cannot use Pitivi because of obscure missing library/plugin

[M. Fioretti]

Greetings,

I urgently need to clip and save a few scenes from some mp4 files. 
Nothing more.

Only machine I can do this right now is a fedora 25 x86_64 box.

When I launch PiTiVi from the command line, it starts, but it says:

Missing soft dependency:
- libav not found on the system
     -> additional multimedia codecs through the GStreamer Libav library

But I haven't been able to figure out WHICH package/repository is 
supposed to provide that libav library. Dnf search returns so many 
packages of gstreamer plugins that I fear to make things worse by 
installing them at random.

If I ignore that warning and I try to import the mp4 files in PiTiVi, it 
complains like this:

Problem: gst-core-error-quark
Extra information: gst-core-error-quark: Your GStreamer installation is 
missing a plug-in. (12)

but for this error message I've only found errors like this, on other 
distros, that
do nothing good on Fedora: 
https://bbs.archlinux.org/viewtopic.php?id=138027

please help me to find out which package I should install, or setting I 
should change.

Alternatively, please just let me know which other video editor can 
quickly and surely "clip and save a few scenes from some mp4 files" 
which is all I need right now, on Fedora 25, without hunting error 
messages, libraries etc..

Thanks!


-- 
http://mfioretti.com

[Joe Zeff]

On 07/21/2017 02:50 PM, M. Fioretti wrote:
>  When I launch PiTiVi from the command line, it starts, but it says:
>  
>  Missing soft dependency:
>  - libav not found on the system
>       -> additional multimedia codecs through the GStreamer Libav library 
Where did you get PiTiVi and how did you install it?

[Samuel Sieb]

On 07/21/2017 02:50 PM, M. Fioretti wrote:
>  When I launch PiTiVi from the command line, it starts, but it says:
>  
>  Missing soft dependency:
>  - libav not found on the system
>       -> additional multimedia codecs through the GStreamer Libav library 
Pretty sure you need the "gstreamer1-libav" package from rpmfusion.

kdenlive is also a suitable video editor.  But no matter which one you 
use, you will still need to get the codecs from rpmfusion if you're 
trying to edit mp4 files.

[Ed Greshko]

On 07/22/17 05:50, M. Fioretti wrote:
>  I urgently need to clip and save a few scenes from some mp4 files. Nothing more.
>
>  Only machine I can do this right now is a fedora 25 x86_64 box.
>
>  When I launch PiTiVi from the command line, it starts, but it says:
>
>  Missing soft dependency:
>  - libav not found on the system
>      -> additional multimedia codecs through the GStreamer Libav library
>
>  But I haven't been able to figure out WHICH package/repository is supposed to
>  provide that libav library. Dnf search returns so many packages of gstreamer
>  plugins that I fear to make things worse by installing them at random.
>
>  If I ignore that warning and I try to import the mp4 files in PiTiVi, it complains
>  like this:
>
>  Problem: gst-core-error-quark
>  Extra information: gst-core-error-quark: Your GStreamer installation is missing a
>  plug-in. (12)
>
>  but for this error message I've only found errors like this, on other distros, that
>  do nothing good on Fedora: https://bbs.archlinux.org/viewtopic.php?id=138027
>
>  please help me to find out which package I should install, or setting I should change.
>
>  Alternatively, please just let me know which other video editor can quickly and
>  surely "clip and save a few scenes from some mp4 files" which is all I need
> right
>  now, on Fedora 25, without hunting error messages, libraries etc..  

When you installed pitivi it should have installed what you need to get it to run
automagically.

But it sounds like you may be missing....

gstreamer1
gstreamer1-plugins-bad-free
gstreamer1-plugins-bad-free-gtk
gstreamer1-plugins-good

There is always avidemux, which I think is in rpmfusion.

-- 
Fedora Users List - The place to go to speculate endlessly

[Ed Greshko]

