N42 and N47 partly overlapping

[stefhak]

N42: The WebRTC connection can generate signals indicating the desired bandwidth and any demands for keyframes, and surface those to the application.

N47: The WebRTC connection can generate signals indicating demands for keyframes, and surface those to the application.

Perhaps the "and any demands for keyframes" part of N42 should be scrapped?

[alvestrand]

Keeping them orthogonal seems good to me.

BTW, N47 is probably satisfied by w3c/webrtc-encoded-transform#215

[stefhak]

OK, perhaps we should have a table or something recording what requirements are (becoming) satisfied, and how. There is also the comment "This requirement is addressed by jitterBufferTarget, defined in [WebRTC-Extensions] Section 6." for N38.