---
title: totalSampleDataLength
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablemovietrack/totalsampledatalength
---

# totalSampleDataLength

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

## Declaration

```swift
var totalSampleDataLength: Int64 { get }
```

## Discussion

Discussion The value may be 0 if the framework can’t determine the total sample data length.

## See Also

### Accessing track information

- [isPlayable](avfoundation/avmutablemovietrack/isplayable.md)
- [isDecodable](avfoundation/avmutablemovietrack/isdecodable.md)
- [isEnabled](avfoundation/avmutablemovietrack/isenabled.md)
- [isSelfContained](avfoundation/avmutablemovietrack/isselfcontained.md)
- [hasProtectedContent](avfoundation/avmutablemovietrack/hasprotectedcontent.md)
- [hasMediaCharacteristic(_:)](avfoundation/avmutablemovietrack/hasmediacharacteristic(_:).md)