时间范围内的HTML5视频 [英] HTML5 video within time frame

问题描述

所以我正在开发一个交互式HTML5视频播放器，目前使用popcorn.js时一切正常，但我现在正试着回去让我的播放器工作而不依赖于popcorn.js。

So I am working on an interactive HTML5 video player, and currently have everything working while using popcorn.js, but I am now trying to go back and make my player work without being dependent on popcorn.js.

使用popcorn.js时，您可以使用以下代码：

When working with popcorn.js, you can use code like:

popcorn.code((
    start: 0,
    end: 5,
    onStart: function( options ) {
        //put code here
    }
}}

当您的视频时间从0到5时，您的代码将被执行。现在，我我试图在视频的某个时间范围内执行某些代码块，但我似乎无法让它正常工作，只是想知道是否有人可以看到我的错误。

and your code will be executed when the time of your video spans from 0 through 5. Now, I am trying to have certain blocks of code executed within a certain timeframe of the video, but i can't seem to get it working right and was just wondering if someone can see where i am going about this wrong.

while (myVideo.currentTime >= 0 && myVideo.currentTime <= 5)
{
    console.log(myVideo.currentTime);
}

这个while循环是al所以运行速度太快，导致浏览器减速并冻结。
但是，如果我尝试使用if循环而不是while循环，它（显然）只检查一次。

This while loop is also running so fast that it causes the browser to slow down and freeze. However, if i try using an if loop instead of a while loop, it (obviously) only checks it once.

推荐答案

你可以检查少于而循环。

var check = setInterval(function() {
    if (myVideo.currentTime >= 5) {
        clearInterval(check);
        console.log("5 seconds reached");
    }
}, 500);

当用户暂停并重新开始或者他跳到另一个时间时，你可以再次开始这个时间表。

You than can start this again when the user pauses and starts over or if he jumps to another time within the timeline.

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