GI.Gst.Structs.CustomMeta

Extra custom metadata. The structure field is the same as returned by customMetaGetStructure.

Since 1.24 it can be serialized using metaSerialize and metaDeserialize, but only if the Structure does not contain any fields that cannot be serialized, see SerializeFlagsStrict.

Since: 1.20

Exported types

newtype CustomMeta

Memory-managed wrapper type.

Constructors

CustomMeta (ManagedPtr CustomMeta)

Instances

Eq CustomMeta

Defined in GI.Gst.Structs.CustomMeta

Methods

(==) :: CustomMeta -> CustomMeta -> Bool

(/=) :: CustomMeta -> CustomMeta -> Bool

BoxedPtr CustomMeta

Defined in GI.Gst.Structs.CustomMeta

Methods

boxedPtrCopy :: CustomMeta -> IO CustomMeta

boxedPtrFree :: CustomMeta -> IO ()

CallocPtr CustomMeta

Defined in GI.Gst.Structs.CustomMeta

Methods

boxedPtrCalloc :: IO (Ptr CustomMeta)

ManagedPtrNewtype CustomMeta

Defined in GI.Gst.Structs.CustomMeta

Methods

toManagedPtr :: CustomMeta -> ManagedPtr CustomMeta

tag ~ 'AttrSet => Constructible CustomMeta tag

Defined in GI.Gst.Structs.CustomMeta

Methods

new :: MonadIO m => (ManagedPtr CustomMeta -> CustomMeta) -> [AttrOp CustomMeta tag] -> m CustomMeta

newZeroCustomMeta :: MonadIO m => m CustomMeta

Construct a CustomMeta struct initialized to zero.

Methods

Click to display all available methods, including inherited ones

Methods

hasName.

Getters

getStructure.

Setters

None.

getStructure

customMetaGetStructure

Arguments

:: (HasCallStack, MonadIO m)

=> CustomMeta

-> m Structure

Returns: the Structure backing meta

Retrieve the Structure backing a custom meta, the structure's mutability is conditioned to the writability of the Buffer meta is attached to.

Since: 1.20

hasName

customMetaHasName

Arguments

:: (HasCallStack, MonadIO m)

=> CustomMeta

-> Text

-> m Bool

Returns: Whether name is the name of the custom meta

Checks whether the name of the custom meta is name

Since: 1.20

Properties

meta

parent Meta

getCustomMetaMeta :: MonadIO m => CustomMeta -> m Meta

Get the value of the “meta” field. When overloading is enabled, this is equivalent to

get customMeta #meta

structure

Structure containing custom metadata.

Since: 1.24

clearCustomMetaStructure :: MonadIO m => CustomMeta -> m ()

Set the value of the “structure” field to Nothing. When overloading is enabled, this is equivalent to

clear #structure

getCustomMetaStructure :: MonadIO m => CustomMeta -> m (Maybe Structure)

Get the value of the “structure” field. When overloading is enabled, this is equivalent to

get customMeta #structure

setCustomMetaStructure :: MonadIO m => CustomMeta -> Ptr Structure -> m ()

Set the value of the “structure” field. When overloading is enabled, this is equivalent to

set customMeta [ #structure := value ]