---
title: "CMTimeMappingShow(_:)"
framework: Core Media
role: symbol
role_heading: Function
platforms: [iOS 9.0+, iPadOS 9.0+, Mac Catalyst 13.1+, macOS 10.11+, tvOS 9.0+, visionOS 1.0+, watchOS 6.0+]
path: "coremedia/cmtimemappingshow(_:)"
---

# CMTimeMappingShow(_:)

Prints a description of a time mapping to standard output.

## Declaration

```swift
func CMTimeMappingShow(_ mapping: CMTimeMapping)
```

## Parameters

- `mapping`: The time mapping to show.

## Discussion

Discussion You typically use this function for debugging purposes.

## See Also

### Representing Time Mappings

- [CMTimeMappingCopyAsDictionary(_:allocator:)](coremedia/cmtimemappingcopyasdictionary(_:allocator:).md)
- [CMTimeMappingCopyDescription(allocator:mapping:)](coremedia/cmtimemappingcopydescription(allocator:mapping:).md)