---
title: Audio Codec Routine Selectors
framework: audiotoolbox
role: collectionGroup
role_heading: API Collection
path: audiotoolbox/1494074-audio-codec-routine-selectors
---

# Audio Codec Routine Selectors

Selectors used by the Component Manager to call routines implemented by the codec and exposed to developers through the Audio Codec Services API. These selectors are for use by codec developers; if you are calling Audio Codec Services functions, you don’t need to use these constants.

## Topics

### Constants

- [kAudioCodecAppendInputBufferListSelect](audiotoolbox/kaudiocodecappendinputbufferlistselect.md)
- [kAudioCodecAppendInputDataSelect](audiotoolbox/kaudiocodecappendinputdataselect.md)
- [kAudioCodecGetPropertyInfoSelect](audiotoolbox/kaudiocodecgetpropertyinfoselect.md)
- [kAudioCodecGetPropertySelect](audiotoolbox/kaudiocodecgetpropertyselect.md)
- [kAudioCodecInitializeSelect](audiotoolbox/kaudiocodecinitializeselect.md)
- [kAudioCodecProduceOutputBufferListSelect](audiotoolbox/kaudiocodecproduceoutputbufferlistselect.md)
- [kAudioCodecProduceOutputDataSelect](audiotoolbox/kaudiocodecproduceoutputdataselect.md)
- [kAudioCodecResetSelect](audiotoolbox/kaudiocodecresetselect.md)
- [kAudioCodecSetPropertySelect](audiotoolbox/kaudiocodecsetpropertyselect.md)
- [kAudioCodecUninitializeSelect](audiotoolbox/kaudiocodecuninitializeselect.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)
- [Global Codec Properties](audiotoolbox/1494121-global-codec-properties.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 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)