mencoder segv processing a avi file

[Fernando Fernandez]

Binary package hint: mplayer

The command "mencoder k7-25.avi -oac copy -ovc copy -o k7-25-b.avi" ends with SIGSEGV.

Before it crashed, the output was:
== OUTPUT START ==
MEncoder UNKNOWN-4.4.1 (C) 2000-2009 MPlayer Team
success: format: 0 data: 0x0 - 0x24d0d800
AVI file format detected.
AVI: ODML: Building ODML index (1 superindexchunks).
AVI_NI: No video stream found.
libavformat file format detected.
[avi @ 0x1e422d0]non-interleaved AVI
[lavf] Video stream found, -vid 0
[lavf] Audio stream found, -aid 1
VIDEO: [dvsd] 720x576 0bpp 25.000 fps 28800.0 kbps (3515.6 kbyte/s)
[V] filefmt:35 fourcc:0x64737664 size:720x576 fps:25.000 ftime:=0.0400
videocodec: framecopy (720x576 0bpp fourcc=64737664)
audiocodec: framecopy (format=1 chans=2 rate=48000 bits=16 B/s=192000 sample-0)
Segmentation fault
== OUTPUT END ==

I don't know if it's useful, but strace'ing it gave the following:
== STRACE START ==
write(1, "[lavf] Video stream found, -vid "..., 34[lavf] Video stream found, -vid 0
) = 34
write(1, "[lavf] Audio stream found, -aid "..., 34[lavf] Audio stream found, -aid 1
) = 34
write(1, "VIDEO: [dvsd] 720x576 0bpp 2"..., 73VIDEO: [dvsd] 720x576 0bpp 25.000 fps 28800.0 kbps (3515.6 kbyte/s)
) = 73
write(1, "[V] filefmt:35 fourcc:0x6473766"..., 75[V] filefmt:35 fourcc:0x64737664 size:720x576 fps:25.000 ftime:=0.0400
) = 75
open("k7-25-b.avi", O_RDWR|O_CREAT|O_TRUNC, 0666) = 4
lseek(4, 0, SEEK_END) = 0
lseek(4, 0, SEEK_SET) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0b4f5b3000
write(1, "videocodec: framecopy (720x576 0"..., 53videocodec: framecopy (720x576 0bpp fourcc=64737664)
) = 53
write(1, "audiocodec: framecopy (format=1 "..., 80audiocodec: framecopy (format=1 chans=2 rate=48000 bits=16 B/s=192000 sample-0)
) = 80
rt_sigaction(SIGINT, {0x446a70, [INT], SA_RESTORER|SA_RESTART, 0x7f0b545e6530}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x446a70, [QUIT], SA_RESTORER|SA_RESTART, 0x7f0b545e6530}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0x446a70, [TERM], SA_RESTORER|SA_RESTART, 0x7f0b545e6530}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGHUP, {0x446a70, [HUP], SA_RESTORER|SA_RESTART, 0x7f0b545e6530}, {SIG_DFL, [], 0}, 8) = 0
rt_sigaction(SIGPIPE, {0x446a70, [PIPE], SA_RESTORER|SA_RESTART, 0x7f0b545e6530}, {SIG_DFL, [], 0}, 8) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
== STRACE END ==

System info:
ferdez@vmax:/tmp$ lsb_release -rd
Description: Ubuntu 9.10
Release: 9.10
ferdez@vmax:/tmp$ apt-cache policy mencoder
mencoder:
  Installed: 2:1.0~rc3+svn20090426-1ubuntu10.1
  Candidate: 2:1.0~rc3+svn20090426-1ubuntu10.1
  Version table:
 *** 2:1.0~rc3+svn20090426-1ubuntu10.1 0
        500 http://pt.archive.ubuntu.com karmic-updates/multiverse Packages
        100 /var/lib/dpkg/status
     2:1.0~rc3+svn20090426-1ubuntu10 0
        500 http://pt.archive.ubuntu.com karmic/multiverse Packages

ProblemType: Bug
Architecture: amd64
CheckboxSubmission: 5252472d3a42581679507f969c5981a7
CheckboxSystem: b1865df84255b8716d3bcc269ff410d1
Date: Tue Feb 16 16:02:33 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
NonfreeKernelModules: nvidia
Package: mencoder 2:1.0~rc3+svn20090426-1ubuntu10.1
ProcEnviron:
 LANGUAGE=en_GB.UTF-8
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
RelatedPackageVersions:
 libavcodec52 N/A
 libavcodec-extra-52 4:0.5+svn20090706-2ubuntu3
SourcePackage: mplayer
Uname: Linux 2.6.31-19-generic x86_64
UserConf:
 # Write your default config options here!

 [gnome-mplayer]
 msglevel=all=5
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.31-19-generic

[Reinhard Tartler (siretart)]

please attach k7-25.avi, or at least parts of it to this bug. we need to be able to reproduce this crash ourselves in order to verify a potential fix.

[Fernando Fernandez (ferdez)]

I attach the first 5 meg of the file. The result is the same.

[Reinhard Tartler (siretart)]

seems to be fixed in lucid then, as it is unreproducable.

does the segfault happen with ffplay or ffmpeg as well?

[Fernando Fernandez (ferdez)]

No. Both ffplay and ffmpeg work well with this file.

[Launchpad Janitor (janitor)]

[Expired for mplayer (Ubuntu) because there has been no activity for 60 days.]