shapewipe

shapewipe — Adds a shape wipe transition to a video stream

Synopsis

struct              GstShapeWipe;

Object Hierarchy

  GObject
   +----GInitiallyUnowned
         +----GstObject
               +----GstElement
                     +----GstShapeWipe

Properties

  "border"                   gfloat                : Read / Write
  "position"                 gfloat                : Read / Write

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 ]

Details

struct GstShapeWipe

struct GstShapeWipe;

Property Details

The "border" property

  "border"                   gfloat                : Read / Write

Border of the mask.

Allowed values: [0,1]

Default value: 0

The "position" property

  "position"                 gfloat                : Read / Write

Position of the mask.

Allowed values: [0,1]

Default value: 0

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