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// dllmain.cpp : Defines the entry point for the DLL application.
// References: blog.csdn.net/king110_1/article/details/121170336
#include "pch.h"
#include "Detours/include/detours.h"
#include <stdio.h>
#include <mmsystem.h>
#include <mmdeviceapi.h>
#include <Audioclient.h>
#pragma comment(lib, "winmm.lib")
#if !defined(_WIN64)
# if defined(_DEBUG)
# pragma comment(lib, "Detours/lib.X86Debug/detours.lib")
# else
# pragma comment(lib, "Detours/lib.X86/detours.lib")
# endif
#else
# if defined(_DEBUG)
# pragma comment(lib, "Detours/lib.X64Debug/detours.lib")
# else
# pragma comment(lib, "Detours/lib.X64/detours.lib")
# endif
#endif
#ifdef DEBUG
static FILE* filelog = NULL;
#define OutputLog(...) (filelog ? (fprintf(filelog, __VA_ARGS__), fflush(filelog)) : (printf(__VA_ARGS__), fflush(stdout)))
#else
#define OutputLog(...)
#endif
typedef BOOL(WINAPI* FuncPlaySoundW)(
LPCWSTR pszSound,
HMODULE hmod,
DWORD fdwSound
);
FARPROC pfOrigPlaySoundW = NULL;
#define EXIT_ON_ERROR(hres, step) if (FAILED(hres)) { goto Exit; }
#define REFTIMES_PER_SEC 5000000
int SetFormat(WAVEFORMATEX* wfex)
{
wfex->wFormatTag = 1;
wfex->nChannels = 2;
wfex->cbSize = 0;
wfex->nSamplesPerSec = 44100;
wfex->nAvgBytesPerSec = 44100 * 2 * 2;
wfex->wBitsPerSample = 16;
wfex->nBlockAlign = 4;
return 0;
}
const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
const IID IID_IAudioClient = __uuidof(IAudioClient);
const IID IID_IAudioRenderClient = __uuidof(IAudioRenderClient);
HRESULT AudioClientPlayAudio(INT16* wav_buf, LONG64 dataSize)
{
int sk = 0;
HRESULT hr;
IMMDevice* pDevice;
IMMDeviceEnumerator* pEnumerator = NULL;
IAudioClient* pAudioClient = NULL;
IAudioRenderClient* pRenderClient = NULL;
REFERENCE_TIME hnsRequestedDuration = REFTIMES_PER_SEC;
UINT32 bufferSizeInFrames;
DWORD initStreamFlags = (AUDCLNT_STREAMFLAGS_RATEADJUST | AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM | AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY);
WAVEFORMATEX pwfx;
INT16* pData = NULL;
IAudioClock* audioClock;
UINT64 audioPlaybackFreq;
UINT64 audioPlaybackPos;
UINT64 audioPlaybackPosInSeconds;
UINT64 audioPlaybackPosInSamples;
UINT32 wavPlaybackSample = 0;
UINT32 bufferPadding;
UINT32 soundBufferLatency;
UINT32 numFramesToWrite;
int read = 0, n = 0;
UINT32 numWavSamples = (UINT32)(dataSize / (2 * sizeof(UINT16)));
DWORD num = 0;
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
EXIT_ON_ERROR(hr, "CoInitializeEx()");
hr = CoCreateInstance(CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, IID_IMMDeviceEnumerator, (void**)&pEnumerator);
EXIT_ON_ERROR(hr, "CoCreateInstance()");
hr = pEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &pDevice);
EXIT_ON_ERROR(hr, "pEnumerator->GetDefaultAudioEndpoint()");
hr = pDevice->Activate(IID_IAudioClient, CLSCTX_ALL, NULL, (void**)&pAudioClient);
EXIT_ON_ERROR(hr, "pDevice->Activate()");
hr = SetFormat(&pwfx);
EXIT_ON_ERROR(hr, "SetFormat()");
hr = pAudioClient->Initialize(AUDCLNT_SHAREMODE_SHARED, initStreamFlags, hnsRequestedDuration * 40, 0, &pwfx, NULL);
EXIT_ON_ERROR(hr, "pAudioClient->Initialize()");
hr = pAudioClient->GetService(__uuidof(IAudioRenderClient), (LPVOID*)(&pRenderClient));
EXIT_ON_ERROR(hr, "pAudioClient->GetService()");
hr = pAudioClient->GetBufferSize(&bufferSizeInFrames);
EXIT_ON_ERROR(hr, "pAudioClient->GetBufferSize()");
hr = pAudioClient->Start();
EXIT_ON_ERROR(hr, "pAudioClient->Start()");
