What you're missing: - multiple audio tracks for different languages - support of captions - support of multi-resolution/bitrate streams (like DASH) - support

What you're missing: - multiple audio tracks for different languages - support of captions - support of multi-resolution/bitrate streams (like DASH) - support for "multi-view" or however you want to call it: the viewer chooses wether to see speaker, slides or both - ....