VisioForge

Last updated: February 2026

Video Capture SDK .NET vs Ozeki Camera SDK

C# Camera & IP Camera SDK Comparison

Choosing the right video capture SDK for C# and .NET development is critical for building reliable camera, screen recording, and IP camera applications. Both VisioForge Video Capture SDK .NET and Ozeki Camera SDK are .NET-based development kits designed for C# video capture, but they differ significantly in scope, platform support, and architecture. VisioForge Video Capture SDK .NET is a comprehensive, cross-platform camera SDK supporting USB webcam capture, ONVIF and RTSP IP cameras, screen capture, professional hardware (Blackmagic Decklink, NDI, GenICam/GigE Vision), and a wide range of output formats. Ozeki Camera SDK focuses primarily on IP camera connectivity via ONVIF and RTSP protocols, with built-in video analytics capabilities like license plate recognition and object detection.

Executive Summary

AspectVideo Capture SDK .NETOzeki Camera SDK
Primary FocusUniversal video capture & processingIP camera / ONVIF applications
Cross-PlatformWindows, macOS, Linux, iOS, AndroidWindows (Linux/macOS partial)
Modern .NET.NET 5 / 6 / 7 / 8 / 9 / 10.NET 8 (recently upgraded from .NET Framework 4.8)
UI FrameworksWinForms, WPF, MAUI, Avalonia, Uno, WinUI, BlazorWinForms
Output Formats10+ containers (MP4, AVI, MKV, MOV, WebM, etc.)MPEG-4, AVI
Video CodecsH.264, HEVC, AV1, VP8/VP9, MJPEG, and moreH.264, MP4V-ES
Hardware AccelerationNVIDIA NVENC, Intel Quick Sync, AMD VCE, Apple VideoToolboxNone
Licensing ModelPer-developer, free for non-commercial usePer-camera count
Best ForCross-platform capture, streaming, professional hardwareDedicated IP camera surveillance with analytics

Architecture Deep Dive

Video Capture SDK .NET Architecture

The Video Capture SDK uses a dual-engine design. The primary engine wraps DirectShow and Media Foundation on Windows, giving native access to every capture device exposed by the OS. A secondary embedded FFmpeg pipeline handles advanced codec operations, IP camera ingestion, and cross-platform recording. Both engines share a unified .NET API surface.

  • Native Windows capture via DirectShow and Media Foundation filter graphs
  • Embedded FFmpeg for codec flexibility without external CLI dependencies
  • GPU-accelerated preview via Direct3D / OpenGL renderers
  • Event-driven architecture with .NET async/await support
  • Cross-platform pipeline supporting Windows, macOS, Linux, Android, and iOS

Ozeki Camera SDK Architecture

Ozeki Camera SDK uses a camera-centric connection model where developers establish connections to IP cameras and attach handlers for specific operations (recording, PTZ control, motion detection, analytics). The SDK provides high-level classes for common ONVIF operations rather than composable processing blocks.

  • Camera-centric connection model focused on ONVIF and RTSP
  • Built-in video analytics pipeline (LPR, object detection, tripwire)
  • Integrated alerting system (email, SMS, VoIP, FTP)
  • Recently upgraded from .NET Framework 4.8 to .NET 8
  • Integrated notification system for surveillance alerts

Key Architectural Differences

AspectVideo Capture SDKOzeki Camera SDK
Engine TypeDual engine (DirectShow/MF + FFmpeg)Proprietary camera connection engine
Device ScopeWebcams, IP cameras, screens, capture cards, industrial camerasIP cameras (ONVIF/RTSP) and USB webcams
Codec SupportEmbedded FFmpeg + OS codecs + hardware encodersH.264, MP4V-ES via proprietary stack
API DesignModern .NET async/await API with eventsCamera connection model with handlers
AnalyticsMotion detection, face detection, barcode readingLPR, object detection, tripwire, loitering, OCR
Platform Reach5 platforms (Windows, macOS, Linux, iOS, Android)Windows primary, partial Linux/macOS/Android

Feature-by-Feature Comparison

Video Input Sources

FeatureVideo Capture SDKOzeki Camera SDK
USB Webcams
ONVIF IP Cameras
RTSP Cameras
HTTP MJPEG Cameras
Screen / Desktop Capture
DV / HDV Camcorders
TV Tuners
Blackmagic Decklink
NDI Sources
RTMP Sources
SRT Sources
HLS Sources
GenICam / GigE Vision / USB3 Vision
Microsoft Kinect
ASIO Audio Devices
DVB-T / DVB-C / DVB-S / ATSC
VNC Remote Desktop Capture

