TGstStateChange

type TGstStateChange = (

  GST_STATE_CHANGE_NULL_TO_READY = Ord(GST_STATE_NULL) shl 3 or Ord(GST_STATE_READY),

  GST_STATE_CHANGE_READY_TO_PAUSED = Ord(GST_STATE_READY) shl 3 or Ord(GST_STATE_PAUSED),

  GST_STATE_CHANGE_PAUSED_TO_PLAYING = ord(GST_STATE_PAUSED) shl 3 or Ord(GST_STATE_PLAYING),

  GST_STATE_CHANGE_PLAYING_TO_PAUSED = ord(GST_STATE_PLAYING) shl 3 or Ord(GST_STATE_PAUSED),

  GST_STATE_CHANGE_PAUSED_TO_READY = ord(GST_STATE_PAUSED) shl 3 or Ord(GST_STATE_READY),

  GST_STATE_CHANGE_READY_TO_NULL = ord(GST_STATE_READY) shl 3 or Ord(GST_STATE_NULL),

  GST_STATE_CHANGE_NULL_TO_NULL = ord(GST_STATE_NULL) shl 3 or Ord(GST_STATE_NULL),

  GST_STATE_CHANGE_READY_TO_READY = ord(GST_STATE_READY) shl 3 or Ord(GST_STATE_READY),

  GST_STATE_CHANGE_PAUSED_TO_PAUSED = ord(GST_STATE_PAUSED) shl 3 or Ord(GST_STATE_PAUSED),

  GST_STATE_CHANGE_PLAYING_TO_PLAYING = ord(GST_STATE_PLAYING) shl 3 or Ord(GST_STATE_PLAYING)

);