[VCDImager Bugs/Devel] 7.11pre1 segfaults

[Philipp Zabel]

Hi!

I just tried to make an SVCD out of two MPEG streams encoded/multiplexed with
mjpegtool's mpeg2enc/mplex and today's CVS version of vcdimager. I ran
$ vcdimager --type=svcd 2a_.mpg 2b_.mpg
and it segfaulted after scanning the second stream (gdb session / backtrace
below)
The same things happen if I try to process only one of the streams.
To me it seems that some pbc list pointer points into the void during
finalization, but I don't understand how this happens. Can I do anything
to help resolve this? Thank you!

gdb session / backtrace:

$ gdb vcdimager
GNU gdb 5.0
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GDB is free software, covered by the GNU General Public License, and you are
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Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu"...
(gdb) run --type=svcd 2a_.mpg 2b_.mpg -v
Starting program: /home/lesath/bin/vcdimager --type=svcd 2a_.mpg 2b_.mpg -v
++ WARN: initializing libvcd 0.7.11pre1 [linux-gnu/i686]
++ WARN:  
++ WARN:  this is the UNSTABLE development branch!
++ WARN:  use only if you know what you are doing
++ WARN:  see http://www.hvrlab.org/~hvr/vcdimager/ for more information
++ WARN:  
--DEBUG: changed volume label to `VIDEOCD'
--DEBUG: changed application id to `'
--DEBUG: changed album id to `'
--DEBUG: changed volume count to 1
--DEBUG: changed volume number to 1
--DEBUG: changing 'update scan offsets' to 0
   INFO: scanning mpeg sequence item #0 for scanpoints...
--DEBUG: pts start offset 0.502589 (max pts = 1289.710589)
--DEBUG: playing time 1289.208000
   INFO: scanning mpeg sequence item #1 for scanpoints...
--DEBUG: pts start offset 0.502589 (max pts = 1406.326589)
--DEBUG: playing time 1405.824000

Program received signal SIGSEGV, Segmentation fault.
_vcd_list_begin (list=0x4c47d) at vcd_data_structures.c:219
219       return list->begin;
(gdb) bt
#0  _vcd_list_begin (list=0x4c47d) at vcd_data_structures.c:219
#1  0x8059458 in _vcd_pbc_finalize (obj=0x80643d8) at vcd_pbc.c:833
#2  0x804c403 in _finalize_vcd_iso_track (obj=0x80643d8) at vcd.c:1402
#3  0x804db60 in vcd_obj_begin_output (obj=0x80643d8) at vcd.c:2104
#4  0x80497a2 in main (argc=5, argv=0xbffffb24) at vcdimager.c:451
#5  0x4006d5bf in __libc_start_main () from /lib/libc.so.6
(gdb) 

grusz
pHilipp