videotestsrc

videotestsrc — Creates a test video stream

Synopsis

                    GstVideoTestSrc;
enum                GstVideoTestSrcPattern;
enum                GstVideoTestSrcColorSpec;

Object Hierarchy

  GObject
   +----GstObject
         +----GstElement
               +----GstBaseSrc
                     +----GstPushSrc
                           +----GstVideoTestSrc

Properties

  "pattern"                  GstVideoTestSrcPattern  : Read / Write
  "timestamp-offset"         gint64                : Read / Write
  "is-live"                  gboolean              : Read / Write
  "peer-alloc"               gboolean              : Read / Write
  "colorspec"                GstVideoTestSrcColorSpec  : Read / Write
  "k0"                       gint                  : Read / Write
  "kt"                       gint                  : Read / Write
  "kt2"                      gint                  : Read / Write
  "kx"                       gint                  : Read / Write
  "kx2"                      gint                  : Read / Write
  "kxt"                      gint                  : Read / Write
  "kxy"                      gint                  : Read / Write
  "ky"                       gint                  : Read / Write
  "ky2"                      gint                  : Read / Write
  "kyt"                      gint                  : Read / Write
  "xoffset"                  gint                  : Read / Write
  "yoffset"                  gint                  : Read / Write

Description

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.

Example launch line

gst-launch -v videotestsrc pattern=snow ! ximagesink
Shows random noise in an X window.

Synopsis

Element Information

plugin videotestsrc
author David A. Schleef <ds@schleef.org>
class Source/Video

Element Pads

name src
direction source
presence always
details video/x-raw-yuv, format=(fourcc)YUY2, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)UYVY, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)Y422, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)UYNV, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)YVYU, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)v308, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)AYUV, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)v410, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)v210, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)v216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)IYU2, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)YVU9, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)YUV9, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)YV12, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)I420, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)NV12, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)NV21, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)Y41B, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)Y42B, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)Y444, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-yuv, format=(fourcc)Y800, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-gray, bpp=(int)8, depth=(int)8, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-gray, bpp=(int)16, depth=(int)16, endianness=(int)1234, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)24, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, alpha_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, alpha_mask=(int)-16777216, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)-16777216, green_mask=(int)16711680, blue_mask=(int)65280, alpha_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)32, endianness=(int)4321, depth=(int)32, red_mask=(int)65280, green_mask=(int)16711680, blue_mask=(int)-16777216, alpha_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)24, endianness=(int)4321, depth=(int)24, red_mask=(int)16711680, green_mask=(int)65280, blue_mask=(int)255, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)24, endianness=(int)4321, depth=(int)24, red_mask=(int)255, green_mask=(int)65280, blue_mask=(int)16711680, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)16, endianness=(int)1234, depth=(int)16, red_mask=(int)63488, green_mask=(int)2016, blue_mask=(int)31, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-rgb, bpp=(int)16, endianness=(int)1234, depth=(int)15, red_mask=(int)31744, green_mask=(int)992, blue_mask=(int)31, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
video/x-raw-bayer, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Details

GstVideoTestSrc

typedef struct _GstVideoTestSrc GstVideoTestSrc;

Opaque data structure.

enum GstVideoTestSrcPattern

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,
  GST_VIDEO_TEST_SRC_BLINK,
  GST_VIDEO_TEST_SRC_SMPTE75,
  GST_VIDEO_TEST_SRC_ZONE_PLATE
} GstVideoTestSrcPattern;

The test pattern to produce.

GST_VIDEO_TEST_SRC_SMPTE A standard SMPTE test pattern
GST_VIDEO_TEST_SRC_SNOW Random noise
GST_VIDEO_TEST_SRC_BLACK A black image
GST_VIDEO_TEST_SRC_WHITE A white image
GST_VIDEO_TEST_SRC_RED A red image
GST_VIDEO_TEST_SRC_GREEN A green image
GST_VIDEO_TEST_SRC_BLUE A blue image
GST_VIDEO_TEST_SRC_CHECKERS1 Checkers pattern (1px)
GST_VIDEO_TEST_SRC_CHECKERS2 Checkers pattern (2px)
GST_VIDEO_TEST_SRC_CHECKERS4 Checkers pattern (4px)
GST_VIDEO_TEST_SRC_CHECKERS8 Checkers pattern (8px)
GST_VIDEO_TEST_SRC_CIRCULAR Circular pattern
GST_VIDEO_TEST_SRC_BLINK Alternate between black and white
GST_VIDEO_TEST_SRC_SMPTE75 SMPTE test pattern (75% color bars)
GST_VIDEO_TEST_SRC_ZONE_PLATE Zone plate

enum GstVideoTestSrcColorSpec

typedef enum {
  GST_VIDEO_TEST_SRC_BT601,
  GST_VIDEO_TEST_SRC_BT709
} GstVideoTestSrcColorSpec;

The color specification to use.

GST_VIDEO_TEST_SRC_BT601 ITU-R Rec. BT.601
GST_VIDEO_TEST_SRC_BT709 ITU-R Rec. BT.601

Property Details

The "pattern" property

  "pattern"                  GstVideoTestSrcPattern  : Read / Write

Type of test pattern to generate.

Default value: SMPTE 100% color bars

The "timestamp-offset" property

  "timestamp-offset"         gint64                : Read / Write

An offset added to timestamps set on buffers (in ns).

Default value: 0

The "is-live" property

  "is-live"                  gboolean              : Read / Write

Whether to act as a live source.

Default value: FALSE

The "peer-alloc" property

  "peer-alloc"               gboolean              : Read / Write

Ask the peer to allocate an output buffer.

Default value: TRUE

The "colorspec" property

  "colorspec"                GstVideoTestSrcColorSpec  : Read / Write

Generate video in the given color specification.

Default value: ITU-R Rec. BT.601

The "k0" property

  "k0"                       gint                  : Read / Write

Zoneplate zero order phase, for generating plain fields or phase offsets.

Default value: 0

The "kt" property

  "kt"                       gint                  : Read / Write

Zoneplate 1st order t phase, for generating phase rotation as a function of time.

Default value: 0

The "kt2" property

  "kt2"                      gint                  : Read / Write

Zoneplate 2nd order t phase, t*t/256 cycles per picture.

Default value: 0

The "kx" property

  "kx"                       gint                  : Read / Write

Zoneplate 1st order x phase, for generating constant horizontal frequencies.

Default value: 0

The "kx2" property

  "kx2"                      gint                  : Read / Write

Zoneplate 2nd order x phase, normalised to kx2/256 cycles per horizontal pixel at width/2 from origin.

Default value: 0

The "kxt" property

  "kxt"                      gint                  : Read / Write

Zoneplate x*t product phase, normalised to kxy/256 cycles per vertical pixel at width/2 from origin.

Default value: 0

The "kxy" property

  "kxy"                      gint                  : Read / Write

Zoneplate x*t product phase.

Default value: 0

The "ky" property

  "ky"                       gint                  : Read / Write

Zoneplate 1st order y phase, for generating contant vertical frequencies.

Default value: 0

The "ky2" property

  "ky2"                      gint                  : Read / Write

Zoneplate 2nd order y phase, normailsed to ky2/256 cycles per vertical pixel at height/2 from origin.

Default value: 0

The "kyt" property

  "kyt"                      gint                  : Read / Write

Zoneplate y*t product phase.

Default value: 0

The "xoffset" property

  "xoffset"                  gint                  : Read / Write

Zoneplate 2nd order products x offset.

Default value: 0

The "yoffset" property

  "yoffset"                  gint                  : Read / Write

Zoneplate 2nd order products y offset.

Default value: 0

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