WCCAPI - WebCam Capturing API

Why?

The idea was to bring a trivial API for capturing video from a webcam.

Features

• Supports multiple video formats: RGB32, RGB24, YUY2 -
  that's actually only useful on Windows because of the way how mfapi works,
• Capturing video at all available FPSs on your webcam (up to 30),
• Choosing a custom resolution for frames,
• Enumerating all webcams connected to your device.

Limitations

• On Windows capturing is performed in a sync mode,
• Only one device is supported at once,
• Works only on Windows and macOS.

Future

• Add Linux support.

Usage

Windows

• Create an instance of the wwcc::Capturer
• Call wwcc::Capturer::Init providing device id, capture width, capture height and fps
• Allocate memory for your buffer of uint32_t (must be at least (capture width) * (capture height) * sizeof(uint32_t))
• Call wwcc::Capturer::SetBuffer providing your buffer
• Call wwcc::Capturer::DoCapture to capture one frame (it stops current thread until done)

macOS

• Create an instance of the mwcc::CaptureParams
• Call mwcc::Init providing device id, capture width, capture height and fps
• Allocate memory for your buffer of uint32_t (must be at least (capture width) * (capture height) * sizeof(uint32_t))
• Call mwcc::SetBuffer providing your buffer
• Call mwcc::DoCapture() to capture one frame (it runs asynchronously)

Notice

Compile it as an Objective-C++ code

General

• Each pixel is stored within a uint32_t value in the RGBA format