Possible combatibility issue with RTMP and with Streamlabs Mobile app Android version

[notwildsystem]

Which version are you using?

v0.20.2 (have tried 0.19.x too)

Which operating system are you using?

• [X ] Linux amd64 standard

Describe the issue

Streamlabs mobile Android version app ( https://play.google.com/store/apps/details?id=com.streamlabs )doesn't work with RTMP. Basically based on logs it tries to connect twice and does i/o timeout. Current Android version of it is 3.6.12.171. This issue has been at least since summer.

What works: Streamlabs Mobile and their iOS version of it. Also Camerafi Live on Android and Larix Android works.

I am using default settings out-of-the-box from RTSP-simple server or my custom. It doesn't matter, it acts like the same way. I am using the same network LAN and there is no firewall or network issue and their iOS version works and other similar Android apps works fine too.

Describe how to replicate the issue

1. start the server
2. Try to Stream with Streamlabs Mobile Android app with RTMP

Did you attach the server logs?

yes

Did you attach a network dump?

no

[aler9]

Hello, thanks for reporting this issue, it turned out that the RTMP handshake procedure was not correct and streamlabs is sensitive about that. This is fixed with #1398.

[aler9]

added in v0.21.2

[github-actions]

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