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# formatCode

The four-character code that encodes the pixel format of the Core Video image format.

```
var formatCode: UInt32 { get }
```

## Discussion

For example, the following code prints the format code of a <doc://com.apple.documentation/documentation/CoreVideo/kCVPixelFormatType_420YpCbCr8Planar> Core Video image format that equals the expected type:

```swift
let cvImageFormat = vImageCVImageFormat.make(
    format: .format420YpCbCr8Planar,
    matrix: kvImage_ARGBToYpCbCrMatrix_ITU_R_709_2.pointee,
    chromaSiting: .center,
    colorSpace: CGColorSpace(name: CGColorSpace.sRGB)!,
    alphaIsOpaqueHint: true)!

// Prints "true".
print(cvImageFormat.formatCode == kCVPixelFormatType_420YpCbCr8Planar)
```

## See Also

[`func vImageCVImageFormat_GetFormatCode(vImageConstCVImageFormat) -> UInt32`](/documentation/Accelerate/vImageCVImageFormat_GetFormatCode(_:))

Returns the four-character code that encodes the pixel format of a Core Video image format.


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