guvcview crashes when starting to record video

[Riccardo Pelizzi]

When i press "capture video" guvcview segfaults. unfortunately it does not produce a crash report even with apport enabled so i don't have a backtrace. I am attaching the console output, hopefully it helps.

Note: this does not seem to be a dup of #655528, i get the bug no matter what codec i choose, and the output seems to be different.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: guvcview 1.4.5-1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic-pae 3.0.4
Uname: Linux 3.0.4-chipmunk i686
NonfreeKernelModules: wl
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 10 17:29:48 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
SourcePackage: guvcview
UpgradeStatus: No upgrade log present (probably fresh install)

[Riccardo Pelizzi (r-pelizzi)]

this is what i get with gdb guvcview, not helpful either:

#0 0x080680a1 in ?? ()
#1 0x0805e2a5 in ?? ()
#2 0xb79825f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3 0xb7810d31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#4 0xb6ba90ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Salih EMIN (salih-emin)]

I don't know if I should file a new bug report but I want to add that it crashes also when I press "Capture Image"

[Riccardo Pelizzi (r-pelizzi)]

capture image works for me

[Brittany Dunlap (xdunlapx)]

Neither capture image or video works for me. It segfaults on either. I've attached my own terminal output of running guvcview and the segfault at the end. I hope we can figure this out. I want to be able to record video with audio that actually sync's up as cheese doesn't work right in that regard.

[titaniumtux (titaniumtux)]

Capture video makes Guvcview crash for me too, however capture image does not crash Guvcview for me. Anyone know of any work-arounds or is anyone able to use video capture in Guvcview in Ubuntu 11.10 without it crashing?

[caixamagica (caixa-magica)]

Same here, video capture (not image capture) makes Guvcview crash on Lubuntu 11.10. Changing the video codec doesn't make any difference.

Terminal output, in the end says:

[mp2 @ 0xb6720140] codec type or id mismatches
could not open codec
segmentation fault

[Rino (rino-sapere)]

Guvcview crashs again.......

[Rino (rino-sapere)]

When I start capturing video Guvcview goes crash !

[giosoftware (giosoftware)]

The same for me.
When I start to capture video a get this error:
[mp2 @ 0x175e7a0] codec type or id mismatches
could not open codec
Segmentation fault

And program crashes :(

[Bruce Crowther (bwucie)]

I get the same problem, with this message in a terminal:

"Closing audio stream...
[libvo_aacenc @ 0x7f8058002000] codec type or id mismatches
could not open codec
[xcb] Unknown request in queue while dequeuing
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
guvcview: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed."

But! If I use the "PCM -uncompressed (16 Bit)" sound setting, then it's fine.

So we have yet another Ubuntu regression, because in the past this program has worked fine with either MP2 or MP3.

[clockworkpc (clockworkpc)]

Using PCM -uncompressed (16 Bit) only half works, because it seems to drop half the audio frames and consequently half the video frames in order to compensate:

cpcmonster@cpcmonster-EX58-UD3R:~$ guvcview
guvcview 1.4.5
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib audio/pcm_bluetooth.c:1613:(audioservice_expect) BT_GET_CAPABILITIES failed : Input/output error(5)
ALSA lib pcm_dmix.c:957:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
video device: /dev/video0
Init. Microsoft® LifeCam HD-3000 (location: usb-0000:00:1a.7-6)
{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
{ discrete: width = 640, height = 480 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
 Time interval between frame: 1/10, 2/15,
{ discrete: width = 960, height = 544 }
 Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
 Time interval between frame: 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 424, height = 240 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 320, height = 240 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
 Time interval between frame: 1/15, 1/10, 2/15,
{ discrete: width = 176, height = 144 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 160, height = 120 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 800 }
 Time interval between frame: 1/10,
{ pixelformat = 'MJPG', description = 'MJPEG' }
{ discrete: width = 640, height = 480 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 1280, height = 720 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 960, height = 544 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 448 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 640, height = 360 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 800, height = 600 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 416, height = 240 }
 Time interval between frame: 1/30, 1/20, 1/15, 1/10, 2/15,
{ discrete: width = 352, height = 288 }
 Ti...

[Mark Fraser (launchpad-mfraz)]

My daughter is having this problem in Kubuntu 11.04 and it seems to be affecting Fedora users too http://forums.fedoraforum.org/showthread.php?t=267553

[Mark Fraser (launchpad-mfraz)]

Using version 1.5.1 from Paulo Assis' PPA pj-assis/ppa seems to fix the crashing problem.

[Bruce Crowther (bwucie)]

Certainly does: good call, Mark, and nice verks, Paulo.

[dplmartin (dominic-martin)]

Just to confirm, I'm on Ubuntu 11.10. I installed GUVCView and as soon as I clicked the button to record, it crashed out on me. I went to the website refered to above - https://launchpad.net/~pj-assis/+archive/ppa . I installed the PPA according to the instructions on the site. Then I used ubuntu update manager to look for new updates. It found one at the bottom of the list for GUVCView. After the update, I could record view just fine.

[Tomislav (hefest)]

Crashes for me, too, both on image and video acquisition.

Ubuntu 11.10, guvcview 1.4.5 apt-get installed 5 minutes ago from default repositories.

[Tomislav (hefest)]

Managed to take a picture by switching camera output from MJPEG to RGB3, video still broken.

I believe I have also discovered at least one packaging bug: installing guvcview did not install ffmpeg (although it supposedly depends on it) so I installed it myself. Didn't help video recording, though. :\

[Bruce Crowther (bwucie)]

Try the 1.5.1 version as in answer #15 in this thread, Tomislav.

[Filipo Rviz (filipo747)]

Version 1.5.2 works for me.
But I still having black screen on preview window.

[Chris Gagnon (chris.gagnon)]

Marked confirmed this is still a bug

apt-cache policy guvcview:
  Installed: 1.4.5-1ubuntu1
  Candidate: 1.4.5-1ubuntu1
  Version table:
 *** 1.4.5-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

[Mörgæs (moergaes)]

Have you tried 1.5.3?

[Dirk Wallenstein (halsmit)]

It works when installing ogmrip (found when looking for for lavc)

[Mörgæs (moergaes)]

With the release of Ubuntu 12.04, Guvcview is now in version 1.5.3 where the bug is fixed.

If a similar bug appears in 1.5.3 please open a new bug report.

[Patrick Schmalstig (xanaftp)]

I am experiencing the bug in 1.5.3 on Kubuntu 11.10

If I use ANY OTHER SETTING other than the strictly default settings for guvcview of 320X240 image res, codec MJPG compressed, format AVI, Audio format PCM 16 bit... I either get:

guvcview: relocation error: guvcview: symbol avcodec_open2, version LIBAVCODEC_53 not defined in file libavcodec.so.53 with link time reference

OR

Floating Point Exception

I do not wish to use the default settings as... on my computer... the codec causes the video and audio to be out of sync.