问题描述
我正在使用RecordRTC进行屏幕录制，
这是我的代码，
<html>
<head>
<style>
html,body {
margin: 0!important;
padding: 0!important;
text-align: center;
font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Fira Sans","Droid Sans","Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
font-size: 1em;
}
video {
width: 30%;
border-radius: 5px;
border: 1px solid black;
}
</style>
<title>Screen Recording</title>
</head>
<body>
<h1>Screen Recording</h1>
<br>
<button id="btn-start-recording">Start Recording</button>
<button id="btn-stop-recording" disabled>Stop Recording</button>
<hr>
<video controls autoplay playsinline></video>
</body>
<script src="RecordRTC.js"></script>
<script>
var video = document.querySelector('video');
if(!navigator.getdisplayMedia && !navigator.mediaDevices.getdisplayMedia) {
var error = 'Your browser does NOT support the getdisplayMedia API.';
document.querySelector('h1').innerHTML = error;
document.querySelector('video').style.display = 'none';
document.getElementById('btn-start-recording').style.display = 'none';
document.getElementById('btn-stop-recording').style.display = 'none';
throw new Error(error);
}
//alert("this is test");
function invokeGetdisplayMedia(success,error) {
var displaymediastreamconstraints = {
video: {
displaySurface: 'monitor',// monitor,window,application,browser
logicalSurface: true,cursor: 'always' // never,always,motion
}
};
// above constraints are NOT supported YET
// that's why overriding them
displaymediastreamconstraints = {
video: true
};
if(navigator.mediaDevices.getdisplayMedia) {
navigator.mediaDevices.getdisplayMedia(displaymediastreamconstraints).then(success).catch(error);
}
else {
navigator.getdisplayMedia(displaymediastreamconstraints).then(success).catch(error);
}
}
function captureScreen(callback) {
invokeGetdisplayMedia(function(screen) {
addStreamStopListener(screen,function() {
document.getElementById('btn-stop-recording').click();
});
callback(screen);
},function(error) {
console.error(error);
alert('Unable to capture your screen. Please check console logs.\n' + error);
});
}
function stopRecordingCallback() {
video.src = video.srcObject = null;
video.src = URL.createObjectURL(recorder.getBlob());
alert(video.src);
recorder.screen.stop();
recorder.destroy();
recorder = null;
document.getElementById('btn-start-recording').disabled = false;
}
var recorder; // globally accessible
document.getElementById('btn-start-recording').onclick = function() {
this.disabled = true;
captureScreen(function(screen) {
video.srcObject = screen;
recorder = RecordRTC(screen,{
type: 'video'
});
recorder.startRecording();
// release screen on stopRecording
recorder.screen = screen;
document.getElementById('btn-stop-recording').disabled = false;
});
};
document.getElementById('btn-stop-recording').onclick = function() {
this.disabled = true;
recorder.stopRecording(stopRecordingCallback);
};
function addStreamStopListener(stream,callback) {
stream.addEventListener('ended',function() {
callback();
callback = function() {};
},false);
stream.addEventListener('inactive',false);
stream.getTracks().forEach(function(track) {
track.addEventListener('ended',function() {
callback();
callback = function() {};
},false);
track.addEventListener('inactive',false);
});
}
</script>
<br><br>
<footer style="margin-top: 20px; text-align: left;">
<!-- <p style="padding: 5px 10px;"><b>Hints:</b> Are you using Chrome version 71? Please enable "chrome://flags/#enable-experimental-web-platform-features"</p>
<p style="padding: 5px 10px;"><b>browser support:</b> Firefox,Edge and Chrome >= 71</p>
<div><small id="send-message"></small></div> -->
</footer>
<!--<script src="https://www.webrtc-experiment.com/common.js"></script> -->
这很好，这意味着当我单击start recording之后我可以进行录制，如果单击stop recording，那么我可以在{{1}处看到该视频（无论录制了什么） }如果我要下载，那么<video controls autoplay playsinline></video>中有一个下载按钮，那么我可以下载到这里，它可以正常工作（这是我在服务器上所做的事情。）
但是在这里，当我单击录制视频的<video></video>按钮时，我需要以MP4格式自动下载到服务器文件夹（recordedFiles）中。
我尝试过的是，有一个名为stop recording的函数，其中该函数stopRecordingCallback()生成了一个video.src像video blob url一样。我需要将该网址转换为base64，然后再次另存为（.webm）MP4
这是我在JS中尝试过的代码：
blob:https://server_ip/f4d27a7d-48f1-4499-9613-7953ef01edfe这根本不起作用。
如何通过javascript或PHP使用该blob URL将记录的文件保存到服务器文件夹中。
请对此提供帮助。
谢谢
解决方法
在 recordRTC 中使用 mimeType: 'video/webm; codecs=vp9' 它将适用于 Google chrome、Mozilla Firefox 和 Microsoft Edge。
const recorder = RecordRTC(stream,{
type: 'video',// audio/webm
// video/webm;codecs=vp9
// video/webm;codecs=vp8
// video/webm;codecs=h264
// video/x-matroska;codecs=avc1
// video/mpeg -- NOT supported by any browser,yet
// video/mp4 -- NOT supported by any browser,yet
// audio/wav
// audio/ogg -- ONLY Firefox
// demo: simple-demos/isTypeSupported.html
mimeType: 'video/webm;codecs=vp9'
})
我建议向 PHP 脚本发出 XML POST 请求并使用视频“文件对象”而不是 blob 元素。
let request = new XMLHttpRequest();
let url = "your form treatment file path here" ;
var video = your video file object; // i don't know output gived by recorder but if you can have blob you sure can access the raw js file object
var formData = new FormData();
formData.append("upload_video",file);
request.open("POST",url,true);
request.onload = function () {
saveResponse = request.responseText;
var result = document.getElementById('result'); // add an element with an id to display your PHP script return (to debug or display something once the video is uploaded)
result.innerHTML = saveResponse;
}
request.send(data);
然后您可以使用 PHP $_FILES['upload_video'] 访问您的文件并使用它做您想做的事情。