---
title: kVTRAWProcessingPropertyKey_MetadataForSidecarFile
framework: Video Toolbox
role: symbol
role_heading: Global Variable
platforms: [macOS 26.0+]
path: videotoolbox/kvtrawprocessingpropertykey_metadataforsidecarfile
---

# kVTRAWProcessingPropertyKey_MetadataForSidecarFile

## Declaration

```swift
let kVTRAWProcessingPropertyKey_MetadataForSidecarFile: CFString!
```

## Discussion

Discussion This property, if supported, returns the current processing metadata on the RAW Processor. The returned value can be used by the caller to create, or overwrite an existing sidecar file. This property is not supported by all RAWProcessors. The metadata returned represents a fully-formed sidecar file, and should be compatible with the MediaExtension FormatReader.

## See Also

### Properties

- [kVTRAWProcessingPropertyKey_OutputColorAttachments](videotoolbox/kvtrawprocessingpropertykey_outputcolorattachments.md)