Oh my God i have been googling for days. Thanks!
On Nov 25, 2014 11:15 AM, "Olivier Girard" <email address hidden> wrote:

> Hi,
> You should update your mlt version this one that you are using is old
> (0.8.0)
> https://answers.launchpad.net/openshot/+faq/1861
>
> Check to the Debian multimedia repository side
>
> 2014-11-20 5:54 GMT+01:00 Shawn <email address hidden>:
>
> > Public bug reported:
> >
> > When I start a new project and add my video files the preview works.
> >
> > Once I get to maybe 7 or 8 clips added into the timeline, it will no
> > longer show the preview in the preview window (it is black) but the
> > audio plays.
> >
> > I have tried installing from apt and from source.
> >
> > Once the preview stops working in the project it stops for good
> > regardless of reopening the same project file.
> >
> > Debian Squeeze 64-bit
> > Linux ns2.shawnread.ca 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1
> x86_64
> > GNU/Linux
> >
> > apt, debs, and source
> >
> > No LADSPA plugins were found!
> > Check your LADSPA_PATH environment variable.
> > melt 0.8.0
> >
> > ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> > developers
> >   built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
> >   configuration:
> >   libavutil      54. 14.100 / 54. 14.100
> >   libavcodec     56. 12.101 / 56. 12.101
> >   libavformat    56. 14.100 / 56. 14.100
> >   libavdevice    56.  3.100 / 56.  3.100
> >   libavfilter     5.  2.103 /  5.  2.103
> >   libswscale      3.  1.101 /  3.  1.101
> >   libswresample   1.  1.100 /  1.  1.100
> >
> > OpenShot 1.4.4~alpha1
> >
> > Yes both ffplay and melt work video and audio. Video info is:
> >
> > root@ns2:~/Desktop/GUATEMALA/1# ffmpeg -i 00005.MTS
> > ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> > developers
> >   built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
> >   configuration:
> >   libavutil      54. 14.100 / 54. 14.100
> >   libavcodec     56. 12.101 / 56. 12.101
> >   libavformat    56. 14.100 / 56. 14.100
> >   libavdevice    56.  3.100 / 56.  3.100
> >   libavfilter     5.  2.103 /  5.  2.103
> >   libswscale      3.  1.101 /  3.  1.101
> >   libswresample   1.  1.100 /  1.  1.100
> > Input #0, mpegts, from '00005.MTS':
> >   Duration: 00:00:04.03, start: 0.519389, bitrate: 15152 kb/s
> >   Program 1
> >     Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p,
> > 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
> >     Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> stereo,
> > fltp, 256 kb/s
> > At least one output file must be specified
> >
> > ** Affects: openshot
> >      Importance: Undecided
> >          Status: New
> >
> > --
> > 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/1394452
> >
> > Title:
> >   preview blank
> >
> > Status in OpenShot Video Editor:
> >   New
> >
> > Bug description:
> >   When I start a new project and add my video files the preview works.
> >
> >   Once I get to maybe 7 or 8 clips added into the timeline, it will no
> >   longer show the preview in the preview window (it is black) but the
> >   audio plays.
> >
> >   I have tried installing from apt and from source.
> >
> >   Once the preview stops working in the project it stops for good
> >   regardless of reopening the same project file.
> >
> >   Debian Squeeze 64-bit
> >   Linux ns2.shawnread.ca 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1
> > x86_64 GNU/Linux
> >
> >   apt, debs, and source
> >
> >   No LADSPA plugins were found!
> >   Check your LADSPA_PATH environment variable.
