microsoft edge not working when on youtube

Adding WebM, VP9 and Opus to Microsoft Edge means the full experience on these websites will be possible in the Edge browser. They are used together by some prominent websites – notably YouTube – that value them for this efficiency, especially on content with greater than 1080p resolution. Opus, similarly, is a very efficient open source audio codec. VP9 is an open source video codec that has efficient compression well suited to HD and 4K streaming. It defines the specifics of using VP9 and Opus with MSE.

The WebM Byte Stream Format has existed for some time. More recently, we added support within MP4 for H.265/HEVC video and Dolby Digital multi-channel audio, formats targeted at high-performance media. Microsoft has been providing support for Media Source Extensions (MSE) since Windows 8.1, initially through support for ISO-Base Media File Format (ISO-BMFF) content that uses fragmented MP4 containers with H.264/AVC video and AAC audio. To try them in Microsoft Edge, please install the most recent Windows 10 Insider Build. We are adding support for these formats to simplify building interoperable websites, and to provide an alternative format for compressing 4K video content. Opus is the primary audio codec paired with VP9 in the WebM specification. Opus was developed by the Xiph Foundation to support both bandwidth-efficient speech/RTC applications as well as high-quality media playback – all within one codec. The VP9 and WebM project team recently joined the Alliance for Open Media effort where their work on VP9 is expected to be a significant contribution to the next generation of open-source, royalty-free video codecs. VP9 is an efficient open source video codec developed as part of the WebM Project by Google. This change will be available in stable releases starting with the Windows 10 Anniversary Update. Windows Web Apps (built on the same Edge APIs) will also be able to use WebM streams containing VP9 and Opus. These are available to websites that use Media Source Extensions (MSE) to adaptively stream video content.

Starting with EdgeHTML 14.14291, the open-source WebM container format and the VP9 video and Opus audio codecs are supported in Microsoft Edge.

Microsoft edge not working when on youtube