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# discontinuity

Pass this flag to the [`AudioFileStreamParseBytes(_:_:_:_:)`](/documentation/AudioToolbox/AudioFileStreamParseBytes(_:_:_:_:)) function to signal a discontinuity in the audio data.

```
static var discontinuity: AudioFileStreamParseFlags { get }
```

## Discussion

Any partial packet straddling a buffer boundary is discarded to avoid having the parser call your callback with a corrupt packet. After a discontinuity occurs, the [`AudioFileStreamSeek(_:_:_:_:)`](/documentation/AudioToolbox/AudioFileStreamSeek(_:_:_:_:)) function might return approximate values for some data formats.

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