[sugar] idea for a tutorial recording activity

[Eduardo H Silva]

The link I gave seems to be not working, so here is it. The ogg video link
is on the left of this page:
http://www.archive.org/details/ScreencastOfBetaVersionOfSugarDesktopOnAXoLaptop

2007/12/10, Eduardo H Silva <hoboprimate at gmail.com>:
>
> Sometime ago I checked out recordmydesktop (
> http://recordmydesktop.iovar.org/about.php) to see how feasible it would
> be for XO owners to record screencasts. It is a command-line program, with
> separate gtk and qt frontends.
>
> I installed it into my B4 using
> yum install recordmydesktop
> I did some testing of the options the program has, and tried to tune them
> to get a balance between the speed of the system while recording, the size
> of the final video ( 5.6 MB for 6 minutes in my test) and speed when
> playing the video on a XO (also good with my test).
> The command I used was:
> recordmydesktop  --no-sound  -v  quality 10  -delay 10  -fps 10
> and the output:
>
> http://ia341239.us.archive.org/2/items/ScreencastOfBetaVersionOfSugarDesktopOnAXoLaptop/tmpNfhxcl.ogg
>
> It has the ability to record sound as well (which I disabled), so if in
> your activity you enabled the microphone while recording, it would be
> possible to do what you wanted, the kid/narrate things.
>
> Eduardo
>
>
> 2007/12/10, tridge at samba.org <tridge at samba.org>:
> >
> > I'd like some feedback on an idea for a tutorial recording activity.
> >
> > The idea is to allow the kids and teachers to use the laptop to create
> > their own tutorials on how to use the laptop, or how do do some neat
> > trick with it, program it, use an activity etc. The recording can be
> > in their own language, with explanations at their own level.
> >
> > The idea came from a recent experience where I created some flash
> > movies showing how clustered Samba works, and the great positive
> > feedback I got from that (see
> > http://samba.org/~tridge/ctdb_movies/<http://samba.org/%7Etridge/ctdb_movies/>).
> > We already had detailed
> > documents on how to setup clustered Samba and what it could do, but
> > the movies made a big difference anyway. People respond to
> > demonstrations more than documents.
> >
> > The basic tool I'm thinking of using is pyvnc2swf:
> >
> >  http://www.unixuser.org/~euske/vnc2swf/pyvnc2swf.html<http://www.unixuser.org/%7Eeuske/vnc2swf/pyvnc2swf.html>
> >
> > combined with x11vnc.
> >
> > The activity would start with a dialog box like this:
> >
> >    ===============================================
> >    To start recording your tutorial, click RECORD
> >             To end recording press Alt-7
> >
> >                 <RECORD>    <CANCEL>
> >    ===============================================
> >
> > When RECORD is clicked the dialog would go away, and the laptop would
> > be fully usable as normal. All activity will be recorded, including
> > voice.
> >
> > At the end of the recording the user clicks Alt-7, and a dialog
> > appears where they get to name their recording. Then there needs to be
> > a way to view recordings they have made, and share them with others,
> > probably via posting to a web site.
> >
> > It might also be nice to allow the user to enable/disable the camera
> > during the recordings with a hot-key. This would display the camera
> > view as a smallish box on the right hand side, which would then become
> > part of the recording.
> >
> > I don't know how much of this idea will be possible, as perhaps the
> > cpu and/or storage constraints will make it impractical. I also don't
> > know whether I'm capable of doing any of this as my python skills are
> > non-existant and I don't have much spare time, but if anyone would
> > like to jump in and help then I think it would be worth trying.
> >
> > I think this activity would be particularly useful for teacher to
> > teacher communication. Some teachers will have great ideas on how to
> > get the most out of these laptops, and we need a way to get those
> > ideas communicated as widely as possible. This might provide a
> > reasonable way to do that.
> >
> > I've put a trivial example of an OLPC 'calculator' tutorial that I
> > have created using x11vnc on my B2 at:
> >
> >    http://samba.org/~tridge/OLPC/calculator.html<http://samba.org/%7Etridge/OLPC/calculator.html>
> >
> > Some problems with it:
> >
> > - I should have scaled it better so it fits better when viewed on a OLPC
> > - sound doesn't play back when I view this on my B2. I don't know why
> >    yet.
> > - the movie is too large, mostly because the sound is too high
> >    quality I think.
> > - the Web activity consumes huge gobs of memory when playing back
> >    this tiny movie. It brings my 128M laptop to a crawl.
> > - gnash consumes too much cpu and memory, at least for a B2
> > - the JS framing in the movie and the pause control is not very good
> >
> > The above example was creating running x11vnc on the B2 and running
> > pyvnc2swf on my Debian laptop pointed at the B2 over a wireless
> > link. I haven't got the pyvnv2swf python code running on the B2 yet
> > (did I mention that my python skills are non-existant?)
> >
> > Cheers, Tridge
> > _______________________________________________
> > Sugar mailing list
> > Sugar at lists.laptop.org
> > http://lists.laptop.org/listinfo/sugar
> >
>
>
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