OpenShot crashes when I click Play button

[Gašper Sedej]

Hello, guys!

I use Ubuntu 10.04 32bit. Openshot crashes whenever I click on "Play button". Even if timeline is empty.
I tried Ubuntu offical OpenShot, offical Openshot deb and sunab2 repo (for mlt) and always the same error.

I have all depenedency installed.
http://openshotusers.com/forum/viewtopic.php?f=12&t=372

How can I get debug output?
I tried https://answers.launchpad.net/openshot/+faq/1032 but it stops when it say "Successfully imported mlt library" and I can hear much of hard drive noise but nothing happens after some time. There is some error: "find: »/usr/lib/pymodules/python2.6/mlt«: No such file or directory"
Anyway, the debug output is under...

I it might be AV libs - (libavcodec ...). I have Ubuntu restricted extras and Medibntu
libavcodec-extra-52, libavcodec-unstripped-52, kubavdevuce-unstripped52, libavformat-extra-52
all has same version 4:0.5.1-1ubuntu

here is CLI output:
gasper@sirah:~$ openshot

progname=openshot; RGBA=on
--------------------------------
   OpenShot (version 1.1.3)
--------------------------------
Process no longer exists: 12509. Creating new pid lock file.
A new frmMain has been created
state saved
on_frmMain_key_press_event
project modified: Added file
state saved
project modified: Added file
state saved
project modified: Added clip
state saved
on_tlbPlay_clicked called with self.tlbPlay
The program 'openshot' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 28 error_code 8 request_code 133 minor_code 19)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

gasper@sirah:~/Prenosi$ python debug.py
-----------------------------------------------------------
OpenShot Debug File 0.0.2 - 2010-09-05 21:30:33.504936
-----------------------------------------------------------
This file contains a list of installed packages related to OpenShot,
locations of files, and a list of shared libraries used by python-mlt.

-----------------------------------------------------------
Distribution Version Info
-----------------------------------------------------------
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 10.04.1 LTS
Release: 10.04
Codename: lucid

-----------------------------------------------------------
List of Installed Packages
-----------------------------------------------------------
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-=====================================-================================================-============================================
un libmlt1 <none> (no description available)
ii libmlt2 0.5.7+git20100905.a99b5a90-0ubuntu0~sunab~lucid1 multimedia framework (runtime)
ii openshot 1.1.3-1 Create and edit videos and movies
ii python-mlt2 0.5.4-1 multimedia framework (python bindings)
No packages found matching python-mlt.
No packages found matching openshot-mlt.

-----------------------------------------------------------
Python Path (i.e. sys.path)
-----------------------------------------------------------
/home/gasper/Prenosi
/usr/lib/python2.6
/usr/lib/python2.6/plat-linux2
/usr/lib/python2.6/lib-tk
/usr/lib/python2.6/lib-old
/usr/lib/python2.6/lib-dynload
/usr/lib/python2.6/dist-packages
/usr/lib/python2.6/dist-packages/PIL
/usr/lib/python2.6/dist-packages/gst-0.10
/usr/lib/pymodules/python2.6
/usr/lib/python2.6/dist-packages/gtk-2.0
/usr/lib/pymodules/python2.6/gtk-2.0
/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode

-----------------------------------------------------------
Files in /usr/lib/pymodules/python2.6/mlt (used by python-mlt)
-----------------------------------------------------------
find: »/usr/lib/pymodules/python2.6/mlt«: No such file or directory

-----------------------------------------------------------
Attempt to import mlt (using Python)
-----------------------------------------------------------
Successfully imported mlt library!

^CTraceback (most recent call last):
  File "debug.py", line 72, in <module>
    append_output(str(process.stdout.read(2000)), "Find 'openshot' files & folders")
KeyboardInterrupt

[Andy Finch (fincha)]

Your problem won't be related to the unstripped versions of ffmpeg - it is OK to have them installed.

Try running the following commands in the terminal:

find -name openshot

find -name mlt

locate _mlt.so

Also try playing a video file using the melt command line player, e.g. :

melt videoname.avi

[Gašper Sedej (gsedej)]

Hi!

I solved issue. Problem was with RGBA module that I added for transparent applications. I needed to block Openshot to be rendered transparent, even though it looks really nice!

Here is how to:
Since you would perumably like to continue useing RGBA you need to change a file. There is file in home folder .profile (~/.profile)
you need to add folowing lines:
[code]
export GTK_MODULES=rgba
export GTK_RGBA_APPS=allbut:firefox-bin:gnome-mplayer:totem:openoffice:rhythmbox:chromium-browser:exe:openshot
[/code]
the "exe" is for flash so it needs to be there!

AND LOGOUT! (necesseraly!)

[Gašper Sedej (gsedej)]

Hi Andy!

Thanks for reply but I just solve it. RGBA is still not 100% stable for all apps.

the first two didn't return anything but the mlt.so was 3x fount
gasper@sirah:~$ find -name openshot
gasper@sirah:~$ find -name mlt
gasper@sirah:~$ locate _mlt.so
/usr/lib/pymodules/python2.6/_mlt.so
/usr/lib/pyshared/python2.6/_mlt.so
/usr/lib/python2.5/site-packages/_mlt.so
gasper@sirah:~$

Before I solved issue I could see video if I clicked and moved timeline, but when I tried push "play" button it crashed.

BTW: how to debug python programs? Is it possible or you need to compile debug version?

[Andy Finch (fincha)]

GDB can be used - see here:

http://wiki.python.org/moin/DebuggingWithGdb