---
title: target
framework: coremedia
role: symbol
role_heading: Instance Property
path: coremedia/cmtimemapping/target
---

# target

A time range on the target timeline.

## Declaration

```swift
var target: CMTimeRange
```

## Discussion

Discussion If the target and source have different durations, the source segment should play at a rate of source.duration / target.duration to fit.

## See Also

### Accessing Time Ranges

- [source](coremedia/cmtimemapping/source.md)