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# Media Toolbox

Enable support for media format readers; tap and process audio from an audio mix.

## Overview

Call the [`MTRegisterProfessionalVideoWorkflowFormatReaders()`](/documentation/MediaToolbox/MTRegisterProfessionalVideoWorkflowFormatReaders()) function to enable the use of custom <doc://com.apple.documentation/documentation/MediaExtension> format readers.

Use an [`MTAudioProcessingTap`](/documentation/MediaToolbox/MTAudioProcessingTap) to tap audio from an <doc://com.apple.documentation/documentation/AVFoundation/AVPlayer>.

## Topics

### Professional video workflows

[`MTRegisterProfessionalVideoWorkflowFormatReaders()`](/documentation/MediaToolbox/MTRegisterProfessionalVideoWorkflowFormatReaders())

Enables the use of media format readers that support professional video workflows.

### Audio Taps

[`MTAudioProcessingTapCreate(_:_:_:_:)`](/documentation/MediaToolbox/MTAudioProcessingTapCreate(_:_:_:_:))

Creates a new audio processing tap.

[`MTAudioProcessingTapGetSourceAudio(_:_:_:_:_:_:)`](/documentation/MediaToolbox/MTAudioProcessingTapGetSourceAudio(_:_:_:_:_:_:))

Retrieves source audio for an audio processing tap.

[`MTAudioProcessingTapGetStorage(_:)`](/documentation/MediaToolbox/MTAudioProcessingTapGetStorage(_:))

Retrieves a custom storage pointer for an audio processing tap.

[`MTAudioProcessingTapGetTypeID()`](/documentation/MediaToolbox/MTAudioProcessingTapGetTypeID())

Retrieves the type identifier for this audio processing tap.

[`MTAudioProcessingTapFlags`](/documentation/MediaToolbox/MTAudioProcessingTapFlags)

Flags that indicate where to tap the audio.

[`MTAudioProcessingTap`](/documentation/MediaToolbox/MTAudioProcessingTap)

An audio processing tap object.

### Utility

[`MTCopyLocalizedNameForMediaType(_:)`](/documentation/MediaToolbox/MTCopyLocalizedNameForMediaType(_:))

Returns a localized name for the specified media type.

[`MTCopyLocalizedNameForMediaSubType(_:_:)`](/documentation/MediaToolbox/MTCopyLocalizedNameForMediaSubType(_:_:))

Returns a localized name for the specified media type and subtype.

### Enumerations

[Anonymous Enumerations](/documentation/MediaToolbox/anonymous-enums)


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