vlc.VideoUnlockCb
=================

.. py:class:: vlc.VideoUnlockCb

   Bases: :py:obj:`ctypes.c_void_p`


   Callback prototype to unlock a *picture* buffer.

   When the video frame decoding is complete, the unlock callback is invoked.
   This callback might not be needed at all. It is only an indication that the
   application can now read the pixel values if it needs to.

   .. note:: A *picture* buffer is unlocked after the *picture* is decoded,
       but before the *picture* is displayed.

   :param opaque: private pointer as passed to :func:`libvlc_video_set_callbacks` [IN].
   :param picture: private pointer returned from the :class:`VideoLockCb`.
       callback [IN].
   :param planes: pixel planes as defined by the :class:`VideoLockCb`.
       callback (this parameter is only for convenience) [IN].

   Initialize self.  See help(type(self)) for accurate signature.