GI.Gst.Structs.ParentBufferMeta

The ParentBufferMeta is a Meta which can be attached to a Buffer to hold a reference to another buffer that is only released when the child Buffer is released.

Typically, ParentBufferMeta is used when the child buffer is directly using the Memory of the parent buffer, and wants to prevent the parent buffer from being returned to a buffer pool until the Memory is available for re-use.

Exported types

newtype ParentBufferMeta

Constructors

ParentBufferMeta (ManagedPtr ParentBufferMeta)

Instances

WrappedPtr ParentBufferMeta

Methods

wrappedPtrCalloc :: IO (Ptr ParentBufferMeta)

wrappedPtrCopy :: ParentBufferMeta -> IO ParentBufferMeta

wrappedPtrFree :: Maybe (FunPtr (Ptr ParentBufferMeta -> IO ()))

(~) AttrOpTag tag AttrSet => Constructible ParentBufferMeta tag

Methods

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

newZeroParentBufferMeta :: MonadIO m => m ParentBufferMeta

Construct a ParentBufferMeta struct initialized to zero.

noParentBufferMeta :: Maybe ParentBufferMeta

Methods

getInfo

parentBufferMetaGetInfo

Arguments

:: (HasCallStack, MonadIO m)

=> m MetaInfo

Returns: The MetaInfo

Get the global MetaInfo describing the ParentBufferMeta meta.

Since: 1.6

Properties

buffer

clearParentBufferMetaBuffer :: MonadIO m => ParentBufferMeta -> m ()

getParentBufferMetaBuffer :: MonadIO m => ParentBufferMeta -> m (Maybe Buffer)

setParentBufferMetaBuffer :: MonadIO m => ParentBufferMeta -> Ptr Buffer -> m ()

parent

getParentBufferMetaParent :: MonadIO m => ParentBufferMeta -> m Meta