我需要从asp.net中的网络摄像头捕获视频并将文件保存在sql 2005数据库中，
如何从浏览器捕获网络摄像头中的视频并保存到数据库，请在asp.net，C＃中发送有关此内容的任何示例项目或文章或链接。
答案 0 :(得分：3)
您想使用DirectShow。在SourceForge上查看DirectShow.NET。
如果你正在使用Vista，你应该查看未来的平台：Microsoft Media Foundation，它在SourceForge上也有一个.NET library。
祝你好运！答案 1 :(得分：0)
要让这种东西跨浏览器工作，您可能需要查看Flash对象（其中包含用于挂钩用户网络摄像头的工具）和Flash Communication Server的组合，以捕获来自捕获并转换为.flv，你可以保存在某个地方。
答案 2 :(得分：0)
##
是的，我们可以使用bootstrap和html 5在asp.net c＃中捕获视频/图像。
我们也可以将视频保存在服务器文件夹或项目文件夹中。
此本文将在chrome / firebox / Opera浏览器上运行。
要保存此Blob视频，请使用新按钮并在c＃中编写click事件。
它可以正常工作，
使用以下代码并捕获您的视频.......
谢谢。
##
$(document).ready(function () {
let preview = document.getElementById("preview");
let recording = document.getElementById("recording");
let startButton = document.getElementById("startButton");
let stopButton = document.getElementById("stopButton");
let downloadButton = document.getElementById("downloadButton");
let logElement = document.getElementById("log");
let recordingTimeMS = 30000;
function log(msg) {
logElement.innerHTML += msg + "\n";
}
function wait(delayInMS) {
return new Promise(resolve => setTimeout(resolve, delayInMS));
}
function startRecording(stream, lengthInMS) {
let recorder = new MediaRecorder(stream);
let data = [];
recorder.ondataavailable = event => data.push(event.data);
recorder.start();
log(recorder.state + " for " + (lengthInMS / 1000) + " seconds...");
$('#startButton').attr('disabled', true);
$('#stopButton').attr('disabled', false);
$('#downloadButton').attr('disabled', true);
$('#<%=btnsaven.ClientID%>').attr('disabled', true);
let stopped = new Promise((resolve, reject) => {
recorder.onstop = resolve;
recorder.onerror = event => reject(event.name);
});
let recorded = wait(lengthInMS).then(
() => recorder.state == "recording" && recorder.stop()
);
return Promise.all([
stopped,
recorded
])
.then(() => data);
}
function stop(stream) {
stream.getTracks().forEach(track => track.stop());
}
startButton.addEventListener("click", function () {
navigator.mediaDevices.getUserMedia({
video: true,
audio: true
}).then(stream => {
preview.srcObject = stream;
downloadButton.href = stream;
preview.captureStream = preview.captureStream || preview.mozCaptureStream;
return new Promise(resolve => preview.onplaying = resolve);
}).then(() => startRecording(preview.captureStream(), recordingTimeMS))
.then(recordedChunks => {
let recordedBlob = new Blob(recordedChunks, { type: "video/mp4" });
recording.src = URL.createObjectURL(recordedBlob);
downloadButton.href = recording.src;
downloadButton.download = "RecordedVideo.mp4";
$('#startButton').attr('disabled', false);
$('#stopButton').attr('disabled', true);
$('#downloadButton').attr('disabled', false);
$('#<%=btnsaven.ClientID%>').attr('disabled', false);
var reader = new FileReader();
reader.readAsDataURL(recordedBlob);
reader.onloadend = function () {
var base64data = reader.result;
document.getElementById("<%=hfName.ClientID %>").value = base64data;
}
stop(preview.srcObject);
log("Successfully recorded " + recordedBlob.size + " bytes of " +
recordedBlob.type + " media.");
})
.catch(log);
}, false); stopButton.addEventListener("click", function () {
stop(preview.srcObject);
$('#startButton').attr('disabled', false);
$('#stopButton').attr('disabled', true);
$('#downloadButton').attr('disabled', false);
$('#<%=btnsaven.ClientID%>').attr('disabled', false);
}, false);
});
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<div class="panel-body">
<div class="col-md-1">
</div>
<div class="col-md-3">
<h2>Live Preview</h2>
<video id="preview" controls width="260" height="150" autoplay muted style="border: solid 2px green; background-color: black"></video>
<br />
<div id="startButton" class="button btn btn-success btn-sm"> Start </div>
<div id="stopButton" disabled class="button btn btn-warning btn-sm"> Stop </div>
<br />
</div>
<div class="col-md-2">
<br /><br /> <br /><br />
</div>
<div class="col-md-4">
<h2>Recorded Video</h2>
<video id="recording" width="260" height="150" controls style="border: solid 2px green"></video>
<br />
<a id="downloadButton" disabled class="button btn btn-primary btn-sm"> Download </a>
<asp:HiddenField ID="hfName" runat="server" />
</div>
<div class="col-md-12">
<br />
<pre id="log"></pre>
</div>
</div>