CoreAudio/PublicUtility/CAHALAudioDevice.cpp
/* |
File: CAHALAudioDevice.cpp |
Abstract: CAHALAudioDevice.h |
Version: 1.1 |
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*/ |
//================================================================================================== |
// Includes |
//================================================================================================== |
// Self Include |
#include "CAHALAudioDevice.h" |
// PublicUtility Includes |
#include "CAAutoDisposer.h" |
#include "CAHALAudioStream.h" |
#include "CAHALAudioSystemObject.h" |
#include "CAPropertyAddress.h" |
//================================================================================================== |
// CAHALAudioDevice |
//================================================================================================== |
CAHALAudioDevice::CAHALAudioDevice(AudioObjectID inAudioDevice) |
: |
CAHALAudioObject(inAudioDevice) |
{ |
} |
CAHALAudioDevice::CAHALAudioDevice(CFStringRef inUID) |
: |
CAHALAudioObject(CAHALAudioSystemObject().GetAudioDeviceForUID(inUID)) |
{ |
} |
CAHALAudioDevice::~CAHALAudioDevice() |
{ |
} |
CFStringRef CAHALAudioDevice::CopyDeviceUID() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDeviceUID); |
return GetPropertyData_CFString(theAddress, 0, NULL); |
} |
bool CAHALAudioDevice::HasModelUID() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyModelUID); |
return HasProperty(theAddress); |
} |
CFStringRef CAHALAudioDevice::CopyModelUID() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyModelUID); |
return GetPropertyData_CFString(theAddress, 0, NULL); |
} |
CFStringRef CAHALAudioDevice::CopyConfigurationApplicationBundleID() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyConfigurationApplication); |
return GetPropertyData_CFString(theAddress, 0, NULL); |
} |
CFURLRef CAHALAudioDevice::CopyIconLocation() const |
{ |
CFURLRef theAnswer = NULL; |
CAPropertyAddress theAddress(kAudioDevicePropertyIcon); |
UInt32 theSize = sizeof(CFURLRef); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
UInt32 CAHALAudioDevice::GetTransportType() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyTransportType); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
bool CAHALAudioDevice::CanBeDefaultDevice(bool inIsInput, bool inIsSystem) const |
{ |
CAPropertyAddress theAddress(inIsSystem ? kAudioDevicePropertyDeviceCanBeDefaultSystemDevice : kAudioDevicePropertyDeviceCanBeDefaultDevice, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
return GetPropertyData_UInt32(theAddress, 0, NULL) != 0; |
} |
bool CAHALAudioDevice::HasDevicePlugInStatus() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlugIn); |
return HasProperty(theAddress); |
} |
OSStatus CAHALAudioDevice::GetDevicePlugInStatus() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlugIn); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
bool CAHALAudioDevice::IsAlive() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDeviceIsAlive); |
return GetPropertyData_UInt32(theAddress, 0, NULL) != 0; |
} |
bool CAHALAudioDevice::IsHidden() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyIsHidden); |
return GetPropertyData_UInt32(theAddress, 0, NULL) != 0; |
} |
pid_t CAHALAudioDevice::GetHogModeOwner() const |
{ |
pid_t theAnswer = -1; |
CAPropertyAddress theAddress(kAudioDevicePropertyHogMode); |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = sizeof(pid_t); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
} |
return theAnswer; |
} |
bool CAHALAudioDevice::IsHogModeSettable() const |
{ |
bool theAnswer = false; |
CAPropertyAddress theAddress(kAudioDevicePropertyHogMode); |
if(HasProperty(theAddress)) |
{ |
theAnswer = IsPropertySettable(theAddress); |
} |
return theAnswer; |
} |
bool CAHALAudioDevice::TakeHogMode() |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyHogMode); |
pid_t thePID = getpid(); |
