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audio_device_core_win.cc
4403 lines (3650 loc) · 139 KB
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audio_device_core_win.cc
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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#pragma warning(disable : 4995) // name was marked as #pragma deprecated
#if (_MSC_VER >= 1310) && (_MSC_VER < 1400)
// Reports the major and minor versions of the compiler.
// For example, 1310 for Microsoft Visual C++ .NET 2003. 1310 represents version
// 13 and a 1.0 point release. The Visual C++ 2005 compiler version is 1400.
// Type cl /? at the command line to see the major and minor versions of your
// compiler along with the build number.
#pragma message(">> INFO: Windows Core Audio is not supported in VS 2003")
#endif
#include "modules/audio_device/audio_device_config.h"
#ifdef WEBRTC_WINDOWS_CORE_AUDIO_BUILD
#include "modules/audio_device/win/audio_device_core_win.h"
#include <assert.h>
#include <string.h>
#include <comdef.h>
#include <dmo.h>
#include <functiondiscoverykeys_devpkey.h>
#include <mmsystem.h>
#include <strsafe.h>
#include <uuids.h>
#include <windows.h>
#include <iomanip>
#include "rtc_base/logging.h"
#include "rtc_base/platform_thread.h"
#include "rtc_base/string_utils.h"
#include "rtc_base/thread_annotations.h"
#include "system_wrappers/include/sleep.h"
// Macro that calls a COM method returning HRESULT value.
#define EXIT_ON_ERROR(hres) \
do { \
if (FAILED(hres)) \
goto Exit; \
} while (0)
// Macro that continues to a COM error.
#define CONTINUE_ON_ERROR(hres) \
do { \
if (FAILED(hres)) \
goto Next; \
} while (0)
// Macro that releases a COM object if not NULL.
#define SAFE_RELEASE(p) \
do { \
if ((p)) { \
(p)->Release(); \
(p) = NULL; \
} \
} while (0)
#define ROUND(x) ((x) >= 0 ? (int)((x) + 0.5) : (int)((x)-0.5))
// REFERENCE_TIME time units per millisecond
#define REFTIMES_PER_MILLISEC 10000
typedef struct tagTHREADNAME_INFO {
DWORD dwType; // must be 0x1000
LPCSTR szName; // pointer to name (in user addr space)
DWORD dwThreadID; // thread ID (-1=caller thread)
DWORD dwFlags; // reserved for future use, must be zero
} THREADNAME_INFO;
namespace webrtc {
namespace {
enum { COM_THREADING_MODEL = COINIT_MULTITHREADED };
enum { kAecCaptureStreamIndex = 0, kAecRenderStreamIndex = 1 };
// An implementation of IMediaBuffer, as required for
// IMediaObject::ProcessOutput(). After consuming data provided by
// ProcessOutput(), call SetLength() to update the buffer availability.
//
// Example implementation:
// http://msdn.microsoft.com/en-us/library/dd376684(v=vs.85).aspx
class MediaBufferImpl final : public IMediaBuffer {
public:
explicit MediaBufferImpl(DWORD maxLength)
: _data(new BYTE[maxLength]),
_length(0),
_maxLength(maxLength),
_refCount(0) {}
// IMediaBuffer methods.
STDMETHOD(GetBufferAndLength(BYTE** ppBuffer, DWORD* pcbLength)) {
if (!ppBuffer || !pcbLength) {
return E_POINTER;
}
*ppBuffer = _data;
*pcbLength = _length;
return S_OK;
}
STDMETHOD(GetMaxLength(DWORD* pcbMaxLength)) {
if (!pcbMaxLength) {
return E_POINTER;
}
*pcbMaxLength = _maxLength;
return S_OK;
}
STDMETHOD(SetLength(DWORD cbLength)) {
if (cbLength > _maxLength) {
return E_INVALIDARG;
}
_length = cbLength;
return S_OK;
}
// IUnknown methods.