On 07/22/17 06:02, Ed Greshko wrote:
>  On 07/22/17 05:50, M. Fioretti wrote:
> > I urgently need to clip and save a few scenes from some mp4 files. Nothing more.
> >
> > Only machine I can do this right now is a fedora 25 x86_64 box.
> >
> > When I launch PiTiVi from the command line, it starts, but it says:
> >
> > Missing soft dependency:
> > - libav not found on the system
> >     -> additional multimedia codecs through the GStreamer Libav library
> >
> > But I haven't been able to figure out WHICH package/repository is supposed to
> > provide that libav library. Dnf search returns so many packages of gstreamer
> > plugins that I fear to make things worse by installing them at random.
> >
> > If I ignore that warning and I try to import the mp4 files in PiTiVi, it complains
> > like this:
> >
> > Problem: gst-core-error-quark
> > Extra information: gst-core-error-quark: Your GStreamer installation is missing a
> > plug-in. (12)
> >
> > but for this error message I've only found errors like this, on other distros,
> that
> > do nothing good on Fedora: https://bbs.archlinux.org/viewtopic.php?id=138027
> >
> > please help me to find out which package I should install, or setting I should
> change.
> >
> > Alternatively, please just let me know which other video editor can quickly and
> > surely "clip and save a few scenes from some mp4 files" which is all I need
> right
> > now, on Fedora 25, without hunting error messages, libraries etc.. 
>
>  When you installed pitivi it should have installed what you need to get it to run
>  automagically.
>
>  But it sounds like you may be missing....
>
>  gstreamer1
>  gstreamer1-plugins-bad-free
>  gstreamer1-plugins-bad-free-gtk
>  gstreamer1-plugins-good
>
>  There is always avidemux, which I think is in rpmfusion.
>  
Oh, and probably gstreamer1-libav is missing as well

-- 
Fedora Users List - The place to go to speculate endlessly

[stan]

On Fri, 21 Jul 2017 23:50:05 +0200
"M. Fioretti" <mfioretti(a)nexaima.net&gt; wrote:

>  Alternatively, please just let me know which other video editor can 
>  quickly and surely "clip and save a few scenes from some mp4 files" 
>  which is all I need right now, on Fedora 25, without hunting error 
>  messages, libraries etc.. 
A more manual method that might work for you if there are only a few
clips you need, and you don't need accuracy to the frame.

Play the video in mplayer.
At the start of the clip, press P to show the time and record it.
At the end of the clip, press P to show the time and record it.
Then run ffmpeg as follows, replacing with proper file name and
times.  The time for ss is the start time you recorded above.  The time
for t is the duration of the clip, the difference in the two times you
recorded.

ffmpeg -ss "00:01:23" -i name_of_video_file_in  -codec copy  -t
"00:01:00" name_of_clip_file_out

You might have to tweak the start and duration to get it right.

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[M. Fioretti]

On 2017-07-21 23:50, M. Fioretti wrote:
>  Greetings,
>  
>  I urgently need to clip and save a few scenes from some mp4 files. 
>  Nothing more. 
I enabled rpmfusion and added the packages that were suggested. Pitivi 
continued
to complain just the same as before.

I installed kdenlive and managed to extract the few clips I really 
needed to deliver
by this week. The others can wait till next weekend.

Still puzzled that something so simple still is so complicated (not 
intuitive
at all both in Pitivi and Kdenlive IMHO) but I can live with that, for 
now.

Thanks to all who helped, going offline for the weekend now.

Marco

>  Only machine I can do this right now is a fedora 25 x86_64 box.
>  
>  When I launch PiTiVi from the command line, it starts, but it says:
>  
>  Missing soft dependency:
>  - libav not found on the system
>      -> additional multimedia codecs through the GStreamer Libav library
>  
>  But I haven't been able to figure out WHICH package/repository is
>  supposed to provide that libav library. Dnf search returns so many
>  packages of gstreamer plugins that I fear to make things worse by
>  installing them at random.
>  
>  If I ignore that warning and I try to import the mp4 files in PiTiVi,
>  it complains like this:
>  
>  Problem: gst-core-error-quark
>  Extra information: gst-core-error-quark: Your GStreamer installation
>  is missing a plug-in. (12)
>  
>  but for this error message I've only found errors like this, on other
>  distros, that
>  do nothing good on Fedora: 
>  https://bbs.archlinux.org/viewtopic.php?id=138027
>  
>  please help me to find out which package I should install, or setting
>  I should change.
>  
>  Alternatively, please just let me know which other video editor can
>  quickly and surely "clip and save a few scenes from some mp4 files"
>  which is all I need right now, on Fedora 25, without hunting error
>  messages, libraries etc..
>  
>  Thanks! 
-- 
http://mfioretti.com

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[Ed Greshko]

On 07/22/17 20:09, M. Fioretti wrote:
>  On 2017-07-21 23:50, M. Fioretti wrote:
> > Greetings,
> >
> > I urgently need to clip and save a few scenes from some mp4 files. Nothing more.
>
>  I enabled rpmfusion and added the packages that were suggested. Pitivi continued
>  to complain just the same as before.  
You didn't answer one of the most important questions put to you. 

From where did you get Pitivi?  It sounds like you didn't get it from the fedora
repositories.  Had you done that all of the dependencies would have been pulled down
for you and you wouldn't have this trouble.  I know this since I've got it
installed
on 2 systems. 


