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

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

video/x-smv is the MIME type for files encoded in the SigmaTel Motion Video format.

This type tells your system that the file is a video using SigmaTel’s proprietary compression method. Files with this MIME type usually carry the SMV extension.

Purpose: It helps programs recognize and process these specific motion video files.
Functionality: It enables playback by media players that support SigmaTel codecs, ensuring the video is correctly decoded.
Use Cases: It is seen in devices or software that rely on older multimedia technology, and sometimes in specialized legacy systems.

Because it is a niche format, you may need specific players or additional codecs to view these videos. For further details on MIME types, visit this reference.

Associated file extensions

.smv

Usage Examples

HTTP Header

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


    Content-Type: video/x-smv

HTML

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


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

Associated file extensions

.smv

FAQs

What is the video/x-smv MIME type used for?

video/x-smv is the identifier for SigmaTel Motion Video files. These files are typically found on older portable media players that use SigmaTel chips to play low-resolution video content efficiently.

Can I play video/x-smv files in a web browser like Chrome or Firefox?

No, modern web browsers do not natively support the video/x-smv format. To display this video on a website, you must convert the file to a standard web-compatible format like video/mp4 or video/webm.

How do I open a file with the .smv extension?

Standard media players like Windows Media Player or QuickTime usually cannot open .smv files. You typically need the specific "AMV/SMV Convert Tool" that came with the original device, or you can try using a versatile player like VLC Media Player.

How do I configure my web server to handle .smv files?

If you need to host these files for download, you must configure your server to recognize the extension. For Apache, add AddType video/x-smv .smv to your .htaccess file. For Nginx, add types { video/x-smv smv; } to your configuration.

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

The x- prefix in video/x-smv indicates that it is a non-standard or proprietary type not officially registered with IANA. It denotes that the format belongs to a specific vendor (SigmaTel) rather than being an open industry standard.

Is video/x-smv the same as video/x-amv?

They are related but distinct formats used by similar low-cost media players. While both are proprietary formats for specific chipsets, SMV (SigmaTel Motion Video) is designed for SigmaTel chips, whereas AMV (Actions Media Video) is used for Actions semiconductor chips.

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.