copy

Creates a new TagList as a copy of the old this.

The new taglist will have a refcount of 1, owned by the caller, and will be writable as a result.

Note that this function is the semantic equivalent of a gst_tag_list_ref followed by a gst_tag_list_make_writable. If you only want to hold on to a reference to the data, you should use gst_tag_list_ref.

When you are finished with the taglist, call gst_tag_list_unref on it.

Parameters:

this	a TagList.

Returns:

the new TagList