檢測尋視頻事件HMTL5（主要在iOs4上）

Question

我需要檢測seeking事件，因為iOS4的還有的seeked但沒有尋求事件。 我不想檢測設備，而是檢測功能。

我可以做一個糟糕的addEvent / fireEvent ，但我正在尋找像'seeking' in myElement一樣性感的東西。

有什么解決辦法嗎？

Answer 1

var lastUnixTimeStamp;
var lastCurrentVideoTime;

videoplayer.addEvent('timeupdate',function(){

    if( !lastUnixTimeStamp && !lastCurrentVideoTime ){  //not defined at first timeupdate event
         lastUnixTimeStamp = new Date().getTime();
         lastCurrentVideoTime = videoplayer.currentTime;
         return;
    }

    var videoTimeOffset = videoplayer.currentTime - lastCurrentVideoTime;  //how many milliseconds was video running
    var realTimeOffset = new Date().getTime() - lastUnixTimeStamp;  //how many milliseconds were real time running

    //guess the numbers are not accurate, so if the difference between both is f.e. < 100ms, video runs normally 
   if( (videoTimeOffset - realTimeOffset) > 100 ){
       //do your seeking magic
   }

    lastUnixTimeStamp = new Date().getTime();
    lastCurrentVideoTime = videoplayer.currentTime;


})

正如上面評論中提到的，可能不是最好的解決方案，但應該這樣做。 祝你好運

Answer 2

此解決方案僅在您向前尋求時才有效。 如果您希望它向后搜索，則必須驗證 videoTimeOffset 是否為負：

var lastUnixTimeStamp;
var lastCurrentVideoTime;

videoplayer.addEvent('timeupdate',function(){

if( !lastUnixTimeStamp && !lastCurrentVideoTime ){  //not defined at first timeupdate event
     lastUnixTimeStamp = new Date().getTime();
     lastCurrentVideoTime = videoplayer.currentTime;
     return;
}

var videoTimeOffset = videoplayer.currentTime - lastCurrentVideoTime;  //how many milliseconds was video running
var realTimeOffset = new Date().getTime() - lastUnixTimeStamp;  //how many milliseconds were real time running

//guess the numbers are not accurate, so if the difference between both is f.e. < 100ms, video runs normally 
if( (videoTimeOffset - realTimeOffset) > 100 || (videoTimeOffset < 0 )){
   //do your seeking magic
}

lastUnixTimeStamp = new Date().getTime();
lastCurrentVideoTime = videoplayer.currentTime;


})