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VLC media player

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VLC media player is a free, open-source, and cross-platform media player and streaming media server. It is managed by the VideoLAN project, a non-profit organization. Because it is open-source, the software is available for many different operating systems, including Windows, macOS, Linux, Android, and iOS. It is also available on digital platforms like the Microsoft Store, Google Play, and the Apple App Store. VLC is highly regarded for its ability to play almost any video or audio format. This flexibility makes it a vital tool for researchers, students, and casual users alike.

The software operates through a highly modular design. This means the program is built using many small, independent parts called modules or plugins.

VLC basic key mapping
VLC basic key mapping

The VLC core creates a dynamic graph of these modules based on the specific task at hand. For example, the core looks at the input protocol, the file format, and the capabilities of your video card. It then selects the correct modules for decoding, audio/video filters, and interfaces. Version 1.0.0 of the player actually contained more than 380 of these modules. This system allows VLC to support many different compression methods and file formats, such as DVD-Video and Video CD, without needing to find separate proprietary plugins.

While VLC uses many libraries, it has its own specific way of handling data. It utilizes the libavcodec library from the FFmpeg project to provide many of its codecs, which are the tools used to decode and encode media. However, the player primarily uses its own muxers and demuxers to manage how data streams are combined or separated. It also relies on its own specific protocol implementations. This internal structure allows it to perform transcoding, which is the process of converting a multimedia file from one format to another. Because it is packet-based, VLC can even play files that are incomplete or currently downloading via a peer-to-peer network.

The history of VLC began in 1996 as a French academic project. Students at the École Centrale Paris originally developed it to stream videos from satellite dishes across a campus network. At that time, it was known as the VideoLAN Client because it functioned as a client to a server. The server component was called the VideoLAN Server, or VLS, but that functionality has since been mostly absorbed into VLC. In 1998, the software was rewritten from scratch. It was officially released under the GNU General Public License on February 1, 2001. The iconic traffic cone logo is a tribute to the Networking Students' Association at École Centrale Paris.

Development of VLC has seen many significant milestones and technical leaps. After thirteen years of development, version 1.0.0 was released on July 7, 2009. Mobile versions followed, with Android support beginning in 2010 and iOS support arriving via a port by a company named Applidium. There were even legal challenges regarding the Apple App Store and licensing compatibility. To solve this, the authors began re-licensing engine parts under the LGPL-2.1 or MPL-2.0 licenses. Version 3.0, released in February 2018, introduced major features like 4K and 8K playback, 360-degree video, and 3D audio. By January 2025, the project announced it had reached more than 6 billion downloads.

VLC offers several specialized features for advanced users. On desktop versions, users can apply filters to rotate, mirror, or split videos. It can even output video as ASCII art. For audio, it includes an equalizer to customize sound quality. Users can also use the software to record their desktop screens as screencasts. If the audio and video are not synchronized, users can use the 'F' and 'G' keys to adjust the sync by 50 milliseconds at a time.

VLC basic key mapping
VLC basic key mapping

The software is also known for its ability to play encrypted DVDs on Linux and macOS by using the libdvdcss decryption library.

Beyond simple playback, VLC connects to many broader technological systems. It can stream live, unencrypted content from cable boxes via a FireWire connection. It also supports local network drive browsing and can output video to a Chromecast device. In 2017, the European Parliament even approved a budget to fund a bug bounty program for VLC. This program helps improve the IT infrastructure of the European Union by finding and fixing software errors. Recently, the project has looked toward the future of technology by demonstrating offline AI-powered translation and subtitling at CES 2025.

VLC screenshot for Android
VLC screenshot for Android
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