RTMP streaming to FB is disconnecting

[yasmagic]

I am testing RTMP destination to Facebook on a 40 core and 64GB memory server with no load. After connecting to Facebook live, the streams disconnects automatically with an error:

Jan 8 11:22:43 pnmtest node[28707]: 2025-01-08T16:22:43.839Z error: FFmpeg child process closed, code 1, signal null
Jan 8 11:22:44 pnmtest node[7524]: 2025-01-08T16:22:43.896Z error: Recorder: on WEBSOCKET_ERROR
Jan 8 11:22:44 pnmtest node[7524]: 2025-01-08T16:22:43.897Z warn: Recorder: process ended with error, serviceType:1; roomTableId: 81; msg: WEBSOCKET_ERROR
Jan 8 11:22:44 pnmtest node[7524]: 2025-01-08T16:22:44.348Z error: Recorder:Waiting for selector div[id=errorPage] failed: Protocol error (Runtime.callFunctionOn): Target closed
Jan 8 11:22:44 pnmtest node[7524]: 2025-01-08T16:22:44.403Z info: Recorder: page on close
Jan 8 11:22:44 pnmtest node[7524]: 2025-01-08T16:22:44.463Z info: Recorder: browser on disconnected

Any idea how to resolve this? Thank you.

[yasmagic]

Reinstalled Ubuntu 24 and installed plugNmeet from scratch, and RTMP streaming works now. :) However, the frame moves very slowly in Facebook. I see following warning in FB:

Key frame rate too low
The current key frame rate is too low. Recommended key frame rates are in the range of one every 2-4s. Please update or viewers may experience a lower quality stream.

Too low FPS
The current frame rate is too low. Please set the frame rate to 15 - 60 fps or viewers may experience a lower quality stream.

How to improve FFMPEG performance? Is there any other tuning settings needs to be done in /opt/plugNmeet/recorder/config.yaml file? Also, noticed that it adds an extra slash in the URL for FB like /rtmp// as shown below:

2025-01-11T15:04:03.364Z info: ffmpeg options: -i,-,-c:v,libx264,-x264-params,keyint=120:scenecut=0,-b:v,2500k,-video_size,1280x720,-c:a,aac,-b:a,128k,-ar,44100,-af,highpass=f=200,lowpass=f=2000,afftdn,-preset,ultrafast,-crf,5,-vf,format=yuv420p,-tune,zerolatency,-f,flv,rtmps://live-api-s.facebook.com:443/rtmp//FB-489292XXXXX

[yasmagic]

@jibon57 Any help, please? The new server I used for testing has 48 cores, 128GB of memory, a 10Gbps pipe, and is optimized for high performance. I think something is not right with the FFMPEG or PlugNMeet server settings. Here are my observations:

1. RTMP ingress works well but has low frame rate often. Overall, all the tools function effectively except for the following issues.
2. Streaming to Facebook, YouTube, and RTMP destinations experiences a very low frame rate and frequent disconnections.
3. Recording sessions to MP4 have garbled and missing audio.
4. Recording locally to a WEBM file has no audio.

After installing PlugNMeet using the install script, RTMP streaming or recording continues to throw errors due to missing libraries. I noticed that the following need to be installed:

apt-get install libatk1.0-0 libx264-dev libatk-bridge2.0-0 libcups2 libxcomposite1
libxrandr2 libxdamage1 libxkbcommon0 libgbm1 libpango-1.0-0
libpangocairo-1.0-0 libnss3 libnspr4 libxshmfence1
libglib2.0-0 libgtk-3-0 alsa-utils libopus-dev opus-tools libopus0 libvorbis-dev

I think the dependencies need to be added to the install script. Is there anything else in your test environment that we might be missing, causing these issues? Kindly share your feedback, as I have spent over two weeks on this with no luck. :)

[yasmagic]

I fixed it. :)