simplevideomark: GStreamer Bad Plugins 1.0 Plugins Reference Manual

simplevideomark

Properties

gint	bottom-offset	Read / Write / Construct
gboolean	enabled	Read / Write / Construct
gint	left-offset	Read / Write / Construct
gint	pattern-count	Read / Write / Construct
guint64	pattern-data	Read / Write / Construct
gint	pattern-data-count	Read / Write / Construct
gint	pattern-height	Read / Write / Construct
gint	pattern-width	Read / Write / Construct

Types and Values

struct

GstSimpleVideoMark

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseTransform
                    ╰── GstVideoFilter
                        ╰── GstSimpleVideoMark

Description

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 GstVideoDetect plugin.

Example launch line

1	gst-launch-1.0 videotestsrc ! simplevideomark ! videoconvert ! ximagesink

Add the default black/white squares at the bottom left of the video frames.

Synopsis

Element Information

plugin	videosignal
author	Wim Taymans <wim@fluendo.com>
class	Filter/Effect/Video

Element Pads

name	sink
direction	sink
presence	always
details	video/x-raw, format=(string){ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name	src
direction	source
presence	always
details	video/x-raw, format=(string){ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstSimpleVideoMark

struct GstSimpleVideoMark;