Re: [webrtc-pc] More simulcast examples (#2035)

`RTCEncodingParameters` for `maxFramerate` and `maxBitrate` etc. are not all supported. some of them are simply ignored (or verify that they are not set).
simulcast alternatives appears in the [simulcast spec](https://tools.ietf.org/html/draft-ietf-mmusic-sdp-simulcast-13#section-5.1). I'll use SDP as an example:
a=simulcast:send 1;2,3 recv 4
means that i want to send only 2 layers. Rid '1' will be the first layer, and i am specifying rids '2' and '3' as alternatives for the second layer (in preference order).

I do not see any way for the user to signal this to the platform at the moment. I do see a way for the platform to "unroll" the list of all supported formats and artificially create an alternative list, but i think that might be overkill, because it will make negotiation much more difficult.

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Received on Tuesday, 4 December 2018 22:20:08 UTC