VTPixelTransferSession

Overview

A pixel transfer session supports the copying and/or conversion of images from source pixel buffers to destination pixel buffers. The basic workflow used when working with a pixel transfer session is as follows:

1. Create a pixel transfer session by calling VTPixelTransferSessionCreate(allocator:pixelTransferSessionOut:).

2. Optionally, configure the session with your desired Pixel Transfer Properties by calling VTSessionSetProperty(_:key:value:) or VTSessionSetProperties(_:propertyDictionary:).

3. Transfer images by calling VTPixelTransferSessionTransferImage(_:from:to:).

4. When you finish with the pixel transfer session, call VTPixelTransferSessionInvalidate(_:) to tear it down, and CFRelease to free its memory.

Topics

Creating Sessions

• VTPixelTransferSessionCreate(allocator:pixelTransferSessionOut:)

Configuring Sessions

• Pixel Transfer Properties

Converting Image Data

• VTPixelTransferSessionTransferImage(_:from:to:)

Inspecting Sessions

• VTPixelTransferSessionGetTypeID()

Ending Sessions

• VTPixelTransferSessionInvalidate(_:)

Data Types

• VTPixelTransferSession

See Also

Transformation

• VTPixelRotationSession