html5 网页录制视频示例源码

基本信息

源码名称：html5 网页录制视频示例源码

源码大小：5.01KB

文件格式：.html

开发语言：C#

更新时间：2018-04-03

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源码介绍

该示例必须在 https环境下运行，否则会遇到意想不到的问题

<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>MeidaRecorder</title>
<script src="https://lib.sinaapp.com/js/jquery/1.7.2/jquery.min.js"></script>
<style>
*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family:monospace;
}
html,body{
  height: 100%;
}
html{
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -ms-touch-action: pan-y;
  background: #fff;
}
body{
  margin: 0;
  font-family: Arial,微软雅黑,黑体;
  word-break: break-word;
  color: #000;
  position: relative;
}
h1,h2,h3,h4,h5,p{
  margin: 0;
}
pre{
  padding: 24px 28px;
}
a{
  cursor: pointer;
  text-decoration: none;
  color: $main-blue;
  outline: none !important;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}
input, textarea{
  outline: none !important;
  -webkit-appearance: none;
  border: 1px solid #ddd;
  background: #fcfcfc;
  color: #777;
  &:focus{
    border-color: #cfcfcf;
    background: #fff;
    color: #444;
  }
  &[readonly]{
    border-color: #e0e0e0;
    background: red;
    color: #bbb;
  }
}
input{
  word-break: break-all;
}
label{
  vertical-align: middle;
}
ul{
  list-style: none;
  margin: 0;
  padding: 0;
}
hr{
  margin: 0 auto;
  border: none;
}
img{
  border: none;
}

@media (max-width: 700px){
  body:after{
    content:"您的屏幕太小了";
    position: absolute;
    width: 100%;
    text-align: center;
    top: 20%;
    font-size: 40px;
  }
  #app-main{
    display: none;
  }
} 
</style>
</head>
<body>
<label for="audioDevice"> 录音设备: </label>
<select id="audioDevice">
</select>
<br>
<label for="videoDevice"> 录影设备: </label>
<select id="videoDevice">
</select>
<br>
<label for="videoDevice"> 视频宽　: </label>
<input id="videoWidth" value="640" />
<label for="videoDevice"> 视频高　: </label>
<input id="videoHeight" value="480" />
<br>
<label for="videoFrame"> 帧　率　: </label>
<input id="videoFrame" value="12" />
<button onclick="startPreview()" id="startPreview">开始预览</button>
<button onclick="startRecording()" id="startRecording" disabled="disabled">开始录制</button>
<button onclick="stopRecording()" id="stopRecording" disabled="disabled">停止录制</button>
<br>
<video id="video" autoplay></video>
<script type="text/javascript">

navigator.mediaDevices.enumerateDevices().then(function (data) {
  data.forEach(function (item,index) {
    if(item.kind=="audioinput"){
     document.getElementById("audioDevice").innerHTML  =  "<option value='"  item.deviceId  "'>"   (item.label||"设备" index)   " </option> "
    }else if(item.kind=="videoinput"){
      $("#videoDevice").append("<option value='"  item.deviceId  "'>"   (item.label||"设备" index)   " </option> ")
    }
  })
  console.log(data);
  // body...
},function (error) {
  alert("获取失败"   error);
  console.log(error);
})

var getUserMedia = navigator.webkitGetUserMedia;

var g_stream = null,g_recorder = null ;chunks = [];
function startPreview(){
  getUserMedia.call(navigator, {
    // "audio":true,
    // "video":true
    "audio":{"mandatory":{"sourceId":$("#audioDevice").val()}},
    "video":{
            "optional":[ 
              {"minWidth":parseInt($("#videoWidth").val())},{"maxWidth":parseInt($("#videoWidth").val())},
              {"minHeight":parseInt($("#videoHeight").val()) },{"maxHeight":parseInt($("#videoHeight").val())},
              {"frameRate":parseInt($("#videoFrame").val()) }
          ],"mandatory":{
            "sourceId":$("#videoDevice").val()
          }
        }
  }, function(stream){
      g_stream = stream;
      //绑定本地媒体流到video标签用于输出
      document.getElementById("video").src = URL.createObjectURL(stream);
      $("#startPreview").attr("disabled","disabled");
      $("#startRecording").removeAttr("disabled")
      //向PeerConnection中加入需要发送的流

  }, function(error){
      //处理媒体流创建失败错误
  });
}

var saveFile = function(url, filename){
    var save_link = document.createElementNS('http://www.w3.org/1999/xhtml', 'a')
    save_link.href = url;
    save_link.download = filename;
   
    var event = document.createEvent('MouseEvents');
    event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);
    save_link.dispatchEvent(event);
  };

function stopRecording(){
  g_recorder.stop();
  var blob = new Blob(chunks, { 'type' : 'video/webm' });
  var audioURL = URL.createObjectURL(blob);
  window.open(audioURL);
  $("#stopRecording").attr("disabled","disabled");
  $("#startRecording").removeAttr("disabled");
  chunks = [];
}

function startRecording(){
  g_recorder = new MediaRecorder(g_stream,{ mimeType:'video/webm' });
  g_recorder.ondataavailable = function(e) {
    chunks.push(e.data);
  }
  g_recorder.onstop = function(e) {
    var blob = new Blob(chunks, { 'type' : 'video/webm' });
    var audioURL = URL.createObjectURL(blob);
    saveFile(audioURL,"我的自拍.webm");
  }
  g_recorder.start();
      $("#startRecording").attr("disabled","disabled");
      $("#stopRecording").removeAttr("disabled")
}

</script>
</body>
</html>