---
name: "AuBucketAttributes"
section: "3nas"
platform: "linux"
package: "libaudio-dev"
version: "1.9.4-9"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/AuBucketAttributes"
---

# AuBucketAttributes(3nas)

bucket attributes structure

## Name

**AuBucketAttributes** - bucket attributes structure

## Structures

\#include \<audio/audiolib.h\>

typedef struct \_AuBucketAttributes\
 {\
\
     . . .\
 }**AuBucketAttributes**;

## Members

Do not dereference the members of the **AuBucketAttributes** structure directly. Instead use the access macros.

*ba* is a pointer to a **AuBucketAttributes** structure.

- **AuBucketValueMask**(*ba*)

  Accesses the **AuMask** value indicating which attributes are present. This is a bitwise inclusive OR of these constants: **AuCompCommonIDMask**, **AuCompCommonKindMask**, **AuCompCommonUseMask**, **AuCompCommonFormatMask**, **AuCompCommonNumTracksMask**, **AuCompCommonAccessMask**, **AuCompCommonDescriptionMask**, **AuCompBucketSampleRateMask**, and **AuCompBucketNumSamplesMask**.

- **AuBucketChangableMask**(*ba*)

  Accesses the **AuMask** value indicating which of the attributes can be changed. This is a bitwise inclusive OR of these constants: **AuCompCommonIDMask**, **AuCompCommonKindMask**, **AuCompCommonUseMask**, **AuCompCommonFormatMask**, **AuCompCommonNumTracksMask**, **AuCompCommonAccessMask**, **AuCompCommonDescriptionMask**, **AuCompBucketSampleRateMask**, and **AuCompBucketNumSamplesMask**.

- **AuBucketIdentifier**(*ba*)

  Accesses the **AuBucketID** ID of the bucket.

- **AuBucketKind**(*ba*)

  Accesses the int value indicating the kind of component. Buckets will always be **AuComponentKindBucket**.

- **AuBucketUse**(*ba*)

  Accesses the **AuMask** value indicating what uses of the bucket are permitted. This is a bitwise inclusive OR of these constants: **AuComponentUseImportMask** and **AuComponentUseExportMask**.

- **AuBucketFormat**(*ba*)

  Accesses the int value indicating the audio data format the bucket uses. Currently, the following formats are defined: **AuFormatULAW8**, **AuFormatLinearUnsigned8**, **AuFormatLinearSigned8**, **AuFormatLinearSigned16MSB**, **AuFormatLinearUnsigned16MSB**, **AuFormatLinearSigned16LSB**, and **AuFormatLinearUnsigned16LSB**.

- **AuBucketNumTracks**(*ba*)

  Accesses the int value indicating the number of tracks the bucket supports.

- **AuBucketAccess**(*ba*)

  Accesses the **AuMask** value indicating what kinds of access the bucket allows. This is a bitwise inclusive OR of these constants: **AuAccessImportMask**, **AuAccessExportMask**, **AuAccessDestroyMask**, and **AuAccessListMask**.

- **AuBucketDescription**(*ba*)

  Accesses the **AuString** structure containing a textual description of the bucket.

- **AuBucketSampleRate**(*ba*)

  Accesses the unsigned int value indicating the sample rate of the bucket.

- **AuBucketNumSamples**(*ba*)

  Accesses the **AuUint32** value indicating the number of samples the bucket contains.

## Description

The **AuBucketAttributes** structure describes the server-local storage of audio data.

## See Also

**AuGetBucketAttributes**, **AuListBuckets**.

audiolib - **Network Audio System** C Language Interface