Opus support

Are you planning to add Opus support? According to https://developer.mozilla.org/en-US/docs/HTML/Supported_media_formats#Browser_compatibility it is supported in FF 15+ and Chrome 27+.

The obvious way would be to add opus= parameter and use ‘audio/ogg; codecs=opus’ as the mime type (haven’t tested this, but it should be skipped by browsers that support Vorbis but not Opus).

http://ww.wp.xz.cn/plugins/pb-oembed-html5-audio-with-cache-support/