Video capture card SDK usually refers to a software development kit (SDK), which contains the libraries, documentation, and sample code that developers need to interact with video capture cards. Such SDKs allow developers to integrate video capture, encoding, decoding, and streaming functions in applications.
Video capture card SDKs provide developers with interfaces to interact with video capture card hardware, making it possible to integrate video capture and processing functions in applications. The following are the main functions that video capture card SDKs usually provide:
1. Video input capture: Receive video streams from video capture cards, which may be signals from cameras, analog signal sources, HDMI or SDI interfaces.
2. Real-time preview: Display real-time video preview in the application to facilitate monitoring the status of the video source.
3. Video recording: Save the video stream as a file, usually supporting multiple video formats, such as MP4, AVI, etc.
4. Video encoding and decoding: Support different video codecs, such as H.264, H.265, MPEG-4, etc., to encode or decode video streams.
5. Streaming transmission: Send video streams through the network, support RTSP, RTMP, WebRTC and other protocols, suitable for live broadcast scenarios.
6. Image processing: Provide image enhancement, color correction, scaling, cropping and other functions to improve video quality.
7. Audio acquisition and processing: Synchronously acquire audio signals and perform corresponding audio processing.
8. Device control: Allows control of various parameters of the video capture card, such as resolution, frame rate, gain, white balance, etc.
9. Multi-stream support: Process multiple video streams at the same time, suitable for multi-camera systems or applications that need to process multiple video sources.
10. Event notification: Provide an event callback mechanism to notify the application when the video source status changes or an error occurs. 11. Hardware acceleration: Use hardware acceleration to improve video processing efficiency and reduce CPU load.
12. Compatibility: Support multiple operating systems, such as Windows, macOS, Linux, etc., as well as different programming environments and frameworks.
13. Sample code and documentation: Provide detailed documentation and sample code to help developers quickly get started and debug.
14. Technical support: Manufacturers usually provide technical support services to answer technical questions during the development process.
The specific functions of the video capture card SDK will vary depending on the manufacturer and model, but the above list covers the core functions of most video capture card SDKs. To ensure that the SDK can meet your project needs, it is recommended to carefully read the SDK's official documentation and evaluate its feature list.
