代码如下:

<script type=\"text/javascript\" src=\"http://lib.sinaapp.com/js/jquery/1.6/jquery.js\"></script>

代码如下:

<video id=\"video\" controls=\"controls\">
<source src=\"1.mp4\" />
</video>

代码如下:

<script type=\"text/javascript\">
$().ready(function(){
var video, output;
var scale = 0.25;
var initialize = function() {
output = $(\"#output\");
video = $(\"#video\").get(0);
$(\"#capture\").click(captureImage);
};
var captureImage = function() {
var canvas = document.createElement(\"canvas\");
canvas.width = video.videoWidth * scale;
canvas.height = video.videoHeight * scale;
canvas.getContext(\'2d\')
.drawImage(video, 0, 0, canvas.width, canvas.height);
var img = document.createElement(\"img\");
img.src = canvas.toDataURL();
output.prepend(img);
};
$(initialize);
});
</script>