Opus: Need data for MP4 and WebM containers #6805
Description
Opus has an ISOBMFF (MP4) encapsulation defined in 2016. There may be differences in supporting the base Ogg format, in WebM container, and in the MP4/M4A container. MP4 can reasonably used in the <audio> tag: M4A/AAC files are an example.
I know that Opus WebM with up to 2 channels is okay in safari, but Opus Ogg is not okay in Safari at all.