Mime type file extension

As for MIME types of audio or video files, they typically specify the container format file type. The optional codecs parameter can be added to the MIME type to further specify which codecs to use and what options were used to encode the media, such as codec profile, level, or other such information. The most commonly used MIME types used for web content are listed below. This isn't a complete list of all the types that may be available, however.

See the media container formats guide for that. As a multipart document format, it consists of different parts, delimited by a boundary a string starting with a double dash When the Partial Content status code is sent, this MIME type indicates that the document is composed of several parts, one for each of the requested ranges.

Like other multipart types, the Content-Type uses a boundary to separate the pieces. Each piece has a Content-Type header with its actual type and a Content-Range of the range it represents. For security reasons, most browsers do not allow setting a custom default action for such resources, forcing the user to save it to disk to use it.

Each browser performs MIME sniffing differently and under different circumstances. There are security concerns as some MIME types represent executable content. Discrete types The discrete types currently registered with the IANA are: application Any kind of binary data that doesn't fall explicitly into one of the other types; either data that will be executed or interpreted in some way or binary data that requires a specific application or category of application to use.

Registration at IANA text Text-only data including any human-readable content, source code, or textual data such as comma-separated value CSV formatted data. Multipart types Multipart types indicate a category of document broken into pieces, often with different MIME types; they can also be used — especially in email scenarios — to represent multiple, separate files which are all part of the same transaction.

There are two multipart types: message A message that encapsulates other messages. Vorbis and Opus are the codecs officially supported by the WebM specification. Vorbis is the most common audio codec used in such a container; however, Opus is now supported by Ogg as well.

Theora is the usual video codec used within it; Vorbis is the usual audio codec, although Opus is becoming more common. Theora is the usual video codec used within it; Vorbis is the usual audio codec. Some common incorrect server configurations: RAR-compressed files. In this case, the ideal would be the true type of the original files; this is often impossible as.

RAR files can hold several resources of different types. Audio and video. Be sure to specify the correct media type for audio and video. Proprietary file types. MIME types are not the only way to convey document type information: Filename suffixes are sometimes used, especially on Microsoft Windows. Here's a broad list of MIME types by application and file extension. This list details common sound file MIME types by file extension and application.

Image files also come in various MIME types by application. Mail message files come in these MIME types and file extensions. You might encounter text files in the following MIME types and with these familiar file extensions. This table lists video file MIME types and commonly used applications. This list covers virtual world file MIME types by application. If a server reports an unknown MIME type, your browser won't be able to properly display the content.

Some browsers will try to guess the MIME type, which can result in unexpected behavior. Other browsers will display unknown content as plain text or not at all. It's an encryption standard you can use to encrypt emails in Gmail and other email clients that support it.

Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. This is undoubtely a major issue that might leads some to prefer the following method instead.

There are many of them available throughout the web: I used to have mine too, until I found this great GitHub project that covers a gigantic amount of them: it also includes an efficient and deterministic two-way mapping, so you can also use it the other way around retrieve the extension from a given MIME type.

A big thanks to Samuel Neff for the great work! NET 4. Web namespace — System. GetMimeMapping — which finally exposes the System. Reflections namespace: the credits for such technique go to this awesome post from David Haney , which happens to be the Engineering Manager of the StackOverflow web portal. November 30, November 30, November 18, November 18, November 14, November 14, Since it's also a lead designer for many App and games for Android, iOS and Windows Phone mobile devices for a number of italian companies.

Your email address will not be published. Aggiungi e-mail alla newsletter. Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed. Contains ". GetExtension fileNameOrExtension.