DirectSound
时间：2014-04-18
来源：互联网
正在写DirectSound...
汪汪不知道...为何每次Call SoundStream::Write时....声音都会断开的(爆音)...
汪汪不知道...为何每次Call SoundStream::Write时....声音都会断开的(爆音)...
复制内容到剪贴板代码:class SoundDevice;
class SoundStream
{
IDirectSoundBuffer8 * soundbuffer;
const WORD channel, bits, validBits;
const DWORD frequency, blockBytes;
uint8_t * buffer;
size_t bufferBytes;
std::thread thread;
std::mutex mutex;
HANDLE flag;
bool decompose;
SoundStream(IDirectSoundBuffer8 * pDsb8, WORD getChannel, WORD getBits, WORD getValidBits, DWORD getFrequency, DWORD getBlockBytes);
public:
friend SoundDevice;
~SoundStream();
DWORD PlayCursor();
DWORD WriteCursor();
DWORD CursorDiff();
DWORD RemainTime();
void Write(const multiarray<double, 2> &data);
void Clear();
void Sync();
private:
DWORD _diff(DWORD first, DWORD second);
};
class SoundDevice
{
IDirectSound8 * device;
public:
SoundDevice(HWND hWnd);
~SoundDevice();
SoundStream * Channel_1(DWORD fq);
SoundStream * Channel_2(DWORD fq);
SoundStream * Channel_4(DWORD fq);
SoundStream * Channel_5_1(DWORD fq);
private:
SoundStream * CreateBuffer(LPWAVEFORMATEX wfx, WORD validBits, DWORD frequency);
};
void SoundStream::Write(const multiarray<double, 2> &data)
{
if (data.size(0) != channel || data.size(1) == 0) return;
std::lock_guard<std::mutex> lock(mutex);
const int64_t max = 1 << ((int64_t)validBits - 1), min = ~max;
const size_t oldBytes = bufferBytes;
uint8_t * _buffer = buffer;
bufferBytes = data.size() * (bits >> 3) + oldBytes;
buffer = new uint8_t[(size_t)(bufferBytes + ((bits >> 3) % 8 ? 8 - ((bits >> 3) % 8) : 0))];
if (_buffer != nullptr)
{
memcpy(buffer, _buffer, (size_t)oldBytes);
delete[] _buffer;
}
for (size_t i = 0; i < data.size(1); ++i)
{
for (size_t j = 0; j < channel; ++j)
{
int64_t *ptr = (int64_t*)(buffer + oldBytes + (i * channel + j) * (bits >> 3));
*ptr = (int64_t)bound(data[(size_t)j][(size_t)i], (double)max, (double)min);
}
}
SetEvent(flag);
}
void SoundStream::Sync()
{
static DWORD CursorRecord = 0;
std::lock_guard<std::mutex> lock(mutex);
DWORD Cursor = WriteCursor(), MaxWriteBytes = blockBytes * 2 - (Cursor % blockBytes);
LPVOID bufferPtr[2];
DWORD _bufferBytes[2];
HResult(soundbuffer->Lock(Cursor, MaxWriteBytes, &bufferPtr[0], &_bufferBytes[0], &bufferPtr[1], &_bufferBytes[1], 0));
DWORD ChoppedBytes[2];
ChoppedBytes[0] = min(_bufferBytes[0], (DWORD)bufferBytes);
ChoppedBytes[1] = min(_bufferBytes[1], (DWORD)bufferBytes - ChoppedBytes[0]);
memcpy(bufferPtr[0], buffer, ChoppedBytes[0]);
memcpy(bufferPtr[1], buffer + _bufferBytes[0], ChoppedBytes[1]);
memset((uint8_t*)bufferPtr[0] + ChoppedBytes[0], 0, _bufferBytes[0] - ChoppedBytes[0]);
memset((uint8_t*)bufferPtr[1] + ChoppedBytes[1], 0, _bufferBytes[1] - ChoppedBytes[1]);
HResult(soundbuffer->Unlock(bufferPtr[0], _bufferBytes[0], bufferPtr[1], _bufferBytes[1]));
uint8_t * _buffer = buffer;
DWORD offset = min(_diff(Cursor, CursorRecord), ChoppedBytes[0] + ChoppedBytes[1]);
CursorRecord = Cursor;
bufferBytes -= offset;
if (bufferBytes)
buffer = new uint8_t[(size_t)bufferBytes];
else
buffer = nullptr;
if (_buffer != nullptr)
