Publish to RTMP - But can't play stream

[Chai]

Hi,

We are trying to do RTMP publish via OBS. I tried OBS and Streamlabs OBS and we are having an issue playing the stream. Please see this screenshot below. 

As you can see I'm able to publish with OBS software and I can see the stream in Ant Dashboard. But, when I go to WebRTCAppEE/player.html and try to play the stream - it says "no_stream_exist".

Here is the Stream configuration from OBS and Streamlabs. 

One thing to notice, I'm using rtmp:// for OBS and https:// for Streamlabs(which is working as I expected). But most of our customers are familiar with OBS and would like to use that instead. 

Any insights or workarounds on how to RTMP publish from OBS and play the stream from player.html?

Thanks,

Chai

 

 

 

 

[Yash]

Hi Chai,

Hope you are fine.

Please follow below documentation link for RTMP publishing through OBS and other encoder.

https://github.com/ant-media/Ant-Media-Server/wiki/RTMP-Publishing

And for playing the live streams you can follow below link

https://github.com/ant-media/Ant-Media-Server/wiki/Playing-Live-Streams

You will be able to play your stream on https://your_domain:5443/(LiveApp/WebRTCAppEE)/play.html?name=streamId

Regards,

Yash

[Yash]

Hi Chai,

As I can see in Stream labs, you are using https in RTMP Url which will not work. Also you have to add "/" after the WebRTCAppEE which you have not added.

So your URL should be like rtmp://your_domain/WebRTCAppEE/

Regards,

Yash

[Chai]

Yash,

Surprisingly - Streamlabs works with https. But I still can’t play the stream from player.html - it says “no_stream_exists”, but Ant dashboard displays the video that is being streamed. 

--

Chaitanya Malla

[Yash]

Hi Chaitanya,

Please refer the documentation in my first mail to play your live stream.

Also this is to inform you that you will only be able to play the stream in /WebRTCAppEE/player.html when you publish the WebRTC stream through https://yourdomain:5443/WebRTCAppEE/ 

Please let me know if you have any doubt.

 

Regards,

Yash

[Chai]

Yash,

Great. Thanks for clarifying and I'm able to get it to work. I was using player.html instead of play.html and the playOrder param. 

Now that I got to work - but, there is a significant delay of 15 seconds. We use GPU 4xlarge servers with Adaptive streaming enabled and followed the recommended configurations mentioned here: https://github.com/ant-media/Ant-Media-Server/wiki/Open-Broadcaster-Software-Publishing

Any other ideas on how I can reduce the latency when streaming from OBS?

 

[Yash]

Hi Chaitanya,

To reduce the HLS latency there are some parameters and it can be reduced to 8-10 secs or less for now. Also it depends on your internet connection. Please refer below link for rtmp to hls latency

https://github.com/ant-media/Ant-Media-Server/wiki/How-to-Reduce-latency-for-RTMP-HLS-Streaming

 

In short to have about 8-10 secs latency.

• Send key frame interval with 2 seconds in OBS
• Make HLS segment time 2 seconds in the Ant Media Server settings

Regards,

Yash

 

 

[Chai]

Yash,

Great. thanks for the reference. We made those changes and the latency is reduced significantly. 

Now, onto the next issue - Is there a known issue with Audio/Video lag. I know it happened with some of the versions recently like 2.2 but they are claimed to be resolved. Are they any such known issues with 2.3.2?

 

[Chai]

The thread that mentioned the issue was resolved - https://github.com/ant-media/Ant-Media-Server/issues/3088 , but we do see the issue persists with latest version. 

 

 

[Chai]

Yash,

I just had a call with Burak about some of these issues and got suggestions on how we can improve the latency and other details. Please take a look at the email I sent with additional logs to help with debugging. 

Thanks,

Chai