parse_tag

Extracts the tag list from the GstMessage.

The tag list returned in the output argument is a copy; the caller must free it when done.

Typical usage of this function might be:

  ...
  switch (GST_MESSAGE_TYPE (msg)) {
    case GST_MESSAGE_TAG: {
      GstTagList *tags = NULL;

      gst_message_parse_tag (msg, &tags);
      g_print ("Got tags from element %s\n", GST_OBJECT_NAME (msg->src));
      handle_tags (tags);
      gst_tag_list_unref (tags);
      break;
    }
    ...
  }
  ...

MT safe.

Parameters:

this	A valid Message of type GST_MESSAGE_TAG.
tag_list	return location for the tag-list.