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# videoComposition

Creates a new mutable video composition.

```
+ (AVMutableVideoComposition *) videoComposition;
```

## Return Value

A newly created and initialized instance of `AVMutableVideoComposition`.

## Discussion

The returned `AVMutableVideoComposition` has the following properties:

- A [`frameDuration`](/documentation/AVFoundation/AVMutableVideoComposition/frameDuration) of <doc://com.apple.documentation/documentation/CoreMedia/CMTime/zero>.
- A [`renderSize`](/documentation/AVFoundation/AVMutableVideoComposition/renderSize) of `{0.0, 0.0}`.
- A `nil` array of [`instructions`](/documentation/AVFoundation/AVMutableVideoComposition/instructions).
- The [`animationTool`](/documentation/AVFoundation/AVMutableVideoComposition/animationTool) property set to `nil`.

---

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