duanquanhan2333 2010-11-09 10:59
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使用php调整嵌入视频的大小

Hello i am trying to develop a video gallery
However the problem is that i should limit their dimensions. So if the site owner wants to add a video he should paste the embed code..

<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&amp;hl=el_GR"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&amp;hl=el_GR" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

I decided to go with embed because there are many video providers out there....
So which is the best method to resize it before storing it to the database?
IS there a css only solution?
Also i noticed that video.google uses only and inline css for width height! That would overide any css setting...
So regexp is the only solution ?

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  • dongyun8075 2010-11-10 03:41
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    If I had to do a similar task I would convert the html into xml and get the height/width. After that I would resize the height or width (depending on what you need) keeping the aspect. Doing this will not resize the actual video but it'll help you to resize it via HTML. 

    <?php

$string = <<<XML
<?xml version='1.0'?> 
<object width="480" height="385">
       <param name="movie" value="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&amp;hl=el_GR"> </param>                    
       <param name="allowFullScreen" value="true"></param>
       <param name="allowscriptaccess" value="always"></param>
    <embed src="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&amp;hl=el_GR" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true"     width="480" height="385"></embed>                
    </object>
XML;
$xml = simplexml_load_string($string);                                        
echo "Original Width/Height:".$xml->attributes()->width."px/".$xml->attributes()->height."px<br>";

$newwidth = 280;
$newheight = ($xml->attributes()->height / $xml->attributes()->width) * $newwidth;

echo "New Width/Height:".$newwidth."px/".$newheight."px<br>";

echo <<<HTML
    <object width="{$newwidth}" height="${newheight}">
    <param name="movie" value="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&    amp;hl=el_GR"> </param>
        <param name="allowFullScreen" value="true"></param>
        <param name="allowscriptaccess" value="always"></param>
    <embed src="http://www.youtube.com/v/R6uJGqS-KQY?fs=1&amp;hl=el_GR" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true"     width="${newwidth}" height="${newheight}"></embed>
    </object>
HTML;
?>

    I've tested this and you can see it in action at:
    Demo: http://itnews-bg.com/test.php
    Source: http://itnews-bg.com/test.phps

    There may be other better ways but this is what I would do. Hope it helps you :)

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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