Apart from just adding detection of the proper stream type, we also need to only output the first substream (0x71) which contains the core substream. While this does not provide *full* DTS-HD support (since it will miss the complementary substreams), it will still work in the way legacy (non-DTS-HD) bluray players would work. https://bugzilla.gnome.org/show_bug.cgi?id=725563