That's assuming any version of libdvdnav was able to open the disc. ;) Steve Dibb replied off-list and asked me for the IFO files which I have provided. When I opened the disc in DVD Shrink (a Windows program, I'm running in a VM) it was able to parse and see all the titles and menus, but it must have just copied them into the destination unmodified because it still crashes (at least VLC for Windows does which I assume uses libdvdnav inside). On Sat, Aug 23, 2014 at 11:35 PM, Roger Pack <rogerdpack2@gmail.com> wrote:
You could still try rolling back and see which version [or commit?] broke it...maybe?
On Fri, Aug 22, 2014 at 9:25 AM, Michael Russo <greatquux@gmail.com> wrote:
The 3 patches to libdvdnav in the thread http://comments.gmane.org/gmane.comp.video.dvdnav.general/1658 did apply successfully, but I still crash at the same place. None of the debug messages mentioned in the patch appear anywhere in the trace output. I also deleted ~/.dvdcss but that didn't help.
There's also a patch to livdvdread in the first post of that thread, but I didn't apply that as I'm seeing the crash in libdvdnav. If you think I should try that also, let me know, and if you want to arrange some way for me to get you the ISO file I will. Also going to try using DVD Shrink 3.2 in a Windows VM to shrink to a DVD5 and see if that rewrites the nav code enough to make this playable.
On Mon, Aug 18, 2014 at 9:53 AM, Roger Pack <rogerdpack2@gmail.com> wrote:
Let me know if the patch doesn't apply. Also could try deleting your ~/.dvdcss and ~/.dvdnav folders one at a time, see if that helps [?]
On Sun, Aug 17, 2014 at 9:16 AM, Michael Russo <greatquux@gmail.com> wrote:
Not sure if the patch would help or if it's applicable to version 5 or has to be rebased. But I know this DVD was extracted perfectly and plays on DVD players. Same issue playing directly from DVD drive in VLC (which uses libdvdnav of course). Main title plays in mplayer. I'll see if I can get a Windows system or VM to play it there or maybe use a DVD shrinker on it (but that will probably just copy the titles/menu/nav stuff anyway).
On Sat, Aug 16, 2014 at 1:35 PM, Roger Pack <rogerdpack2@gmail.com> wrote:
... #13549 0x00007ffff7bd0675 in play_PGC (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:83 #13550 0x00007ffff7bd07e0 in play_PGC_post (vm=vm@entry =0x7fffb4056e10) at src/vm/play.c:153 #13551 0x00007ffff7bd0542 in play_PG (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:168 #13552 0x00007ffff7bd0675 in play_PGC (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:83 #13553 0x00007ffff7bd07e0 in play_PGC_post (vm=vm@entry =0x7fffb4056e10) at src/vm/play.c:153 #13554 0x00007ffff7bd0542 in play_PG (vm=vm@entrye=0x7fffb4056e10) at src/vm/play.c:168 #13555 0x00007ffff7bd0675 in play_PGC (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:83 #13556 0x00007ffff7bd07e0 in play_PGC_post (vm=vm@entry =0x7fffb4056e10) at src/vm/play.c:153 #13557 0x00007ffff7bd0542 in play_PG (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:168 #13558 0x00007ffff7bd0675 in play_PGC (vm=vm@entry=0x7fffb4056e10) at src/vm/play.c:83 ...
looks like it's definitely infinitely recursing to me.
I seem to recall some ancient patch that mentions ref counts something, wonder if that's related...
http://lists.mplayerhq.hu/pipermail/dvdnav-discuss/2012-December/001816.html
re-proposed once here http://comments.gmane.org/gmane.comp.video.dvdnav.general/1658
[BTW does that patch have merit, even if unrelated, I wonder?]
On Fri, Aug 15, 2014 at 10:23 AM, Michael Russo < greatquux@gmail.com
wrote:
That did help and I was now able to compile libdvdnav with TRACE defined. I still ran vlc through gdb in order to get a backtrace. There was a LOT of tracing going on, and now the SIGSEGV occurred inside of printf() because it was trying to print out the invalid memory address. Hopefully there's something here you can use to track down what's going on. It's likely some weird form of copy protection.
On Thu, Aug 14, 2014 at 10:50 PM, gnosygnu <gnosygnu@gmail.com> wrote:
> On Thu, Aug 14, 2014 at 9:01 AM, Michael Russo < greatquux@gmail.com> > wrote: > > > I tried to define TRACE in vm.h (uncommenting the line) but I get a > > message about an undefined constant FP_DOMAIN. The compilation > > succeeds without TRACE enabled. I also can't find where this constant > > is defined inside of libdvdnav. Perhaps this is a simple oversight > > related to all the cleanup work that took place in 5.0.0? > > > > > Actually, it was probably related to an earlier commit. See: > >
http://git.videolan.org/?p=libdvdnav.git;a=commitdiff;h=331781f98a8ea6842bee...
> > I updated the constants just now: > >
http://git.videolan.org/?p=libdvdnav.git;a=commitdiff;h=da8a809a069c95487239...
> > I also cleaned up some compiler warnings in my earlier checkin that I > didn't notice before. Sorry about that. > >
http://git.videolan.org/?p=libdvdnav.git;a=commitdiff;h=03cb72be09295686cf1a...
> > Hope this helps. > _______________________________________________ > DVDnav-discuss mailing list > DVDnav-discuss@mplayerhq.hu > https://lists.mplayerhq.hu/mailman/listinfo/dvdnav-discuss >
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