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Copy pathAudioProcessMonitor.cpp
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147 lines (122 loc) · 4.44 KB
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// AudioProcessMonitor.cpp
//
#include <windows.h>
#include <audiopolicy.h>
#include <endpointvolume.h>
#include <mmdeviceapi.h>
#include <iostream>
#include <psapi.h>
#include <string>
#include <vector>
#include "AudioProcessMonitor.h"
#include <Audioclient.h>
#include <unordered_set>
#pragma comment(lib, "Ole32.lib")
// Function to get process executable path from PID
static std::string GetProcessExecutablePath(DWORD processID) {
HANDLE hProcess = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, processID);
if (!hProcess) return "Unknown";
WCHAR path[MAX_PATH];
DWORD size = MAX_PATH;
if (QueryFullProcessImageNameW(hProcess, 0, path, &size)) {
CloseHandle(hProcess);
// Convert wide string to regular string
int strSize = WideCharToMultiByte(CP_UTF8, 0, path, -1, nullptr, 0, nullptr, nullptr);
std::string result(strSize, 0);
WideCharToMultiByte(CP_UTF8, 0, path, -1, &result[0], strSize, nullptr, nullptr);
if (!result.empty() && result.back() == 0) {
result.pop_back();
}
return result;
}
CloseHandle(hProcess);
return "Unknown";
}
std::vector<std::string> GetAudioInputProcesses() {
std::vector<std::string> results;
std::unordered_set<std::string> seen; // Track unique strings
HRESULT hr = CoInitialize(nullptr);
if (FAILED(hr)) {
return results;
}
IMMDeviceEnumerator* pEnumerator = nullptr;
IMMDevice* pDevice = nullptr;
IAudioSessionManager2* pSessionManager = nullptr;
IAudioSessionEnumerator* pSessionEnum = nullptr;
hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_ALL, __uuidof(IMMDeviceEnumerator), (void**)&pEnumerator);
if (FAILED(hr)) {
return results;
}
// Get default capture (microphone) device
hr = pEnumerator->GetDefaultAudioEndpoint(eCapture, eMultimedia, &pDevice);
if (FAILED(hr)) {
pEnumerator->Release();
return results;
}
bool isActive = false;
IAudioMeterInformation* pMeter = nullptr;
// Get the Audio Meter Interface
hr = pDevice->Activate(__uuidof(IAudioMeterInformation), CLSCTX_ALL, nullptr, (void**)&pMeter);
if (SUCCEEDED(hr)) {
float peakValue = 0.0f;
pMeter->GetPeakValue(&peakValue);
isActive = (peakValue > 0.0f);
pMeter->Release();
}
if (!isActive) {
pDevice->Release();
pEnumerator->Release();
CoUninitialize();
return results;
}
// Get session manager
hr = pDevice->Activate(__uuidof(IAudioSessionManager2), CLSCTX_ALL, nullptr, (void**)&pSessionManager);
if (FAILED(hr)) {
std::cerr << "Failed to activate IAudioSessionManager2. HRESULT: " << std::hex << hr << std::endl;
pDevice->Release();
pEnumerator->Release();
CoUninitialize();
return results;
}
// Get audio session enumerator
hr = pSessionManager->GetSessionEnumerator(&pSessionEnum);
if (FAILED(hr)) {
std::cerr << "Failed to get IAudioSessionEnumerator. HRESULT: " << std::hex << hr << std::endl;
pSessionManager->Release();
pDevice->Release();
pEnumerator->Release();
CoUninitialize();
return results;
}
int sessionCount = 0;
pSessionEnum->GetCount(&sessionCount);
for (int i = 0; i < sessionCount; i++) {
IAudioSessionControl* pSessionControl = nullptr;
hr = pSessionEnum->GetSession(i, &pSessionControl);
if (FAILED(hr)) continue;
IAudioSessionControl2* pSessionControl2 = nullptr;
hr = pSessionControl->QueryInterface(__uuidof(IAudioSessionControl2), (void**)&pSessionControl2);
if (SUCCEEDED(hr)) {
DWORD processID = 0;
pSessionControl2->GetProcessId(&processID);
AudioSessionState state;
pSessionControl2->GetState(&state);
if (processID != 0 && state == AudioSessionStateActive) {
std::string processPath = GetProcessExecutablePath(processID);
// Only insert if not already seen
if (seen.insert(processPath).second) {
results.push_back(processPath);
}
}
pSessionControl2->Release();
}
pSessionControl->Release();
}
// Cleanup
pSessionEnum->Release();
pSessionManager->Release();
pDevice->Release();
pEnumerator->Release();
CoUninitialize();
return results;
}