[ubuntu-uk] Screencast a presentation with Impress and webcam

[James Morrissey]

Thanks for the feedback Bruno.

Rather than do that, what about recording yourself with Cheese first and
save the video to a file? No need for a camcorder. Then re-run the audio
and click through the slides. Then save the screencast of the slides to
another video file.

Yes, that looks like a better option. I'm not sure what i was thinking.

Finally combine both videos using gstreamer picture-in-picture
compositing abilities, as explained here:
http://www.oz9aec.net/index.php/gstreamer/347-more-gstreamer-tips-picture-in-picture-compositing

Thanks for this. It looks interesting, but a little beyond me for now so i
think i'll try kdenlive as Ivan suggested. I will however try and work this
out.

Thanks,

James.


On 22 January 2013 17:46, Bruno Girin <brunogirin at gmail.com> wrote:

> On 22/01/13 17:17, James Morrissey wrote:
> > Hi,
> >
> > I am trying to put together a presentation for a conference. The
> > conference is in Australia and rather than flying there i am trying to
> > make a video of my presentation, following which i will skype into the
> > Q&A plenary.
> >
> > I had thought of simply reading the paper, but worry this might get a
> > little boring for the audience. So now i am thinking of including some
> > impress slides into the presentation. With that in mind i also don't
> > want to simply have my voice running over an impress slide.
> >
> > So i have thought of trying to make a screencast with an image from my
> > webcam running in one of the corners. This seems easy enough, just set
> > cheese (or some equivalent) running and record my desktop. The problem
> > though is that i'd ideally like to be able to run impress in full
> > screen mode. Doing so, however, covers up cheese - even if i set it to
> > 'always on top'.
> >
> > In a perfect world i'd also be able to resize the video of myself,
> > during the video, so that when the slide is more relevant to what i am
> > saying it dominates the picture and when what i am saying is most
> > relevant, my face does.
> >
> > The solution i thought of was to run cheese on one workspace and
> > recordmydesktop on another, where Impress is running in full screen
> > mode. I'd then give the talk, clicking through impress, with both
> > recordings running. Following that i'd open one instance of Totem and
> > another of VLC, one showing the cheese video of me and the other the
> > screencast of Impress. I'd then record that desktop, resizing the
> > cheese video, of myself, at the different parts of the talk.
> >
> > Unfortunately it seems that running recordmydestop means that cheese
> > can't record from my webcam - it can show the image, but crashed when
> > i hit record and now can't find my webcam. The same thing has happened
> > with Kamoso which also now can't find the webcam.
> >
> > I was thus thinking that i could try and use a cam corder, and take a
> > video of me giving the talk before taking a screen cast of the impress
> > presentation, using the audio from the talk as my cue for clicking
> > through the slides. I'd then stick the two of them together, as
> > described above, recording the two videos playing on top of one another.
>
> Rather than do that, what about recording yourself with Cheese first and
> save the video to a file? No need for a camcorder. Then re-run the audio
> and click through the slides. Then save the screencast of the slides to
> another video file.
>
> Finally combine both videos using gstreamer picture-in-picture
> compositing abilities, as explained here:
>
> http://www.oz9aec.net/index.php/gstreamer/347-more-gstreamer-tips-picture-in-picture-compositing
>
> You could probably use a video editor to do this as well.
>
> Cheers,
>
> Bruno
>
>
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.ubuntu.com/UKTeam/
>



-- 
James Morrissey
Research Officer
Refugee Studies Centre | Department of International Development |
University of Oxford
Junior Research Fellow in Refugee Studies | Lady Margaret Hall | University
of Oxford
3 Mansfield Road | Oxford, United Kingdom | OX1 3TB

www.peliteracy.org
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