STDMETHOD_(ULONG, AddRef()) { return InterlockedIncrement(&_refCount); }
STDMETHOD(QueryInterface(REFIID riid, void** ppv)) {
if (!ppv) {
return E_POINTER;
} else if (riid != IID_IMediaBuffer && riid != IID_IUnknown) {
return E_NOINTERFACE;
}
*ppv = static_cast<IMediaBuffer*>(this);
AddRef();
return S_OK;
}
STDMETHOD_(ULONG, Release()) {
LONG refCount = InterlockedDecrement(&_refCount);
if (refCount == 0) {
delete this;
}
return refCount;
}
private:
~MediaBufferImpl() { delete[] _data; }
BYTE* _data;
DWORD _length;
const DWORD _maxLength;
LONG _refCount;
};
} // namespace
// ============================================================================
// Static Methods
// ============================================================================
// ----------------------------------------------------------------------------
// CoreAudioIsSupported
// ----------------------------------------------------------------------------
bool AudioDeviceWindowsCore::CoreAudioIsSupported() {
RTC_LOG(LS_VERBOSE) << __FUNCTION__;
bool MMDeviceIsAvailable(false);
bool coreAudioIsSupported(false);
HRESULT hr(S_OK);
wchar_t buf[MAXERRORLENGTH];
wchar_t errorText[MAXERRORLENGTH];
// 1) Check if Windows version is Vista SP1 or later.
//
// CoreAudio is only available on Vista SP1 and later.
//
OSVERSIONINFOEX osvi;
DWORDLONG dwlConditionMask = 0;
int op = VER_LESS_EQUAL;
// Initialize the OSVERSIONINFOEX structure.
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
osvi.dwMajorVersion = 6;
osvi.dwMinorVersion = 0;
osvi.wServicePackMajor = 0;
osvi.wServicePackMinor = 0;
osvi.wProductType = VER_NT_WORKSTATION;
// Initialize the condition mask.
VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, op);
VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, op);
VER_SET_CONDITION(dwlConditionMask, VER_SERVICEPACKMAJOR, op);
VER_SET_CONDITION(dwlConditionMask, VER_SERVICEPACKMINOR, op);
VER_SET_CONDITION(dwlConditionMask, VER_PRODUCT_TYPE, VER_EQUAL);
DWORD dwTypeMask = VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR |
VER_PRODUCT_TYPE;
// Perform the test.
BOOL isVistaRTMorXP = VerifyVersionInfo(&osvi, dwTypeMask, dwlConditionMask);
if (isVistaRTMorXP != 0) {
RTC_LOG(LS_VERBOSE)
<< "*** Windows Core Audio is only supported on Vista SP1 or later"
<< " => will revert to the Wave API ***";
return false;
}
// 2) Initializes the COM library for use by the calling thread.
// The COM init wrapper sets the thread's concurrency model to MTA,
// and creates a new apartment for the thread if one is required. The
// wrapper also ensures that each call to CoInitializeEx is balanced
// by a corresponding call to CoUninitialize.
//
ScopedCOMInitializer comInit(ScopedCOMInitializer::kMTA);
if (!comInit.succeeded()) {
// Things will work even if an STA thread is calling this method but we
// want to ensure that MTA is used and therefore return false here.
return false;
}
// 3) Check if the MMDevice API is available.
//
// The Windows Multimedia Device (MMDevice) API enables audio clients to
// discover audio endpoint devices, determine their capabilities, and create
// driver instances for those devices.
// Header file Mmdeviceapi.h defines the interfaces in the MMDevice API.
// The MMDevice API consists of several interfaces. The first of these is the
// IMMDeviceEnumerator interface. To access the interfaces in the MMDevice
// API, a client obtains a reference to the IMMDeviceEnumerator interface of a
// device-enumerator object by calling the CoCreateInstance function.
//
// Through the IMMDeviceEnumerator interface, the client can obtain references
// to the other interfaces in the MMDevice API. The MMDevice API implements
// the following interfaces:
//
// IMMDevice Represents an audio device.
// IMMDeviceCollection Represents a collection of audio devices.
// IMMDeviceEnumerator Provides methods for enumerating audio devices.
// IMMEndpoint Represents an audio endpoint device.
