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[Bug 489748] Re: After a clean install, OpenShot hangs on preview, must reinstall to "recover"....

 

Andy,

Thanks for your helpful suggestions!!!

The new experimental PPA (OpenShot 0.9.54) does not hang while
previewing any of the files I tried.  I tried .avi, .mpg and .MTS;  all
but the .MTS file played okay in the preview window.  The .MTS file
stuttered, probably because 1 2.3GHz CPU core is not powerful enough to
play a 1920x1080p without video acceleration.  Using 'melt' to play the
file stuttered in the same way.

ffplay (ffmpg)(and melt) were not installed by Ubuntu or OpenShot.  melt
installed okay, but ffplay (ffmpeg) failed during the installation.

-- 
After a clean install, OpenShot hangs on preview, must reinstall to "recover"....
https://bugs.launchpad.net/bugs/489748
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Status in OpenShot Video Editor: New

Bug description:
This may be related to or possibly the same as some other bugs reported, but my symptoms seem more severe; so I opened a new one.

System:
Quad-Core HP with 8G memory
750G Disk;  ATI Radeon HD 3200 Graphics

Clean install of Ubuntu 9.10 64bit  Karmic

Installed OpenShot via PPA
deb http://ppa.launchpad.net/openshot.developers/ppa/ubuntu karmic main
deb-src http://ppa.launchpad.net/openshot.developers/ppa/ubuntu karmic main

- OR- 
Installed OpenShot via DEB

I did NOT try the Source Code Tarball  (...long weekend nearly gone...)

I also tried the binary ATI driver in addition to the default open source ATI driver.

Everything seems to install perfectly.  Trouble occurs after importing a video file and previewing (no scrolling of the preview location bar required).  After a few seconds,  one of the CPU cores goes to 100% and OpenShot is no longer responsive.  Sometimes OpenShot can be closed; often times it must be killed.

Rerunning, OpenShot will open and hang again in a few seconds.

The 1st file I imported was from my Cannon HF200 (.MTS) which was about 2G in size; since that is what I wanted to edit.  I went through this 3 or 4 times with various reinstalls of the OS, OpenShot or both with the results always the same.  Switching video drivers made no difference.

I did not try one of Jonathan's sample files;  I will try that next time I reload from scratch.

The last time I tried a simpler .avi file and got the same results.

I would have tried more variations if it didn't take so long to reload everything from scratch. 

If I remove and re-install,  OpenShot hangs seconds after being opened.
(apt-get remove openshot; apt-get install openshot)

If you can tell me how to get this cleaned up without reinstalling from scratch, I can do more to isolate the problem.

It seems other folks are using OpenShot to actually edit videos; this is amazing to me after my experience.  This has been going on since Wednesday, if you include some Ubuntu weirdness that I had to deal with.

Also,  I ran OpenShot from the command line, but there were no messages printed on the console.  I searched the file system, but could not find any log files that related to OpenShot.



References