black screen in video preview

Hello cedd-750

Please will you supply the following information:

1) which version of the installer did you use? (1.03 or 1.04)
2) what choices did you select on install?
3) what version of OpenShot did you install?
4) what Linux distribution and version are you running?
5) when the installation finished, did you run the tests advised, and what were the results of those tests?

6) How are you importing clips? try using the + button to select clips to import

Many thanks, Helen McCall

Hello Helen,
1) it's 1.04 version
2) I tested the 3 choices and actually i have selected 1
3) OpenShot 0.9.5
4) Ubuntu 9.04 - Jaunty (64Bits)
    Kernel 2.6.28-13
    Memories 4Gi
    Intel Core Duo E8500
    Nvidia Geforce 9600 GT
5) Yes, after my installation, i run the tests.
     Ok for ffmpeg result except the last line (see below)
            FFplay version git-a228298, Copyright (c) 2003-2009 Fabrice Bellard, et al.
            configuration: --enable-gpl --enable-nonfree --enable-shared --enable-pthreads --enable-libx264 --enable-libfaac
            --enable-libtheora --extra-cflags=-fPIC --extra-cflags=-DPIC
            libavutil 50. 3. 0 / 50. 3. 0
            libavcodec 52.32. 0 / 52.32. 0
            libavformat 52.36. 0 / 52.36. 0
            libavdevice 52. 2. 0 / 52. 2. 0
            libswscale 0. 7. 1 / 0. 7. 1
            built on Jul 18 2009 10:46:58, gcc: 4.3.3
            PATH_TO_A_VIDEO: no such file or directory

     Ok to copy command in python shell
     Ok for the visualisation of "Bleu OK screen"
     and no error result after open openshot by shell windows.
6) Yes, by slide/paste and by + button
If is necessary i can paste the result of test shell windows but it's long.
Thanks a lot.

Just a information.
When i do a double click on video or jpeg (in the project files or in the timeline) , this one is visible in the preview windows.
But the preview stay black with the sound when i move the cursor of the timeline or when i play the timeline with the play button in the preview windows.
that all !

Interesting... it sounds like MLT and FFmpeg are installed correctly, If the preview (i.e. double clicking a file) plays the video and audio. Sorry if this is a dumb question, but did you drag and drop your file (from the project tree) onto your timeline? Does a clip appear on the timeline? Have you tried a few different types of videos (or even images)?

Thanks,
-Jonathan

yes jonathan,
Drag and drop tree --> timeline
add Transitions / title / ac3 sound
But visualization and export = black screen ?

After one other test i have an important information about this problem.
This problem disappear if the video is paste on the timeline after a number of minutes.
This time is function of total duration of the timeline.
example: total time = 20 minutes it's ok after the tenth minutes.
it's not a law, but visibly it's ok after the middle of total time in the timeline.

P.S: The effect of translations are not visible on preview, but it's probably another problem.

Wow, what a strange problem. I have not seen this before. There will soon be a new version of the build wizard, and some .DEB installers available soon. Hopefully this will fix it for you. In the next few days, check back on the blog: www.OpenShotVideo.com. I will be posting an article about the new .DEB installers. Thanks!

Ok, but i wait the .DEB to click 'this solved my problem"

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

This is now fixed: bug report #403730.

The .deb solved this problem.