//
IMMDeviceEnumerator* pIMMD(NULL);
const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
hr = CoCreateInstance(
CLSID_MMDeviceEnumerator, // GUID value of MMDeviceEnumerator coclass
NULL, CLSCTX_ALL,
IID_IMMDeviceEnumerator, // GUID value of the IMMDeviceEnumerator
// interface
(void**)&pIMMD);
if (FAILED(hr)) {
RTC_LOG(LS_ERROR) << "AudioDeviceWindowsCore::CoreAudioIsSupported()"
<< " Failed to create the required COM object (hr=" << hr
<< ")";
RTC_LOG(LS_VERBOSE) << "AudioDeviceWindowsCore::CoreAudioIsSupported()"
<< " CoCreateInstance(MMDeviceEnumerator) failed (hr="
<< hr << ")";
const DWORD dwFlags =
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
const DWORD dwLangID = MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US);
// Gets the system's human readable message string for this HRESULT.
// All error message in English by default.
DWORD messageLength = ::FormatMessageW(dwFlags, 0, hr, dwLangID, errorText,
MAXERRORLENGTH, NULL);
assert(messageLength <= MAXERRORLENGTH);
// Trims tailing white space (FormatMessage() leaves a trailing cr-lf.).
for (; messageLength && ::isspace(errorText[messageLength - 1]);
--messageLength) {
errorText[messageLength - 1] = '\0';
}
StringCchPrintfW(buf, MAXERRORLENGTH, L"Error details: ");
StringCchCatW(buf, MAXERRORLENGTH, errorText);
RTC_LOG(LS_VERBOSE) << buf;
} else {
MMDeviceIsAvailable = true;
RTC_LOG(LS_VERBOSE)
<< "AudioDeviceWindowsCore::CoreAudioIsSupported()"
<< " CoCreateInstance(MMDeviceEnumerator) succeeded (hr=" << hr << ")";
SAFE_RELEASE(pIMMD);
}
// 4) Verify that we can create and initialize our Core Audio class.
//
// Also, perform a limited "API test" to ensure that Core Audio is supported
// for all devices.
//
if (MMDeviceIsAvailable) {
coreAudioIsSupported = false;
AudioDeviceWindowsCore* p = new AudioDeviceWindowsCore();
if (p == NULL) {
return false;
}
int ok(0);
int temp_ok(0);
bool available(false);
if (p->Init() != InitStatus::OK) {
ok |= -1;
}
int16_t numDevsRec = p->RecordingDevices();
for (uint16_t i = 0; i < numDevsRec; i++) {
ok |= p->SetRecordingDevice(i);
temp_ok = p->RecordingIsAvailable(available);
ok |= temp_ok;
ok |= (available == false);
if (available) {
ok |= p->InitMicrophone();
}
if (ok) {
RTC_LOG(LS_WARNING)
<< "AudioDeviceWindowsCore::CoreAudioIsSupported()"
<< " Failed to use Core Audio Recording for device id=" << i;
}
}
int16_t numDevsPlay = p->PlayoutDevices();
for (uint16_t i = 0; i < numDevsPlay; i++) {
ok |= p->SetPlayoutDevice(i);
temp_ok = p->PlayoutIsAvailable(available);
ok |= temp_ok;
ok |= (available == false);
if (available) {
ok |= p->InitSpeaker();
}
if (ok) {
RTC_LOG(LS_WARNING)
<< "AudioDeviceWindowsCore::CoreAudioIsSupported()"
<< " Failed to use Core Audio Playout for device id=" << i;
}
}
ok |= p->Terminate();
if (ok == 0) {
coreAudioIsSupported = true;
}
delete p;
}
if (coreAudioIsSupported) {
RTC_LOG(LS_VERBOSE) << "*** Windows Core Audio is supported ***";
} else {
RTC_LOG(LS_VERBOSE) << "*** Windows Core Audio is NOT supported"
<< " => will revert to the Wave API ***";
}
return (coreAudioIsSupported);
}
// ============================================================================
// Construction & Destruction
// ============================================================================
