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Add spec requiring tracks to be within streams.

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David Baker 2023-05-02 16:59:31 +01:00
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content/client-server-api/modules/voip_events.md
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@ -54,6 +54,19 @@ Or a rejected call:
Calls are negotiated according to the WebRTC specification. Calls are negotiated according to the WebRTC specification.
Clients are expected to send one stream with one track of kind `audio` (creating a
voice call). They can optionally send a second track in the same stream of kind
`video` (creating a video call).
Clients implementing this specification use the first stream and will ignore
any streamless tracks. Note that in the Javascript WebRTC API, this means
`addTrack()` must be passed two parameters: a track and a stream, not just a
track, and in a video call the stream must be the same for both audio and video
track.
A client may send other streams and tracks but the behaviour of the other party
with respect to presenting such streams and tracks is undefined.
##### Glare ##### Glare
"Glare" is a problem which occurs when two users call each other at "Glare" is a problem which occurs when two users call each other at