extension/media.js


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const internals = {
  mediaStream: null,
};

export async function startMedia() {
  internals.mediaStream =
    internals.mediaStream ||
    (await navigator.mediaDevices.getUserMedia({
      audio: true,
    }));

  return internals.mediaStream;
}

export async function stopMedia() {
  if (!internals.mediaStream) {
    return;
  }

  for (const track of internals.mediaStream.getTracks()) {
    track.stop();
  }

  internals.mediaStream = null;
}