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# AudioTimeStampFlags

A structure that represents flags for a timestamp.

```
struct AudioTimeStampFlags
```

## Topics

### Initializers

[`init(rawValue:)`](/documentation/CoreAudioTypes/AudioTimeStampFlags/init(rawValue:))

Creates a flag with an unsigned-integer value.

### Type Properties

[`kAudioTimeStampHostTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/hostTimeValid)

A flag that indicates that the host time is valid.

[`kAudioTimeStampRateScalarValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/rateScalarValid)

A flag that indicates that the rate scalar is valid.

[`kAudioTimeStampSampleHostTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/sampleHostTimeValid)

A flag that indicates that the sample frame time and the host time are valid.

[`kAudioTimeStampSampleTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/sampleTimeValid)

A flag that indicates that the sample frame time is valid.

[`kAudioTimeStampSMPTETimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/smpteTimeValid)

A flag that indicates that the SMPTE time is valid.

[`kAudioTimeStampWordClockTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/wordClockTimeValid)

A flag that indicates that the word clock time is valid.

### Constants

[`kAudioTimeStampNothingValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/kAudioTimeStampNothingValid)

A flag that indicates no fields are valid.

[`kAudioTimeStampHostTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/hostTimeValid)

A flag that indicates that the host time is valid.

[`kAudioTimeStampRateScalarValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/rateScalarValid)

A flag that indicates that the rate scalar is valid.

[`kAudioTimeStampSampleHostTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/sampleHostTimeValid)

A flag that indicates that the sample frame time and the host time are valid.

[`kAudioTimeStampSampleTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/sampleTimeValid)

A flag that indicates that the sample frame time is valid.

[`kAudioTimeStampSMPTETimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/smpteTimeValid)

A flag that indicates that the SMPTE time is valid.

[`kAudioTimeStampWordClockTimeValid`](/documentation/CoreAudioTypes/AudioTimeStampFlags/wordClockTimeValid)

A flag that indicates that the word clock time is valid.

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`ExpressibleByArrayLiteral`](/documentation/Swift/ExpressibleByArrayLiteral)

[`OptionSet`](/documentation/Swift/OptionSet)

[`SetAlgebra`](/documentation/Swift/SetAlgebra)

[`Sendable`](/documentation/Swift/Sendable)

[`Equatable`](/documentation/Swift/Equatable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

---

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