while (read < dataSize / 2)
{
hr = pAudioClient->GetCurrentPadding(&bufferPadding);
EXIT_ON_ERROR(hr, "pAudioClient->GetCurrentPadding()");
soundBufferLatency = bufferSizeInFrames / 50;
numFramesToWrite = soundBufferLatency - bufferPadding;
hr = pRenderClient->GetBuffer(numFramesToWrite, (BYTE**)(&pData));
EXIT_ON_ERROR(hr, "pRenderClient->GetBuffer()");
for (UINT32 i = 0; i < numFramesToWrite; i++)
{
pData[2 * i] = wav_buf[sk++];
pData[2 * i + 1] = wav_buf[sk++];
read = read + 2;
}
hr = pRenderClient->ReleaseBuffer(numFramesToWrite, 0);
EXIT_ON_ERROR(hr, "pRenderClient->ReleaseBuffer()");
hr = pAudioClient->GetService(__uuidof(IAudioClock), (LPVOID*)(&audioClock));
EXIT_ON_ERROR(hr, "pAudioClient->GetService()");
audioClock->GetFrequency(&audioPlaybackFreq);
audioClock->GetPosition(&audioPlaybackPos, 0);
audioClock->Release();
audioPlaybackPosInSeconds = audioPlaybackPos / audioPlaybackFreq;
audioPlaybackPosInSamples = audioPlaybackPosInSeconds * 44100;
}
UINT32 padding;
while (1)
{
pAudioClient->GetCurrentPadding(&padding);
if (padding == 0) break;
Sleep(100);
}
Exit:
pAudioClient->Stop();
pAudioClient->Release();
pRenderClient->Release();
CoUninitialize();
return hr;
}
// Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
unsigned char AudioData[349532] = {
... // 这里面是完成音效的数据，需要按照要求的格式从wav音频里提取出数据
};
HANDLE g_hPlayEvent;
DWORD WINAPI AudioThread(LPVOID lpParameter)
{
while (1)
{
WaitForSingleObject(g_hPlayEvent, INFINITE);
AudioClientPlayAudio((INT16*)AudioData, sizeof(AudioData));
ResetEvent(g_hPlayEvent);
}
}
BOOL
WINAPI
MyPlaySoundW(
LPCWSTR pszSound,
HMODULE hmod,
DWORD fdwSound
)
{
OutputLog("PlaySoundW(%ls, %d)\n", pszSound, fdwSound);
if (pszSound && !wcscmp(pszSound, L"complete.wav") && !hmod && fdwSound == 131075)
{
OutputLog("Intercepted, calling AudioClient to play the audio.\n");
SetEvent(g_hPlayEvent);
return TRUE;
}
return ((FuncPlaySoundW)pfOrigPlaySoundW)(pszSound, hmod, fdwSound);
}
void StartHook()
{
DetourRestoreAfterWith();
DetourTransactionBegin();
DetourUpdateThread(GetCurrentThread());
HMODULE hWinmm = LoadLibraryW(L"winmm.dll");
if (hWinmm)
pfOrigPlaySoundW = GetProcAddress(hWinmm, "PlaySoundW");
if (pfOrigPlaySoundW)
DetourAttach(&(PVOID&)pfOrigPlaySoundW, MyPlaySoundW);
else
OutputLog("Could not find PlaySoundW in winmm.dll\n");
LONG error = DetourTransactionCommit();
if (error == NO_ERROR)
{
OutputLog("Hooked functions\n");
}
else
{
OutputLog("Error hooking functions: %ld\n", error);
}
}
BOOL APIENTRY DllMain( HMODULE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
if (DetourIsHelperProcess())
{
return TRUE;
}
switch (ul_reason_for_call)
{
case DLL_PROCESS_ATTACH:
{
WCHAR lpExeFilePath[MAX_PATH];
GetModuleFileNameW(GetModuleHandle(NULL), lpExeFilePath, MAX_PATH);
WCHAR* lpExeFileName = wcsrchr(lpExeFilePath, L'\\');
if (lpExeFileName == NULL)
lpExeFileName = lpExeFilePath;
else
lpExeFileName++;
if (!_wcsicmp(lpExeFileName, L"chrome.exe"))
{
#ifdef DEBUG
char logfile[MAX_PATH];
sprintf_s(logfile, MAX_PATH, "X:\\ChromeFix_Logs\\Chromefix-%d.log", GetCurrentProcessId());
if (fopen_s(&filelog, logfile, "a+"))
filelog = NULL;
OutputLog("Attached to process %d, command line: %ls\n", GetCurrentProcessId(), GetCommandLineW());
#endif
g_hPlayEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
CreateThread(NULL, 0, AudioThread, NULL, 0, NULL);
StartHook();
}
break;
}
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}

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