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# RAW Processing Properties

Properties that you use to configure a RAW processing session.

## Topics

### Properties

[`extern CFStringRef const kVTRAWProcessingPropertyKey_MetalDeviceRegistryID;`](/documentation/VideoToolbox/kVTRAWProcessingPropertyKey_MetalDeviceRegistryID)

This property requests that the Metal device corresponding to the specified registryID be used for any Metal related processing.

[`let kVTRAWProcessingPropertyKey_OutputColorAttachments: CFString!`](/documentation/VideoToolbox/kVTRAWProcessingPropertyKey_OutputColorAttachments)

The color-related image buffer keys and values that will be attachments to the returned pixel buffers.

[`let kVTRAWProcessingPropertyKey_MetadataForSidecarFile: CFString!`](/documentation/VideoToolbox/kVTRAWProcessingPropertyKey_MetadataForSidecarFile)

### Functions

[`func VTRAWProcessorExtensionProperties(CMFormatDescription) throws -> [VTExtensionPropertiesKey : Any]`](/documentation/VideoToolbox/VTRAWProcessorExtensionProperties(_:))


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