---
title: createDictionaryFromFormat
framework: kernel
role: symbol
role_heading: Type Method
path: kernel/ioaudiostream/1580027-createdictionaryfromformat
---

# createDictionaryFromFormat

## Declaration

```occ
static OSDictionary * createDictionaryFromFormat(const IOAudioStreamFormat *streamFormat, const IOAudioStreamFormatExtension *formatExtension, OSDictionary *formatDict);
```