# length

> The length of the video clip in seconds. (Read Only).

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.Video](/engine/6000.5/script-reference/unityengine/video.md)
* **Assembly:** UnityEngine.VideoModule

```csharp
public double length { get; }
```

### Remarks

You can use this property to ensure any events, sounds, visual effects, logic etc. you want to trigger during the video happen within the time limits of the video.

**Note**: The VideoClip can return an inaccurate length because the external encoder can be imprecise. Use [VideoPlayer.frameCount](/engine/6000.5/script-reference/unityengine/video/videoplayer/framecount.md) and [VideoPlayer.frameRate](/engine/6000.5/script-reference/unityengine/video/videoplayer/framerate.md) to get more accurate results.

### Examples

```csharp
// This script outputs the length of the video clip given by the <see cref="UnityEngine.Video.VideoClip"></see> component
// and the length given by calculating the <see cref="UnityEngine.Video.VideoPlayer"></see> frame rate and frame count. These can 
// sometimes give different results, but the VideoPlayer is more accurate, especially after the video
// plays through once. 

using UnityEngine;
using UnityEngine.Video;

public class VideoClipExample : MonoBehaviour
{
    VideoPlayer videoPlayer; 

    void Start()
    {
        if(videoPlayer != null)
        {
            videoPlayer = GetComponent<VideoPlayer>();
            videoPlayer.isLooping = true;
            VideoClip videoClip = videoPlayer.clip; 

            if (videoClip != null)
            {
                CalculateVideoLength(videoClip);
                videoPlayer.loopPointReached += OnLoop; 
                videoPlayer.Play(); 
            }
            else
            {
                Debug.LogWarning("VideoClip is not assigned.");
            }
        }
        else
        {
            Debug.LogWarning("VideoPlayer is not assigned.");
        }
    }

    void CalculateVideoLength(VideoClip clip)
    {
        // Get frame count and frame rate from the VideoPlayer. 
        ulong frameCount = videoPlayer.frameCount;
        double frameRate = videoPlayer.frameRate;

        // Calculate the length in seconds. 
        double lengthInSeconds = frameCount / frameRate;

        // Output the length from the VideoClip and the calculated length. 
        Debug.Log($"Initial clip length: {clip.length} seconds.");
        Debug.Log($"Calculated Length: {lengthInSeconds} seconds.");
    }

    void OnLoop(VideoPlayer vp)
    {
        // Recalculate the video length with each loop. 
        CalculateVideoLength(vp.clip); 
    }
}
```