// ----------------------------------------------------------------------------
// AudioDeviceWindowsCore() - ctor
// ----------------------------------------------------------------------------
AudioDeviceWindowsCore::AudioDeviceWindowsCore()
: _avrtLibrary(NULL),
_winSupportAvrt(false),
_comInit(ScopedCOMInitializer::kMTA),
_ptrAudioBuffer(NULL),
_ptrEnumerator(NULL),
_ptrRenderCollection(NULL),
_ptrCaptureCollection(NULL),
_ptrDeviceOut(NULL),
_ptrDeviceIn(NULL),
_ptrClientOut(NULL),
_ptrClientIn(NULL),
_ptrRenderClient(NULL),
_ptrCaptureClient(NULL),
_ptrCaptureVolume(NULL),
_ptrRenderSimpleVolume(NULL),
_dmo(NULL),
_mediaBuffer(NULL),
_builtInAecEnabled(false),
_hRenderSamplesReadyEvent(NULL),
_hPlayThread(NULL),
_hRenderStartedEvent(NULL),
_hShutdownRenderEvent(NULL),
_hCaptureSamplesReadyEvent(NULL),
_hRecThread(NULL),
_hCaptureStartedEvent(NULL),
_hShutdownCaptureEvent(NULL),
_hMmTask(NULL),
_playAudioFrameSize(0),
_playSampleRate(0),
_playBlockSize(0),
_playChannels(2),
_sndCardPlayDelay(0),
_sndCardRecDelay(0),
_writtenSamples(0),
_readSamples(0),
_recAudioFrameSize(0),
_recSampleRate(0),
_recBlockSize(0),
_recChannels(2),
_initialized(false),
_recording(false),
_playing(false),
_recIsInitialized(false),
_playIsInitialized(false),
_speakerIsInitialized(false),
_microphoneIsInitialized(false),
_usingInputDeviceIndex(false),
_usingOutputDeviceIndex(false),
_inputDevice(AudioDeviceModule::kDefaultCommunicationDevice),
_outputDevice(AudioDeviceModule::kDefaultCommunicationDevice),
_inputDeviceIndex(0),
_outputDeviceIndex(0) {
RTC_LOG(LS_INFO) << __FUNCTION__ << " created";
assert(_comInit.succeeded());
// Try to load the Avrt DLL
if (!_avrtLibrary) {
// Get handle to the Avrt DLL module.
_avrtLibrary = LoadLibrary(TEXT("Avrt.dll"));
if (_avrtLibrary) {
// Handle is valid (should only happen if OS larger than vista & win7).
// Try to get the function addresses.
RTC_LOG(LS_VERBOSE) << "AudioDeviceWindowsCore::AudioDeviceWindowsCore()"
<< " The Avrt DLL module is now loaded";
_PAvRevertMmThreadCharacteristics =
(PAvRevertMmThreadCharacteristics)GetProcAddress(
_avrtLibrary, "AvRevertMmThreadCharacteristics");
_PAvSetMmThreadCharacteristicsA =
(PAvSetMmThreadCharacteristicsA)GetProcAddress(
_avrtLibrary, "AvSetMmThreadCharacteristicsA");
_PAvSetMmThreadPriority = (PAvSetMmThreadPriority)GetProcAddress(
_avrtLibrary, "AvSetMmThreadPriority");
if (_PAvRevertMmThreadCharacteristics &&
_PAvSetMmThreadCharacteristicsA && _PAvSetMmThreadPriority) {
RTC_LOG(LS_VERBOSE)
<< "AudioDeviceWindowsCore::AudioDeviceWindowsCore()"
<< " AvRevertMmThreadCharacteristics() is OK";
RTC_LOG(LS_VERBOSE)
<< "AudioDeviceWindowsCore::AudioDeviceWindowsCore()"
<< " AvSetMmThreadCharacteristicsA() is OK";
RTC_LOG(LS_VERBOSE)
<< "AudioDeviceWindowsCore::AudioDeviceWindowsCore()"
<< " AvSetMmThreadPriority() is OK";
_winSupportAvrt = true;
}
}
}
// Create our samples ready events - we want auto reset events that start in
// the not-signaled state. The state of an auto-reset event object remains
// signaled until a single waiting thread is released, at which time the
// system automatically sets the state to nonsignaled. If no threads are
// waiting, the event object's state remains signaled. (Except for
// _hShutdownCaptureEvent, which is used to shutdown multiple threads).
_hRenderSamplesReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
_hCaptureSamplesReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
_hShutdownRenderEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
_hShutdownCaptureEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
_hRenderStartedEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
_hCaptureStartedEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
_perfCounterFreq.QuadPart = 1;
_perfCounterFactor = 0.0;
// list of number of channels to use on recording side
_recChannelsPrioList[0] = 2; // stereo is prio 1
_recChannelsPrioList[1] = 1; // mono is prio 2
_recChannelsPrioList[2] = 4; // quad is prio 3
// list of number of channels to use on playout side
_playChannelsPrioList[0] = 2; // stereo is prio 1
_playChannelsPrioList[1] = 1; // mono is prio 2
HRESULT hr;
// We know that this API will work since it has already been verified in
// CoreAudioIsSupported, hence no need to check for errors here as well.
// Retrive the IMMDeviceEnumerator API (should load the MMDevAPI.dll)
// TODO(henrika): we should probably move this allocation to Init() instead
// and deallocate in Terminate() to make the implementation more symmetric.
CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL,
__uuidof(IMMDeviceEnumerator),
reinterpret_cast<void**>(&_ptrEnumerator));
assert(NULL != _ptrEnumerator);
// DMO initialization for built-in WASAPI AEC.
{
IMediaObject* ptrDMO = NULL;
hr = CoCreateInstance(CLSID_CWMAudioAEC, NULL, CLSCTX_INPROC_SERVER,
IID_IMediaObject, reinterpret_cast<void**>(&ptrDMO));
if (FAILED(hr) || ptrDMO == NULL) {
// Since we check that _dmo is non-NULL in EnableBuiltInAEC(), the
// feature is prevented from being enabled.
_builtInAecEnabled = false;
_TraceCOMError(hr);
}
_dmo = ptrDMO;
SAFE_RELEASE(ptrDMO);
}
}
// ----------------------------------------------------------------------------
// AudioDeviceWindowsCore() - dtor
// ----------------------------------------------------------------------------
AudioDeviceWindowsCore::~AudioDeviceWindowsCore() {
RTC_LOG(LS_INFO) << __FUNCTION__ << " destroyed";
Terminate();
// The IMMDeviceEnumerator is created during construction. Must release
// it here and not in Terminate() since we don't recreate it in Init().
SAFE_RELEASE(_ptrEnumerator);
_ptrAudioBuffer = NULL;
if (NULL != _hRenderSamplesReadyEvent) {
CloseHandle(_hRenderSamplesReadyEvent);
_hRenderSamplesReadyEvent = NULL;
}
if (NULL != _hCaptureSamplesReadyEvent) {
CloseHandle(_hCaptureSamplesReadyEvent);
_hCaptureSamplesReadyEvent = NULL;
}
if (NULL != _hRenderStartedEvent) {
CloseHandle(_hRenderStartedEvent);
_hRenderStartedEvent = NULL;
}
if (NULL != _hCaptureStartedEvent) {
CloseHandle(_hCaptureStartedEvent);
_hCaptureStartedEvent = NULL;
}
if (NULL != _hShutdownRenderEvent) {
CloseHandle(_hShutdownRenderEvent);
_hShutdownRenderEvent = NULL;
}
if (NULL != _hShutdownCaptureEvent) {
CloseHandle(_hShutdownCaptureEvent);
_hShutdownCaptureEvent = NULL;
}
if (_avrtLibrary) {
BOOL freeOK = FreeLibrary(_avrtLibrary);
if (!freeOK) {
RTC_LOG(LS_WARNING)
<< "AudioDeviceWindowsCore::~AudioDeviceWindowsCore()"
<< " failed to free the loaded Avrt DLL module correctly";
} else {
RTC_LOG(LS_WARNING) << "AudioDeviceWindowsCore::~AudioDeviceWindowsCore()"
<< " the Avrt DLL module is now unloaded";
}
}
}
// ============================================================================
// API
// ============================================================================
// ----------------------------------------------------------------------------
// AttachAudioBuffer
// ----------------------------------------------------------------------------
void AudioDeviceWindowsCore::AttachAudioBuffer(AudioDeviceBuffer* audioBuffer) {
_ptrAudioBuffer = audioBuffer;
// Inform the AudioBuffer about default settings for this implementation.
