|  |  |  | GStreamer Base Plugins 0.10 Plugins Reference Manual |  | 
|---|---|---|---|---|
GObject +----GstObject +----GstElement +----GstBaseSrc +----GstPushSrc +----GstVideoTestSrc
"pattern" GstVideoTestSrcPattern : Read / Write "timestamp-offset" gint64 : Read / Write "is-live" gboolean : Read / Write
The videotestsrc element is used to produce test video data in a wide variaty of formats. The video test data produced can be controlled with the "pattern" property.
gst-launch -v videotestsrc pattern=snow ! ximagesink
Shows random noise in an X window.
typedef enum {
  GST_VIDEO_TEST_SRC_SMPTE,
  GST_VIDEO_TEST_SRC_SNOW,
  GST_VIDEO_TEST_SRC_BLACK,
  GST_VIDEO_TEST_SRC_WHITE,
  GST_VIDEO_TEST_SRC_RED,
  GST_VIDEO_TEST_SRC_GREEN,
  GST_VIDEO_TEST_SRC_BLUE,
  GST_VIDEO_TEST_SRC_CHECKERS1,
  GST_VIDEO_TEST_SRC_CHECKERS2,
  GST_VIDEO_TEST_SRC_CHECKERS4,
  GST_VIDEO_TEST_SRC_CHECKERS8,
  GST_VIDEO_TEST_SRC_CIRCULAR
} GstVideoTestSrcPattern;
The test pattern to produce.
pattern" property"pattern" GstVideoTestSrcPattern : Read / Write
Type of test pattern to generate.
Default value: Random (television snow)
timestamp-offset" property"timestamp-offset" gint64 : Read / Write
An offset added to timestamps set on buffers (in ns).
Default value: 0