Copyright	Will Thompson and Iñaki García Etxebarria
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
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)
class (ManagedPtrNewtype o, IsDescendantOf VideoOrientation o) => IsVideoOrientation o
videoOrientationFromTag :: (HasCallStack, MonadIO m) => TagList -> m (Bool, VideoOrientationMethod)
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

Instances details

Eq VideoOrientation Source #
Instance details Defined in GI.GstVideo.Interfaces.VideoOrientation Methods (==) :: VideoOrientation -> VideoOrientation -> Bool # (/=) :: VideoOrientation -> VideoOrientation -> Bool #
BoxedPtr VideoOrientation Source #
Instance details Defined in GI.GstVideo.Interfaces.VideoOrientation Methods boxedPtrCopy :: VideoOrientation -> IO VideoOrientation boxedPtrFree :: VideoOrientation -> IO ()
ManagedPtrNewtype VideoOrientation Source #
Instance details Defined in GI.GstVideo.Interfaces.VideoOrientation Methods toManagedPtr :: VideoOrientation -> ManagedPtr VideoOrientation

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

Type class for types which implement VideoOrientation.

Instances

Instances details

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

Methods

Click to display all available methods, including inherited ones

Expand

Methods

None.

Getters

getHcenter, getHflip, getVcenter, getVflip.

Setters

setHcenter, setHflip, setVcenter, setVflip.

fromTag

videoOrientationFromTag Source #

Arguments

:: (HasCallStack, MonadIO m)
=> TagList	`taglist`: A `TagList`
-> m (Bool, VideoOrientationMethod)	Returns: TRUE if there was a valid "image-orientation" tag in the taglist.

Parses the "image-orientation" tag and transforms it into the VideoOrientationMethod enum.

Since: 1.20

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.