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WebRTC live video broadcast with Ant Media Server

Developers can make their app users broadcast live video not only from their browser with WebRTC, but also from OBS, thanks to WebRTC AdapterLet’s start with introducing OBS which stands for Open Broadcaster Software. 

OBS is a free open source software for video recording and live streaming. You can use either your PC’s embedded camera or externally connected one as a video source with OBS. Sound sources also can be configured with it. Ant Media Server Enterprise is fully compatible with OBS.

Let’s have a look at step by step how to use OBS for streaming:

Step 1: Getting the OBS:

Download via its official web page. It has Windows, Mac, and Linux releases.

Step 2 : Provide Sources:

RTMP stream from OBS for WebRTC replay

By default, OBS starts to capture from your embedded camera if exists after initialized. You can add or remove video/audio source from Sources section, such as an image can be broadcasted as a video source or external microphone can be added as an audio source.

Step 3: Configure the Ant Media Server

Contact with us from our web page in order to get Ant Media Server Enterprise. Extract the Ant Media Server Enterprise zip file and start the server with command in the terminal. For detailed information please follow steps described in the Getting started Document.

cd /path/to/ant-media-server


After that, you need to create a live stream on Ant Media Server Enterprise Management console. You can reach it at http://<ip-address>:5080 address, then click “WebRTCAppEE” from Applications section and “New Live Stream”. The server creates a live stream with a unique ID with the format of “rtmp://<ip-address>/WebRTCAppEE/325859929809451108600212”. You can copy this url with clicking Clipboard icon.

Ant Media Server Dashboard

Step 4: Configure the OBS

You need to write live stream parameters to OBS in order to start broadcasting. Click “Settings” then select “Stream” tab. Split the rtmp://<domain or IP of Server>/ WebRTCAppEE/325859929809451108600212 url and and write url and stream key parameters as described in the below picture. Make sure that Stream ID should be written to Stream Key field not to the url.

OBS (Open Broadcaster Software) Stream Configuration


Step 5 : Start Streaming and Watch 🙂

Close settings window and just click the “Start Streaming” button in the main window of OBS. You can watch WebRTC stream from either Ant Media Management console or other platforms such as VLC player with the same RTMP url.

You can play with Low latency by opening from http://localhost:5080/WebRTCAppEE/player.html. You need to enter the stream key parameter as in the OBS settings. Then click Start Playing and stream will be displayed.


In order to play with HLS as traditional 8-10 seconds latency go to Ant Media Management console, click Play button. A dialog will be displayed where you can watch the live stream.
Play from Console


In order to tune latency in RTMP streaming, please follow the instructions here.

We hope this tutorial will be helpful for you. Please feel free in case you have any question, just send an email ( or contact with us from contact page.

Categories: Tutorial