h5 HTML5 浏览器 录制视频

HTML 部分:

<div class="layui-body">
    <div style="margin-left: 10%" id="container">
        <video id="gum" autoplay muted></video>
    <div>
    <button id="record" disabled>开始录制</button>
    <button id="upload" disabled>上传</button>
</div>

JS 部分:

var mediaSource = new MediaSource();
mediaSource.addEventListener('sourceopen', handleSourceOpen, false);
var mediaRecorder;
var recordedBlobs;
var sourceBuffer;

var gumVideo = document.querySelector('video#gum');

var recordButton = document.querySelector('button#record');
var uploadButton = document.querySelector('button#upload');
recordButton.onclick = toggleRecording;
uploadButton.onclick = upload;

// window.isSecureContext could be used for Chrome
var isSecureOrigin = location.protocol === 'https:' || location.hostname === 'localhost';
if (!isSecureOrigin) {
    alert('getUserMedia() must be run from a secure origin: HTTPS or localhost.' + '\n\nChanging protocol to HTTPS');
    location.protocol = 'HTTPS';
}

var constraints = {
    audio: true,
    video: {
      width:480,//视频宽度
      height:480,//视频高度
      frameRate:60,//每秒60帧
  }
};

function handleSuccess(stream) {
    recordButton.disabled = false;
    console.log('getUserMedia() got stream: ', stream);
    window.stream = stream;
    gumVideo.srcObject = stream;
}

function handleError(error) {
    console.log('navigator.getUserMedia error: ', error);
}

navigator.mediaDevices.getUserMedia(constraints).
    then(handleSuccess).catch(handleError);

function handleSourceOpen(event) {
    console.log('MediaSource opened');
    sourceBuffer = mediaSource.addSourceBuffer('video/webm; codecs="vp8"');
    console.log('Source buffer: ', sourceBuffer);
}


function handleDataAvailable(event) {
    if (event.data && event.data.size > 0) {
        recordedBlobs.push(event.data);
    }
}

function handleStop(event) {
    console.log('Recorder stopped: ', event);
}

function toggleRecording() {
    if (recordButton.textContent === '开始录制') {
        startRecording();
    } else {
        stopRecording();
        recordButton.textContent = '开始录制';
        uploadButton.disabled = false;
    }
}

function startRecording() {
	recordedBlobs = [];
	var options = {mimeType: 'video/webm;codecs=h264'};
	try {
		mediaRecorder = new MediaRecorder(window.stream, options);
	} catch (e) {
	    console.error('Exception while creating MediaRecorder: ' + e);
	    alert('Exception while creating MediaRecorder: '
	    + e + '. mimeType: ' + options.mimeType);
	    return;
	}
	console.log('Created MediaRecorder', mediaRecorder, 'with options', options);
	recordButton.textContent = '结束录制';
	uploadButton.disabled = true;
	mediaRecorder.onstop = handleStop;
	mediaRecorder.ondataavailable = handleDataAvailable;
	mediaRecorder.start(10); // collect 10ms of data
	console.log('MediaRecorder started', mediaRecorder);
}

function stopRecording() {
    mediaRecorder.stop();
    console.log('Recorded Blobs: ', recordedBlobs);
}

function upload(){
    //保存在本地,通过post请求
    //还可以用append方法添加一些附加信息参数为(name,value),如下面的代码:
    var blob = new Blob(recordedBlobs, {type: 'video/mp4'});
    var formData = new FormData();
    formData.append('video', blob);
    console.log(formData);

    $.ajax({
        type: "POST",
        url: "/user/vertify",
        data: formData,
        processData:false,   //  告诉jquery不要处理发送的数据
        contentType:false,    // 告诉jquery不要设置content-Type请求头
        success:function(res){
            console.log(res);
        }
    });
}

PHP控制器部分

public function vertify()
{
	//创建文件保存目录
    $save_dir = '\upload\Video\' . date('Ym').'\'.date('md');
    if (!file_exists('.'.$save_dir)) {
        mkdir('.'.$save_dir,0777,true);
    }
    $newfile = time().mt_rand().'.mp4';
    $destinationPath = public_path() . $save_dir;
    if($_FILES["video"]["error"] !== 0){
        return ['ret' => 1, 'msg' => $_FILES["file"]["error"]];
    }
    $video_path = $destinationPath.'\\'.$newfile;
    //保存视频
    $res = move_uploaded_file($_FILES['video']['tmp_name'],$video_path);
    if(!$res){
        return ['ret' => 1, 'msg' => '视频上传出错'];
    }
}

原文链接:https://blog.youkuaiyun.com/xiaopeng_han123/article/details/78602022?locationNum=1&fps=1

### H5 WebRTC 实现相机录制视频并进行回显 在现代浏览器中,可以通过 HTML5 和 WebRTC 技术来访问设备的摄像头,并实现实时视频捕获和回显功能。以下是具体的技术细节以及代码示例。 #### 访问摄像头权限 为了获取用户的摄像头数据,需要调用 `navigator.mediaDevices.getUserMedia` 方法请求媒体输入设备的访问权。此方法返回一个 Promise 对象,成功时会提供 MediaStream 数据流[^1]。 ```javascript async function startCamera() { try { const stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: false }); handleSuccess(stream); } catch (error) { console.error('Error accessing the camera:', error); } } ``` #### 将视频流绑定到 `<video>` 元素 一旦获得了 MediaStream 流对象,可以将其设置为 `<video>` 元素的源属性 (`srcObject`) 来实时展示摄像头捕捉的内容。 ```javascript function handleSuccess(stream) { const videoElement = document.querySelector('#cameraFeed'); videoElement.srcObject = stream; videoElement.play(); } ``` #### 录制视频 要实现视频录制功能,可利用 `MediaRecorder` API 处理来自摄像头的数据流。创建一个新的 `MediaRecorder` 实例并将它连接至已有的 MediaStream 上下文中。 ```javascript let mediaRecorder; let recordedChunks = []; function startRecording(stream) { mediaRecorder = new MediaRecorder(stream); mediaRecorder.ondataavailable = event => { if (event.data.size > 0) { recordedChunks.push(event.data); } }; mediaRecorder.start(); } function stopRecording() { mediaRecorder.stop(); mediaRecorder.onstop = () => { const blob = new Blob(recordedChunks, { type: 'video/webm' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.style.display = 'none'; a.href = url; a.download = 'recorded-video.webm'; document.body.appendChild(a); a.click(); window.URL.revokeObjectURL(url); recordedChunks = []; }; } ``` #### 防止非法下载行为 针对某些特定环境下的安全需求(如防止用户通过第三方工具截取视频),需注意国内部分浏览器可能存在的特殊行为模式,例如 360 浏览器可能会自动添加“小窗口播放”按钮。对此类情况可通过 CSS 或 JavaScript 进行干预处理[^2]。 ```css /* 使用样式隐藏潜在控件 */ video::-internal-media-controls-download-button { display: none !important; } ``` 以上即为基于 H5 的 WebRTC 相机录制与回显解决方案概述及其实践案例说明。
评论 4
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值