---
title: isLockedVideoFrameDurationSupported
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedeviceinput/islockedvideoframedurationsupported
---

# isLockedVideoFrameDurationSupported

Indicates whether the device input supports locked frame durations.

## Declaration

```swift
var isLockedVideoFrameDurationSupported: Bool { get }
```

## Discussion

Discussion See activeLockedVideoFrameDuration for more information on video frame duration locking.

## See Also

### Locking frame duration

- [activeLockedVideoFrameDuration](avfoundation/avcapturedeviceinput/activelockedvideoframeduration.md)