---
title: Global Codec Properties
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/1494121-global-codec-properties
---

# Global Codec Properties

These read-only properties disclose the capabilities of the codec and remain the same for all instances of the codec.

## Overview

Overview These properties are used with the AudioCodecGetProperty(_:_:_:_:) function. The values of these properties are independent of the codec’s internal state and cannot be changed. They can be read at any time the codec is open.

## Topics

### Constants

- [kAudioCodecPropertyFormatCFString](audiotoolbox/kaudiocodecpropertyformatcfstring.md)
- [kAudioCodecPropertyManufacturerCFString](audiotoolbox/kaudiocodecpropertymanufacturercfstring.md)
- [kAudioCodecPropertyNameCFString](audiotoolbox/kaudiocodecpropertynamecfstring.md)

## See Also

### Enumerations

- [Output Status Constants](audiotoolbox/1494122-output-status-constants.md)
- [Program Target Levels](audiotoolbox/1494116-program-target-levels.md)
- [Dynamic Range Control Modes](audiotoolbox/1494094-dynamic-range-control-modes.md)
- [Bit Rate Control Mode Constants](audiotoolbox/1494144-bit-rate-control-mode-constants.md)
- [Instance Codec Properties](audiotoolbox/1494111-instance-codec-properties.md)
- [Audio Codec Priming Method Constants](audiotoolbox/1494154-audio-codec-priming-method-const.md)
- [Audio Codec Quality Constants](audiotoolbox/1494130-audio-codec-quality-constants.md)
- [Audio Codec Routine Selectors](audiotoolbox/1494074-audio-codec-routine-selectors.md)
- [Audio Codec Delays](audiotoolbox/1494127-audio-codec-delays.md)
- [Audio Codec Delay Modes](audiotoolbox/1494050-audio-codec-delay-modes.md)
- [Audio Codec Properties](audiotoolbox/1494068-audio-codec-properties.md)
- [Audio Codec Errors](audiotoolbox/1494076-audio-codec-errors.md)