:right-sidebar: True

MetaInfo
===================================================================

.. currentmodule:: gi.repository.Gst





.. class:: MetaInfo(*args, **kwargs)
   :no-contents-entry:






The :obj:`~gi.repository.Gst.MetaInfo` provides information about a specific metadata
structure.




Methods
-------

.. rst-class:: interim-class

.. class:: MetaInfo
   :no-index:


   .. method:: is_custom() -> bool

      


      .. versionadded:: 1.20








   .. method:: register() -> ~gi.repository.Gst.MetaInfo

      Registers a new meta.

      Use the structure returned by :func:`~gi.repository.Gst.MetaInfo.new`, it consumes it and the
      structure shouldnt be used after. The one returned by the function can be
      kept.


      .. versionadded:: 1.24


















Fields
------

.. rst-class:: interim-class

.. class:: MetaInfo
   :no-index:
   

   .. attribute:: api

      Tag identifying the metadata structure and api






   .. attribute:: clear_func

      Function for clearing the metadata, or :const:`None` if not supported by this
      meta. This is called by the buffer pool when a buffer is returned for
      pooled metas.


      .. versionadded:: 1.24





   .. attribute:: deserialize_func

      Function for deserializing the metadata, or :const:`None` if not supported by this
      meta.


      .. versionadded:: 1.24





   .. attribute:: free_func

      Function for freeing the metadata






   .. attribute:: init_func

      Function for initializing the metadata






   .. attribute:: serialize_func

      Function for serializing the metadata, or :const:`None` if not supported by this
      meta.


      .. versionadded:: 1.24





   .. attribute:: size

      Size of the metadata






   .. attribute:: transform_func

      Function for transforming the metadata






   .. attribute:: type

      Type identifying the implementor of the api