Pipe-Viewer is a lightweight application for searching and playing videos from YouTube. It parses the YouTube website directly and relies on the Invidious instances only as a fallback method.

Libaom is the reference implementation of AV1. It includes a shared library and encoder and decoder command-line executables.

Pitivi is a video editor built upon the GStreamer Editing Services. It aims to be an intuitive and flexible application that can appeal to newbies and professionals alike.

libdca is a library for decoding DTS Coherent Acoustics streams.

dav1d is a new AV1 cross-platform decoder, and focused on speed and correctness.

Streamlink is command-line utility that extracts streams from sites like Twitch.tv and pipes them into a video player of choice.

VDPAU is the Video Decode and Presentation API for UNIX. It provides an interface to video decode acceleration and presentation hardware present in modern GPUs.

yt-dlp is a small command-line program to download videos from YouTube.com and many more sites. It is a fork of youtube-dl with a focus on adding new features while keeping up-to-date with the original project.

Libdvdnav is a library for developers of multimedia applications. It allows easy use of sophisticated DVD navigation features such as DVD menus, multiangle playback and even interactive DVD games. All this functionality is provided through a simple API which provides the DVD playback as a single logical stream of blocks, intermitted by special dvdnav events to report certain conditions. The main usage of libdvdnav is a loop regularly calling a function to get the next block, surrounded by additional calls to tell the library of user interaction. The whole DVD virtual machine and internal playback states are completely encapsulated.

This package shows the keys that the user presses on the screen.

Presumably, that's because you are presenting the screen to someone else that should see the keys.

This package works in Xorg and Wayland since it directly reads the keys from the evdev device via libinput.

Users in group ``wheel'' can skip password authentication.

This program normalizes media files to a certain loudness level using the EBU R128 loudness normalization procedure. It can also perform RMS-based normalization (where the mean is lifted or attenuated), or peak normalization to a certain target level. Batch processing of several input files is possible, including video files.

rav1e is an AV1 video encoder. It is designed to eventually cover all use cases, though in its current form it is most suitable for cases where libaom (the reference encoder) is too slow.

MPlayer is a movie player. It plays most MPEG/VOB, AVI, Ogg/OGM, VIVO, ASF/WMA/WMV, QT/MOV/MP4, RealMedia, Matroska, NUT, NuppelVideo, FLI, YUV4MPEG, FILM, RoQ, PVA files. One can watch VideoCD, SVCD, DVD, 3ivx, DivX 3/4/5, WMV and H.264 movies.

Command line application that copies JPEG frames from one or more input plugins to multiple output plugins. It can be used to stream JPEG files over an IP-based network from a webcam to various types of viewers such as Chrome, Firefox, Cambozola, VLC, mplayer, and other software capable of receiving MJPG streams.

You-Get is a command-line utility to download media contents (videos, audio, images) from the Web. It can use either mpv or vlc for playback.

Gavl is short for Gmerlin Audio Video Library. It is a low level library, upon which multimedia APIs can be built. Gavl handles all the details of audio and video formats like colorspaces, sample rates, multichannel configurations, etc. It provides standardized definitions for those formats as well as container structures for carrying audio samples or video images inside an application.

In addition, it handles the sometimes ugly task of converting between all these formats and provides some elementary operations (copying, scaling, alpha blending etc).

L-SMASH is a cross-platform library that handles the ISO base media file format and some of its derived file formats, including MP4. It operates as a multiplexer and demultiplexer, and can mux video and audio in several formats using standalone executable files.

qtfaststart enables streaming and pseudo-streaming of QuickTime and MP4 files by moving metadata and offset information to the beginning of the file. It can also print some useful information about the structure of the file. This program is based on qt-faststart.c from the FFmpeg project, which is released into the public domain, as well as ISO 14496-12:2005 (the official spec for MP4), which can be obtained from the ISO or found online.

Open Broadcaster Software provides a graphical interface for video recording and live streaming. OBS supports capturing audio and video from many input sources such as webcams, X11 (for screencasting), PulseAudio, and JACK.

Syncplay is a solution to synchronize video playback across multiple instances of media players over the Internet. When one person pauses/unpauses playback or skips to a position in the video, this is replicated across all media players connected to the same server and in the same "room" (viewing session). A built-in text chat for discussing the synced media is also included for convenience.

Schroedinger is a project implementing the Dirac video codec in ANSI C code. It is meant to be highly optimized and portable. It is developed as a joint effort between the BBC and Fluendo.

Theorafile is a library for quickly and easily decoding Ogg Theora videos. Theorafile was written to be used for FNA's VideoPlayer.

Add source to OBS that lets you clone sources to allow different filters than the original.

libass is a subtitle rendering library for the ASS/SSA (Advanced Substation Alpha/SubStation Alpha) subtitle format.