Hello I have already read and attempted the thread: Saving desktopCapturer to video file in Electron(您好，我已经阅读并尝试了以下线程：将DesktopCapturer保存到Electron中的视频文件)
This is what I have so far:(这是我到目前为止的内容：)
const { desktopCapturer } = require('electron')
var fs = require('fs');
function startRecording(){
desktopCapturer.getSources({ types: ['window', 'screen'] }).then(async sources => {
for (const source of sources) {
if (source.name === 'Entire Screen') {
try {
const stream = await navigator.mediaDevices.getUserMedia({
audio: false,
video: {
mandatory: {
chromeMediaSource: 'desktop',
chromeMediaSourceId: source.id,
minWidth: 1280,
maxWidth: 1280,
minHeight: 720,
maxHeight: 720
}
}
})
handleStream(stream)
} catch (e) {
handleError(e)
}
return
}
}})
}
function handleStream(stream) {
recorder = new MediaRecorder(stream);
blobs = [];
recorder.ondataavailable = function(event) {
blobs.push(event.data);
};
recorder.start();
}
function stopRecording() {
recorder.stop();
console.log(blobs);
toArrayBuffer(new Blob(blobs, {type: 'video/webm'}), function(ab) {
var buffer = toBuffer(ab);
var file = `./videos/example.webm`;
fs.writeFile(file, buffer, function(err) {
if (err) {
console.error('Failed to save video ' + err);
} else {
console.log('Saved video: ' + file);
}
});
});
}
function handleUserMediaError(e) {
console.error('handleUserMediaError', e);
}
function toArrayBuffer(blob, cb) {
let fileReader = new FileReader();
fileReader.onload = function() {
let arrayBuffer = this.result;
cb(arrayBuffer);
};
fileReader.readAsArrayBuffer(blob);
}
function toBuffer(ab) {
let buffer = Buffer.alloc(ab.byteLength);
let arr = new Uint8Array(ab);
for (let i = 0; i < arr.byteLength; i++) {
buffer[i] = arr[i];
}
return buffer;
}
// Record for 3.5 seconds and save to disk
startRecording();
setTimeout(function() { stopRecording() }, 3500)
I just want to save the recorded video to a file.(我只想将录制的视频保存到文件中。) The file ends up being empty when it saves.(保存后文件最终为空。) I have been stuck at this awhile and would appreciate any advice.(我一直被困在这一段时间，并希望得到任何建议。) Thank you(谢谢)
ask by Jonah Kornberg translate from so
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