if(HasProperty(theAddress)) |
{ |
SetPropertyData(theAddress, 0, NULL, sizeof(pid_t), &thePID); |
} |
return thePID == getpid(); |
} |
void CAHALAudioDevice::ReleaseHogMode() |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyHogMode); |
if(HasProperty(theAddress)) |
{ |
pid_t thePID = -1; |
SetPropertyData(theAddress, 0, NULL, sizeof(pid_t), &thePID); |
} |
} |
bool CAHALAudioDevice::HasPreferredStereoChannels(bool inIsInput) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelsForStereo, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
return HasProperty(theAddress); |
} |
void CAHALAudioDevice::GetPreferredStereoChannels(bool inIsInput, UInt32& outLeft, UInt32& outRight) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelsForStereo, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theStereoPair[2] = { 0, 0 }; |
UInt32 theSize = 2 * sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, theStereoPair); |
outLeft = theStereoPair[0]; |
outRight = theStereoPair[1]; |
} |
void CAHALAudioDevice::SetPreferredStereoChannels(bool inIsInput, UInt32 inLeft, UInt32 inRight) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelsForStereo, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theStereoPair[2] = { inLeft, inRight }; |
SetPropertyData(theAddress, 0, NULL, 2 * sizeof(UInt32), theStereoPair); |
} |
bool CAHALAudioDevice::HasPreferredChannelLayout(bool inIsInput) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelLayout, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
return HasProperty(theAddress); |
} |
void CAHALAudioDevice::GetPreferredChannelLayout(bool inIsInput, AudioChannelLayout& outChannelLayout) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelLayout, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theSize = (SizeOf32(AudioChannelLayout) - SizeOf32(AudioChannelDescription)) + GetTotalNumberChannels(inIsInput) * SizeOf32(AudioChannelDescription); |
GetPropertyData(theAddress, 0, NULL, theSize, &outChannelLayout); |
} |
void CAHALAudioDevice::SetPreferredStereoChannels(bool inIsInput, AudioChannelLayout& inChannelLayout) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPreferredChannelLayout, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theSize = (SizeOf32(AudioChannelLayout) - SizeOf32(AudioChannelDescription)) + GetTotalNumberChannels(inIsInput) * SizeOf32(AudioChannelDescription); |
SetPropertyData(theAddress, 0, NULL, theSize, &inChannelLayout); |
} |
UInt32 CAHALAudioDevice::GetNumberRelatedAudioDevices() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyRelatedDevices); |
UInt32 theAnswer = 0; |
if(HasProperty(theAddress)) |
{ |
theAnswer = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer /= SizeOf32(AudioObjectID); |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetRelatedAudioDevices(UInt32& ioNumberRelatedDevices, AudioObjectID* outRelatedDevices) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyRelatedDevices); |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = ioNumberRelatedDevices * SizeOf32(AudioObjectID); |
GetPropertyData(theAddress, 0, NULL, theSize, outRelatedDevices); |
ioNumberRelatedDevices = theSize / SizeOf32(AudioObjectID); |
} |
else |
{ |
UInt32 theSize = ioNumberRelatedDevices * SizeOf32(AudioObjectID); |
memset(outRelatedDevices, 0, theSize); |
ioNumberRelatedDevices = 0; |
} |
} |
AudioObjectID CAHALAudioDevice::GetRelatedAudioDeviceByIndex(UInt32 inIndex) const |
{ |
AudioObjectID theAnswer = kAudioObjectUnknown; |
UInt32 theNumberRelatedDevices = GetNumberRelatedAudioDevices(); |
if((theNumberRelatedDevices > 0) && (inIndex < theNumberRelatedDevices)) |
{ |
CAAutoArrayDelete<AudioObjectID> theRelatedDeviceList(theNumberRelatedDevices); |
GetRelatedAudioDevices(theNumberRelatedDevices, theRelatedDeviceList); |
if((theNumberRelatedDevices > 0) && (inIndex < theNumberRelatedDevices)) |
{ |
theAnswer = theRelatedDeviceList[inIndex]; |
