Capture Library

Introduction

Capture video and audio from cameras, microphones, and screens — then stream or record with a single unified API. Whether you're building a broadcasting app, surveillance system, or video conferencing solution, VASTreaming handles the complexity so you can focus on your product.

Native Performance

Built on platform-native capture frameworks for maximum performance and device compatibility:

• Windows: Media Foundation, DirectShow, WASAPI, ASIO
• macOS / iOS: AVFoundation
• Android: Camera API, AudioRecord

Real-Time Mixing

Combine multiple sources into professional broadcasts — all in real-time:

Video mixing:

• Multiple cameras with picture-in-picture layouts
• Screen capture for presentations and demos
• Video files and animated overlays (GIF with transparency)
• Text overlays and watermarks

Audio mixing:

• Multiple microphones with individual level control
• Background music from files

Add or remove sources on the fly — no interruption to your stream. See video and audio processing for full capabilities.

Stream Anywhere, Record Everything

Stream live to YouTube, Twitch, Facebook, or your own servers — while simultaneously recording to MP4. Multi-destination streaming lets you broadcast to multiple platforms at once.

Platforms

Available for all major platforms:

• C# / .NET: .NET 6/7/8/9/10+ (cross-platform), .NET Framework 4.5+, MAUI (Windows, macOS, Android, iOS)
• Java / C++: Android Studio
• C++: Visual Studio (Windows)
• C++ / Objective-C / Swift: Xcode (macOS, iOS)

Ready to get started? Explore our demo projects on GitHub with a free 30-day demo license, or contact us for additional information.