---
title: "CMSampleBuffer.TimingPerSample.sequential(startingAt:)"
framework: coremedia
role: symbol
role_heading: Case
path: "coremedia/cmsamplebuffer/timingpersample/sequential(startingat:)"
---

# CMSampleBuffer.TimingPerSample.sequential(startingAt:)

All samples are adjacent to each other and have the same duration.

## Declaration

```swift
case sequential(startingAt: CMSampleTimingInfo)
```

## Discussion

Discussion Only the fist sample will have the decode time specified here. Samples must have the same decode and presentation order.