video-streaming - 如何将视频从浏览器提交/流式传输到服务器？

Question

我可以使用 getUserMedia() 录制视频在浏览器中。但是，我还没有找到将视频从浏览器提交(录制)或流式传输(实时)到服务器的便捷方法。

只有我发现的是将视频渲染到 Canvas ，然后提交或流式传输渲染图像，例如通过数据uri。 (这是无效的。)

有没有更好的办法？ (例如，直接流式传输二进制数据或将它们存储在文件中，然后发送此文件。)

更新:我发现了类似的旧问题:Stream getUserMedia to an Icecast server?

Answer 1

MediaStreamRecorder是一个用于记录 getUserMedia() 流的 WebRTC API。它允许网络应用程序从实时音频/视频 session 创建文件。

 <video autoplay></video>
    
    <script language="javascript" type="text/javascript">
    function onVideoFail(e) {
        console.log('webcam fail!', e);
      };
    
    function hasGetUserMedia() {
      // Note: Opera is unprefixed.
      return !!(navigator.getUserMedia || navigator.webkitGetUserMedia ||
                navigator.mozGetUserMedia || navigator.msGetUserMedia);
    }
    
    if (hasGetUserMedia()) {
      // Good to go!
    } else {
      alert('getUserMedia() is not supported in your browser');
    }
    
    window.URL = window.URL || window.webkitURL;
    navigator.getUserMedia  = navigator.getUserMedia || 
                             navigator.webkitGetUserMedia ||
                              navigator.mozGetUserMedia || 
                               navigator.msGetUserMedia;
    
    var video = document.querySelector('video');
    var streamRecorder;
    var webcamstream;
    
    if (navigator.getUserMedia) {
      navigator.getUserMedia({audio: true, video: true}, function(stream) {
        video.src = window.URL.createObjectURL(stream);
        webcamstream = stream;
    //  streamrecorder = webcamstream.record();
      }, onVideoFail);
    } else {
        alert ('failed');
    }
    
    function startRecording() {
        streamRecorder = webcamstream.record();
        setTimeout(stopRecording, 10000);
    }
    function stopRecording() {
        streamRecorder.getRecordedData(postVideoToServer);
    }
    function postVideoToServer(videoblob) {
   
        var data = {};
        data.video = videoblob;
        data.metadata = 'test metadata';
        data.action = "upload_video";
        jQuery.post("http://www.foundthru.co.uk/uploadvideo.php", data, onUploadSuccess);
    }
    function onUploadSuccess() {
        alert ('video uploaded');
    }
    
    </script>
    
    <div id="webcamcontrols">
        <button class="recordbutton" onclick="startRecording();">RECORD</button>
    </div>

http://www.w3.org/TR/mediastream-recording/
您可以将录制的文件发送到服务器。