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Re: What happened to onaddstream?

From: Stefan Håkansson LK <stefan.lk.hakansson@ericsson.com>
Date: Tue, 23 Jun 2015 10:18:13 +0000
To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
CC: Harald Alvestrand <harald@alvestrand.no>, Martin Thomson <martin.thomson@gmail.com>, "public-webrtc@w3.org" <public-webrtc@w3.org>, Peter Thatcher <pthatcher@google.com>
Message-ID: <1447FA0C20ED5147A1AA0EF02890A64B1D28A402@ESESSMB209.ericsson.se>
On 23/06/15 12:05, Silvia Pfeiffer wrote:
> On Tue, Jun 23, 2015 at 7:48 PM, Stefan Håkansson LK
> <stefan.lk.hakansson@ericsson.com> wrote:
>> On 22/06/15 21:38, Harald Alvestrand wrote:
>>> On 06/22/2015 06:20 PM, Martin Thomson wrote:
>>>> It's gone from the spec.  Everyone implements it.  It would seem to be
>>>> necessary to document it, even if it is only under a "legacy" heading.
>>>>
>>> It went away when addStream() went away.
>>>
>>> Instead we have a "track" event that carries an RTCTrackEventInit,
>>> containing a receiver, a track and an array of streams (section 5.4).
>>>
>>> It might be nice to have a separate "stream" event that fires only when
>>> a new stream has been created; I don't think it's trivial to shim the
>>> "stream" event based on only the information in "track" events.
>>
>> I agree that it is not trivial for the more advanced use cases. But for
>> the simple ones that use only one MediaStream (with one audio and one
>> video track) throughout the session it seems trivial. My question would
>> be if there are many apps being more advanced around that motivate this
>> addition when we're moving to a more track-based approach.
>>
>
> We have several applications that run 2 or 3 video tracks over one
> connection. We particularly use it to get a face camera, a document
> camera and a room overview camera together in one stream.

But, as long as they are all in the same stream it is also trivial to 
emulate "onaddstream", right?

>
> Here's me hoping we're not the only ones with such needs!

I have no strong opinion on this one. If people see need for onaddstream 
we should perhaps just add it.

Perhaps someone could make a Pull Request so we get an idea of how it 
could be specced?

>
> Cheers,
> Silvia.
>
Received on Tuesday, 23 June 2015 10:18:42 UTC

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