Help:Creation and usage of media files

Images, audio and video files must be uploaded into Wikipedia using the "Upload file" link on the left-hand navigation bar. Only logged in users can upload files. Once a file is uploaded, other pages can include or link to the file. Uploaded files are given the "File:" prefix by the system, and each one has an image description page. Please consider uploading freely licensed content to the Wikimedia Commons instead of here. This allows the files to be used in articles instantly by all Wikimedia projects. Files from Wikimedia Commons use the same syntax described below, there is no extra step needed. The maximum size of an uploaded file is 100 megabytes. The following file types may be uploaded: png, gif, jpg/jpeg, xcf, pdf, mid, ogg/ogv/oga, svg, djvu and webm. note: pdf and djvu are intended primarily for projects like Wikisource.

If you want to give a link to the file description page in an article, use an extra colon at the front, e.g., " ". If you type " ", a download link to the media file is created. The page name will contain the file type such as pagename.jpg.

Special characters and math
It is not necessary to upload images to use special characters or even complex mathematical expressions.

Wikipedia uses a UTF-8 encoding scheme, which means that any Unicode character can and should be entered directly. See m:Help:Special characters for details and help. (You can also use SGML entities for certain characters, such as  for & or   for é.)

For mathematical formulae, we use TeX markup. For help and instructions, see m:Help:Formula.

Text files
Please do not upload plain text (.txt), Microsoft Word (.doc), or text files in other formats. Instead, please start a new page and input the text using standard wiki formatting. Please do not dump text into Wikipedia unless you wrote it yourself, or you know that it meets the project's stringent copyright licensing requirements.

In rare cases an HTML file is uploaded, for example as a test or demonstration.

Occasionally a PDF file is uploaded. However, most PDFs should be converted into wikitext. Source documents should be uploaded to Wikisource instead.

For a discussion on uploading spreadsheets, see the talk page.

Images
Typically the first step in using an image or other media file is to upload it to Wikimedia Commons, but for legal reasons, some files must be uploaded to the English Wikipedia instead. Upload helps you to choose between these options.

Images can be displayed directly on Wikipedia pages.

The preferred formats are JPEG for photographic images and Scalable Vector Graphics (SVG) for drawings, though PNG can also be used. Vector graphics are preferred to raster graphics for drawings, because they can be scaled as needed without losing information, and can be edited more easily.

Image usage
Type " " when you want to display an image file directly. In most cases, a thumbnail is more useful: " ". See Picture tutorial for further information.

Audio
Wikipedia uses the Ogg Vorbis, FLAC and WAV format for audio, as they are not encumbered by patents (an issue that prompted the decision in 2004 that MP3 files would not be hosted at Wikipedia ). Since then, the MP3 patents have expired and Wikimedia legal has given permission to allow uploading as needed by Wikimedia or its communities.

Software supporting Vorbis exists for many platforms. Mozilla Firefox 4, Opera 10.5 and Google Chrome 3 and later each include their own support for Ogg Vorbis files. As for multimedia players, Winamp can be used to play Ogg Vorbis files. Although iTunes does not natively support Vorbis, Xiph.Org provides a QuickTime component which can be used in players that rely on QuickTime, such as iTunes, on both Microsoft Windows and Mac OS. DirectShow filters exist to decode Vorbis in multimedia players like Windows Media Player and others which support DirectShow.

Useful software for audio:
 * For audio editing, Audacity is a high quality free audio recorder/editor for Windows, Macintosh, and Linux/Unix.
 * Sweep is another free audio editor which can be used in Linux environments.
 * For encoding to Ogg Vorbis, it is recommended that you use Hydrogenaudio-recommended encoders for best results. oggenc (cross-platform) is the command-line encoder, while OggDropXPd (Windows-only) is an easy-to-use GUI for encoding to Ogg Vorbis.
 * dBpowerAMP Music Converter (proprietary, Windows-only) offers a convenient GUI for transcoding between most audio codecs, including Ogg Vorbis. The Vorbis encoder must be downloaded separately from the software, but it is freely available from the same website.
 * The easiest way to play Ogg Vorbis files on legacy Macintoshes (OS 9 and earlier) is to use JustOgg.

