Bug#699215: vlc: segfaults while opening certain videos.

[David Smith]

> See http://wiki.debian.org/HowToGetABacktrace for more information how
> to get nicer backtraces.
>
> I notice that you have configured VAAPI in the vlc preferences. Does
> the problem still appear if you disable hardware acceleration via
> VAAPI?
No, the problem stops when disabling hardware acceleration via VAAPI.   
I do get some strange output to the console though.

]
[h264 @ 0x1197de0] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0xfa6020] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x10b0b80] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x1197de0] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0xfa6020] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x1091320] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x10b0b80] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x1197de0] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0xfa6020] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x1091320] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one
[h264 @ 0x10b0b80] number of reference frames (0+3) exceeds max (1; 
probably corrupt input), discarding one

(continue x100 every 10 seconds or so while the video plays backs).

> Can you reproduce the crashes with the avplay utility found in the
> libav-tools package?
>
>
No.  Although I'm not sure how to enable VAAPI in avplay if it's not 
already enabled by default.  I tried running the video in avplay and it 
ran with no problems and no error reports to the console like vlc does 
above.  I even tried the "verbose" log output of avplay and didn't get 
anything like I get in the console when VLC tries to play the file.