Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria (inaki@blueleaf.cc)
Safe Haskell	None
Language	Haskell2010

GI.GstVideo.Interfaces.VideoOrientation

Contents

Exported types
Methods

Description

The interface allows unified access to control flipping and autocenter operation of video-sources or operators.

Synopsis

newtype VideoOrientation = VideoOrientation (ManagedPtr VideoOrientation)
noVideoOrientation :: Maybe VideoOrientation
class (ManagedPtrNewtype o, IsDescendantOf VideoOrientation o) => IsVideoOrientation o
videoOrientationGetHcenter :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> m (Bool, Int32)
videoOrientationGetHflip :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> m (Bool, Bool)
videoOrientationGetVcenter :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> m (Bool, Int32)
videoOrientationGetVflip :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> m (Bool, Bool)
videoOrientationSetHcenter :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> Int32 -> m Bool
videoOrientationSetHflip :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> Bool -> m Bool
videoOrientationSetVcenter :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> Int32 -> m Bool
videoOrientationSetVflip :: (HasCallStack, MonadIO m, IsVideoOrientation a) => a -> Bool -> m Bool

Exported types

newtype VideoOrientation Source #

Memory-managed wrapper type.

Constructors

VideoOrientation (ManagedPtr VideoOrientation)

Instances

WrappedPtr VideoOrientation Source #
Instance details Defined in GI.GstVideo.Interfaces.VideoOrientation Methods wrappedPtrCalloc :: IO (Ptr VideoOrientation) # wrappedPtrCopy :: VideoOrientation -> IO VideoOrientation # wrappedPtrFree :: Maybe (GDestroyNotify VideoOrientation) #

noVideoOrientation :: Maybe VideoOrientation Source #

A convenience alias for Nothing :: Maybe VideoOrientation.

class (ManagedPtrNewtype o, IsDescendantOf VideoOrientation o) => IsVideoOrientation o Source #

Type class for types which implement VideoOrientation.

Instances

(ManagedPtrNewtype o, IsDescendantOf VideoOrientation o) => IsVideoOrientation o Source #
Instance details Defined in GI.GstVideo.Interfaces.VideoOrientation

Methods

getHcenter

videoOrientationGetHcenter Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> m (Bool, Int32)	Returns: `True` in case the element supports centering

Get the horizontal centering offset from the given object.

getHflip

videoOrientationGetHflip Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> m (Bool, Bool)	Returns: `True` in case the element supports flipping

Get the horizontal flipping state (True for flipped) from the given object.

getVcenter

videoOrientationGetVcenter Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> m (Bool, Int32)	Returns: `True` in case the element supports centering

Get the vertical centering offset from the given object.

getVflip

videoOrientationGetVflip Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> m (Bool, Bool)	Returns: `True` in case the element supports flipping

Get the vertical flipping state (True for flipped) from the given object.

setHcenter

videoOrientationSetHcenter Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> Int32	`center`: centering offset
-> m Bool	Returns: `True` in case the element supports centering

Set the horizontal centering offset for the given object.

setHflip

videoOrientationSetHflip Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> Bool	`flip`: use flipping
-> m Bool	Returns: `True` in case the element supports flipping

Set the horizontal flipping state (True for flipped) for the given object.

setVcenter

videoOrientationSetVcenter Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> Int32	`center`: centering offset
-> m Bool	Returns: `True` in case the element supports centering

Set the vertical centering offset for the given object.

setVflip

videoOrientationSetVflip Source #

Arguments

:: (HasCallStack, MonadIO m, IsVideoOrientation a)
=> a	`videoOrientation`: `VideoOrientation` interface of a `Element`
-> Bool	`flip`: use flipping
-> m Bool	Returns: `True` in case the element supports flipping

Set the vertical flipping state (True for flipped) for the given object.