Read the statement by Michael Teeuw here.
MMM.RTSPStream
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 Ive used config tool 
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 I tried everything. Its not working 
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 I think at this point, we need to perform some voodoo and call up the author… @shbatm Wanna help us out? 
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 FWIW, VLC don’t work for me. I have to use OMX Player or FFMPeg… running on a Pi 4 
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 I did some checking, and testing and found out a couple of things: - I was on the develop branch, not the master branch.
- I’m now on the master branch, which neither VLC or OMXPlayer works, but FFMPeg does.
 So, maybe the solution is to switch to FFMpeg for you, too. 
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 Thanks, i think that’s the solution. Im on master branch. Will check and let you know. Many thanks for help. 
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 Hi sorry for late reply. I was away for couple of days. Ok i tried both brunch but no luck. Tried ffmpeg as well. But not working. 
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 How to check rtsp with ffmpeg without going to the magicmirror? Because i can see vlc on my manu but i couldn’t find ffmpeg. 
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 Just a FYI, I still can’t get VLC to work, but I did get OMXPlayer to work. turns out my URL was wrong (wrong address, “frontcam” not “FrontCam” - check your strings. 
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 I couldn’t get any of the player working. Thinking to remove the module and reinstall. It might help 

