Trying to build a webrtc on local network using webrtcbin

Rz-Rz · November 11, 2024, 1:45pm

Hey,

So I managed to make it work reliably using the following library : GitHub - paullouisageneau/libdatachannel: C/C++ WebRTC network library featuring Data Channels, Media Transport, and WebSockets

I got inspired by these examples : libdatachannel/examples/media-sender at master · paullouisageneau/libdatachannel · GitHub
libdatachannel/examples/media-sfu at master · paullouisageneau/libdatachannel · GitHub

I re used these pieces of code, that receives a RTP stream and sends it via webrtc to a browser. I transformed it, using appsink (appsink), to directly receive RTP buffers in memory, then transferring them to libdatachannel and then to a web browser.

To automate the SDP offers/exchanges with another source, I tweaked the following signaling server :

github.com

centricular/gstwebrtc-demos/blob/master/signalling/simple_server.py

#!/usr/bin/env python3
#
# Example 1-1 call signalling server
#
# Copyright (C) 2017 Centricular Ltd.
#
#  Author: Nirbheek Chauhan <nirbheek@centricular.com>
#

import os
import sys
import ssl
import logging
import asyncio
import websockets
import argparse
import http
import concurrent

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I adapt it with custom signaling messages, that would trigger the SDP/ICE exchange based on ws signals.