AV1 is a video codec by the Alliance for Open Media, composed of most
of the important Web companies (Google, Facebook, Netflix, Amazon,
Microsoft, Mozilla...).

AV1 has the potential to be up to 20% better than the HEVC codec, but
the patents license is totally free, while HEVC patents licenses are
insanely high and very confusing.

dav1d supports:
* all the features of AV1, even the less know ones
* 8, 10, 12 bits, and all chroma subsamplings
* all AV1 files that were shared to the developers

With gstreamermm it is possible to
develop applications that work with multimedia in C++.

This library provides decoding and encoding of audio on a playlist. It is
intended to be used as a backend for music player applications. That said,
it is also generic enough to be used as a backend for any streaming audio
processing utility.

QJack makes you connect with the Jack soundserver system with Qt4.

libuvc is a library that supports enumeration, control and streaming for USB
Video Class (UVC) devices, such as consumer webcams.

ZenLib is a C++ utility library. It includes classes for handling
strings, configuration, bit streams, threading, translation
and cross-platform operating system functions.

The Portable C Audio Library (pcaudiolib) provides a C API to different audio devices.
It supports many different platforms, including ones on Linux, MacOS and Windows.

This is a fork of phonon-vlc, rewritten to work with libmpv instead of
libVLC. libmpv supports less features than VLC but they are only
related to memory streams and audio/video dumps. This backend should be
a lightweight alternative to libVLC with less dependencies.

A Python wrapper for the mediainfo library.

VSXu (VSX Ultra) is an OpenGL-based (hardware-accelerated), modular programming environment with its main purpose to visualize music and create graphic effects in real-time.

lapdog is a service that monitors the presence/absence of the devices
on your LAN and executes some actions accordingly.

PcapPlusPlus is a C++ network sniffing and packet parsing and
manipulation framework.

qBittorrent is a bittorrent client programmed in C++ / Qt that uses libtorrent-rasterbar.

It aims to be a good alternative to all other bittorrent clients out there. qBittorrent is fast, stable and provides unicode support as well as many features.

A program which downloads and converts online videos from YouTube, Vimeo,
DailyMotion, MyVideo and many other platforms.

gallery-dl is a command-line program to download image galleries and collections from several image hosting sites.

Hexadecimal and raw packet injector and sniffer. Can be easily combined with other tools to provide a powerful cmdline framework for raw network access.

LinSSID is graphically and functionally similar to iwscanner (Linux) and Inssider (Microsoft™ Windows®). It is written entirely in C++ using Linux wireless tools, Qt5, and Qwt.

NmapSI4 is a complete Qt5-based Gui with the design goals to provide
a complete nmap interface for Users, in order to management all option
of this power security net scanner

Packit (Packet toolkit) is a network auditing tool. Its value is derived
from its ability to customize, inject, monitor, and manipulate IP traffic.
By allowing you to define (spoof) nearly all TCP, UDP, ICMP, IP, ARP,
RARP, and Ethernet header options, Packit can be useful in testing
firewalls, intrusion detection/prevention systems, port scanning,
simulating network traffic, and general TCP/IP auditing. Packit is also
an excellent tool for learning TCP/IP.

QtSmbstatus is a GUI (graphical user interface) for smbstatus. It is meant to
provide the possibility of administering remote machines. QtSmbstatus was designed
as a client/server system secured with SSL. A login and password is required to
log on to server (PAM). The server's application ought to be installed with
samba-server.

TorrentInfo is a command line script that parses .torrent files and displays
the information contained within them. Currently, it can display a summary
of the whole torrent, information on each file within the torrent, and a
full hierarchical dump of the torrent file's contents.

I guess everybody with a laptop has experienced this problem at some point: You plug into a network and just want to exchange files with other participants. It always is a pain until you can exchange files with the person vis-a-vis.

Woof (Web Offer One File) tries a different approach. It assumes that everybody has a web-browser or a commandline web-client installed. Woof is a small simple stupid webserver that can easily be invoked on a single file. Your partner can access the file with tools he trusts (e.g. wget). No need to enter passwords on keyboards where you don't know about keyboard sniffers, no need to start a huge lot of infrastructure, just do a "woof filename" and tell the recipient the URL woof spits out. When he got that file, woof will quit and everything is done.
And when someone wants to send you a file, woof has a switch to offer itself, so he can get woof and offer a file to you.

Wput is a command-line ftp-client that looks like wget but instead of
downloading, uploads files or whole directories to remote ftp-servers.