---
title: "vImageCVImageFormat_GetFormatCode(_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/vimagecvimageformat_getformatcode(_:)"
---

# vImageCVImageFormat_GetFormatCode(_:)

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

## Declaration

```swift
func vImageCVImageFormat_GetFormatCode(_ format: vImageConstCVImageFormat) -> UInt32
```

## Parameters

- `format`: The Core Video image format to query.

## Return Value

Return Value The four-character code of the image format, such as kCVPixelFormatType_420YpCbCr8Planar.

## Discussion

Discussion The functions that create Core Video image formats, such as vImageCVImageFormat_CreateWithCVPixelBuffer(_:), return a vImageCVImageFormat. The following code shows how you create a vImageConstCVImageFormat representation of a vImageCVImageFormat instance to pass to vImageCVImageFormat_GetFormatCode(_:): let formatCode = withUnsafeBytes(of: cvImageFormat) { bytes in     let format = bytes.assumingMemoryBound(         to: vImageConstCVImageFormat.self).first!          return vImageCVImageFormat_GetFormatCode(format) }

## See Also

### Related Documentation

- [formatCode](accelerate/vimagecvimageformat/formatcode.md)