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 ::patern-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 videodetect plugin.

Example launch line

gst-launch videotestsrc ! videomark ! ximagesink

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

Element Information

GstVideoMark

typedef struct {
  GstVideoFilter videofilter;
  
  gint width, height;
  guint32 format;

  gint pattern_width;
  gint pattern_height;
  gint pattern_count;
  gint pattern_data_count;
  gint pattern_data;
  gboolean enabled;
} GstVideoMark;

Opaque datastructure.