The Challenge of Video in Africa
Deploying a video teleconsultation solution in Africa presents unique challenges: unstable 3G connection, high latency, and expensive data.
For Keneya, we had to optimize every aspect of our WebRTC stack.
Optimized WebRTC Architecture
1. Optimized TURN/STUN Server
typescript
const configuration: RTCConfiguration = {
iceServers: [
{ urls: 'stun:stun.wapiki.com:3478' },
{
urls: 'turn:turn.wapiki.com:3478',
username: 'keneya',
credential: 'secure_token'
}
],
bundlePolicy: 'max-bundle',
rtcpMuxPolicy: 'require',
iceCandidatePoolSize: 10
}2. Dynamic Quality Adaptation
Our algorithm detects network quality and automatically adjusts:
typescript
async function adaptVideoQuality(stats: RTCStatsReport) {
const bandwidth = calculateBandwidth(stats)
if (bandwidth < 500) {
// Switch to audio only
await disableVideo()
} else if (bandwidth < 1000) {
// 360p, 15fps
await setVideoConstraints({ width: 640, height: 360, frameRate: 15 })
} else if (bandwidth < 2000) {
// 480p, 24fps
await setVideoConstraints({ width: 854, height: 480, frameRate: 24 })
} else {
// 720p, 30fps
await setVideoConstraints({ width: 1280, height: 720, frameRate: 30 })
}
}3. Mobile Optimization (React Native)
On React Native, we use react-native-webrtc with specific optimizations:
Reconnection Management
Network cuts are frequent. Our system automatically reconnects:
typescript
peerConnection.oniceconnectionstatechange = async () => {
if (peerConnection.iceConnectionState === 'disconnected') {
// ICE restart attempt
await restartIce()
} else if (peerConnection.iceConnectionState === 'failed') {
// Recreate the entire connection
await recreatePeerConnection()
}
}Production Results
Conclusion
WebRTC in Africa is possible, but requires aggressive optimization and deep understanding of network constraints.
*Developing a real-time video solution? [Let's talk](/contact).*