{
if (buffer != nullptr)
memcpy(buffer, _buffer + offset, (size_t)bufferBytes);
delete[] _buffer;
}
}
class SoundStream
{
IDirectSoundBuffer8 * soundbuffer;
const WORD channel, bits, validBits;
const DWORD frequency, blockBytes;
uint8_t * buffer;
size_t bufferBytes;
std::thread thread;
std::mutex mutex;
HANDLE flag;
bool decompose;
SoundStream(IDirectSoundBuffer8 * pDsb8, WORD getChannel, WORD getBits, WORD getValidBits, DWORD getFrequency, DWORD getBlockBytes);
public:
friend SoundDevice;
~SoundStream();
DWORD PlayCursor();
DWORD WriteCursor();
DWORD CursorDiff();
DWORD RemainTime();
void Write(const multiarray<double, 2> &data);
void Clear();
void Sync();
private:
DWORD _diff(DWORD first, DWORD second);
};
class SoundDevice
{
IDirectSound8 * device;
public:
SoundDevice(HWND hWnd);
~SoundDevice();
SoundStream * Channel_1(DWORD fq);
SoundStream * Channel_2(DWORD fq);
SoundStream * Channel_4(DWORD fq);
SoundStream * Channel_5_1(DWORD fq);
private:
SoundStream * CreateBuffer(LPWAVEFORMATEX wfx, WORD validBits, DWORD frequency);
};
void SoundStream::Write(const multiarray<double, 2> &data)
{
if (data.size(0) != channel || data.size(1) == 0) return;
std::lock_guard<std::mutex> lock(mutex);
const int64_t max = 1 << ((int64_t)validBits - 1), min = ~max;
const size_t oldBytes = bufferBytes;
uint8_t * _buffer = buffer;
bufferBytes = data.size() * (bits >> 3) + oldBytes;
buffer = new uint8_t[(size_t)(bufferBytes + ((bits >> 3) % 8 ? 8 - ((bits >> 3) % 8) : 0))];
if (_buffer != nullptr)
{
memcpy(buffer, _buffer, (size_t)oldBytes);
delete[] _buffer;
}
for (size_t i = 0; i < data.size(1); ++i)
{
for (size_t j = 0; j < channel; ++j)
{
int64_t *ptr = (int64_t*)(buffer + oldBytes + (i * channel + j) * (bits >> 3));
*ptr = (int64_t)bound(data[(size_t)j][(size_t)i], (double)max, (double)min);
}
}
SetEvent(flag);
}
void SoundStream::Sync()
{
static DWORD CursorRecord = 0;
std::lock_guard<std::mutex> lock(mutex);
DWORD Cursor = WriteCursor(), MaxWriteBytes = blockBytes * 2 - (Cursor % blockBytes);
LPVOID bufferPtr[2];
DWORD _bufferBytes[2];
HResult(soundbuffer->Lock(Cursor, MaxWriteBytes, &bufferPtr[0], &_bufferBytes[0], &bufferPtr[1], &_bufferBytes[1], 0));
DWORD ChoppedBytes[2];
ChoppedBytes[0] = min(_bufferBytes[0], (DWORD)bufferBytes);
ChoppedBytes[1] = min(_bufferBytes[1], (DWORD)bufferBytes - ChoppedBytes[0]);
memcpy(bufferPtr[0], buffer, ChoppedBytes[0]);
memcpy(bufferPtr[1], buffer + _bufferBytes[0], ChoppedBytes[1]);
memset((uint8_t*)bufferPtr[0] + ChoppedBytes[0], 0, _bufferBytes[0] - ChoppedBytes[0]);
memset((uint8_t*)bufferPtr[1] + ChoppedBytes[1], 0, _bufferBytes[1] - ChoppedBytes[1]);
HResult(soundbuffer->Unlock(bufferPtr[0], _bufferBytes[0], bufferPtr[1], _bufferBytes[1]));
uint8_t * _buffer = buffer;
DWORD offset = min(_diff(Cursor, CursorRecord), ChoppedBytes[0] + ChoppedBytes[1]);
CursorRecord = Cursor;
bufferBytes -= offset;
if (bufferBytes)
buffer = new uint8_t[(size_t)bufferBytes];
else
buffer = nullptr;
if (_buffer != nullptr)
{
if (buffer != nullptr)
memcpy(buffer, _buffer + offset, (size_t)bufferBytes);