// Set all values to zero here since the actual settings will be done by
// InitPlayout and InitRecording later.
_ptrAudioBuffer->SetRecordingSampleRate(0);
_ptrAudioBuffer->SetPlayoutSampleRate(0);
_ptrAudioBuffer->SetRecordingChannels(0);
_ptrAudioBuffer->SetPlayoutChannels(0);
}
// ----------------------------------------------------------------------------
// ActiveAudioLayer
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::ActiveAudioLayer(
AudioDeviceModule::AudioLayer& audioLayer) const {
audioLayer = AudioDeviceModule::kWindowsCoreAudio;
return 0;
}
// ----------------------------------------------------------------------------
// Init
// ----------------------------------------------------------------------------
AudioDeviceGeneric::InitStatus AudioDeviceWindowsCore::Init() {
rtc::CritScope lock(&_critSect);
if (_initialized) {
return InitStatus::OK;
}
// Enumerate all audio rendering and capturing endpoint devices.
// Note that, some of these will not be able to select by the user.
// The complete collection is for internal use only.
_EnumerateEndpointDevicesAll(eRender);
_EnumerateEndpointDevicesAll(eCapture);
_initialized = true;
return InitStatus::OK;
}
// ----------------------------------------------------------------------------
// Terminate
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::Terminate() {
rtc::CritScope lock(&_critSect);
if (!_initialized) {
return 0;
}
_initialized = false;
_speakerIsInitialized = false;
_microphoneIsInitialized = false;
_playing = false;
_recording = false;
SAFE_RELEASE(_ptrRenderCollection);
SAFE_RELEASE(_ptrCaptureCollection);
SAFE_RELEASE(_ptrDeviceOut);
SAFE_RELEASE(_ptrDeviceIn);
SAFE_RELEASE(_ptrClientOut);
SAFE_RELEASE(_ptrClientIn);
SAFE_RELEASE(_ptrRenderClient);
SAFE_RELEASE(_ptrCaptureClient);
SAFE_RELEASE(_ptrCaptureVolume);
SAFE_RELEASE(_ptrRenderSimpleVolume);
return 0;
}
// ----------------------------------------------------------------------------
// Initialized
// ----------------------------------------------------------------------------
bool AudioDeviceWindowsCore::Initialized() const {
return (_initialized);
}
// ----------------------------------------------------------------------------
// InitSpeaker
// 从新获取设备
//
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::InitSpeaker() {
rtc::CritScope lock(&_critSect);
if (_playing) {
return -1;
}
if (_ptrDeviceOut == NULL) {
return -1;
}
// TODO@chensong 20220718 设备是否使用索引号
if (_usingOutputDeviceIndex) {
int16_t nDevices = PlayoutDevices();
if (_outputDeviceIndex > (nDevices - 1)) {
RTC_LOG(LS_ERROR) << "current device selection is invalid => unable to"
<< " initialize";
return -1;
}
}
int32_t ret(0);
SAFE_RELEASE(_ptrDeviceOut);
if (_usingOutputDeviceIndex) {
// Refresh the selected rendering endpoint device using current index
ret = _GetListDevice(eRender, _outputDeviceIndex, &_ptrDeviceOut);
} else {
ERole role;
(_outputDevice == AudioDeviceModule::kDefaultDevice)
? role = eConsole
: role = eCommunications;
// Refresh the selected rendering endpoint device using role
// TODO@chensong 20220718 从新刷新设备 ---》 为什么刷新
ret = _GetDefaultDevice(eRender, role, &_ptrDeviceOut);
}
if (ret != 0 || (_ptrDeviceOut == NULL)) {
RTC_LOG(LS_ERROR) << "failed to initialize the rendering enpoint device";
SAFE_RELEASE(_ptrDeviceOut);
