[ pd-gem-Bugs-3402822 ] pix_film (gmerlin) crashes with animated gifs - GEM-dev

12 Jan 2012


      Bugs item #3402822, was opened at 2011-09-01 13:39
Message generated for change (Settings changed) made by zmoelnig
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Category: Pixes (pix_ objects)
Group: None
...
Status: Closed
Resolution: Fixed
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: pix_film (gmerlin) crashes with animated gifs
Initial Comment:
when trying to open an animated gif (as attached) with [pix_film], Gem crashes.
the problem might be within gmerlin-avdecoder:
<snap>
verbose(6): [pix_film]: trying to add 'gmerlin' as backend
[pix_film]: gmerlin support
saved to: /home/zmoelnig/src/git/Gem/Gem/filmer.pd
[pix_film]: opening /home/zmoelnig/src/git/Gem/Gem/animated.gif with format 1908
verbose(5): [pix_film:demuxer] Detected GIF format
Program received signal SIGSEGV, Segmentation fault.
0xb6ef847a in gavl_frame_table_num_frames () from /usr/lib/libgavl.so.1
</snap>
<bt>
(gdb) bt
#0  0xb6ef847a in gavl_frame_table_num_frames () from /usr/lib/libgavl.so.1
#1  0x081c3820 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
</bt>
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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2011-10-27 08:58
Message:
i checked with gmerlin-avdecoder upstream, and indeed it was missing
"seeking" for animated gifs.
i submitted a fix for the problem, which (once it's accepted) will
magically make animated gifs work properly in Gem.
i think i can therefore close this ticket.
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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2011-09-01 23:44
Message:
indeed there was a problem in Gem.
unfortunately gifs still cannot be played in random access mode.
(and in threaded decoding they usually will be decoded before all the
frames have been displayed)
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Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2011-09-01 13:40
Message:
but then: gmerlin_play does _not_ crash on the same file.
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