delete[] _buffer;
}
}
作者: Susan﹏汪汪 发布时间: 2014-04-18
点解重用 DirectSound？DirectSound 已经被 WASAPI 所取代。
我无用过 DirectSound，根据我用过 Allegro 嘅经验，以下系一尐可能性：
1. buffer size 计算有误（过长或过短）
2. 时间性出错
3. 计算 buffer 内容有偏差，如用咗 real numbers，又或整数计算时，出现 overflow 或 underflow
我无用过 DirectSound，根据我用过 Allegro 嘅经验，以下系一尐可能性：
1. buffer size 计算有误（过长或过短）
2. 时间性出错
3. 计算 buffer 内容有偏差，如用咗 real numbers，又或整数计算时，出现 overflow 或 underflow
作者: fitcat07 发布时间: 2014-04-18
引用:原帖由 fitcat07 於 2014-3-20 01:03 PM 发表
点解重用 DirectSound？DirectSound 已经被 WASAPI 所取代。
我无用过 DirectSound，根据我用过 Allegro 嘅经验，以下系一尐可能性：
1. buffer size 计算有误（过长或过短）
2. 时间性出错
3. 计算 buf ...
今晚换wasapi吧 点解重用 DirectSound？DirectSound 已经被 WASAPI 所取代。
我无用过 DirectSound，根据我用过 Allegro 嘅经验，以下系一尐可能性：
1. buffer size 计算有误（过长或过短）
2. 时间性出错
3. 计算 buf ...
作者: Susan﹏汪汪 发布时间: 2014-04-18
汪汪不知道为甚么会完全冇声
复制内容到剪贴板代码:class SoundStream
{
IAudioClient * pAudioClient;
std::thread thread;
std::mutex mtx;
HANDLE hEvent;
BYTE * buffer;
size_t bufferSize;
UINT32 bufferFrameCount, channel, bits, validBits, frequency;
bool distroy;
void _writebuffer();
public:
SoundStream(_AUDCLNT_SHAREMODE ShareMode = AUDCLNT_SHAREMODE_SHARED);
~SoundStream();
UINT32 Channel()
{
return channel;
}
UINT32 Frequency()
{
return frequency;
}
UINT32 Bits()
{
return bits;
}
UINT32 ValidBits()
{
return validBits;
}
void Write(const multiarray<double, 2> &data);
void Sync();
};
// REFERENCE_TIME time units per second and per millisecond
#define REFTIMES_PER_SEC 10000000
#define REFTIMES_PER_MILLISEC 10000
SoundStream::SoundStream(_AUDCLNT_SHAREMODE ShareMode) : buffer(nullptr), bufferSize(0), distroy(false)
{
IMMDeviceEnumerator * pEnumerator = nullptr;
HResult(CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, IID_PPV_ARGS(&pEnumerator)));
IMMDevice * pDevice = nullptr;
HResult(pEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &pDevice));
SafeRelease(&pEnumerator);
HResult(pDevice->Activate(__uuidof(IAudioClient), CLSCTX_ALL, NULL, (void**)&pAudioClient));
SafeRelease(&pDevice);
WAVEFORMATEXTENSIBLE * pwfx = nullptr;
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
if (ShareMode == AUDCLNT_SHAREMODE_SHARED)
{
REFERENCE_TIME hnsRequestedDuration = REFTIMES_PER_SEC;
HResult(pAudioClient->GetMixFormat((WAVEFORMATEX**)&pwfx));
HResult(pAudioClient->Initialize(
AUDCLNT_SHAREMODE_SHARED,
0,
hnsRequestedDuration,
0,
(WAVEFORMATEX*)pwfx,
NULL));
} else
{
REFERENCE_TIME hnsRequestedDuration;
HResult(GetStreamFormat(pAudioClient, &pwfx));
HResult(pAudioClient->GetDevicePeriod(NULL, &hnsRequestedDuration));
HResult(pAudioClient->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
hnsRequestedDuration,
hnsRequestedDuration,
(WAVEFORMATEX*)pwfx,
NULL));
HResult(pAudioClient->SetEventHandle(hEvent));
}
channel = (size_t)pwfx->Format.nChannels;
bits = (size_t)pwfx->Format.wBitsPerSample;
validBits = (size_t)pwfx->Samples.wValidBitsPerSample;
frequency = (size_t)pwfx->Format.nSamplesPerSec;
CoTaskMemFree(pwfx);
HResult(pAudioClient->GetBufferSize(&bufferFrameCount));
HResult(pAudioClient->Start());
if (pAudioClient)
{
thread = std::thread([&]()
{
this->Sync();
