Copyright	Will Thompson, Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (garetxe@gmail.com)
Safe Haskell	None
Language	Haskell2010

GI.GstVideo.Structs.VideoOverlayComposition

Contents

Exported types
Methods

Description

refsect2 para Functions to create and handle overlay compositions on video buffers. /para para An overlay composition describes one or more overlay rectangles to be blended on top of a video buffer. /para para This API serves two main purposes: itemizedlist listitem it can be used to attach overlay information (subtitles or logos) to non-raw video buffers such as GLVAAPIVDPAU surfaces. The actual blending of the overlay can then be done by e.g. the video sink that processes these non-raw buffers. /listitem listitem it can also be used to blend overlay rectangles on top of raw video buffers, thus consolidating blending functionality for raw video in one place. /listitem Together, this allows existing overlay elements to easily handle raw and non-raw video as input in without major changes (once the overlays have been put into a #GstOverlayComposition object anyway) - for raw video the overlay can just use the blending function to blend the data on top of the video, and for surface buffers it can just attach them to the buffer and let the sink render the overlays. /itemizedlist /para /refsect2

Synopsis

Exported types

newtype VideoOverlayComposition Source

Constructors

VideoOverlayComposition (ForeignPtr VideoOverlayComposition)

Instances

BoxedObject VideoOverlayComposition Source
Methods boxedType :: VideoOverlayComposition -> IO GType
((~) * info (ResolveVideoOverlayCompositionMethod t VideoOverlayComposition), MethodInfo * info VideoOverlayComposition p) => IsLabel t (VideoOverlayComposition -> p) Source
Methods fromLabel :: Proxy# Symbol t -> VideoOverlayComposition -> p
((~) * info (ResolveVideoOverlayCompositionMethod t VideoOverlayComposition), MethodInfo * info VideoOverlayComposition p) => IsLabelProxy t (VideoOverlayComposition -> p) Source
Methods fromLabelProxy :: Proxy Symbol t -> VideoOverlayComposition -> p
((~) (TYPE Lifted) signature (m Word32), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionNRectanglesMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionNRectanglesMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (m VideoOverlayComposition), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionMakeWritableMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionMakeWritableMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (m Word32), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionGetSeqnumMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionGetSeqnumMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (Word32 -> m VideoOverlayRectangle), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionGetRectangleMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionGetRectangleMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (m VideoOverlayComposition), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionCopyMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionCopyMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (VideoFrame -> m Bool), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionBlendMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionBlendMethodInfo VideoOverlayComposition -> signature -> s
((~) (TYPE Lifted) signature (VideoOverlayRectangle -> m ()), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionAddRectangleMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionAddRectangleMethodInfo VideoOverlayComposition -> signature -> s

noVideoOverlayComposition :: Maybe VideoOverlayComposition Source

Methods

videoOverlayCompositionAddRectangle

data VideoOverlayCompositionAddRectangleMethodInfo Source

Instances

((~) (TYPE Lifted) signature (VideoOverlayRectangle -> m ()), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionAddRectangleMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionAddRectangleMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionAddRectangle :: MonadIO m => VideoOverlayComposition -> VideoOverlayRectangle -> m () Source

videoOverlayCompositionBlend

data VideoOverlayCompositionBlendMethodInfo Source

Instances

((~) (TYPE Lifted) signature (VideoFrame -> m Bool), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionBlendMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionBlendMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionBlend :: MonadIO m => VideoOverlayComposition -> VideoFrame -> m Bool Source

videoOverlayCompositionCopy

data VideoOverlayCompositionCopyMethodInfo Source

Instances

((~) (TYPE Lifted) signature (m VideoOverlayComposition), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionCopyMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionCopyMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionCopy :: MonadIO m => VideoOverlayComposition -> m VideoOverlayComposition Source

videoOverlayCompositionGetRectangle

data VideoOverlayCompositionGetRectangleMethodInfo Source

Instances

((~) (TYPE Lifted) signature (Word32 -> m VideoOverlayRectangle), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionGetRectangleMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionGetRectangleMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionGetRectangle :: MonadIO m => VideoOverlayComposition -> Word32 -> m VideoOverlayRectangle Source

videoOverlayCompositionGetSeqnum

data VideoOverlayCompositionGetSeqnumMethodInfo Source

Instances

((~) (TYPE Lifted) signature (m Word32), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionGetSeqnumMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionGetSeqnumMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionGetSeqnum :: MonadIO m => VideoOverlayComposition -> m Word32 Source

videoOverlayCompositionMakeWritable

data VideoOverlayCompositionMakeWritableMethodInfo Source

Instances

((~) (TYPE Lifted) signature (m VideoOverlayComposition), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionMakeWritableMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionMakeWritableMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionMakeWritable :: MonadIO m => VideoOverlayComposition -> m VideoOverlayComposition Source

videoOverlayCompositionNRectangles

data VideoOverlayCompositionNRectanglesMethodInfo Source

Instances

((~) (TYPE Lifted) signature (m Word32), MonadIO m) => MethodInfo (TYPE Lifted) VideoOverlayCompositionNRectanglesMethodInfo VideoOverlayComposition signature Source
Methods overloadedMethod :: MethodProxy VideoOverlayCompositionNRectanglesMethodInfo VideoOverlayComposition -> signature -> s

videoOverlayCompositionNRectangles :: MonadIO m => VideoOverlayComposition -> m Word32 Source

videoOverlayCompositionNew

videoOverlayCompositionNew :: MonadIO m => VideoOverlayRectangle -> m VideoOverlayComposition Source