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[GH-ISSUE #144] SRT Video Doesn't Work #74

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opened 2026-03-02 03:59:59 +03:00 by kerem · 7 comments

kerem commented

2026-03-02 03:59:59 +03:00

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Originally created by @unutmayan123 on GitHub (Aug 5, 2025).
Original GitHub issue: https://github.com/eerimoq/moblin/issues/144

Hi, I'm having trouble getting SRT video to display from Moblin.

My setup:

Streaming from phone via Moblin using SRT, codec: H.264
OBS (on PC) media source input: srt://0.0.0.0:8888?mode=listener
Format: mpegts
OBS version: 31.1.1
Windows firewall fully configured (UDP/TCP allowed on 8888 and 4455

for both obs.exe and ffplay)

My ObsWebSocket port is "4455"
Public IP is correctly port-forwarded (8888 and 4455) on router
ffplay command used: ffplay.exe srt://0.0.0.0:8888?mode=listener (opens and listens without error)

What happens:

No video is displayed, not on OBS, not on ffplay.
OBS log shows repeated: MP: Failed to open media, I/O error, or Immediate exit requested
ffplay window opens successfully but receives no packets.

Additional Notes:

Tried with multiple phones and Moblin instances – connection appears to initiate, but video never shows.
Tried both mpegts and mov formats – same issue.
Verified that Moblin is sending (SRT stats show outgoing traffic on phone).
Listener mode is used on both OBS and ffplay.

Conclusion:

Despite all ports and settings being correct, the video feed simply doesn’t appear. Would appreciate any help or clarification on what might be missing.

Originally created by @unutmayan123 on GitHub (Aug 5, 2025). Original GitHub issue: https://github.com/eerimoq/moblin/issues/144 Hi, I'm having trouble getting SRT video to display from Moblin. My setup: - Streaming from phone via Moblin using SRT, codec: H.264 - OBS (on PC) media source input: srt://0.0.0.0:8888?mode=listener - Format: mpegts - OBS version: 31.1.1 - Windows firewall fully configured (UDP/TCP allowed on 8888 and 4455 ![Image](https://github.com/user-attachments/assets/c3678668-7d74-43a4-8659-e5a06b930d8d) for both obs.exe and ffplay) - My ObsWebSocket port is "4455" - Public IP is correctly port-forwarded (8888 and 4455) on router - ffplay command used: ffplay.exe srt://0.0.0.0:8888?mode=listener (opens and listens without error) What happens: - No video is displayed, not on OBS, not on ffplay. - OBS log shows repeated: `MP: Failed to open media`, `I/O error`, or `Immediate exit requested` - ffplay window opens successfully but receives no packets. Additional Notes: - Tried with multiple phones and Moblin instances – connection appears to initiate, but video never shows. - Tried both mpegts and mov formats – same issue. - Verified that Moblin is sending (SRT stats show outgoing traffic on phone). - Listener mode is used on both OBS and ffplay. Conclusion: Despite all ports and settings being correct, the video feed simply doesn’t appear. Would appreciate any help or clarification on what might be missing.

kerem closed this issue

2026-03-02 03:59:59 +03:00

kerem commented

2026-03-02 04:00:00 +03:00

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@eerimoq commented on GitHub (Aug 5, 2025):

Is audio enabled in Moblin? If not, enable it.

@eerimoq commented on GitHub (Aug 5, 2025): Is audio enabled in Moblin? If not, enable it.

kerem commented

2026-03-02 04:00:00 +03:00

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Owner

@unutmayan123 commented on GitHub (Aug 5, 2025):

Is audio enabled in Moblin? If not, enable it.

Yes it is, audio is enabled

@unutmayan123 commented on GitHub (Aug 5, 2025): > Is audio enabled in Moblin? If not, enable it. Yes it is, audio is enabled

kerem commented

2026-03-02 04:00:00 +03:00

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@eerimoq commented on GitHub (Aug 5, 2025):

then I suggest test on local network for less risk of internet related problems.

@eerimoq commented on GitHub (Aug 5, 2025): then I suggest test on local network for less risk of internet related problems.

kerem commented

2026-03-02 04:00:00 +03:00

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Owner

@unutmayan123 commented on GitHub (Aug 5, 2025):

then I suggest test on local network for less risk of internet related problems.

Nope. it still doesnt with my wifi internet connection

If I need to explain in more detail
I mean i can see the video on my phone but when i open "obs" button on app for remote control, i can see my text and other stuff on scene except my phone camera. So my connection its okay but some how my obs can't take my SRT data.

and another info
i made a live stream with all same setup, ports and ip adresses a few weeks ago but it suddenly blow up

@unutmayan123 commented on GitHub (Aug 5, 2025): > then I suggest test on local network for less risk of internet related problems. Nope. it still doesnt with my wifi internet connection If I need to explain in more detail I mean i can see the video on my phone but when i open "obs" button on app for remote control, i can see my text and other stuff on scene except my phone camera. So my connection its okay but some how my obs can't take my SRT data. and another info i made a live stream with all same setup, ports and ip adresses a few weeks ago but it suddenly blow up

kerem commented

2026-03-02 04:00:00 +03:00

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Owner

@eerimoq commented on GitHub (Aug 5, 2025):

Join discord and ask in the tech-support channel.

@eerimoq commented on GitHub (Aug 5, 2025): Join discord and ask in the tech-support channel.

kerem commented

2026-03-02 04:00:01 +03:00

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Owner

@eerimoq commented on GitHub (Aug 5, 2025):

rebooting the phone can also help

@eerimoq commented on GitHub (Aug 5, 2025): rebooting the phone can also help

kerem commented

2026-03-02 04:00:01 +03:00

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@unutmayan123 commented on GitHub (Aug 5, 2025):

rebooting the phone can also help

I tried with big hopes but it didnt work too, i will ask tech-support channel on discord.

@unutmayan123 commented on GitHub (Aug 5, 2025): > rebooting the phone can also help I tried with big hopes but it didnt work too, i will ask tech-support channel on discord.

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