guest271314

const now = performance.now();
const keepServiceWorkerActive = () => 
  dispatchEvent(
    new CustomEvent('keepactive', {
      detail: `Active at ${~~(((performance.now() - now) / 1000) / 60)} minutes.`
    })
  );
const handleKeepServiceWorkerActive = (e) => console.log(e.detail);
addEventListener("keepactive", handleKeepServiceWorkerActive);
let interval = setInterval(keepServiceWorkerActive, 1000 * 60 * 5);

guest271314

Issue 1156408: If the stream obtained via HTMLVideoElement.captureStream() is sent on peer connection, it does not send any actual data

Workarounds

• launch Chrome or Chromium with --disable-gpu flag
• navigate to chrome://settings => Use hardware acceleration when available => toggle the control to off

guest271314

Chromium and Chrome refus to list or capture monitor devices on Linux

• Issue 931749: DOMException: could not start audio source when trying to access audioinput
• Issue 1155954: Add --allow-monitor-inputs flag
• Issue 865799 in chromium: A way for enumerateDevices() to show audiooutput devices with labels when user has no cam or mic

Virtual microphone using GStreamer and PulseAudio includes a section that describes a workaround using PulseAudio to create a virtual microphone where the source is a monitor device

Remap source

guest271314

Chromium does not support capture of monitor devices (system audio output to headphones and speakers; "What-U-Hear") when navigator.mediaDevices.getUserMedia() is called and does not list monitor devices when navigator.mediaDevices.enumerateDevices() is called at Linux, see

• Issue 931749: DOMException: could not start audio source when trying to access audioinput.
• Clarify "audiooutput" does not mean capture of audio output to headphones or speakers

Firefox does support capture of monitor devices at Linux.

Using https://github.com/fippo/paste as a template capture monitor device at Nightly stream the captured monitor device

guest271314

// ts-ebml-min.js
// https://github.com/guest271314/recordMediaFragments/ts-ebml
// minimized version of https://github.com/legokichi/ts-ebml 
/*
 The buffer module from node.js, for the browser.
 @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 @license  MIT
*/
var $jscomp=$jscomp||{};$jscomp.scope={};$jscomp.ASSUME_ES5=!1;$jscomp.ASSUME_NO_NATIVE_MAP=!1;$jscomp.ASSUME_NO_NATIVE_SET=!1;$jscomp.defineProperty=$jscomp.ASSUME_ES5||"function"==typeof Object.defineProperties?Object.defineProperty:function(m,q,k){m!=Array.prototype&&m!=Object.prototype&&(m[q]=k.value)};$jscomp.getGlobal=function(m){return"undefined"!=typeof window&&window===m?m:"undefined"!=typeof global&&null!=global?global:m};$jscomp.global=$jscomp.getGlobal(this);$jscomp.SYMBOL_PREFIX="jscomp_symbol_";
$jscomp.initSymbol=function(){$jscomp.initSymbol=function(){};$jscomp.global.Symbol||($jscomp.global.Symbol=$jscomp.Symbol)};$jscomp.Symbol=function(){var m=0;return function(q){return $jscomp.SYMBOL_PREFIX+(q||"")+m++}}();

guest271314

For every error printed following

$ sudo apt upgrade

in the form of

dpkg: error processing archive /var/cache/apt/archives/libgl1-mesa-dri_19.2.8-0ubuntu0~18.04.3_i386.deb (--unpack): unable to make backup link of './usr/lib/i386-linux-gnu/dri/vmwgfx_dri.so' before installing new version: Input/output error Reinstalling /etc/drirc that was moved away Errors were encountered while processing:

guest271314

> A huge huge huge part of file-system management & capabilities as we use them is being notified about when something changes. Without this, awful awful awful terrible badly performing highly costly & deeply inadequate hacks grow up like weeds, all over the place, as bad terrible coders do an awful job of probing around to figure out "what has changed?". Huge amounts of engineering effort have gone into trying to tackle this issue. Works like node-watch (attempting to fill the painful dx gaps in node's fs.watch being non recursive) & watchman grow like weeds, consuming developer year after developer year of time to make maintain & sustain.

guest271314

@pinoyyid Re https://stackoverflow.com/questions/61550581/can-i-http-poll-or-use-socket-io-from-a-service-worker-on-safari-ios, https://stackoverflow.com/questions/61602441/what-are-the-restrictions-on-what-can-and-cannot-be-done-in-a-a-service-worker `EventSource` could probably be used, see https://stackoverflow.com/q/42475492.

iOS does not support `FetchEvent` where `event.respondwith()` can be used for continuous polling and keeping `ServiceWorker` alive. Alternatively, a `Worker` or `SharedWorker` can be used to achieve the same result.

guest271314

So the Main Question is: How can i encode the AudioBuffer. (and Decode it at the Receiver) Is there an API or Library? Can i get the encoded Buffer from another API in the Browser?

guest271314

Playing audio files in unsupported codecs through <audio> tag https://stackoverflow.com/q/61502237

https://github.com/Kagami/mpv.js/