我正在使用带有 vimeo 的 javascript api，我发现如果我寻找视频中的特定位置，然后调用视频播放的“播放”，但我绑定(bind)到“播放”的事件不会触发。如果视频播放到结尾(或接近结尾)，以至于整个视频都缓存在我的电脑上，那么一切都开始工作了。不知什么原因，vimeo 没有就这个问题做出回应。所以我要问一个更普遍的问题——对于任何视频——youtube、vimeo、videotag 等，其他程序员是否遇到过这个问题？ (代码如下，请注意要查找您需要单击“下一步”按钮)
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<link href='/Styles/common.css' rel="stylesheet" type="text/css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script type="text/javascript" src="https://f.vimeocdn.com/js/froogaloop2.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css" />
<script type="text/javascript">
var globalcount = 0;
var windowwidth = 0;
var initialseek = true;
var is_chrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
var timeoutID;
var stoparray = new Array("48", "103.979", "346.513", "407.459");
var quiz = false;
var startPosition = 0;
var stoplength = stoparray.length;
var stopindex = -1;
var timeinterval = 10;
var defaultwidth = 3;
var gDuration;
var gPlayer;
var gvideowidth;
var gvideoheight;
var hiderank;
var gPlayer;
var vimeoPlayers;
</script>
</head>
<body>
<center>
<table>
<tr>
<td style="width:33%;text-align:right;padding-right:14px"></td>
<td style="width:33%">
<div id="HoldPlayer" style="position:relative">
<iframe src='https://player.vimeo.com/video/152639172?autoplay=0&api=1&player_id=player1'
id='player1'
width='640' height='360'
frameborder='0'></iframe>
</div>
</td>
<td style="width:33%"></td>
</tr>
</table>
<table style="width:100%">
<tr>
<td style="text-align:center">
Window (total time in seconds): <input type="text" id="windowwidth" maxlength="3" style="width: 30px;" />
<label><input type="checkbox" checked="checked" id="chkplayvid" />Play</label>
</td>
</tr>
</table>
</center>
<center>
<table>
<tr>
<td style="text-align:center">
<input type="button" id="nextbutton" onclick="nextPlayer(); return (false);" value="Next" />
</td>
</tr>
<tr>
<td align="center"></td>
</tr>
</table>
</center>
<div id="oPara"></div>
<script type="text/javascript">
// +++++++++++++
function ready2() {
setupEventListeners();
gPlayer.api('getDuration', function (value, player_id) {
gDuration = value; // this will be set whenever callback fires
playVideo();
});
}
// +++++++++++++
function setupEventListeners() {
gPlayer.addEvent('pause', pauseEvent);
gPlayer.addEvent('finish', endEvent);
gPlayer.addEvent('play', playEvent);
}
function endEvent() {
alert("end event!!!");
gidClearTimeout(timeoutID);
}
function pauseEvent() {
alert("pauseEvent!!!");
return;
}
function playEvent() {
alert("playEvent!!!");
globalcount = globalcount + 1;
if (initialseek) {
timeoutID = setTimeout(pausePlayer, 60);
initialseek = false;
}
else {
timeoutID = setTimeout(pausePlayer, windowwidth);
}
return;
}
$(document).ready(function () {
$("#windowwidth").val(defaultwidth);
setTimeout(addReadyEvent, 60);
});
// +++++++++++++
function addReadyEvent() {
var iframe = $('#player1')[0];
gPlayer = $f(iframe);
gPlayer.addEvent('ready', ready2);
}
// +++++++++++++
function showNextButton() {
$("#nextbutton").removeAttr('disabled');
}
// +++++++++++++
function playVideo() {
gPlayer.api('play');
return;
}
// +++++++++++++
function pausePlayer() {
gPlayer.api('pause');
$("#nextbutton").removeAttr('disabled');
return true;
}
// +++++++++++++
function nextPlayer() {
var startPosition = 0;
var str = "";
var prevpos = -5;
var stopPosition = 0;
var dur = gDuration;
windowwidth = 3;
windowwidth = parseFloat(windowwidth);
if (isNaN(windowwidth)) {
windowwidth = defaultwidth;
}
if (windowwidth < 1) {
windowwidth = 1;
}
if (windowwidth > 3600) {
windowwidth = 3600;
}
windowwidth = Math.round(windowwidth);
stopindex = stopindex + 1;
stopPosition = parseFloat(stoparray[stopindex]);
if (stopPosition > dur) {
stopPosition = dur;
}
/* was here */
startPosition = parseInt(stopPosition - windowwidth, 10);
gPlayer.api('seekTo', startPosition);
gPlayer.api('pause');
setTimeout(playVideo, 60);
return false;
}
</script>
</body>
</html>
最佳答案
Vimeo 回应:一种解决方法是先播放视频，然后立即进行搜索，然后 playEvent 将触发。实际上对我来说，对 seek 的调用似乎必须是任何调用序列的结束。
关于javascript - 在视频缓冲之前，事件不会起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35705091/