Output Formats & Codecs

FeatureVideo Capture SDKOzeki Camera SDK
MP4 (H.264 + AAC)
AVI
MKV
MOV
WebM (VP8/VP9)
WMV / ASF
MPEG-TS
MXF
GIF
FLV
HEVC / H.265 Encoding
AV1 Encoding
VP8 / VP9 Encoding
MJPEG Encoding
JPG Snapshot
WAV Audio Recording
MP3 Encoding
AAC Encoding
FLAC Encoding
Ogg Vorbis Encoding
Pre-Event Recording (Circular Buffer)⚠️(Basic circular buffer for IP cameras only)

Network Streaming

FeatureVideo Capture SDKOzeki Camera SDK
RTSP Server
RTMP Streaming
HLS Streaming
SRT Streaming
NDI Streaming
UDP Streaming
YouTube / Facebook Live
AWS S3 Upload
HTTP MJPEG Server
ONVIF Server (Camera Emulation)
Website Video Embedding

Hardware Acceleration

FeatureVideo Capture SDKOzeki Camera SDK
NVIDIA NVENC Encoding
NVIDIA CUDA Processing
Intel Quick Sync Encoding
AMD VCE / AMF Encoding
Apple VideoToolbox
Hardware-Accelerated Decoding

Camera Control & Management

FeatureVideo Capture SDKOzeki Camera SDK
PTZ Control (Pan/Tilt/Zoom)
PTZ Preset Positions
PTZ Speed Adjustment
ONVIF Device Discovery
Remote Camera Configuration
Camera Time Synchronization
Camera Settings Backup/Restore
Camera Reboot
Camera User Management
Camera Network Settings
Multi-Camera Simultaneous Recording

Video Processing & Effects

FeatureVideo Capture SDKOzeki Camera SDK
Real-Time Video Resize / Crop
Brightness / Contrast / Saturation
Deinterlacing
Chroma Key
Text Overlay
Image Overlay
Video Mixing / Compositing
Color Correction / Gamma
Mirror / Flip
White Balance
Video Encryption (AES-128/256)
Sepia / Greyscale Effects
Pixelation / Jitter Effects
Water Wave Effects
Edge Detection

Computer Vision & Analytics

FeatureVideo Capture SDKOzeki Camera SDK
Motion Detection
Face Detection
Barcode / QR Code Reading
License Plate Recognition

Platform Support

Operating System Compatibility

PlatformVideo Capture SDKOzeki Camera SDK
Windows (x86 / x64)
macOS⚠️(Partial)
Linux⚠️(Partial)
iOS
Android⚠️(Partial)
Raspberry Pi

UI Framework Compatibility

FrameworkVideo Capture SDKOzeki Camera SDK
WinForms
WPF
.NET MAUI
Avalonia UI
Uno Platform
WinUI 3
Blazor
Console Apps
Windows Service

Pricing Comparison

Video Capture SDK .NET Pricing

Standard (Annual)€250/year

1 developer, IP cameras, streaming, basic formats

Professional (Annual)€350/year

1 developer, + Decklink, DVB, Kinect, MPEG encoding

Premium (Annual)€500/year

1 developer, all features, GPU acceleration, effects

Lifetime License€750 – €1,500

One-time payment, unlimited updates forever

All licenses include:

  • Free for non-commercial use
  • Royalty-free distribution
  • All source-code examples
  • Priority ticket support
  • All platform targets included
  • Cross-platform support (Windows, macOS, Linux, mobile)
  • Unlimited cameras per license

Ozeki Camera SDK Pricing

1 Camera€697

Single camera license

2 Cameras€997

Two camera license

Unlimited Cameras€9,297

Enterprise unlimited camera license

Source Code€49,000

Full source code access

Per-camera licensing model. No free non-commercial license available. 20-day trial period. 3 months standard support included. 1 year of updates included.

