How to send RTP stream to Janus from NGINX RTMP module?

I finally solved this problem with the following command :

sudo ffmpeg -y -i "rtmp://127.0.0.1/app/stream" -c:v libx264 -profile:v main -s 1920x1080 -an -preset ultrafast -tune zerolatency -g 50 -f rtp rtp://127.0.0.1:5004

Unfortunately, when I use -c:v copy, it doesn't work. It only works when encoding with libx264 which adds latency and I got between 3 and 4 seconds of latency.

However, when I installed Janus, my goal was to do better than with HLS, protocol with which I reach 2.5 seconds of latency.

So Janus did not meet my need. Moreover I was warned that it was not a stream server. After some research I came across Github on the Oven Media Engine project, a stream server that offers a latency of less than 1s. The documentation is complete on the dedicated site and a player (Oven Media Player) adapted to this server is available under MIT license. The server is under GPLv2 license.

Here is the current schema of my architecture :

OBS -> Nginx (which allows to allow streaming with on_publish, because OME doesn't allow it yet. The stream is then pushed to the OME server) -> OME -> Transcoding in different bitrate and resolution (optional) -> OME -> Edge OME (optional) -> player.

If you have any questions, don't hesitate, the support is very friendly !

Hope it helps

I don't have reputation. So I write answer.Thank you for your answerOven Media Engine is perfect solution to me.

OBS ->RTMP-> OME ->webrtc-> chrome player.is possible

I have question.I try

ffmpeg -i rtmp://0.0.0.0:1935/live/test03 -an -c:v libvpx -flags global_header -bsf dump_extra -f rtp rtp://0.0.0.0:5005

it work latency 500ms but i see little lag

ffmpeg -i rtmp://0.0.0.0:1935/live/test03 -an -c:v libx264 -profile:v baseline -preset ultrafast -tune zerolatency -flags global_header -bsf dump_extra -f rtp rtp://0.0.0.0:5006

it work latency 2s i see often lag.

I know h246 is better than vp8.But in my case I am wondering if the vp8 worked better.

we need recording so use nginxHow to push nginx ->RTMP-> OMEpush 0.0.0.0:1935/$app/$name; not workpush 0.0.0.0:1935/app/stream; workwhat???

Do you solve problem?I try console"ffmpeg -i rtmp://0.0.0.0:1935/live/test03 -an -c:v copy -flags global_header -bsf dump_extra -f rtp rtp://127.0.0.1:5004""sudo ffmpeg -i "rtmp://0.0.0.0:1935/live/test03" -map 0:2 -c:v libx264 -profile:v main -preset ultrafast -tune zerolatency -f rtp rtp://127.0.0.1:5005"

I have same issue like you