The excellent ffmpeg is the swiss army knife of all video processing. Just as a reminder to myself, here's a command line to convert an image and audio file to a video. ffmpeg -y -loop 1 -framerate 1 -i image.jpg -i Unknown.mp3 \ -c:v libx264 -preset medium -tune…
Just putting this here for easy reference, or to help any random passers by. I know there are tools that are supposed to automate this like rsnapshot but I was disappointed to see that rsnapshot is probably unmaintained On top of that, this looked like something easy enough to roll…
In this article I will walk us throught installing a bare metal owncloud server based on ubuntu server 18.04. Throughout this guide we will assue that our server is named myowncloud.mydomain.com. Base system installation First steps as usual, we download the ubuntu server install image. If you…
And so one day, I set to build a lightweight desktop environment around lxde. After some customizations, the thing that bugged me was that I could not set the keyboard layout change shortcut to the Win + Space shortcut that I have grown to like. What's not to like about it.…
It has been surprisingly difficult to find good opencv calibration patterns. I had found what I though was a good calibration image and ended up wasting my time. Turns out that file does not consist of squares. So I ended up making some high resolution PNG files for camera calibration.…
I am still hesitant to recommend to everyone to simplify their lives and move to a monorepo. But one can certainly go to extremes with many repositories. Juggling a system with tens of repositories is no fun either. So, how can we re-combine several repositories back to one, without losing…
In many cases when writing an API, we need to express the concept of an identifier. In C++ there is a better, type-safe way to do identifiers.…
This is an mirror of a post from John Carmack. Recently I learned that his articles on #AltDevBlog are no longer acessible. So, in order to archive them, I am re-posting them here. These articles are definitely good reads and worth to be preserved. The most important thing I have…
This is an mirror of a post from John Carmack. Recently I learned that his articles on #AltDevBlog are no longer acessible. So, in order to archive them, I am re-posting them here. These articles are definitely good reads and worth to be preserved. I used to Code Fearlessly all…
So, this is an mirror of a post from John Carmack. Recently I learned that his articles on #AltDevBlog are no longer acessible. So, in order to archive them, I am re-posting them here. These articles are definitely good reads and worth to be preserved. Probably everyone reading this has…