});
}
}
SoundStream::~SoundStream()
{
if (pAudioClient)
{
distroy = true;
SetEvent(hEvent);
thread.join();
HResult(pAudioClient->Stop());
SafeRelease(&pAudioClient);
}
if (hEvent != NULL)
CloseHandle(hEvent);
if (bufferSize)
delete[] buffer;
}
void SoundStream::Write(const multiarray<double, 2> &data)
{
std::lock_guard<std::mutex> lck(mtx);
const int64_t min = 1 << ((int64_t)validBits - 1), max = ~min;
size_t blockSize = channel * (bits >> 3), oldBufferSize = bufferSize;
bufferSize += data.size(1) * blockSize;
if (oldBufferSize)
{
BYTE * _buffer = buffer;
buffer = new BYTE[bufferSize + ((bits >> 3) % 8 ? 8 - (bits >> 3) % 8 : 0)];
memcpy(buffer, _buffer, oldBufferSize);
delete[] _buffer;
} else
buffer = new BYTE[bufferSize + ((bits >> 3) % 8 ? 8 - (bits >> 3) % 8 : 0)];
for (size_t i = 0; i < data.size(1); ++i)
{
for (size_t j = 0; j < data.size(0) && j < channel; ++j)
{
int64_t * ptr = (int64_t*)(buffer + oldBufferSize + i * blockSize + j * (bits >> 3));
if (data[j][i] > 1)
*ptr = (int64_t)bound(1, (double)max, (double)min);
else if (data[j][i] < -1)
*ptr = (int64_t)bound(-1, (double)max, (double)min);
else
*ptr = (int64_t)bound(data[j][i], (double)max, (double)min);
}
}
SetEvent(hEvent);
}
void SoundStream::Sync()
{
const REFERENCE_TIME hnsActualDuration = (REFERENCE_TIME)(REFTIMES_PER_SEC * bufferFrameCount / frequency);
while (!distroy)
{
WaitForSingleObject(hEvent, (DWORD)(hnsActualDuration / REFTIMES_PER_MILLISEC / 2));
if (!distroy) _writebuffer();
}
}
void SoundStream::_writebuffer()
{
std::lock_guard<std::mutex> lck(mtx);
UINT32 numFramesPadding;
HResult(pAudioClient->GetCurrentPadding(&numFramesPadding));
size_t blockSize = channel * (bits >> 3),
ChoppedBytes = min(blockSize * (size_t)(bufferFrameCount - numFramesPadding), bufferSize);
if (ChoppedBytes)
{
IAudioRenderClient * pRenderClient = nullptr;
HResult(pAudioClient->GetService(IID_PPV_ARGS(&pRenderClient)));
BYTE * pData = nullptr;
HResult(pRenderClient->GetBuffer((UINT32)(ChoppedBytes / blockSize), &pData));
memcpy(pData, buffer, ChoppedBytes);
HResult(pRenderClient->ReleaseBuffer((UINT32)(ChoppedBytes / blockSize), 0));
SafeRelease(&pRenderClient);
if (bufferSize -= ChoppedBytes)
{
BYTE * _buffer = buffer;
buffer = new BYTE[bufferSize];
memcpy(buffer, _buffer + ChoppedBytes, bufferSize);
delete[] _buffer;
} else
{
if (buffer != nullptr)
{
delete[] buffer;
buffer = nullptr;
}
}
}
}
[ 本帖最后由 Susan﹏汪汪 於 2014-3-21 03:16 AM 编辑 ] {
IAudioClient * pAudioClient;
std::thread thread;
std::mutex mtx;
HANDLE hEvent;
BYTE * buffer;
size_t bufferSize;
UINT32 bufferFrameCount, channel, bits, validBits, frequency;
bool distroy;
void _writebuffer();
public:
SoundStream(_AUDCLNT_SHAREMODE ShareMode = AUDCLNT_SHAREMODE_SHARED);
~SoundStream();
UINT32 Channel()
{
return channel;
}
UINT32 Frequency()
{
return frequency;
}
UINT32 Bits()
{
return bits;
}
UINT32 ValidBits()
{
return validBits;
}
void Write(const multiarray<double, 2> &data);
void Sync();
};
// REFERENCE_TIME time units per second and per millisecond
#define REFTIMES_PER_SEC 10000000
#define REFTIMES_PER_MILLISEC 10000
