videotestsrc

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseSrc
                    ╰──GstPushSrc
                        ╰──videotestsrc

Factory details

src

video/x-raw:
         format: { A444_16LE, A444_16BE, Y416_LE, AYUV64, RGBA64_LE, ARGB64, ARGB64_LE, BGRA64_LE, ABGR64_LE, Y416_BE, RGBA64_BE, ARGB64_BE, BGRA64_BE, ABGR64_BE, A422_16LE, A422_16BE, A420_16LE, A420_16BE, A444_12LE, GBRA_12LE, A444_12BE, GBRA_12BE, Y412_LE, Y412_BE, A422_12LE, A422_12BE, A420_12LE, A420_12BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, BGR10A2_LE, RGB10A2_LE, Y410, A444, GBRA, AYUV, VUYA, RGBA, RBGA, ARGB, BGRA, ABGR, A422, A420, AV12, Y444_16LE, GBR_16LE, Y444_16BE, GBR_16BE, Y216_LE, Y216_BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, UYVP, v210, I420_10LE, I420_10BE, P010_10LE, NV12_10LE40, NV12_10LE32, P010_10BE, MT2110R, MT2110T, NV12_10BE_8L128, NV12_10LE40_4L4, Y444, BGRP, GBR, RGBP, NV24, v308, IYU2, RGBx, xRGB, BGRx, xBGR, RGB, BGR, Y42B, NV16, NV61, YUY2, YVYU, UYVY, VYUY, I420, YV12, NV12, NV21, NV12_16L32S, NV12_32L32, NV12_4L4, NV12_64Z32, NV12_8L128, Y41B, IYU1, YUV9, YVU9, BGR16, RGB16, BGR15, RGB15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE16, GRAY10_LE32, GRAY8 }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 multiview-mode: { (string)mono, (string)left, (string)right }
video/x-bayer:
         format: { bggr, rggb, grbg, gbrg, bggr10le, rggb10le, grbg10le, gbrg10le, bggr10be, rggb10be, grbg10be, gbrg10be, bggr12le, rggb12le, grbg12le, gbrg12le, bggr12be, rggb12be, grbg12be, gbrg12be, bggr14le, rggb14le, grbg14le, gbrg14le, bggr14be, rggb14be, grbg14be, gbrg14be, bggr16le, rggb16le, grbg16le, gbrg16le, bggr16be, rggb16be, grbg16be, gbrg16be }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 multiview-mode: { (string)mono, (string)left, (string)right }

animation-mode

“animation-mode” GstVideoTestSrcAnimationMode *

For pattern=ball, which counter defines the position of the ball.

Flags : Read / Write

Default value : frames (0)

background-color

“background-color” guint

Color to use for background color of some patterns. Default is black (0xff000000).

Flags : Read / Write

Default value : -16777216

flip

“flip” gboolean

For pattern=ball, invert colors every second.

Flags : Read / Write

Default value : false

foreground-color

“foreground-color” guint

Color to use for solid-color pattern and foreground color of other patterns. Default is white (0xffffffff).

Flags : Read / Write

Default value : -1

horizontal-speed

“horizontal-speed” gint

Scroll image number of pixels per frame (positive is scroll to the left)

Flags : Read / Write

Default value : 0

is-live

“is-live” gboolean

Whether to act as a live source

Flags : Read / Write

Default value : false

k0

“k0” gint

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

Flags : Read / Write

Default value : 0

kt

“kt” gint

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

Flags : Read / Write

Default value : 0

kt2

“kt2” gint

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

Flags : Read / Write

Default value : 0

kx

“kx” gint

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

Flags : Read / Write

Default value : 0

kx2

“kx2” gint

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

Flags : Read / Write

Default value : 0

kxt

“kxt” gint

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

Flags : Read / Write

Default value : 0

kxy

“kxy” gint

Zoneplate x*y product phase

Flags : Read / Write

Default value : 0

ky

“ky” gint

Zoneplate 1st order y phase, for generating content vertical frequencies

Flags : Read / Write

Default value : 0

ky2

“ky2” gint

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

Flags : Read / Write

Default value : 0

kyt

“kyt” gint

Zoneplate y*t product phase

Flags : Read / Write

Default value : 0

motion

“motion” GstVideoTestSrcMotionType *

For pattern=ball, what motion the ball does

Flags : Read / Write

Default value : wavy (0)

pattern

“pattern” GstVideoTestSrcPattern *

Type of test pattern to generate

Flags : Read / Write

Default value : smpte (0)

timestamp-offset

“timestamp-offset” gint64

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

Flags : Read / Write

Default value : 0

xoffset

“xoffset” gint

Zoneplate 2nd order products x offset

Flags : Read / Write

Default value : 0

yoffset

“yoffset” gint

Zoneplate 2nd order products y offset

Flags : Read / Write

Default value : 0

GstVideoTestSrcAnimationMode

GstVideoTestSrcMotionType

GstVideoTestSrcPattern

The test pattern to produce.

The Gamut pattern creates a checkerboard pattern of colors at the edge of the YCbCr gamut and nearby colors that are out of gamut. The pattern is divided into 4 regions: black, white, red, and blue. After conversion to RGB, the out-of-gamut colors should be converted to the same value as their in-gamut neighbors. If the checkerboard pattern is still visible after conversion, this indicates a faulty conversion. Image manipulation, such as adjusting contrast or brightness, can also cause the pattern to be visible.

The Zone Plate pattern is based on BBC R&D Report 1978/23, and can be used to test spatial frequency response of a system. This pattern generator is controlled by the xoffset and yoffset parameters and also by all the parameters starting with 'k'. The default parameters produce a grey pattern. Try 'videotestsrc pattern=zone-plate kx2=20 ky2=20 kt=1' to produce something interesting.