[SATLUG] screen recording tool

Don Davis dondavis at reglue.org
Sat Jul 20 12:24:38 CDT 2013


Can you just combine audio and video with openshot?


On Sat, Jul 20, 2013 at 10:07 AM, Borries Demeler
<demeler at biochem.uthscsa.edu> wrote:
> On Thu, Jul 18, 2013 at 03:09:47PM -0500, Austin Lowery wrote:
>> I have played around with Recordmydesktop and Kazam from the Ubuntu 13.04
>> software center and with my set up Kazam is a winner for sure.
>> Recordmydesktop is great for videos about 30 seconds long, and then for
>> some reason it just stops recording. Its probably just my set up though.  I
>> can take long high resolution viedos with Kazam.
>>
>> I am running an Intel® Core? i5-3470 CPU @ 3.20GHz × 4 with 8 gigs of ram.
>
> I tried both of these without success. Recordmydesktop basically failed to
> record fast enough, and the -fps setting seemed to be without effect. And
> that was on an 8-core I7 with ssd drive and 8GB RAM, certainly enough
> horsepower. Kazam requires Python 3.2, Slackware comes with 2.7.3 in
> the latest version so it refuses to run under Slackware. I don't have
> an Ubuntu box to try it.
>
> I think I may have found something that would work: a combination of
> vnctoflv, x11vnc and the KDE plasma desktop effects. I can run x11vnc
> on my linux :0 desktop on my second screen and record that screen with
> vnctoflv. The recorded flash video is smooth and very high quality. I can
> resize the resolution of the second screen easily with desktop setting
> app in KDE to whatever I need and with the plasma desktop in KDE I can
> use various magnification effects to highlight and magnify a rectangle
> around the mouse which nicely tracks on the vnc screen and gets recorded,
> so I have my magnification effect incorporated. One thing I would like to
> be able to do is panning under vnc (not scrolling), where the desktop
> dynamically expands by following the mouse. Haven't figure this one out
> yet.
>
> One thing that I also need to figure out is how to record a mp3 sound
> track and multiplex it synchronized to the flash movie. There is an app
> that comes with the vnctoflv program that is supposed to do that.
>
> Some more testing needed....
>
> Thanks for all the suggestions! -b.
>>
>>
>> On Wed, Jul 17, 2013 at 3:54 PM, Borries Demeler <
>> demeler at biochem.uthscsa.edu> wrote:
>>
>> > Thanks Don, tried wink, but it crashes on my install - looks like the
>> > wrong glibc ver...  I'll try it on another computer. Thanks for the tip
>> > though, will try some of the others on your list.
>> >
>> > -b.
>> >
>> >
>> > On Wed, Jul 17, 2013 at 03:40:02PM -0500, Don Davis wrote:
>> > > I was not (very) lucky with the top GNU/Linux candidates that people
>> > > most frequently mention e.g. recordmydesktop, Istanbul, etc. They
>> > > provided basic functionality but flaked out a bit.
>> > >
>> > > As far as making instructional videos with a screen capture tool in
>> > > Linux - I had the most luck with 'Wink' - it's free but not open source.
>> > > It makes editing and adding extras (e.g. arrows, stickies, etc.) quite
>> > easy.
>> > >
>> > > http://www.debugmode.com/
>> > >
>> > >
>> > > Most screen capture recommendations I saw with a quick Google search
>> > > were pretty basic. This one had Wink and some I hadn't seen before - so
>> > > it might be worthwhile:
>> > > http://ostatic.com/blog/six-top-screen-capture-tools-for-linux
>> > >
>> > >
>> > >
>> > > On 07/17/2013 03:30 PM, Borries Demeler wrote:
>> > > > Does anybody have any experience with using screen recording tools in
>> > > > Linux that can produce videos that can be uploaded to youtube or some
>> > > > other website in a generic video format? I want to create a series of
>> > > > instructional videos for our software. I have done this in the past by
>> > > > recording a statically sized VNC window big enough to capture the whole
>> > > > screen (and rather large/complex GUI elements) and converting the
>> > captured
>> > > > vnc session into a flash movie.
>> > > >
>> > > > The problem with this approach is that some screens and apps are so
>> > large
>> > > > that I need to make a very big vnc window (and hence a large sized
>> > video
>> > > > format) in order to capture the entire application. On youtube I have
>> > > > seen recordings where preset (smaller) sized screen segments follow the
>> > > > mouse, so that preset sized screen segment is not too large for small
>> > > > screens, but still everything is shown at high resolution, even if the
>> > > > entire screen can not be seen. I also need the ability to record sound
>> > > > and multiplex that with my screen video recording, it would be best if
>> > > > the recording can do this simultaneously.
>> > > >
>> > > > If you can offer a recommendation based on prior experience for
>> > something
>> > > > that is stable and has the needed features that would be great!  An
>> > open
>> > > > source solution I can compile without an endless list of dependencies
>> > > > under a recent version of Slackware would be preferred.
>> > > >
>> > > > Thanks for any tips!
>> > > >
>> > > > -borries
>> > > --
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