Decision Matrix

RequirementVideo Capture SDKOzeki Camera SDKWinner
Cross-platform supportVideo Capture SDK
Output formats & codecsVideo Capture SDK
Hardware-accelerated encodingVideo Capture SDK
IP camera / ONVIF managementTie
Video analytics (LPR, object detection)Ozeki Camera SDK
Screen capture & desktop recordingVideo Capture SDK
Professional hardware (NDI, Decklink, GenICam)Video Capture SDK
Network streaming (RTMP, HLS, SRT)Video Capture SDK
Modern .NET & UI framework supportVideo Capture SDK
Surveillance-specific featuresOzeki Camera SDK
Webcam capture simplicityVideo Capture SDK

Conclusion

Video Capture SDK .NET

VisioForge Video Capture SDK .NET is a comprehensive, cross-platform video capture SDK for .NET and C# designed for developers who need flexibility across input sources, output formats, and deployment targets. It excels in breadth of functionality — from USB webcam capture and screen recording to RTSP/ONVIF IP cameras, Blackmagic Decklink, NDI, and GenICam/GigE Vision industrial cameras — with modern .NET framework support and hardware acceleration.

Ozeki Camera SDK

Ozeki Camera SDK is a specialized IP camera SDK focused on ONVIF applications, with strong built-in video analytics and surveillance-specific features like alerting and remote camera management. It is best suited for dedicated surveillance and security camera applications running primarily on Windows.

The Reality

The choice between the two depends on your project requirements: choose VisioForge for general-purpose C# video capture with cross-platform needs, screen recording, professional hardware, and diverse codec support. Choose Ozeki for ONVIF-focused surveillance applications with built-in analytics and camera management features.

Frequently Asked Questions

What is the best video capture SDK for C# .NET?
The best video capture SDK for C# depends on your requirements. VisioForge Video Capture SDK .NET offers the broadest feature set with cross-platform support, 10+ output formats, hardware-accelerated encoding, and sources ranging from webcams to IP cameras to professional hardware like Decklink and NDI. Ozeki Camera SDK is specialized for ONVIF IP camera applications with built-in analytics.
Can I capture video from an RTSP IP camera in C#?
Both SDKs support RTSP capture in C#. VisioForge Video Capture SDK .NET can save RTSP streams to MP4, MKV, MPEG-TS, and other formats with optional hardware acceleration. Ozeki Camera SDK connects to RTSP cameras with built-in motion detection and analytics. VisioForge additionally supports recording the original RTSP stream without re-encoding.
Which SDK supports screen capture and desktop recording?
Only VisioForge Video Capture SDK .NET includes screen capture SDK functionality. It can record full screen, specific windows, or regions at high frame rates with hardware-accelerated encoding. Ozeki Camera SDK does not support screen or desktop capture.
Do these SDKs work with .NET MAUI and Avalonia?
VisioForge Video Capture SDK .NET supports .NET MAUI, Avalonia UI, WPF, WinForms, WinUI 3, Uno Platform, and Blazor. Ozeki Camera SDK supports WinForms on Windows. If you need a cross-platform .NET camera SDK for modern UI frameworks, VisioForge is the only option.
Can I use hardware-accelerated encoding with these SDKs?
VisioForge Video Capture SDK .NET supports NVIDIA NVENC, Intel Quick Sync, AMD VCE/AMF, and Apple VideoToolbox for hardware-accelerated H.264, HEVC, and AV1 encoding. Ozeki Camera SDK does not include hardware acceleration — all encoding is done in software.
Which SDK is better for industrial cameras (GigE Vision, USB3 Vision)?
VisioForge Video Capture SDK .NET includes a GenICam SDK layer supporting GigE Vision and USB3 Vision industrial cameras. Ozeki Camera SDK does not support industrial camera protocols and is limited to consumer/commercial IP cameras via ONVIF and RTSP.
Is there a free video capture SDK for .NET?
VisioForge Video Capture SDK .NET offers a free license for non-commercial use. The trial version adds a watermark to the video output. Ozeki Camera SDK has a 20-day trial but does not offer a free non-commercial license.
How do I save an RTSP stream to a file in C#?
With VisioForge Video Capture SDK .NET, you can save an RTSP stream to file by configuring an RTSP source and an MP4/MKV/MPEG-TS output. The SDK supports recording the original stream without re-encoding (for zero-latency recording) or transcoding to any supported codec. Ozeki Camera SDK saves RTSP streams to MPEG-4 or AVI format.

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