return -1;
}
IAudioSessionManager* pManager = NULL;
ret = _ptrDeviceOut->Activate(__uuidof(IAudioSessionManager), CLSCTX_ALL,
NULL, (void**)&pManager);
if (ret != 0 || pManager == NULL) {
RTC_LOG(LS_ERROR) << "failed to initialize the render manager";
SAFE_RELEASE(pManager);
return -1;
}
SAFE_RELEASE(_ptrRenderSimpleVolume);
// TODO@chensong 20220718 ===>GetSimpleAudioVolume
// 该方法属于IAudioSessionManager(WASAPI)
// 简单的音频音量控制, 只改变应用组件的音量
// 参数1： 指向会话GUID的指针,如果该参数为NULL, 该方法将音频流设置给默认Session
// 参数2: 指定该Session是否是一个跨进程的Session
// 参数3: 获得SimpleAudioVolume对象 调整扬声器得大小了
ret = pManager->GetSimpleAudioVolume(NULL, FALSE, &_ptrRenderSimpleVolume);
if (ret != 0 || _ptrRenderSimpleVolume == NULL) {
RTC_LOG(LS_ERROR) << "failed to initialize the render simple volume";
SAFE_RELEASE(pManager);
SAFE_RELEASE(_ptrRenderSimpleVolume);
return -1;
}
SAFE_RELEASE(pManager);
// 修改speaker状态
_speakerIsInitialized = true;
return 0;
}
// ----------------------------------------------------------------------------
// InitMicrophone
// 使用那个设备
// 设备音量控制
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::InitMicrophone() {
rtc::CritScope lock(&_critSect);
//有没有开启录制
if (_recording)
{
return -1;
}
// 采集设备是否获取到了
if (_ptrDeviceIn == NULL)
{
return -1;
}
if (_usingInputDeviceIndex)
{
int16_t nDevices = RecordingDevices();
if (_inputDeviceIndex > (nDevices - 1)) {
RTC_LOG(LS_ERROR) << "current device selection is invalid => unable to"
<< " initialize";
return -1;
}
}
int32_t ret(0);
SAFE_RELEASE(_ptrDeviceIn);
if (_usingInputDeviceIndex) {
// Refresh the selected capture endpoint device using current index
ret = _GetListDevice(eCapture, _inputDeviceIndex, &_ptrDeviceIn);
} else {
ERole role;
(_inputDevice == AudioDeviceModule::kDefaultDevice)
? role = eConsole
: role = eCommunications;
// Refresh the selected capture endpoint device using role
//从新获取采集设备
ret = _GetDefaultDevice(eCapture, role, &_ptrDeviceIn);
}
if (ret != 0 || (_ptrDeviceIn == NULL)) {
RTC_LOG(LS_ERROR) << "failed to initialize the capturing enpoint device";
SAFE_RELEASE(_ptrDeviceIn);
return -1;
}
SAFE_RELEASE(_ptrCaptureVolume);
ret = _ptrDeviceIn->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL,
reinterpret_cast<void**>(&_ptrCaptureVolume));
if (ret != 0 || _ptrCaptureVolume == NULL)
{
RTC_LOG(LS_ERROR) << "failed to initialize the capture volume";
SAFE_RELEASE(_ptrCaptureVolume);
return -1;
}
_microphoneIsInitialized = true;
return 0;
}
// ----------------------------------------------------------------------------
// SpeakerIsInitialized
// ----------------------------------------------------------------------------
bool AudioDeviceWindowsCore::SpeakerIsInitialized() const {
return (_speakerIsInitialized);
}
// ----------------------------------------------------------------------------
// MicrophoneIsInitialized
// ----------------------------------------------------------------------------
bool AudioDeviceWindowsCore::MicrophoneIsInitialized() const {
return (_microphoneIsInitialized);
}
// ----------------------------------------------------------------------------
// SpeakerVolumeIsAvailable
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::SpeakerVolumeIsAvailable(bool& available) {
rtc::CritScope lock(&_critSect);
if (_ptrDeviceOut == NULL) {
return -1;
}
HRESULT hr = S_OK;
