xine-lib and libdvdnav

Hi,


I've just been reminded that xine-lib contains its own private copy of libdvdav; this copy doesn't support the latest version of libdvdcss and  so causes xine's DVD playback to fail with this error:
libdvdread: Missing symbols in libdvdcss.so.2, this shouldn't happen ! 


The easiest solution is to compile xine-lib "--with-external-dvdnav", of course. But it made me wonder - why does xine-lib contain its own copy of libdvdnav in the first place? Has this libdvdnav been modified for some reason? And if so, why weren't these changes pushed upstream?

The internal dvdnav can only use libdvdcss <= 1.2.13, and also seems to contain a "crash" bug when the dvdnav plugin is closed that is caused by freeing an invalid pointer. (This crash also happens when I use libdvdcss 1.2.13 with Fedora 21/22's external libdvdnav, but vanishes when I upgrade to libdvdcss 1.3).

Any thoughts, anyone? My opinion is that we delete the internal libdvdnav and require it as an external dependency instead.


Cheers,
Chris

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