---
title: "VTVideoDecoderExtensionProperties(_:)"
framework: videotoolbox
role: symbol
role_heading: Function
path: "videotoolbox/vtvideodecoderextensionproperties(_:)"
---

# VTVideoDecoderExtensionProperties(_:)

## Declaration

```swift
func VTVideoDecoderExtensionProperties(_ formatDesc: CMFormatDescription) throws -> [VTExtensionPropertiesKey : Any]
```

## See Also

### Configuring a Session

- [Decompression Properties](videotoolbox/decompression-properties.md)