---
title: metadataForSidecarFile
framework: MediaExtension
role: symbol
role_heading: Instance Property
platforms: [macOS 26.0+]
path: mediaextension/merawprocessor/metadataforsidecarfile
---

# metadataForSidecarFile

## Declaration

```swift
optional var metadataForSidecarFile: Data { get }
```

## Discussion

Discussion The metadata returned is a pre-formatted NSData that represents a fully-formed sidecar file, and should be compatible with the MediaExtension FormatReader. The metadata will contain the initial processing parameters from the sidecar file, along with any adjustments made on the RAW processor.