What is MIME type "video/x-fli"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The MIME type video/x-fli designates an animation format from older software. It tells systems that the file holds a sequence of images meant to play like a video.

Files with this MIME type use the FLI extension. They were widely used in early multimedia projects, such as simple animations and retro video games.

Animation Playback: Stores frame-by-frame animations for smooth video-like display.
Legacy Multimedia: Common in early video software and classic computer games.
Artistic Projects: Favoured for retro-style presentations and digital art remakes.

Modern systems often require special applications to play video/x-fli files. Specialized legacy media players and converters can handle these older animation files. For more details, you might explore resources on MIME types at Mozilla MDN.

Associated file extensions

.fli

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: video/x-fli

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="video/x-fli">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');    
    
    http.createServer((req, res) => {    
      res.setHeader('Content-Type', 'video/x-fli');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.fli

FAQs

How can I open a video/x-fli file on modern operating systems?

Because video/x-fli is a legacy format, default players like Windows Media Player often cannot open it. You should use a versatile third-party media player like VLC Media Player or MPlayer, which include the necessary codecs to decode these older Autodesk Animator files.

Do web browsers support video/x-fli playback?

No, modern browsers (Chrome, Firefox, Safari) do not natively support the video/x-fli MIME type. If you embed a .fli file on a webpage, the browser will likely force a download instead of playing it. For web use, convert the file to video/mp4 or image/gif.

How do I convert FLI files to a modern format?

You can use the command-line tool FFmpeg to convert legacy animations to modern standards. Running a command like ffmpeg -i input.fli output.mp4 will transcode the file, making it compatible with current devices and web standards found on mime-type.com.

How do I configure Apache or Nginx to serve .fli files correctly?

For Apache, add AddType video/x-fli .fli to your .htaccess or config file. For Nginx, add video/x-fli fli; inside the types { } block in your mime.types file. This ensures the server identifies the file correctly, even if the browser cannot play it.

What is the difference between video/x-fli and video/flc?

The video/x-fli type usually refers to the original FLI format, which was limited to a 320x200 resolution. The FLC format is a successor that supports higher resolutions and variable frame rates, though both are often handled by the same legacy software and libraries.

Why does the MIME type start with 'video/x-'?

The x- prefix indicates that the MIME type was non-standard or experimental when it was introduced. Since FLI is a proprietary format created by Autodesk for early DOS software, it was never standardized by IANA as a primary video type like video/mpeg.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.