SoundStream::SoundStream(_AUDCLNT_SHAREMODE ShareMode) : buffer(nullptr), bufferSize(0), distroy(false)
{
IMMDeviceEnumerator * pEnumerator = nullptr;
HResult(CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, IID_PPV_ARGS(&pEnumerator)));
IMMDevice * pDevice = nullptr;
HResult(pEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &pDevice));
SafeRelease(&pEnumerator);
HResult(pDevice->Activate(__uuidof(IAudioClient), CLSCTX_ALL, NULL, (void**)&pAudioClient));
SafeRelease(&pDevice);
WAVEFORMATEXTENSIBLE * pwfx = nullptr;
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
if (ShareMode == AUDCLNT_SHAREMODE_SHARED)
{
REFERENCE_TIME hnsRequestedDuration = REFTIMES_PER_SEC;
HResult(pAudioClient->GetMixFormat((WAVEFORMATEX**)&pwfx));
HResult(pAudioClient->Initialize(
AUDCLNT_SHAREMODE_SHARED,
0,
hnsRequestedDuration,
0,
(WAVEFORMATEX*)pwfx,
NULL));
} else
{
REFERENCE_TIME hnsRequestedDuration;
HResult(GetStreamFormat(pAudioClient, &pwfx));
HResult(pAudioClient->GetDevicePeriod(NULL, &hnsRequestedDuration));
HResult(pAudioClient->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK,
hnsRequestedDuration,
hnsRequestedDuration,
(WAVEFORMATEX*)pwfx,
NULL));
HResult(pAudioClient->SetEventHandle(hEvent));
}
channel = (size_t)pwfx->Format.nChannels;
bits = (size_t)pwfx->Format.wBitsPerSample;
validBits = (size_t)pwfx->Samples.wValidBitsPerSample;
frequency = (size_t)pwfx->Format.nSamplesPerSec;
CoTaskMemFree(pwfx);
HResult(pAudioClient->GetBufferSize(&bufferFrameCount));
HResult(pAudioClient->Start());
if (pAudioClient)
{
thread = std::thread([&]()
{
this->Sync();
});
}
}
SoundStream::~SoundStream()
{
if (pAudioClient)
{
distroy = true;
SetEvent(hEvent);
thread.join();
HResult(pAudioClient->Stop());
SafeRelease(&pAudioClient);
}
if (hEvent != NULL)
CloseHandle(hEvent);
if (bufferSize)
delete[] buffer;
}
void SoundStream::Write(const multiarray<double, 2> &data)
{
std::lock_guard<std::mutex> lck(mtx);
const int64_t min = 1 << ((int64_t)validBits - 1), max = ~min;
size_t blockSize = channel * (bits >> 3), oldBufferSize = bufferSize;
bufferSize += data.size(1) * blockSize;
if (oldBufferSize)
{
BYTE * _buffer = buffer;
buffer = new BYTE[bufferSize + ((bits >> 3) % 8 ? 8 - (bits >> 3) % 8 : 0)];
memcpy(buffer, _buffer, oldBufferSize);
delete[] _buffer;
} else
buffer = new BYTE[bufferSize + ((bits >> 3) % 8 ? 8 - (bits >> 3) % 8 : 0)];
for (size_t i = 0; i < data.size(1); ++i)
{
for (size_t j = 0; j < data.size(0) && j < channel; ++j)
{
int64_t * ptr = (int64_t*)(buffer + oldBufferSize + i * blockSize + j * (bits >> 3));
if (data[j][i] > 1)
*ptr = (int64_t)bound(1, (double)max, (double)min);
else if (data[j][i] < -1)
*ptr = (int64_t)bound(-1, (double)max, (double)min);
else
*ptr = (int64_t)bound(data[j][i], (double)max, (double)min);
}
}
SetEvent(hEvent);
}
void SoundStream::Sync()
{
const REFERENCE_TIME hnsActualDuration = (REFERENCE_TIME)(REFTIMES_PER_SEC * bufferFrameCount / frequency);
while (!distroy)
{
WaitForSingleObject(hEvent, (DWORD)(hnsActualDuration / REFTIMES_PER_MILLISEC / 2));
