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Separate installation of ffmpeg breaks srt connection from OBS to Nimble server

Jonathan 2021-03-22 06:54:25 UTC in Nimble Streamer

When I install ffmpeg on an Ubuntu 18.04 server where the Nimble server is already installed, a previously working OBS-Nimble connection fails. The Nimble log shows:

E: srt_bind for 0.0.0.0:2020 failed, s=499347426: Connection setup failure: unable to create/configure SRT socket: Address already in use
E: failed to bind srt socket 0.0.0.0:2020

Tried changing port to 4020, but get the same error. (As far as I can see ffmpeg does not use these ports as standard.)

After uninstalling ffmpeg the issue is resolved.

Is there a way for Nimble and ffmpeg to co-exist on the server?

Max 2021-03-22 07:19:08 UTC 

Hello Jonathan,

Nimble does not use "system" or "default" FFmpeg libraries so installing/uninstalling those should not affect Nimble, but if it failed to bind 2020 after that may be there was some other process using port 2020?

Alex Pokotilo 2021-03-22 07:23:53 UTC 

ffmpeg from the standard repository doesn't have srt enabled at all. Nimble use srt with custom library names.
I don't exclude possibility of such a collision completely, but it's almost impossible. Please file a ticket via https://wmspanel.com/help if you want to narrow this problem down as sensitive account/server-related information may be required

Jonathan 2021-03-22 08:20:56 UTC 

Thank you both. I will file a ticket.

Just to restate: the problem seems to be directly related to whether or not ffmpeg is installed. Without it everything is okay, but with it installed the connection problem arises.

Jonathan 2021-03-22 08:21:54 UTC 

Thank you both. I will file a ticket.

Just to restate: the problem seems to be directly related to whether or not ffmpeg is installed. Without it everything is okay, but with it installed the connection problem arises.

Jonathan 2021-03-23 09:18:33 UTC 

Just in case anyone else ends up here, turned out to be an underpowered server. Issue resolved :)

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