[問題] mjpeg 放入 canvas
有一段 webcam 的影片
我想放進 canvas 但不太確定怎麼作
webcam 的格式是 motion jpeg (mjpeg)
用 <img src='xxx.edu/mjpg/video.cgi?'> 其實可以跑的不錯
但放到 canvas 的話
我目前是這樣寫只會秀第一個 frame 就不動了
<html>
<body>
<canvas id='test_canvas' width='640px' height='480px' style='border:1px solid #d3d3d3'>
</canvas>
<script language="JavaScript">
var ctx = document.getElementById('test_canvas').getContext('2d');
var img = new Image();
img.onload = function() {
ctx.drawImage(img, 0, 0);
};
var theDate = new Date();
img.src = "http://xxx.edu/axis-cgi/mjpg/video.cgi?";
</script>
</body>
</html>
當然也沒有辦法把 drawImage 那段放進 while true 回圈就搞定這麼簡單
如果有板友知道解法的
還請指教一下 謝謝！
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