Re: A proposal for how we would use the SDP that comes out of the MMUSIC interm

On Tue, Oct 13, 2015 at 7:19 AM, Cullen Jennings (fluffy) <>

> > On Oct 9, 2015, at 10:14 AM, Byron Campen <> wrote:
> >
> >> dictionary RTCRtpEncodingParameters {
> >>   double scale;  // Resolution scale
> >>   unsigned long rsid;  // RTP Source Stream ID
> >>   // ... the rest as-is
> >> }
> >    I am skeptical that a resolution scale is the right tool for
> "full/postage stamp", which is the primary use case for simulcast. A
> conferencing service is probably going to want to define the postage stamp
> as a fixed resolution (and probably framerate), not a scale of the full
> resolution that can slide around.
> I Agree.
> And we also need to deal with the case where the small is not even the
> same aspect ratio as the large as that is a very common use case. I think
> we need max width, max height and do our usual thing of fixing it to
> landscape mode and then using other things to deal with rotation.

​If you think RTCRtpEncodingParameters​

​should have a .maxWidth and .maxHeight, then make a PR and propose it on
the list.

Received on Tuesday, 13 October 2015 14:56:52 UTC