Need to create a screencast to demonstrate an application feature or
nifty software technique? The easiest way to do this is to install the
recordMyDesktop screen recording utility and the gtk-recordMyDesktop
graphical front-end to it. Most mainstream Linux distributions include
both packages in their repositories, so you can quickly install them
using your system's package manager. On Debian-based distros like
Sidux, installing both packages is a matter of running the apt-get install recordMyDesktop gtk-recordMyDesktop command.
The utility saves the recorded video as a .ogv file, which is fine if
you want to share it with other Linux users. But if you want to share
the screencast with the world by uploading it to one of many video
services such as YouTube or Vimeo, you have to convert the .ogv file
into one of the formats supported by these services. To do this, you
need to install two missing pieces first: the mencoder command-line
video conversion tool and Windows codecs. Neither Debian nor Ubuntu
have these packages in their default repositories, so you have to add a
repository containing them. On Sidux (which is based on Debian Sid),
you have to add the following repository using either the terminal or
Synaptic:
deb http://debian-multimedia.org/ sid main</pre>
<p>
On Ubuntu, you have to add the Medibuntu repository, and the <a href="https://help.ubuntu.com/community/Medibuntu" target="_self">Ubuntu Documentation Wiki</a>
explains how to do this. Run then the following command to reload the
repository information and install the mencoder and w32codecs packages:
</p>
<pre>apt-get update<br />apt-get install mencoder w32codecs</pre>
<p>
Now you can convert the .ogv screencast into the .avi file using the command below (replace <i>input.ogv</i> and <i>output.avi</i> with the source and target files):
</p>
<pre>mencoder -idx input.ogv -ovc lavc -oac mp3lame -o output.avi
That's all there is to it.
1 comment:
Yes, happens...
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