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<title>glcolorbalance: GStreamer Base Plugins 1.0 Plugins Reference Manual</title>
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<link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Plugins Reference Manual">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Top |
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Description |
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Object Hierarchy |
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Implemented Interfaces |
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Properties
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glcolorbalance
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glcolorbalance
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Properties
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gdouble
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brightness
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Read / Write
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gdouble
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contrast
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Read / Write
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gdouble
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hue
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Read / Write
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gdouble
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saturation
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Read / Write
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Types and Values
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struct
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GstGLColorBalance
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Object Hierarchy
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GObject
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╰── GInitiallyUnowned
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╰── GstObject
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╰── GstElement
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╰── GstBaseTransform
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╰── GstGLBaseFilter
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╰── GstGLFilter
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╰── GstGLColorBalance
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Implemented Interfaces
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GstGLColorBalance implements
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GstColorBalance.
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Description
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Adjusts brightness, contrast, hue, saturation on a video stream.
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Example launch line
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1
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gst-launch-1.0 videotestsrc ! glupload ! glcolorbalance saturation=0.0 ! glcolorconvert ! gldownload ! ximagesink
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This pipeline converts the image to black and white by setting the
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saturation to 0.0.
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Synopsis
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Element Information
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plugin
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opengl
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author
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Matthew Waters <matthew@centricular.com>
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class
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Filter/Effect/Video
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Element Pads
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name
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sink
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direction
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sink
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presence
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always
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details
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video/x-raw(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes }
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video/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes }
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name
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src
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direction
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source
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presence
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always
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details
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video/x-raw(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes }
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video/x-raw(memory:GLMemory, meta:GstVideoOverlayComposition), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string){ 2D, external-oes }
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Functions
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Types and Values
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struct GstGLColorBalance
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struct GstGLColorBalance;
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Opaque data structure.
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Property Details
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The “brightness” property
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“brightness” gdouble
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brightness.
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Flags: Read / Write
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Allowed values: [-1,1]
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Default value: 0
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The “contrast” property
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“contrast” gdouble
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contrast.
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Flags: Read / Write
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Allowed values: [0,2]
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Default value: 1
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The “hue” property
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“hue” gdouble
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hue.
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Flags: Read / Write
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Allowed values: [-1,1]
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Default value: 0
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The “saturation” property
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“saturation” gdouble
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saturation.
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Flags: Read / Write
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Allowed values: [0,2]
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Default value: 1
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