shapewipe

shapewipe — Adds a shape wipe transition to a video stream

Properties

gfloat border Read / Write
gfloat position Read / Write

Types and Values

struct GstShapeWipe

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstShapeWipe

Description

The shapewipe element provides custom transitions on video streams based on a grayscale bitmap. The state of the transition can be controlled by the position property and an optional blended border can be added by the border property.

Transition bitmaps can be downloaded from the

Cinelerra transition

page.

Example launch line

1
gst-launch-1.0 -v videotestsrc ! video/x-raw,format=AYUV,width=640,height=480 ! shapewipe position=0.5 name=shape ! videomixer name=mixer ! videoconvert ! autovideosink     filesrc location=mask.png ! typefind ! decodebin ! videoconvert ! videoscale ! queue ! shape.mask_sink    videotestsrc pattern=snow ! video/x-raw,format=AYUV,width=640,height=480 ! queue ! mixer.
This pipeline adds the transition from mask.png with position 0.5 to an SMPTE test screen and snow.

Synopsis

Element Information

plugin

shapewipe

author

Sebastian Dröge <sebastian.droege@collabora.co.uk>

class

Filter/Editor/Video

Element Pads

name

mask_sink

direction

sink

presence

always

details

video/x-raw, format=(string)GRAY8, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)0/1

video/x-raw, format=(string)GRAY16_LE, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)0/1

name

video_sink

direction

sink

presence

always

details

video/x-raw, format=(string){ AYUV, ARGB, BGRA, ABGR, RGBA }, 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){ AYUV, ARGB, BGRA, ABGR, RGBA }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

Functions

Types and Values

struct GstShapeWipe

struct GstShapeWipe;

Property Details

The “border” property

  “border”                   gfloat

Border of the mask.

Flags: Read / Write

Allowed values: [0,1]

Default value: 0


The “position” property

  “position”                 gfloat

Position of the mask.

Flags: Read / Write

Allowed values: [0,1]

Default value: 0