if (!distroy) _writebuffer();
}
}
void SoundStream::_writebuffer()
{
std::lock_guard<std::mutex> lck(mtx);
UINT32 numFramesPadding;
HResult(pAudioClient->GetCurrentPadding(&numFramesPadding));
size_t blockSize = channel * (bits >> 3),
ChoppedBytes = min(blockSize * (size_t)(bufferFrameCount - numFramesPadding), bufferSize);
if (ChoppedBytes)
{
IAudioRenderClient * pRenderClient = nullptr;
HResult(pAudioClient->GetService(IID_PPV_ARGS(&pRenderClient)));
BYTE * pData = nullptr;
HResult(pRenderClient->GetBuffer((UINT32)(ChoppedBytes / blockSize), &pData));
memcpy(pData, buffer, ChoppedBytes);
HResult(pRenderClient->ReleaseBuffer((UINT32)(ChoppedBytes / blockSize), 0));
SafeRelease(&pRenderClient);
if (bufferSize -= ChoppedBytes)
{
BYTE * _buffer = buffer;
buffer = new BYTE[bufferSize];
memcpy(buffer, _buffer + ChoppedBytes, bufferSize);
delete[] _buffer;
} else
{
if (buffer != nullptr)
{
delete[] buffer;
buffer = nullptr;
}
}
}
}
作者: Susan﹏汪汪 发布时间: 2014-04-18
GetStreamFormat
复制内容到剪贴板代码:HRESULT GetStreamFormat(IAudioClient * pAudioClient, WAVEFORMATEXTENSIBLE ** pwfx)
{
HRESULT hr;
WAVEFORMATEXTENSIBLE wfx;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 6;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 6;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 4;
wfx.Format.wBitsPerSample = 16;
wfx.Samples.wValidBitsPerSample = 16;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 4;
wfx.Format.wBitsPerSample = 16;
wfx.Samples.wValidBitsPerSample = 16;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 1;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 1;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
// Fail
return -1;
}
{
HRESULT hr;
WAVEFORMATEXTENSIBLE wfx;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 6;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 6;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = KSAUDIO_SPEAKER_5POINT1;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 4;
wfx.Format.wBitsPerSample = 16;
wfx.Samples.wValidBitsPerSample = 16;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 4;
wfx.Format.wBitsPerSample = 16;
wfx.Samples.wValidBitsPerSample = 16;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 24;
wfx.Samples.wValidBitsPerSample = 20;
wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 34;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 2;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 1;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 48000;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = 1;
wfx.Format.wBitsPerSample = 16;
wfx.Format.nSamplesPerSec = 44100;
wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.cbSize = 22;
hr = pAudioClient->IsFormatSupported(AUDCLNT_SHAREMODE_EXCLUSIVE, (WAVEFORMATEX*)&wfx, (WAVEFORMATEX**)pwfx);
if (hr == S_OK)
{
*pwfx = (WAVEFORMATEXTENSIBLE*)CoTaskMemAlloc(sizeof(WAVEFORMATEXTENSIBLE));
memcpy(*pwfx, &wfx, sizeof(WAVEFORMATEXTENSIBLE));
return hr;
} else if (hr == S_FALSE) return hr;
// Fail
return -1;
}
作者: Susan﹏汪汪 发布时间: 2014-04-18
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