The Vorbis Software Players node at the xiph.org wiki has an up-to-date list of Vorbis-supporting software for all operating systems. Users can test these players using the list of Vorbis audio streams available at.

Audio usage
Most viable is to use Template:Listen, see its page for detailed description, common usage is listed here:



Example:

There are several other audio templates used primarily for demonstrating pronunciation of foreign languages or obscure terms, such as audio-IPA. When adding a sound file to an article, such as English language or Irish phonology avoid using a template that only links to the raw sound file, as this effectively hides important licensing information that allows readers to see who created and uploaded the file, its source and under what license it was published.

Lists of uploaded music

 * Sound/list
 * Sound/list/playlist

Lists of uploaded spoken articles

 * Spoken articles

Further information on audio files

 * Music samples
 * Category:Wikipedia requested audio of songs
 * WikiProject Free music
 * Wikipedia Signpost/2005-02-14/Music recordings
 * Media help (MIDI)
 * Media help (Ogg)
 * WikiProject Composers/Guidelines for using sound excerpts

Video
Wikipedia uses WebM and Ogg Theora for video because they are open source and royalty-free. Since most popular movie/audio formats are patented and require a royalty, there are no free all-purpose video converters. See also WikiCommons' Theora video conversion help page.

Limitations and implementation issues

 * Both the Wikipedia project and the Wikimedia Commons limit uploads to a maximum of 100 megabytes (though it is possible to upload larger files using chunked uploads).

Useful software

 * For video, ffmpeg2theora is a command line encoder capable of converting numerous file formats (.mov, .mpg, .mpeg, .avi) into Ogg Theora. It works on Windows, Macintosh, and Linux/Unix. (how to use ffmpeg2theora.)
 * You can also use the encoder_example application included with libtheora in combination with a program like MPlayer that is capable of dumping raw (yuv4mpeg) video and sound to encode in Ogg Theora
 * http://programmer-art.org/projects/arista-transcoder and http://www.linuxrising.org/transmageddon/ are graphical transcoders for Unix / Linux
 * Kdenlive, OpenShot, and other video programs are available for Linux that can edit Theora and WebM videos
 * The directshow filters can be used to encode Ogg Theora using GraphEdit.
 * The Xiph.org wiki has a list of Theora Software Encoders
 * handbrake is a free (GPL'd) transcoder for Windows, Mac, and Linux
 * Adobe Premiere Pro can export videos directly in WebM format by using the free fnordware plugin (Win/Mac).

For assistance with conversion, consider contacting the following editors:
 * Raul654
 * Gmaxwell (Linux only)
 * GChriss (Linux only)
 * Makaristos (macOS and Linux)
 * Alton (macOS)
 * Ivo (all platforms)

Embedding video


The easiest way to embed video directly into an article is by using the same tag as for image files. The result is on the right.



Setting a video thumbnail image
By default, a frame from the midpoint of the video is used for the initial still image. To use a different frame, use the thumbtime parameter. For instance:



Specify the time in seconds, or use colons to separate hours, minutes and seconds.

Temporal media fragments
Allows embed code to reference a segment of the video stream or set a start time. Hover over the player to see start time listed as 5s, press play and notice it stops playback at 7 seconds.

One can also use MM:SS or HH:MM:SS format for start and end.

Note: This is not yet supported on Safari and Internet Explorer.

Linking to a video
There are two types of links to a video:
 * – To create a link to the video's File Description Page,
 * use.
 * To make the text of a link to the video's File Description Page appear as some text other than the video's filename, use.
 * – To create a link that downloads the video,
 * use  or use.
 * To make the text of a link that downloads the video appear as some text other than the video's filename, use  or use.

Related WikiProjects

 * WP:WikiProject Wiki Makes Video
 * WP:WikiTV
 * List of WikiTV & WikiVideo projects

Moving files to Commons
Many files have been uploaded to Wikipedia. A long-term project under way is to move free content files—including images and audio—to Wikimedia Commons. Commons provides a central location for files for use on all Wikimedia Foundation projects.

Commons employs more restrictive policies on copyright issues than the English Wikipedia does; for instance, fair-use images such as most images of album cover art cannot be hosted on Commons.