> >   melt 0.8.0
> >
> >   ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> > developers
> >     built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
> >     configuration:
> >     libavutil      54. 14.100 / 54. 14.100
> >     libavcodec     56. 12.101 / 56. 12.101
> >     libavformat    56. 14.100 / 56. 14.100
> >     libavdevice    56.  3.100 / 56.  3.100
> >     libavfilter     5.  2.103 /  5.  2.103
> >     libswscale      3.  1.101 /  3.  1.101
> >     libswresample   1.  1.100 /  1.  1.100
> >
> >   OpenShot 1.4.4~alpha1
> >
> >   Yes both ffplay and melt work video and audio. Video info is:
> >
> >   root@ns2:~/Desktop/GUATEMALA/1# ffmpeg -i 00005.MTS
> >   ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> > developers
> >     built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
> >     configuration:
> >     libavutil      54. 14.100 / 54. 14.100
> >     libavcodec     56. 12.101 / 56. 12.101
> >     libavformat    56. 14.100 / 56. 14.100
> >     libavdevice    56.  3.100 / 56.  3.100
> >     libavfilter     5.  2.103 /  5.  2.103
> >     libswscale      3.  1.101 /  3.  1.101
> >     libswresample   1.  1.100 /  1.  1.100
> >   Input #0, mpegts, from '00005.MTS':
> >     Duration: 00:00:04.03, start: 0.519389, bitrate: 15152 kb/s
> >     Program 1
> >       Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448),
> > yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn,
> 59.94
> > tbc
> >       Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> > stereo, fltp, 256 kb/s
> >   At least one output file must be specified
> >
> > To manage notifications about this bug go to:
> > https://bugs.launchpad.net/openshot/+bug/1394452/+subscriptions
> >
> > --
> > Mailing list: https://launchpad.net/~openshot.bugs
> > Post to     : <email address hidden>
> > Unsubscribe : https://launchpad.net/~openshot.bugs
> > More help   : https://help.launchpad.net/ListHelp
> >
>
>
> --
> Olivier
> Cenwen un elfe sur la banquise/ an elve on the ice
> Mon blog perso  sur le multimédia, Ubuntu, Linux et OpenShot :
> http://linuxevolution.wordpress.com/
> Le forum d'Openshot où vous me trouverez : http://openshotusers.com/
> http://openshotusers.com/forum/index.php
> Nothing is lost until the last second.
> The family motto : When we want, we can.
> Astuces, Actualités, Logiciels, bref sur tout ce que je ne fais d'articles
> dessus Google+ <https://plus.google.com/u/0/111472725110173916234/posts>
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1394452
>
> Title:
>   preview blank
>
> Status in OpenShot Video Editor:
>   New
>
> Bug description:
>   When I start a new project and add my video files the preview works.
>
>   Once I get to maybe 7 or 8 clips added into the timeline, it will no
>   longer show the preview in the preview window (it is black) but the
>   audio plays.
>
>   I have tried installing from apt and from source.
>
>   Once the preview stops working in the project it stops for good
>   regardless of reopening the same project file.
>
>   Debian Squeeze 64-bit
>   Linux ns2.shawnread.ca 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1
> x86_64 GNU/Linux
>
>   apt, debs, and source
>
>   No LADSPA plugins were found!
>   Check your LADSPA_PATH environment variable.
>   melt 0.8.0
>
>   ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> developers
>     built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
>     configuration:
>     libavutil      54. 14.100 / 54. 14.100
>     libavcodec     56. 12.101 / 56. 12.101
>     libavformat    56. 14.100 / 56. 14.100
>     libavdevice    56.  3.100 / 56.  3.100
>     libavfilter     5.  2.103 /  5.  2.103
>     libswscale      3.  1.101 /  3.  1.101
>     libswresample   1.  1.100 /  1.  1.100
>
>   OpenShot 1.4.4~alpha1
>
>   Yes both ffplay and melt work video and audio. Video info is:
>
>   root@ns2:~/Desktop/GUATEMALA/1# ffmpeg -i 00005.MTS
>   ffmpeg version N-67826-g4ffec6d Copyright (c) 2000-2014 the FFmpeg
> developers
>     built on Nov 19 2014 10:49:12 with gcc 4.7 (Debian 4.7.2-5)
>     configuration:
>     libavutil      54. 14.100 / 54. 14.100
>     libavcodec     56. 12.101 / 56. 12.101
>     libavformat    56. 14.100 / 56. 14.100
>     libavdevice    56.  3.100 / 56.  3.100
>     libavfilter     5.  2.103 /  5.  2.103
>     libswscale      3.  1.101 /  3.  1.101
>     libswresample   1.  1.100 /  1.  1.100
>   Input #0, mpegts, from '00005.MTS':
>     Duration: 00:00:04.03, start: 0.519389, bitrate: 15152 kb/s
>     Program 1
>       Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448),
> yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94
> tbc
>       Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz,
> stereo, fltp, 256 kb/s
>   At least one output file must be specified
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/openshot/+bug/1394452/+subscriptions
>