[Ffmpeg-devel] WMV3 segfaults in vc1_decode_intra_block()

Kostya kostya.shishkov
Tue Dec 12 06:39:41 CET 2006

On Mon, Dec 11, 2006 at 01:08:22PM +0200, Nikns Siankin wrote:
> Sample: http://pazeme.lv/nokia_n90.wmv
> # uname -a
> OpenBSD obsd.my.domain 4.0 GENERIC#690 amd64
> # gdb ffmpeg_g
> GNU gdb 6.3   
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "amd64-unknown-openbsd4.0"...(no debugging symbols found)
> (gdb) r -i /tmp/nokia_n90.wmv /tmp/nokia.avi
> Starting program: /usr/ports/graphics/ffmpeg/w-ffmpeg-20061211/ffmpeg-cvs-20061211/ffmpeg_g -i 
> /tmp/nokia_n90.wmv /tm  p/nokia.avi
> FFmpeg version SVN-r7274, Copyright (c) 2000-2006 Fabrice Bellard, et al.
>   configuration:  --enable-shared --cc=cc --disable-opts --enable-a52 --enable-pp --enable-gpl 
> --enable-pthreads --di  sable-debug --enable-faac --enable-faad
> --enable-mp3lame --enable-libogg --enable-vorbis --extra-ldflags=-lm -L/usr/l  ocal/lib 
> --extra-cflags=-I/usr/local/include
>   libavutil version: 49.1.0
>   libavcodec version: 51.26.0
>   libavformat version: 51.6.0
>   built on Dec 11 2006 12:48:03, gcc: 3.3.5 (propolice)
> Compiler did not align stack variables, libavcodec has been misscompiled
> and will possible be very slow or may crash, this is not a bug in the   
> application but in the compiler
> so reporting it anywhere but to the compiler maintainers is senseless!

Anyone, does bugreporting guide has anywhere written that user MUST read
what FFmpeg outputs.

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