检测VideoPlayer何时播放完毕 [英] Detect when VideoPlayer has finished playing

问题描述

我有一个MovieController类，用于管理项目中的视频.我正在使用Unity 5.6中引入的新视频播放器组件.

I have a MovieController class that manages videos in my project. I'm using the new video player component introduced in Unity 5.6.

我想在电影播放完后调用一个方法.到目前为止，如您所见，此方法只是一个Debug.Log:

I would like to call a method when a movie has finished playing. So far, this method is only a Debug.Log, as you can see:

using UnityEngine;
using UnityEngine.Video;

public class MovieController : MonoBehaviour
{
    private VideoPlayer m_VideoPlayer;

    void Awake () 
    {
        m_VideoPlayer = GetComponent<VideoPlayer>();
        m_VideoPlayer.loopPointReached += OnMovieFinished; // loopPointReached is the event for the end of the video
    }

    void OnMovieFinished(VideoPlayer player)
    {
        Debug.Log("Event for movie end called");
        player.Stop();
    }
}

我的问题是OnMovieFinished在视频末尾没有被调用，而我最终只是黑屏，而控制台中什么也没有.

My issue is that the OnMovieFinished is not called at the end of the video, and I just end up with a black screen and nothing in the console.

推荐答案

我不信任或使用VideoPlayer API中的事件，因为我也遇到了问题.您看到的是一个已经几个月没有修复的错误.

I don't trust or use the events from the VideoPlayer API because I've ran into problems with them too. What you see is a bug that hasn't been fixed for months.

如果要检测视频是否已完成播放，请使用协程检查while循环中的每帧videoPlayer.isPlaying.当while循环存在时，表示视频已播放完毕.

If you want to detect if video has finished playing, use a coroutine to to check videoPlayer.isPlaying every frame in a while loop. When the while loop exists, it means that the video has finished playing.

while (videoPlayer.isPlaying)
{
    yield return null;
}

//Done Playing

我现在无法测试此功能，以检查暂停功能是否影响videoPlayer.isPlaying，但您可以自己进行测试.

I can't test this right now to check if the pause function affects videoPlayer.isPlaying but you can test that by yourself.

另一种方法是检查 frame 与 frameCount 相同.当这是真的时，您就知道视频已经播放完了.

Another way to do this is to check if frame is the-same as frameCount. When this is true, you know that the video has finished playing.

if(videoPlayer.frame == videoPlayer.frameCount)
{
    //Video has finshed playing!
}

如果这些方法都不能解决您的问题，请提交错误报告.

If none of these solved your problem then file for a bug report.

这篇关于检测VideoPlayer何时播放完毕的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！