My laptop is a Thinkpad T40 from 2003 with 1GB of RAM and a 30GB HDD (Yes, you can laugh now). I bought it second hand many years ago, it had Windows installed and it was slow as molasses. It was also a time that I got interested in FLOSS. So I looked for a suitable Linux distro and I found Puppy Linux (Slacko and later the TahrPup release). It turned my unusable laptop into a fast and very capable computer. I’ll never forget the amazement when I booted Puppy for the first time and saw how fast it was.
I’m not much of a distro hopper but last year I switched to AntiX because I felt that development of Puppy had slowed down. AntiX does more or less the same as Puppy in that it brings life to an old computer. Both are very lightweight but at this moment I find AntiX definitely more polished with JWM, FluxBox and IceWM as window managers to choose from.
Both Puppy and AntiX contain, as do most of the other Linux Distros, proprietary bits and pieces (e.g drivers and it’s possible to install proprietary programs from the Snap store or PPM) but are mostly FLOSS and are available thanks to many volunteers that dedicate so much of their time to these operating systems. So I think it’s fair to contribute back e.g by donating to the developers that make this possible.
Animated GIFs are after all these years still pretty popular. FFmpeg is a good FLOSS tool to create these animated GIFs. FFmpeg is available for Windows, Linux and OSX. A word of warning FFmpeg is a command line tool that’s very versatile but it’s not for everybody. In fact suppose this post is more for users that like to tinker a lot with their animated GIFs. Below I will explain not only how to create a animated GIF from an mpeg4 movie but I also provide instructions to improve the quality.
The basic command to create an animated GIF from a mpeg4 is:
ffmpeg -i input.mp4 output.gif
where the name of the input file is input.mp4 and output.gif is the name of the output file. Unfortunately gif images are large due to their lossless data compression. So you’ll end up with a file that’s much bigger than the original mpeg4 and probably something that exceeds the upload limit of Diaspora*, Friendica or Mastodon.
In order to reduce the size of the file we can reduce the size of the images or we can reduce the number of frames per second. To achieve this we need the following command:
ffmpeg -i input.mp4 -r 12 -s 320x180 output.gif
This command reduces the framerate to 12 per second and resizes to 320×180 pixels. For the size of the GIF make sure that the aspect ratio remains the same or the resulting GIF will be distorted.
When we look closely at the resulting GIF we clearly notice some shortcomings in the animation. This is due to the default GIF encoding in FFmpeg. Because GIFs only uses 256 colors the number of colors from the mpeg4 needs to be reduced. FFmpeg by default uses a generic palette of 256 colors that covers the widest range of content. This is in general not optimal for the specific video that you want to convert. Luckily FFmpeg allows us to create a custom palette for our specific video. To create this palette type:
When we look in the folder of our mpeg file well noice that a file ‘palette.png’ has been added. This is our newly created 256 color palette for our specific video which is generated by the palettegen filter. To use the new palette with our mpeg video type:
FFmpeg needs two input files (streams) in this case test.mp4 and our newly created palette.png. The paletteuse filter takes the two streams as input specified by [0:v] and [1:v] where v stands for video and the preceding number for the number of the stream. The output file is renamed to prettyOutput.gif to differentiate it from the earlier output.gif. The resulting video should be much … prettier. If your resulting video is still too large either reduce the frame rate or resize even further (or just reduce the length of the video of course).
With the demise of G+ a lot of community owners are suddenly looking for a new home. Since a lot of G+ users despise FaceBook (and rightfully so) other social networks are mentioned. The problem with a lot of these networks is that they are centralized and proprietary making the users depending on the whims of the owner of the network. Below I summerize the FLOSS options for people interested in setting up a community. This is not an exhaustive list. I encountered these options after discussions often on G+ and I experimented with some of these options during the last couple of months.
Self-hosted or not
An important decisions is whether or not to host the forum or community yourself. If you want to host it yourself you’ll keep full control of the server however the maintenance is considerably more labor-intensive than with a non-selfhosted solution. You also need to install the software on a server and configure it.
Both are macroblogging social media networks that offer the possibility to create a forum. The UI of Friendica doesn’t look very modern but the functionality needed to use and maintain a forum is all there. Click this link to see an example of what a Friendica forum looks like. If you want to create a forum on a existing server please note that the administrator of this server can place limits to the forum e.g the number of participant or the number of forums that can be created by one account. Be aware that you’re a guest on someone else’s server.
A practical example. In the German town of Zwenkau the citizens are provided with a community platform, the Zwenkauer Flaschenpost, for online communication and discussion between citizens. This is all done with a standard Friendica install on a server. If you want to read more here is a link.
Movim is social platform that let you share and chat. Movim is build on top of the XMPP communication protocol. A strength of Movim is that is federates and that everyone with a XMPP account (e.g Jabber) can connect. Once you’ve created an account it’s very easy to create a community. The UI looks modern but some community admin features are missing (or I couldn’t find them). As an example as an owner I couldn’t ban someone from the community. On the other hand I found Movim community the easiest to set up (in a non-selfhosted environment). This is a link to my Movim community. Also a word of warning if you create a forum on an existing server be aware that you’re a guest of that server and that restriction may be applicable.
Mastodon is a microblog social network that has a TweetDeck like interface. I was hesitant to add it to this list because the UI and the dynamic experience differ from a classical forum where the same post remains in the viewport for days or weeks. However when joining the right instance (=server) or create one yourself it may very well become a great dedicated community. Here is a link to mastodon.art an instance where artists can show their artwork.
Open source forum software that is currently in beta. Nice, modern UI. I’ve read some concerns about the beta status and the stability of Flarum. If you want to see what the interface looks like here is a link. Here is a link to a guide how to install Flarum.
Open source forum software with a modern UI. You can either self host for free or use a NodeBB hosting plan that comes with a price tag. Here is a link to the source of NodeBB. You can check the interface yourself on this website.
Forum software based on the PHP programming language. I know phpBB mainly because it’s used on the FreeCAD forum, a place that I visit sometimes. phpBB is feature rich and from a user perspective it’s a joy to use. The documentation about this forum software can be found here. Here is a link to the source code.