An audio capture with process id of PID is already started

[nikilchrist12]

Hi, I want to integrate this package into my Electron app. I have already started a window with a specific PID, mentoned it on startAudioCapture but I got an error saying, 'An audio capture with the process ID PID is already started.' What should I do now?

[BungaaFACE]

I got same issue. Problem is that getActiveWindowProcessIds() sometimes doubling same processId. I think root cause is that two windows with different titles has same PID, like my example below.

53220 - main.js - bungaacord - Python - Visual Studio Code
72332 - dist - File Explorer
50196 - BungaaCord - Voice chat - Vivaldi
50196 - Admin panel - Vivaldi
58704 - Settings
23040 - Settings
93260 - Windows Input Experience
8180 - NVIDIA GeForce Overlay
81740 - v2rayN - V7.16.6 - X64 - Not run as Admin
72332 - Program Manager

As you can see i got 2 windows of Vivaldi browser, but they got same PID 50196.
For the FileExplorer i think it's one hidden window for file explorer itself, and one for opened folder tab. they got same processId 72332.

I dont know if its need to be fixed or not, just wanted to let maintainer know. For me fix is easy - const capturePid = startAudioCapture(...) push to list of audioCapturePids and when starting capture check if pid already in list

Something like that:

let audioCapturePids = [];

for (const pid of target_pids) {
  try {
      if (!audioCapturePids.includes(pid)) {
          const capturePid = startAudioCapture(pid, {
              onData: (chunk) => {
                  if (event.sender) {
                      event.sender.send('audio-data', {
                          pid: pid,
                          data: Array.from(chunk), 
                          timestamp: Date.now()
                      });
                  }
              },
              onError: (error) => {
                  console.error(`Audio Capture error for PID ${pid}:`, error);
                  if (event.sender) {
                      event.sender.send('audio-error', {
                          pid: pid,
                          error: error.message
                      });
                  }
              }
          });
          if (capturePid) {
              audioCapturePids.push(capturePid)
          }
          console.log(`Audio capture started for PID: ${pid}`)
      }
  } catch (error) {
      console.error(`Error starting capture for PID ${pid}:`, error);
  }
};