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# hevcSyncSampleNALUnitType

Indicates sync sample NAL unit type.

```
var hevcSyncSampleNALUnitType: Int? { get set }
```

## Discussion

Corresponds to ‘sync’ sample group.

This attachment is read from and written to media files as specified in ISO/IEC 14496-15 section 8.4.4 Sync
sample sample grouping.

---

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