Firefogg：ogg Theora视频编码插件

Firefogg是Firefox的一个开源扩展，由Jan Gerber编写而成，能直接在浏览器中编码上传的视频。

它能最大限度的降低服务器端的transocding基础设施，节省本地上传的时间。

使用Firefogg的网站：

• videobin.org
• TinyVid
• Pad.ma (soon)
• wikipedia.org (soon)

示例：

if(typeof(Firefogg) == 'undefined') {
  alert('You dont have Firefogg, please go to http://firefogg.org to install it');
  window.open('http://firefogg.org');
}
 
var ogg = new Firefogg();
if(ogg.selectVideo()) {
  var options = JSON.stringify({'maxSize': 320, 'videoBitrate': 500});
  var data = JSON.stringify({'title': 'example video'});
  ogg.upload(options, 'http://example.com/addvideo', data);
  var updateStatus = function() {
    var status = ogg.status();
    var progress = ogg.progress();
 
    //do something with status and progress, i.e. set progressbar width:
    var progressbar = document.getElementById('progressbar');
    progressbar.style.width= parseInt(progress*200) +'px';
    progressbar.innerHTML = parseInt(progress*100) + '% - ' + status;
 
    //loop to get new status if still encoding or uploading
    if(ogg.state == 'encoding' || ogg.state == 'uploading') {
      setTimeout(updateStatus, 500);
    }
    //encoding sucessfull, state can also be 'encoding failed'
    else if (ogg.state == 'done') {
      progressbar.innerHTML = 'Upload done. You can close this window now';
    }
  }
  updateStatus()
}