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

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-dirac is for files encoded with the Dirac video codec. It handles video data with an open, high-quality compression method.

This codec was developed by the BBC as an open and royalty-free option. It is often used within an Ogg container. The corresponding file is commonly packaged with the extension DRC.

Digital Broadcasting: Used in streaming and TV transmission.
High-Quality Playback: Ideal for maintaining video quality in media applications.
Archival Storage: Chosen for preserving video content over time.
Media Editing: Integrated into workflows where precision is key.

Media players like VLC support this codec. Developers can also integrate it into multimedia applications. For further reading on the Dirac codec, check out the Wikipedia page on Dirac.

Associated file extensions

.drc

Usage Examples

HTTP Header

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


    Content-Type: video/x-dirac

HTML

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


    <a href="file.dat" type="video/x-dirac">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-dirac');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.drc

FAQs

How do I open a file with the video/x-dirac MIME type?

You need a media player that supports the Dirac codec, such as VLC Media Player or MPlayer. Standard system players like Windows Media Player or QuickTime usually cannot open .drc files without installing specific codec packs.

Do web browsers natively support video/x-dirac?

No, modern browsers like Chrome, Firefox, and Safari do not natively support the Dirac codec. To display video on a webpage, it is highly recommended to convert the file to a widely supported format like video/mp4 (H.264) or video/webm.

How do I configure Apache to serve .drc files correctly?

You can enable support by adding the MIME type definition to your .htaccess file or main configuration. Add the following line: AddType video/x-dirac .drc.

What is the correct Nginx configuration for video/x-dirac?

To ensure Nginx serves the file with the correct headers, add the entry to your mime.types file or inside the types block in nginx.conf: video/x-dirac drc;.

What does the "x-" prefix indicate in this MIME type?

The x- prefix stands for "experimental" or "extension," indicating that the type was not a standard IANA-registered type when it was introduced. While Dirac is a valid open technology, video/x-dirac remains the common identifier for these streams.

Is video/x-dirac the same as Ogg Theora?

No, although both are open video formats often found inside Ogg containers. Dirac is a wavelet-based codec developed by the BBC for high-quality streaming, while Theora is a different compression standard derived from VP3.

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.