我使用jQuery循环插件来旋转图像和FLV视频的混合。对于图像,我有固定的超时时间为3000ms,但对于视频,其基于视频长度,这就是我的问题开始的地方。我总是得到我的第一个视频的持续时间为:
var value = 0;
$(document).ready(function() {
$('.slideshow').cycle({
fx:'scrollLeft,scrollRight',
speed: 1500,
timeoutFn: valueFn
});
function valueFn(currElement, nextElement, opts, isForward){
value = parseInt($('#duration').val());
return value;
}
});
...
...
<div id="image">
<ul class="slideshow">
<?php
$dir = "media/images";
if (is_dir($dir)) {
if (($dh = opendir($dir))) {
$i = 0;
$name = 'FLVPlayer';
while (($file = readdir($dh)) !== false) {
if ($file == '.' || $file == '..')
continue;
$ext = explode(".", $file);
if (@$ext[1] == null)
continue;
switch ($ext[1]) {
case "jpg":
echo "<input type="hidden" id="duration" name="val" value="3000" />
<li><img src="media/images/" . $file . "" width="848" height="608" /></li>";
break;
case "flv":
$flv = fopen("media/images/".$file, "rb");
fseek($flv, -4, SEEK_END);
$arr = unpack('N', fread($flv, 4));
$last_tag_offset = $arr[1];
fseek($flv, -($last_tag_offset + 4), SEEK_END);
fseek($flv, 4, SEEK_CUR);
$t0 = fread($flv, 3);
$t1 = fread($flv, 1);
$arr = unpack('N', $t1 . $t0);
$milliseconds_duration = $arr[1];
$milliseconds_duration;
$html = <<<HTML
<input type="hidden" id="duration" value="{$milliseconds_duration}" />
<li>
<div id="container{$i}">Loading the player ...</div>
<script type="text/javascript">
jwplayer("container{$i}").setup({
flashplayer: "js/player.swf",
file: "media/images/{$file}",
height: 608,
width: 848,
"controlbar.idlehide": true,
icons: false,
events: {
onReady: function() { this.play(); }
}
});
</script>
</li>
HTML;
echo $html;
$i++;
break;
case "txt":
$myFile = "media/images/" . $file;
$fh = fopen($myFile, 'r');
$theData = fread($fh, filesize($myFile));
fclose($fh);
echo "<li>" . $theData . "</li>";
break;
}
}
}
closedir($dh);
}
?>
PHP代码只是遍历一个目录,查找文件并回显FLV、图像或文本的适当HTML代码。如果我使用一个固定的超时值,那么其他一切都可以正常工作。
看起来您正在将许多图像和视频输出到单个页面上,但是,它们都具有相同的id - duration.
id必须是唯一的。否则这一行
value = parseInt($('#duration').val());
将获取第一个具有该id的元素并获取其值。也许你应该考虑使用html5 data属性来保存视频长度。
<div id="item1" data-length="3000"></div>
var time = $('currElement').attr('data-length');
或者你需要给隐藏元素一个唯一的id,并以另一种方式获取它们