Sorry, I think you misunderstood - the point is to check your *source* files with ffplay/melt. As the ffmpeg libraries & MLT provide the format & seeking support for OpenShot, we need to identify if they can handle the files properly first (the seeking is important as you are trimming your file, rather than just simply playing it back). If they have a problem with your source files, then OpenShot will too.
The latest MLT is available in a PPA, ppa:sunab/kdenlive-release. This will only work with OpenShot 1.4.3 & above. -- You received this bug notification because you are a member of OpenShot Bugs, which is subscribed to OpenShot Video Editor. https://bugs.launchpad.net/bugs/1067328 Title: previewing effect of video edits causes Openshot + Desktop to freeze Status in OpenShot Video Editor: Incomplete Bug description: Openshot 1.4.3 installed via PPA under Ubuntu 11.10 as per guide on Openshot website. Initial messages on start-up: charlie@fiona-ubuLenovo-3000-G530:~$ openshot ./Pictures/100CASIO/CIMG1113.AVI &[1] 5498 charlie@fiona-ubuLenovo-3000-G530:~$ ------------------------- ERROR 1 ------------------------------ Failed to import 'from openshot import main' Error Message: cannot import name main ---------------------------------------------------------------- -------------------------------- OpenShot (version 1.4.3) -------------------------------- Process no longer exists: 5295. Creating new pid lock file. Adding files to the watch queue: /home/charlie/Pictures/100CASIO/CIMG1113.AVI Detecting formats, codecs, and filters... : : etc... application seems to load / run. Use the Resize tool to shorten the AVI file loaded above (size is approx 13MBytes, generated by a Casio ZX-60 camera); resizing is successful and modified AVI file can be saved as mp4, replayed with eg Movie. BUT: if I use the 'preview' button to check result of the re-size before saving/exporting the video file, the Openshot GUI locks up. Moving mouse to left of screen to 'activate' 'Dash' launcher has no effect; Alt-Tab has no effect (there are other apps running). Ctrl-Alt-F2 DOES bring up a console where root can login; Python/Openshot are NOT taking an excessive amount of CPU (virtually none..). kill -9 'pid of Openshot' restores normal system function. To manage notifications about this bug go to: https://bugs.launchpad.net/openshot/+bug/1067328/+subscriptions -- Mailing list: https://launchpad.net/~openshot.bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~openshot.bugs More help : https://help.launchpad.net/ListHelp

