perspective

perspective

Properties

GValueArray * matrix Read / Write

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBaseTransform
                    ╰── GstVideoFilter
                        ╰── GstGeometricTransform
                            ╰── GstPerspective

Description

The perspective element applies a 2D perspective transform.

Example launch line

1
gst-launch-1.0 -v videotestsrc ! perspective ! videoconvert ! autovideosink

Synopsis

Element Information

plugin

geometrictransform

author

Antonio Ospite <ospite@studenti.unina.it>

class

Transform/Effect/Video

Element Pads

name

sink

direction

sink

presence

always

details

video/x-raw, format=(string){ ARGB, BGR, BGRA, BGRx, RGB, RGBA, RGBx, AYUV, xBGR, xRGB, GRAY8, GRAY16_BE, GRAY16_LE }, 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){ ARGB, BGR, BGRA, BGRx, RGB, RGBA, RGBx, AYUV, xBGR, xRGB, GRAY8, GRAY16_BE, GRAY16_LE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstPerspective

struct GstPerspective;

Property Details

The “matrix” property

  “matrix”                   GValueArray *

Matrix of dimension 3x3 to use in the 2D transform, passed as an array of 9 elements in row-major order.

Flags: Read / Write

See Also

geometrictransform