern markers
Flags : Read / Write / Construct
Default value : 10
pattern-data-count
“pattern-data-count” gint
The number of extra data pattern markers
Flags : Read / Write / Construct
Default value : 5
pattern-height
“pattern-height” gint
The height of the pattern markers
Flags : Read / Write / Construct
Default value : 16
pattern-width
“pattern-width” gint
The width of the pattern markers
Flags : Read / Write / Construct
Default value : 4
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