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 code forms a set of C++ libraries for multimedia streaming, using open standard protocols (RTP/RTCP, RTSP, SIP). The libraries can be used to stream, receive, and process MPEG, H.265, H.264, H.263+, DV or JPEG video, and several audio codecs. They can easily be extended to support additional (audio and/or video) codecs, and can also be used to build basic RTSP or SIP clients and servers.

srt2vtt converts SubRip formatted subtitles to WebVTT format for use with HTML5 video.

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

uosc is a minimalist interface for mpv. It hides and shows elements based on cursor proximity and offers configurable controls, thumbnails, and tools for selecting subtitles, audio, and video tracks, and downloading subtitles. Menus are searchable and support mouse scroll wheel.

Matroska aims to become the standard of multimedia container formats. It is based on EBML (Extensible Binary Meta Language), a binary derivative of XML. EBML enables the Matroska Development Team to gain significant advantages in terms of future format extensibility, without breaking file support in old parsers. libebml is a C++ library to read and write EBML files.

AA-lib is a low level gfx library which does not require graphics device. In fact, there is no graphical output possible. AA-lib replaces those old-fashioned output methods with powerful ascii-art renderer.

This package provides the GameStream code shared between Moonlight clients.

GPAC is a multimedia framework focused on modularity and standards compliance. GPAC provides tools to process, inspect, package, stream, playback and interact with media content. Such content can be any combination of audio, video, subtitles, metadata, scalable graphics, encrypted media, 2D/3D graphics and ECMAScript.

libbluray is a library designed for Blu-Ray Disc playback for media players, like VLC or MPlayer.

libmpeg2 is a library which can decode MPEG1 and MPEG2 video streams.

SMPlayer is a graphical user interface (GUI) for MPlayer, which is capable of playing almost all known video and audio formats. Apart from providing access for the most common and useful options of MPlayer, SMPlayer adds other interesting features like the possibility to play Youtube videos, download subtitles, remember the last played position, etc.

libplacebo is, in a nutshell, the core rendering algorithms and ideas of mpv rewritten as an independent library. As of today, libplacebo contains a large assortment of video processing shaders, focusing on both quality and performance.

libvpx is a codec for the VP8/VP9 video compression format.

This is a plugin to streaming to multiple RTMP servers concurrently. It's able to share encoders with main output of OBS to save CPU power. It can also use standalone encoders with basic configuration (bitrate).

GTK+ UVC Viewer (guvcview) is a graphical application to control a webcam accessible with Video4Linux (V4L2) and to capture videos and images. It provides control over precise settings of the webcam such as exposure, brightness, contrast, and frame rate.

This is a collection of utilities to query and test the VA-API implemented by the libva library.

These tools require a supported graphics chip, driver, and VA-API back end to operate properly.

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).

Gaupol supports multiple subtitle file formats and provides means of creating subtitles, editing texts and timing subtitles to match video. The user interface features a builtin video player and is designed with attention to convenience of translating and batch processing of multiple documents.

MediaSDK provides a plain C API to access hardware-accelerated video decode, encode and filtering on Intel's Gen graphics hardware platforms.

SMPEG (SDL MPEG Player Library) is a free MPEG1 video player library with sound support. Video playback is based on the ubiquitous Berkeley MPEG player, mpeg_play v2.2. Audio is played through a slightly modified mpegsound library, part of splay v0.8.2. SMPEG supports MPEG audio (MP3), MPEG-1 video, and MPEG system streams.

Libmpeg3 decodes MP2, MP3, AC3, MPEG-1 video, MPEG-2 video, and DVD footage in a single library. It supports many esoteric features like parallel video decoding, frame-accurate editing, YUV 4:2:2, and ATSC transport stream decoding

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.

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.