WebM
Audiovisual media file format / From Wikipedia, the free encyclopedia
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WebM is an audiovisual media file format.[5] It is primarily intended to offer a royalty-free alternative to use in the HTML5 video and the HTML5 audio elements. It has a sister project, WebP, for images. The development of the format is sponsored by Google, and the corresponding software is distributed under a BSD license.
Quick Facts Filename extension, Internet media type ...
Filename extension |
.webm |
---|---|
Internet media type |
video/webm, audio/webm |
Developed by | Initially On2, Xiph, and Matroska; later Google |
Initial release | May 18, 2010; 13 years ago (2010-05-18)[1] |
Latest release | |
Type of format | Container format |
Container for | VP8/VP9/AV1 (video) Vorbis/Opus (audio) |
Extended from | Limited subset of Matroska |
Open format? | Yes[3] |
Free format? | Yes[4] |
Website | webmproject.org |
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The WebM container is based on a profile of Matroska.[3][6][7] WebM initially supported VP8 video and Vorbis audio streams. In 2013, it was updated to accommodate VP9 video and Opus audio.[8] It also supports the new AV1 codec.[9]