[Mplayer-users] another broken one

[Juergen Keil]

> I've tried to reproduce the "signal 11" problem with the sig11broken.avi
> file you transfered to the incoming directory on the ftp server, but I don't
> think I succeeded.  I've tried it on Linux & Solaris.  I get a signal 11,
> indeed; but I get that ~14.4 seconds into the video, and that's apparently
> when the truncated (!) avi file ends.

There's some progress now...

It seems the problem is with "-framedrop" vs no framedrop.

I've now seen the following commands crash at 7.4 seconds (the exact position
in the video probably depends on your system's speed) into the video:
 
./mplayer -v -framedrop -vo x11 sig11broken.avi
./mplayer -v -framedrop -vo sdl:x11 sig11broken.avi

(mplayer does *not* crash if I remove the -framedrop option)


% gdb ./mplayer
...
(gdb) run -v -framedrop -vo x11 sig11broken.avi
...
Initial PTS delay: 0.029 sec ->0.067 (bps: 0.019)  audio_delay=0.000
v: audio_delay=0.000  buffer_delay=0.338  a.pts=0.500  v.pts=0.133
A:   7.9 (   7.9)  V:   7.6  A-V:  0.284 ct:  0.088  230  34%  8%  4.3% 0 0
frame drop 1, -0.29
A:   8.0 (   7.9)  V:   7.6  A-V:  0.269 ct:  0.091  231  34%  8%  4.3% 1 0
Program received signal SIGSEGV, Segmentation fault.
0x100116fb in ?? ()
(gdb) x/20i 0x100116c0
0x100116c0:     incl   (%ecx)
0x100116c2:     add    %al,(%eax)
0x100116c4:     mov    %ebx,(%esp,1)
0x100116c7:     and    $0x1ff,%esi
0x100116cd:     mov    0x6e(%esp,1),%cl
0x100116d1:     mov    0x1006fd22(%eax,%edi,1),%bh
0x100116d8:     mov    0x1006ff8b(%eax,%ebp,1),%bl
0x100116df:     add    $0xc,%edx
0x100116e2:     shl    $0x10,%ebx
0x100116e5:     mov    %edx,0x28(%esp,1)
0x100116e9:     mov    0x100701a1(%eax,%esi,1),%bh
0x100116f0:     mov    0x6d(%esp,1),%al
0x100116f4:     mov    0x1006fd1f(%ecx,%edi,1),%bl
0x100116fb:     mov    %ebx,0xfffffffc(%edx)		<-----
0x100116fe:     mov    0x1006ff87(%ecx,%ebp,1),%bh
0x10011705:     mov    0x100701a0(%ecx,%esi,1),%bl
0x1001170c:     mov    0x6c(%esp,1),%cl
0x10011710:     shl    $0x10,%ebx
0x10011713:     mov    0x1006fd21(%eax,%edi,1),%bh
0x1001171a:     mov    0x1006ff8b(%eax,%ebp,1),%bl
(gdb) print $edx
$1 = 12
(gdb) x/wx 0xfffffffc+$edx
0x8:    Cannot access memory at address 0x8



It seems that, as soon as MPlayer decides to drop a frame...

                                                                        v
                                                                        v
A:   7.9 (   7.9)  V:   7.6  A-V:  0.284 ct:  0.088  230  34%  8%  4.3% 0 0
frame drop 1, -0.29
A:   8.0 (   7.9)  V:   7.6  A-V:  0.269 ct:  0.091  231  34%  8%  4.3% 1 0
                                                                        ^
                                                                        ^
... it crashes inside the win32 DLL.

--
Jürgen Keil          		jk at tools.de
Tools GmbH			+49 (228) 9858011


_______________________________________________
Mplayer-users mailing list
Mplayer-users at lists.sourceforge.net
http://lists.sourceforge.net/lists/listinfo/mplayer-users