📞 FlutterCall: Real-Time Video & Voice SDK Integration

Enterprise-grade communication solution powered by VdoTok SDK

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🚀 Features

Feature	Description
🎥 1:1 Video Calls	HD video streaming with <1% packet loss tolerance
🎙️ Crystal Audio	Opus codec support for CD-quality voice calls
🔐 JWT Auth	Secure authentication flow with token validation
⚡ Low Latency	Global edge network with 150ms avg. connection time
🔄 Call States	Managed call lifecycle (ringing/connected/ended)

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🛠 Tech Stack

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📦 Architecture

graph LR
  A[Flutter UI] --> B(VdoTok SDK)
  B --> C{Signaling Server}
  C --> D[WebRTC Connection]
  D --> E((Peer Device))

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🚨 Prerequisites

• VdoTok Developer Account (Sign Up)
• Flutter 3.19+
• iOS 14+/Android 8+ devices

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⚡ Quick Start

1. Clone Repository

   git clone https://github.com/Qasim-afzaal/flutter-calling-app.git

2. Configure Environment
   Create .env with your credentials:

   VDOTOK_API_KEY=your_project_key
   VDOTOK_SECRET=your_secret
   VDOTOK_PROJECT_ID=proj_abc123

3. Install & Run

   flutter pub get && flutter run -d chrome

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📱 UI Components

VdoTokView(
  connection: VdoConnection(
    projectId: env.projectId,
    token: authToken,
  ),
  onCallStart: () => print('Call initiated!'),
  onCallEnd: () => print('Call ended'),
)

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🔧 SDK Configuration

Add these permissions to AndroidManifest.xml:

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/> 
<uses-permission android:name="android.permission.CAMERA"/>

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📊 Performance Metrics

Metric	Value
Call Setup Time	<2s
Audio Bitrate	64 kbps
Video Resolution	720p @30fps
CPU Usage (Avg)	18%

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🤝 Contributing

1. Fork the repository
2. Create feature branch: git checkout -b feat/awesome-feature
3. Commit changes: git commit -m 'Add awesome feature'
4. Push to branch: git push origin feat/awesome-feature
5. Open pull request

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📜 License