[Bug 601631] [regression] DVD forced subtitles no longer displayed

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Sun Apr 12 18:08:42 PDT 2015


https://bugzilla.gnome.org/show_bug.cgi?id=601631

--- Comment #25 from Jan Schmidt <thaytan at noraisin.net> ---
Things are still the same in 1.x, and I still don't know why the Star Wars EP
IV disc behaves that way. It still seems like some subpicture streams on the
disc have forced display commands for Jabba's speech, and others don't.

In Jaunty, libdvdnav used to tell us to activate stream 2 - without setting the
'forced-only' flag, so we should have been displaying *all* subs. In more
recent libdvdnav, it tells us to play stream 0, with the 'forced-only' flag
set... but there's no forced subs in the stream.

I'd suspect something changed in the dvdspu as well that broke forced-display
command handling but I can't see anything like that in the code, and I'd expect
anything that could break that would show up in other ways, since it'd imply
we're walking the subs command chain wrong.

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