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# CMSampleTimingInfo

A collection of timing information for a sample in a sample buffer.

```
struct CMSampleTimingInfo
```

## Overview

A single `CMSampleTimingInfo` struct can describe every individual sample in a `CMSampleBuffer`, if the samples all have the same duration and are in presentation order with no gaps.

## Topics

### Constants

[`invalid`](/documentation/CoreMedia/CMSampleTimingInfo/invalid)

### Initializers

[`init()`](/documentation/CoreMedia/CMSampleTimingInfo/init())

[`init(duration:presentationTimeStamp:decodeTimeStamp:)`](/documentation/CoreMedia/CMSampleTimingInfo/init(duration:presentationTimeStamp:decodeTimeStamp:))

### Properties

[`decodeTimeStamp`](/documentation/CoreMedia/CMSampleTimingInfo/decodeTimeStamp)

The time at which the sample will be decoded.

[`duration`](/documentation/CoreMedia/CMSampleTimingInfo/duration)

The duration of the sample.

[`presentationTimeStamp`](/documentation/CoreMedia/CMSampleTimingInfo/presentationTimeStamp)

The time at which the sample will be presented.


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