-- 
Fedora Users List - The place to go to speculate endlessly

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[M. Fioretti]

On 2017-07-22 15:57, Ed Greshko wrote:
>  On 07/22/17 20:09, M. Fioretti wrote:
> > On 2017-07-21 23:50, M. Fioretti wrote:
> >> Greetings,
> >> 
> >> I urgently need to clip and save a few scenes from some mp4 files. 
> >> Nothing more.
> > 
> > I enabled rpmfusion and added the packages that were suggested. Pitivi 
> > continued
> > to complain just the same as before.
>  
>  You didn't answer one of the most important questions put to you.
>  
>  From where did you get Pitivi?  It sounds like you didn't get it from 
>  the fedora
>  repositories. 
I did: "sudo dnf install pitivi"

If you have other questions, just ask: I may do some more debugging on 
this, but next weekend.

Marco
-- 
http://mfioretti.com

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[Ed Greshko]

On 07/23/17 00:17, M. Fioretti wrote:
>  On 2017-07-22 15:57, Ed Greshko wrote:
> > On 07/22/17 20:09, M. Fioretti wrote:
> >> On 2017-07-21 23:50, M. Fioretti wrote:
> >>> Greetings,
> >>>
> >>> I urgently need to clip and save a few scenes from some mp4 files. Nothing
> more.
> >>
> >> I enabled rpmfusion and added the packages that were suggested. Pitivi continued
> >> to complain just the same as before.
> >
> > You didn't answer one of the most important questions put to you.
> >
> > From where did you get Pitivi?  It sounds like you didn't get it from the fedora
> > repositories.
>
>  I did: "sudo dnf install pitivi"
>
>  If you have other questions, just ask: I may do some more debugging on this, but
>  next weekend.
>
>  
OK.   I just find it odd that you had troubles.

I installed from the fedora repositories and added python3-devel and gstreamer1-libav
to quiet a couple fo warning messages on start from the command line.

Also have the following gstreamer1 packages installed

python3-gstreamer1-1.12.2-1.fc26.x86_64
gstreamer1-libav-1.12.2-1.fc26.x86_64
gstreamer1-1.12.2-1.fc26.x86_64
gstreamer1-plugins-bad-free-1.12.2-1.fc26.x86_64
gstreamer1-plugins-ugly-free-1.12.2-1.fc26.x86_64
gstreamer1-plugins-base-1.12.2-1.fc26.x86_64
libnice-gstreamer1-0.1.13-8.fc26.x86_64
gstreamer1-plugins-bad-free-gtk-1.12.2-1.fc26.x86_64
gstreamer1-plugins-good-1.12.2-1.fc26.x86_64

And I can work with

egreshko@acer ~]$ file Black.mp4
Black.mp4: MPEG transport stream data

and

[egreshko@acer Downloads]$ file Line.mp4
Line.mp4: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]

Without trouble.

FWIW, I find that doing simple tasks such as simply cutting out a few portions of a
video is done easier and quicker with avidemux.

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Fedora Users List - The place to go to speculate endlessly

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[Michael Schwendt]

On Sun, 23 Jul 2017 08:07:03 +0800, Ed Greshko wrote:

>  libnice-gstreamer1-0.1.13-8.fc26.x86_64 
Unrelated to $subject, but a misnamed subpackage violating the
package naming guidelines.

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[Ed Greshko]

On 07/23/2017 09:15 PM, Michael Schwendt wrote:
>  On Sun, 23 Jul 2017 08:07:03 +0800, Ed Greshko wrote:
>
> > libnice-gstreamer1-0.1.13-8.fc26.x86_64
>  Unrelated to $subject, but a misnamed subpackage violating the
>  package naming guidelines. 
That package is from the fedora repo.  So, I'll leave it to you to report it since
I'm not familiar with the guidelines.  :-)


-- 
Fedora Users List - The place to go to speculate endlessly

SOLVED (sort of): cannot use Pitivi because of obscure missing library/plugin

[Samuel Sieb]

On 07/22/2017 06:57 AM, Ed Greshko wrote:
>   From where did you get Pitivi?  It sounds like you didn't get it
> from the fedora
>  repositories.  Had you done that all of the dependencies would have been pulled down
>  for you and you wouldn't have this trouble.  I know this since I've got it
> installed
>  on 2 systems. 
Pitivi itself is the Fedora repo because it uses gstreamer and doesn't 
require the bad packages to run.  However, if you want to edit mp4 
files, then you will need to add the extra packages from rpmfusion.  I 
generally just install all of the gstreamer plugin packages to make sure 
I'm covered for whatever file formats I might come across.