Tutorials, guides and articles
Tutorial on how to use FFMpeg to combine multiple live video sources, for example webcams, and re-stream to a video streaming service like YouTube or any other that support rtmp ingestion.
Quick tutorial on creating basic certificates for encrypted TLS connections, usable for development or other private purposes. Both self-signed and custom CA variations are described.
A quick tutorial video on how to add/replace memory on a Lenovo Z50 laptop.
How to query a Bluetooth LE bicycle Cadence and Speed sensor using gattool, the BlueZ Bluetooth Low Energy tool.
Tutorial on how to build native QtCreator 4.12.2 to run on a Raspberry Pi, against Qt 5.12 or later.
So now you have a shiny new Qt build on your Raspberry Pi. Now what ? Testing! This tutorial presents a very simple, sort-of a Hello World QtQuick applications. Start your favorite editor (nano, vi, emacs, editor-of-choice) and paste the following code into it and then save it as main.qml
How to build native Android ARM OpenCV 4.5 that can be used together with Qt 5.12 or later C++ framework on the Android platform.
A quick tutorial on how to extract private key and certificate from a PFX or PKCS #12 archive file into a format that, for example, Apache can use.
How to install OpenSSL 1.1.1 on older Linux distributions that does not provide it when working with Qt 5.12.4 or later.
Various tricks and tips for users of Raspberry Pis, mainly with Raspbian distribution. These tips and tricks grows over time.
Build OpenSSL for Qt Android on Linux with uptodate Android NDK using clang compiler. Both 1.1.1 for Qt 5.12.4 and later and 1.0.2 for older Qt versions are covered.
https://developer.nvidia.com/video-encode-decode-gpu-support-matrixBuild FFmpeg packages with hardware accelerated NVIDIA encoding & decoding support. Tested on Linux Mint.