Via Xiph QuickTime Components (macOS 10.11 and earlier) Since 18.0 (with AV1 Video Extension) Īndroid, iOS, Symbian, and Windows Mobile Since 17.0 (supports tag with Web Media Extensions and VP9 Video Extensions)
Only enabled by default if hardware decoder present Unix-like, Android, macOS, iOS, and Windows Status of video format support in each web browser
In general, the format support of browsers is much dictated by conflicting interests of vendors, specifically that Media Foundation and QuickTime support commercial standards, whereas GStreamer and Phonon cannot legally support other than free formats by default on the free operating systems that they are intended for. At the other end of the scale, Konqueror has identical format support to Internet Explorer when run on Windows, and Safari when run on Mac, but the selected support here for Konqueror is the typical for GNU/Linux, where Konqueror has most of its users. In practice, Internet Explorer and Safari can also guarantee certain format support, because their manufacturers also make their multimedia frameworks. Of these browsers, only Firefox and Opera employ libraries for built-in decoding.
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