Replacing a mixer source

[MM2 Mutlimedia]

Hi Max,

Do you know if it's possible to use the mixer feature and replace an incoming source with another available incoming source? The API currently supports 2 API calls for adding and removing a stream source in the mixer. But I would like to replace an existing WebRTC stream using a single API call - without a black-out cut transition in between. Would that be possible somehow?

This way I could switch sources fullscreen smoothly.

Thanks in advance,
Stefan

 

[Max]

Good day.
We raised internal ticket WCS-2651 to investigate the possibility, but now there are more priority tasks.
Please clarify: do you wish to replace the main stream ("desktop") in desktop layout

or some participant stream in grid layout

?

 

[MM2 Mutlimedia]

Hi Max,

I would like to replace any participant by their remoteStreamName. So it's more applicable to the GridLayout I think.
Sometimes I just have a single participant in the mixer. A replace command would help me to keep control on what/who is visible in the mixer. This way I can switch between participants streamed to Youtube for example. The mixer then becomes more or less a switcher.

The command could look like this:

API url: /rest-api/mixer/replace
Body:
{
"uri": "mixer://mixer",
"replaceStreamName" : "lYoNfefe108bnws9ee2aen",
"newStreamName": "NSCNlYoNBbMenws9AABl"
}

 

[Max]

Good day.
In the latest WCS builds, you can use stream injection to replace one mixer input stream by another:

POST /rest-api/stream/inject/startup HTTP/1.1
HOST: localhost:8081
content-type: application/json

{
"localStreamName" : "lYoNfefe108bnws9ee2aen",
"remoteStreamName": "NSCNlYoNBbMenws9AABl"
}