---
title: kCMMetadataBaseDataType_PerspectiveTransformF64
framework: coremedia
role: symbol
role_heading: Global Variable
path: coremedia/kcmmetadatabasedatatype_perspectivetransformf64
---

# kCMMetadataBaseDataType_PerspectiveTransformF64

A 3x3 matrix of 64-bit big endian floating point numbers the system stores in row-major order that specify a perspective transform.

## Declaration

```swift
let kCMMetadataBaseDataType_PerspectiveTransformF64: CFString
```

## See Also

### Constants

- [kCMMetadataBaseDataType_RawData](coremedia/kcmmetadatabasedatatype_rawdata.md)
- [kCMMetadataBaseDataType_UTF8](coremedia/kcmmetadatabasedatatype_utf8.md)
- [kCMMetadataBaseDataType_UTF16](coremedia/kcmmetadatabasedatatype_utf16.md)
- [kCMMetadataBaseDataType_GIF](coremedia/kcmmetadatabasedatatype_gif.md)
- [kCMMetadataBaseDataType_JPEG](coremedia/kcmmetadatabasedatatype_jpeg.md)
- [kCMMetadataBaseDataType_PNG](coremedia/kcmmetadatabasedatatype_png.md)
- [kCMMetadataBaseDataType_BMP](coremedia/kcmmetadatabasedatatype_bmp.md)
- [kCMMetadataBaseDataType_Float32](coremedia/kcmmetadatabasedatatype_float32.md)
- [kCMMetadataBaseDataType_Float64](coremedia/kcmmetadatabasedatatype_float64.md)
- [kCMMetadataBaseDataType_SInt8](coremedia/kcmmetadatabasedatatype_sint8.md)
- [kCMMetadataBaseDataType_SInt16](coremedia/kcmmetadatabasedatatype_sint16.md)
- [kCMMetadataBaseDataType_SInt32](coremedia/kcmmetadatabasedatatype_sint32.md)
- [kCMMetadataBaseDataType_SInt64](coremedia/kcmmetadatabasedatatype_sint64.md)
- [kCMMetadataBaseDataType_UInt8](coremedia/kcmmetadatabasedatatype_uint8.md)
- [kCMMetadataBaseDataType_UInt16](coremedia/kcmmetadatabasedatatype_uint16.md)