---
title: Metadata Base Data Types
framework: coremedia
role: collectionGroup
role_heading: API Collection
path: coremedia/metadata-base-data-types
---

# Metadata Base Data Types

Constants that describe metadata base data types.

## Topics

### 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)
- [kCMMetadataBaseDataType_UInt32](coremedia/kcmmetadatabasedatatype_uint32.md)
- [kCMMetadataBaseDataType_UInt64](coremedia/kcmmetadatabasedatatype_uint64.md)
- [kCMMetadataBaseDataType_PointF32](coremedia/kcmmetadatabasedatatype_pointf32.md)
- [kCMMetadataBaseDataType_DimensionsF32](coremedia/kcmmetadatabasedatatype_dimensionsf32.md)
- [kCMMetadataBaseDataType_RectF32](coremedia/kcmmetadatabasedatatype_rectf32.md)
- [kCMMetadataBaseDataType_AffineTransformF64](coremedia/kcmmetadatabasedatatype_affinetransformf64.md)
- [kCMMetadataBaseDataType_PerspectiveTransformF64](coremedia/kcmmetadatabasedatatype_perspectivetransformf64.md)
- [kCMMetadataBaseDataType_PolygonF32](coremedia/kcmmetadatabasedatatype_polygonf32.md)
- [kCMMetadataBaseDataType_PolylineF32](coremedia/kcmmetadatabasedatatype_polylinef32.md)
- [kCMMetadataBaseDataType_JSON](coremedia/kcmmetadatabasedatatype_json.md)

## See Also

### Constants

- [Metadata Identifier Error Codes](coremedia/metadata-identifier-errors.md)
- [Metadata Registry Error Codes](coremedia/metadata-registry-errors.md)
- [Metadata Identifier Keyspaces](coremedia/metadata-identifier-keyspaces.md)
- [Metadata Identifiers](coremedia/metadata-identifiers.md)
- [Metadata Data Types](coremedia/metadata-data-types.md)