---
title: totalSampleDataLength
framework: avfoundation
role: symbol
role_heading: Type Property
path: avfoundation/avpartialasyncproperty/totalsampledatalength
---

# totalSampleDataLength

The total number of bytes of sample data the track requires.

## Declaration

```swift
static var totalSampleDataLength: AVAsyncProperty<Root, Int64> { get }
```

## Discussion

Discussion Use the load(_:isolation:) method to retrieve the property value.

## See Also

### Loading track information

- [formatDescriptions](avfoundation/avpartialasyncproperty/formatdescriptions.md)
- [isPlayable](avfoundation/avpartialasyncproperty/isplayable-6txa5.md)
- [isDecodable](avfoundation/avpartialasyncproperty/isdecodable.md)
- [isEnabled](avfoundation/avpartialasyncproperty/isenabled.md)
- [isSelfContained](avfoundation/avpartialasyncproperty/isselfcontained.md)
- [mediaCharacteristics](avfoundation/avpartialasyncproperty/mediacharacteristics.md)