How to report bugs?

First read Appendix D, and other docs. If your problem isn't known or isn't solved by our instructions, then report the bug:

Where?

Subscribe to the mplayer-users mailing list:
http://mplayerhq.hu/mailman/listinfo/mplayer-users
and send your bugreport to:
mplayer-users@mplayerhq.hu
We won't CC: so please subscribe!!!

Don't send bugreports private, directly to author's address!!! We are working together on code, so everyone is interested in it. BTW many times other users know the solution (system config probs, bad drivers etc), even when we think it's a bug in our code. The language of this list is ENGLISH!

Please describe your problem in details, examples etc, and don't forget to include these:

What?

1. The system info what we always want:

linux distribution
examples:
- RedHat 7.1
- Slackware 7.0 + devel packs from 7.1 ...
kernel version:
uname -a
libc version:
ls -l /lib/libc[.-]*
X version:
X -version
gcc and ld version:
gcc -v ld -v
binutils version:
as --version

2. Hardware & drivers:

CPU info:
cat /proc/cpuinfo
video card manufacturer and model
examples:
- ASUS V3800U chip: nVidia TNT2 Ultra pro 32MB SDRAM
- Matrox G400 DH 32MB SGRAM
video driver type&version
examples:
- X built-in driver
- nvidia 0.9.623
- Utah-GLX CVS 2001-02-17
- DRI from X 4.0.3
sound card type & driver
examples:
- Creative SBLive! Gold with OSS driver from oss.creative.com
- Creative SB16 with OSS drivers of kernel
- GUS PnP with ALSA OSS emulation
if you are unsure, attach output of lspci -v

For compiling problems/errors

3. output of configure/make:

make distclean
./configure & > config.log
./make & > make.log

4. these files:

config.h
config.mak
libvo/config.mak

For playback problems:

3. Output of mplayer at verbose level 1 (-v)

mplayer -v [options] filename &> mplayer.log

4. If the problem is specific to one or a few files, then please upload that file to:

ftp://mplayerhq.hu/MPlayer/incoming/

Also upload a small .txt file with the same name as your file, describing the problem!
Usually first 1-5 MB of the file is enough to reproduce the problem, but first you should try it:

dd if=yourfile of=smallfile bs=1k count=1024

(it will cut first 1MB of 'yourfile' and save to 'smallfile') Then try again on this small file, and if bug still exists then it's enough to upload this small file.
NEVER send such files via mail! Upload it, and send only the path/filename of the file on the FTP. If the file is accessible on the net, then sending the _exact_ URL is enough!

5. For crashes (segfault, SIGILL, signal 4 etc):

If you have coredump of the crash, see 5.a, else see 5.b:

5.a: Please print us coredump (if it was created).

Howto: please create following command file:

disass $eip-32 $eip+32 printf "eax=%08lX\n",$eax printf "ebx=%08lX\n",$ebx printf "ecx=%08lX\n",$ecx printf "edx=%08lX\n",$edx printf "esp=%08lX\n",$esp printf "ebp=%08lX\n",$ebp printf "edi=%08lX\n",$edi printf "esi=%08lX\n",$esi

Then simply execute following command line:

gdb mplayer --core=core -batch --command=command_file >mplayer.bug

5.b.: run MPlayer in gdb:

Re-compile mplayer with debugging code enabled:
./configure --enable-debug
make

[at root/user shell prompt:]
    # gdb mplayer
[at gdb prompt:]
    > run -v [options-to-mplayer] filename
... (wait until it will crash)
    > bt
    > disass $eip-32 $eip+32
Send us the full output of the above things!

In general:

If something is big (logs etc) then it's better to upload to the ftp (gzipped), and include only path/filename in the bugreport!