VideoClip.length

Description

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

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 and VideoPlayer.frameRate to get more accurate results.

// This script outputs the length of the video clip given by the VideoClip component
// and the length given by calculating the VideoPlayer 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); 
    }
}