[MEncoder-users] Help with Floating Point Exception Error

[jer]

Here is the backtrace and gdb output for the Floating Point Exception


mythtv at animus:~$ gdb
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This GDB was configured as "i486-linux-gnu".
(gdb) file /usr/local/bin/mencoder
Reading symbols from /usr/local/bin/mencoder...(no debugging symbols 
found)...done.
Using host libthread_db library "/lib/tls/libthread_db.so.1".
(gdb) run tv:// -tv 
driver=v4l2:input=0:norm=ntsc:channel=20:chanlist=us-cable:width=320:height=240:outfmt=yuy2:device=/dev/video0:adevice=/dev/dsp:audiorate=32000:forceaudio:forcechan=1:buffersize=64 
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1200:keyint=30 -oac mp3lame 
-lameopts br=128:cbr:mode=3 -ffourcc divx -vf scale -endpos 15 -o 
/home/mythtv/06.avi

Starting program: /usr/local/bin/mencoder tv:// -tv 
driver=v4l2:input=0:norm=ntsc:channel=20:chanlist=us-cable:width=320:height=240:outfmt=yuy2:device=/dev/video0:adevice=/dev/dsp:audiorate=32000:forceaudio:forcechan=1:buffersize=64 
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1200:keyint=30 -oac mp3lame 
-lameopts br=128:cbr:mode=3 -ffourcc divx -vf scale -endpos 15 -o 
/home/mythtv/06.avi
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1214667072 (LWP 7155)]
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
---Type <return> to continue, or q <return> to quit---
(no debugging symbols found)
MEncoder dev-SVN-r18794-4.0.4 (C) 2000-2006 MPlayer Team
CPU:               Intel(R) Pentium(R) 4 CPU 2.40GHz (Family: 15, Model: 
2, Stepping: 7)
CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2

success: format: 9  data: 0x0 - 0x0
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski at zpr.uni-koeln.de>
 comment: first try, more to come ;-)
Selected device: Hauppauge WinTV PVR-150
 Tuner cap: STEREO LANG1 LANG2
 Tuner rxs: MONO LANG2
 Capabilites:  video capture  VBI capture device  tuner  audio  read/write
 supported norms: 0 = PAL-BGH; 1 = PAL-DK; 2 = PAL-I; 3 = PAL-M; 4 = 
PAL-N; 5 = PAL-Nc; 6 = SECAM-BGH; 7 = SECAM-DK; 8 = SECAM-L; 9 = 
SECAM-L'; 10 = NTSC-M; 11 = NTSC-J; 12 = NTSC-K;
 inputs: 0 = Tuner 1; 1 = S-Video 1; 2 = Composite 1; 3 = S-Video 2; 4 = 
Composite 2;
 Current input: 0
 Current format: unknown (0x4745504d)
v4l2: current audio mode is : STEREO
Selected channel: 20 (freq: 157.250)
Audio block size too low, setting to 16352!

Program received signal SIGFPE, Arithmetic exception.
[Switching to Thread -1214667072 (LWP 7155)]
0x081278b1 in tvi_init_dummy ()
(gdb) where
#0  0x081278b1 in tvi_init_dummy ()
#1  0x0875c428 in ?? ()
#2  0x0875c280 in ?? ()
#3  0x0812a83b in tvi_init_v4l2 ()
#4  0x00000002 in ?? ()
#5  0x40390000 in ?? ()
#6  0x00000000 in ?? ()
(gdb)



Dieter wrote:
>> Anything I try with tv:// gives me a Floating Exception Error, but 
>> /dev/video0 works just fine, it just doesn't tune to the channel.  I 
>> cannot find ANYTHING on google about this!!!
>>     
>
> Compile with -g.
> Run under a debugger such as gdb.
> Get a backtrace.
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