MKVToolNix provides tools for getting information about Matroska files (mkvinfo), extracting tracks/data from Matroska files (mkvextract), and creating Matroska files from other media files (mkvmerge).

Yle-dl is a command line program for downloading media files from the video streaming services of the Finnish national broadcasting company Yle.

Youtube-viewer searches and plays YouTube videos in a native player. It comes with various search options; it can search for videos, playlists and/or channels. The videos are streamed directly in a selected video player at the best resolution (customizable) and with closed-captions (if available). Both command-line and GTK2 interface are available.

FFmpegthumbnailer is a lightweight video thumbnailer that can be used by file managers to create thumbnails for your video files. The thumbnailer uses ffmpeg to decode frames from the video files, so supported videoformats depend on the configuration flags of ffmpeg.

Frei0r is a minimalistic plugin API for video effects. The main emphasis is on simplicity for an API that will round up the most common video effects into simple filters, sources and mixers that can be controlled by parameters. Frei0r wants to provide a way to share these simple effects between many applications, avoiding their reimplementation by different projects. It counts more than 100 plugins.

VapourSynth is a C++ library and Python module for video manipulation. It aims to be a modern rewrite of Avisynth, supporting multithreading, generalized colorspaces, per frame properties, and videos with format changes.

OpenShot Library (libopenshot) is a powerful C++ video editing library with a multi-threaded and feature rich video editing API. It includes bindings for Python, Ruby, and other languages.

MediaInfo is a library used for retrieving technical information and other metadata about audio or video files. A non-exhaustive list of the information MediaInfo can retrieve from media files include:

• General: title, author, director, album, track number, date, duration...

• Video: codec, aspect, fps, bitrate...

• Audio: codec, sample rate, channels, language, bitrate...

• Text: language of subtitle

• Chapters: number of chapters, list of chapters

MediaInfo supports the following formats:

• Video: MKV, OGM, AVI, DivX, WMV, QuickTime, Real, MPEG-1, MPEG-2, MPEG-4, DVD (VOB)...

• Video Codecs: DivX, XviD, MSMPEG4, ASP, H.264, AVC...)

• Audio: OGG, MP3, WAV, RA, AC3, DTS, AAC, M4A, AU, AIFF...

• Subtitles: SRT, SSA, ASS, SAMI...

svtplay-dl allows downloading TV programmes from various Swedish broadcasters including SVT Play, Sveriges Radio, TV4 Play, along with many others.

This package provides a terminal based YouTube player and downloader. It does not require a Youtube API key.

Celluloid is a simple GTK+ frontend for the mpv media player. It interacts with mpv via the client API exported by libmpv, allowing access to mpv's powerful playback capabilities.

TSLib is a cross-platform library that provides access to touchscreen devices and the ability to apply filters to their input events.

Subdl is a command-line tool for downloading subtitles from opensubtitles.org. By default, it will search for English subtitles, display the results, download the highest-rated result in the requested language and save it to the appropriate filename.

x265 is a H.265 / HEVC video encoder application library, designed to encode video or images into an H.265 / HEVC encoded bitstream.

This package provides an OBS plugin for copy and paste scenes, sources and filters.

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.

SVT-AV1 is an AV1 codec implementation. The encoder is a work-in-progress, aiming to support video-on-demand and live streaming applications with high performance requirements. It mainly targets Intel-compatible CPUs (x86), but has limited support for other architectures.

This package allows an ffmpeg command to run with progress. It is usually a complement to ffmpeg-normalize.

lsdvd provides output about the types of video, audio tracks and subtitles. Output is available in a number of formats including human readable, perl, ruby or xml.

The main motivation for VA-API (Video Acceleration API) is to enable hardware accelerated video decode/encode at various entry-points (VLD, IDCT, Motion Compensation etc.) for prevailing coding standards (MPEG-2, MPEG-4 ASP/H.263, MPEG-4 AVC/H.264, and VC-1/VMW3).

Composite Blur Plugin is a comprehensive blur plugin that provides blur algorithms and types for all levels of quality and computational need.

• Composite Blur provides several highly optimized blur algorithms including Gaussian, Multi-Pass Box, Dual Kawase, and Pixelate.

• Composite Blur provides multiple blur effects to give a different look and feel to the blur including Area, Directional, Zoom, Motion, and Tilt-Shift.

• Composite Blur also allows setting a Background Source so that it can properly composite blurred masks, allowing you to properly layer blurred sources.

• Finally, Composite Blur provides an option to mask where and how much blurring occurs on the source via Crop, Rectangle, Circle, Source, and Image masks.

libdvdcss is a simple library designed for accessing DVDs like a block device without having to bother about the decryption.

FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. It includes the libavcodec audio/video codec library.

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.