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Matou  
#1 Posted : Sunday, June 30, 2024 6:09:54 AM(UTC)
Matou

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Good evening everyone!
Can anyone explain to me, in a simple way, whether to do a live broadcast in SRT I am forced to rely on an SRT server service?
Has anyone managed to configure an SRT address with just their PC in Vmix?
Thank you all!!!


Buonasera a tutti!
Qualcuno mi sa spiegare, in maniera semplice, se per fare una diretta in SRT sono obbligato ad appoggiarmi ad un servizio di server SRT?
Qualcuno è riuscito a configurare un indirizzo SRT solo con il proprio pc in Vmix?
Grazie a tutti!!!
nikosman88  
#2 Posted : Sunday, June 30, 2024 6:57:43 AM(UTC)
nikosman88

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Hello. Yes in theory you dont need a SRT server service or if you do vmix pc1 SRT caller/listener to vmix pc2 caller/listener. In order to be able your pc to see the other pc,you need to open (forward) a port in your internet router. There are videos that explains this process that may be a little different because of your router menu etc.
In practice now for live broadcast. Let`s say you open the port into your router. The viewers must have the program (vmix,obs and it`s clones or other program that can decode the SRT stream) that will do decode your SRT stream in their side. They need to know your ip and the port you assigned for SRT in order to be able to connect and see the stream. Also very important. Vmix SRT outputs are multipoint so that means that in your ip:port can connect many people. The problem here is your upload bandwidth. If you give for example 5mbps SRT stream and 10 people connect same time, you need to have 50mbps upload in order everyone to be able to see your stream.
thanks 2 users thanked nikosman88 for this useful post.
Chircanu on 6/30/2024(UTC), Matou on 7/2/2024(UTC)
paco3346  
#3 Posted : Monday, July 1, 2024 4:08:53 PM(UTC)
paco3346

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From personal experience I've also found that vmix struggles with multipoint listeners. It won't drop frames in the rendering engine but the SRT output will drop TONs of packets. I'm talking upwards of 40%. This has been true regardless of resolution, bitrate, and CPU power.

I've resorted to using this whenever I need vmix to feed multiple endpoints:
https://github.com/cannonbeach/opensrthub
thanks 1 user thanked paco3346 for this useful post.
Matou on 7/2/2024(UTC)
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