On 10/3/14 1:23 AM, [email protected] wrote:
On Sunday, September 21, 2014 3:56:32 AM UTC+8, [email protected] wrote:
Thanks Jan-Ivar for your explanation.

The warning is not a big issue by itself, nut I thought I was missing something 
(I am rather new to webRTC...)
I have the other problem. When I creating offer by using "{'mandatory': {'OfferToReceiveAudio': true, 'OfferToReceiveVideo': 
true}}", FF 33 will tell me "Mandatory/optional in createOffer options is deprecated! Use 
{"offerToReceiveAudio":true,"offerToReceiveVideo":true} instead (note the case difference)!". However, the offer 
is still created successfully and function onCreateOfferSuccess is called. But if I use "{'mandatory': {'offerToReceiveAudio': true, 
'offerToReceiveVideo': true}}" to create the offer again, FF 33 will call function onCreateSessionDescriptionError. The error is 
"Cannot create SDP without any streams.".
That sounds like a bug to me, which probably got introduce when the new constraints got implemented. If you haven't done it already I would appreciate if you could file a bug report on Bugzilla about that.

Thx
  Nils Ohlmeier
Will this behavior be in FF 33 official release? Or this is a bug? In my case, 
I only want to receive the remote video stream, so I needn't get any local 
media stream. Or what shall I do if I only want to receive remote media streams?

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