SfB broadcast : producer controls

I happened to stumble upon pretty much exactly what I was talking about - a cheap consumer orientated video control desk https://www.elgato.com/en/gaming/stream-deck.

An SfB Broadcast API which would allow makers of this sort of device (and indeed more professional desks that could for e.g. control lighting camera zoom / pan / tilt etc etc) to control the Broadcast meeting would be a massive upgrade to the Broadcast tool capability. Keep it really simple with anybody can be a producer and the current set up as the default but have a pre-defined producer option at broadcast set up which either gives the producer richer controls within the producer's SfB screen (or associated App) or allows control via an API and the Elgato type desk.  If I am about to broadcast to 10K people I would much prefer to be pressing a physical button to a mouse click if there is any chance of broadcasting the CEO "picking his nose" because he isn't supposed to be "on air" just yet.

Also - in that same vain, there is the 20 second or so transcoding delay. At present that is being used to do transcriptions for captions. A broadcast kill switch (or bleep out) would also be a useful addition. In a public company conference call situation the company lawyer could be sat with his fingerover the button in case the CEO accidentally blurts out information which would be an SEC violation. Or, of course, someone blurts out something profane or defamatory. When you start broadcasting essentially live to large numbers of people these things start to matter and a lot of people using the service will be relative novices at broadcast - that's the point and it is great to give that capability but it does create potential issues and richer broadcast controls / a hardware interface API would help reduce those risks.