IAudioSessionManager* pManager = NULL;
ISimpleAudioVolume* pVolume = NULL;
hr = _ptrDeviceOut->Activate(__uuidof(IAudioSessionManager), CLSCTX_ALL, NULL,
(void**)&pManager);
EXIT_ON_ERROR(hr);
hr = pManager->GetSimpleAudioVolume(NULL, FALSE, &pVolume);
EXIT_ON_ERROR(hr);
float volume(0.0f);
hr = pVolume->GetMasterVolume(&volume);
if (FAILED(hr)) {
available = false;
}
available = true;
SAFE_RELEASE(pManager);
SAFE_RELEASE(pVolume);
return 0;
Exit:
_TraceCOMError(hr);
SAFE_RELEASE(pManager);
SAFE_RELEASE(pVolume);
return -1;
}
// ----------------------------------------------------------------------------
// SetSpeakerVolume
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::SetSpeakerVolume(uint32_t volume) {
{
rtc::CritScope lock(&_critSect);
if (!_speakerIsInitialized) {
return -1;
}
if (_ptrDeviceOut == NULL) {
return -1;
}
}
if (volume < (uint32_t)MIN_CORE_SPEAKER_VOLUME ||
volume > (uint32_t)MAX_CORE_SPEAKER_VOLUME) {
return -1;
}
HRESULT hr = S_OK;
// scale input volume to valid range (0.0 to 1.0)
const float fLevel = (float)volume / MAX_CORE_SPEAKER_VOLUME;
_volumeMutex.Enter();
hr = _ptrRenderSimpleVolume->SetMasterVolume(fLevel, NULL);
_volumeMutex.Leave();
EXIT_ON_ERROR(hr);
return 0;
Exit:
_TraceCOMError(hr);
return -1;
}
// ----------------------------------------------------------------------------
// SpeakerVolume
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::SpeakerVolume(uint32_t& volume) const {
{
rtc::CritScope lock(&_critSect);
if (!_speakerIsInitialized) {
return -1;
}
if (_ptrDeviceOut == NULL) {
return -1;
}
}
HRESULT hr = S_OK;
float fLevel(0.0f);
_volumeMutex.Enter();
hr = _ptrRenderSimpleVolume->GetMasterVolume(&fLevel);
_volumeMutex.Leave();
EXIT_ON_ERROR(hr);
// scale input volume range [0.0,1.0] to valid output range
volume = static_cast<uint32_t>(fLevel * MAX_CORE_SPEAKER_VOLUME);
return 0;
Exit:
_TraceCOMError(hr);
return -1;
}
// ----------------------------------------------------------------------------
// MaxSpeakerVolume
//
// The internal range for Core Audio is 0.0 to 1.0, where 0.0 indicates
// silence and 1.0 indicates full volume (no attenuation).
// We add our (webrtc-internal) own max level to match the Wave API and
// how it is used today in VoE.
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::MaxSpeakerVolume(uint32_t& maxVolume) const {
if (!_speakerIsInitialized) {
return -1;
}
maxVolume = static_cast<uint32_t>(MAX_CORE_SPEAKER_VOLUME);
return 0;
}
// ----------------------------------------------------------------------------
// MinSpeakerVolume
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::MinSpeakerVolume(uint32_t& minVolume) const {
if (!_speakerIsInitialized) {
return -1;
}
minVolume = static_cast<uint32_t>(MIN_CORE_SPEAKER_VOLUME);
return 0;
}
// ----------------------------------------------------------------------------
// SpeakerMuteIsAvailable
// ----------------------------------------------------------------------------
int32_t AudioDeviceWindowsCore::SpeakerMuteIsAvailable(bool& available) {
rtc::CritScope lock(&_critSect);
if (_ptrDeviceOut == NULL) {
return -1;
}
HRESULT hr = S_OK;
IAudioEndpointVolume* pVolume = NULL;
// Query the speaker system mute state.
hr = _ptrDeviceOut->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL,
reinterpret_cast<void**>(&pVolume));