FEC ssrc

Hi all,

One question, in the current draft it is stated:


        9.10.1Dictionary|RTCRtpFecParameters|
        <http://ortc.org/wp-content/uploads/2014/08/ortc.html#idl-def-RTCRtpFecParameters>Members

|mechanism|of typeDOMString

    The Forward Error Correction (FEC) mechanism to use.

|ssrc|of typeunsigned long

    The SSRC to use for FEC.


But according to RFC 5190:

    Synchronization Source (SSRC): The SSRC value SHALL be the same as
    the SSRC value of the media stream it protects.


So it doesn't seem right to allow configuring the ssrc of the FEC stream

Best regards
Sergio