} |
} |
return theAnswer; |
} |
UInt32 CAHALAudioDevice::GetNumberStreams(bool inIsInput) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStreams, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theAnswer = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer /= SizeOf32(AudioObjectID); |
return theAnswer; |
} |
void CAHALAudioDevice::GetStreams(bool inIsInput, UInt32& ioNumberStreams, AudioObjectID* outStreamList) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStreams, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theSize = ioNumberStreams * SizeOf32(AudioObjectID); |
GetPropertyData(theAddress, 0, NULL, theSize, outStreamList); |
ioNumberStreams = theSize / SizeOf32(AudioObjectID); |
} |
AudioObjectID CAHALAudioDevice::GetStreamByIndex(bool inIsInput, UInt32 inIndex) const |
{ |
AudioObjectID theAnswer = kAudioObjectUnknown; |
UInt32 theNumberStreams = GetNumberStreams(inIsInput); |
if((theNumberStreams > 0) && (inIndex < theNumberStreams)) |
{ |
CAAutoArrayDelete<AudioObjectID> theStreamList(theNumberStreams); |
GetStreams(inIsInput, theNumberStreams, theStreamList); |
if((theNumberStreams > 0) && (inIndex < theNumberStreams)) |
{ |
theAnswer = theStreamList[inIndex]; |
} |
} |
return theAnswer; |
} |
UInt32 CAHALAudioDevice::GetTotalNumberChannels(bool inIsInput) const |
{ |
UInt32 theAnswer = 0; |
CAPropertyAddress theAddress(kAudioDevicePropertyStreamConfiguration, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
UInt32 theSize = GetPropertyDataSize(theAddress, 0, NULL); |
CAAutoFree<AudioBufferList> theBufferList(theSize); |
GetPropertyData(theAddress, 0, NULL, theSize, theBufferList); |
for(UInt32 theIndex = 0; theIndex < theBufferList->mNumberBuffers; ++theIndex) |
{ |
theAnswer += theBufferList->mBuffers[theIndex].mNumberChannels; |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetCurrentVirtualFormats(bool inIsInput, UInt32& ioNumberStreams, AudioStreamBasicDescription* outFormats) const |
{ |
ioNumberStreams = std::min(ioNumberStreams, GetNumberStreams(inIsInput)); |
for(UInt32 theIndex = 0; theIndex < ioNumberStreams; ++theIndex) |
{ |
CAHALAudioStream theStream(GetStreamByIndex(inIsInput, theIndex)); |
theStream.GetCurrentVirtualFormat(outFormats[theIndex]); |
} |
} |
void CAHALAudioDevice::GetCurrentPhysicalFormats(bool inIsInput, UInt32& ioNumberStreams, AudioStreamBasicDescription* outFormats) const |
{ |
ioNumberStreams = std::min(ioNumberStreams, GetNumberStreams(inIsInput)); |
for(UInt32 theIndex = 0; theIndex < ioNumberStreams; ++theIndex) |
{ |
CAHALAudioStream theStream(GetStreamByIndex(inIsInput, theIndex)); |
theStream.GetCurrentPhysicalFormat(outFormats[theIndex]); |
} |
} |
bool CAHALAudioDevice::IsRunning() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDeviceIsRunning); |
UInt32 theAnswer = GetPropertyData_UInt32(theAddress, 0, NULL); |
return theAnswer != 0; |
} |
bool CAHALAudioDevice::IsRunningSomewhere() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDeviceIsRunningSomewhere); |
UInt32 theAnswer = 0; |
if(HasProperty(theAddress)) |
{ |
theAnswer = GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
return theAnswer != 0; |
} |
UInt32 CAHALAudioDevice::GetLatency(bool inIsInput) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyLatency, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
UInt32 CAHALAudioDevice::GetSafetyOffset(bool inIsInput) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySafetyOffset, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
bool CAHALAudioDevice::HasClockDomain() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockDomain); |
return HasProperty(theAddress); |
} |
UInt32 CAHALAudioDevice::GetClockDomain() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockDomain); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
Float64 CAHALAudioDevice::GetActualSampleRate() const |
{ |
Float64 theAnswer = 0; |
CAPropertyAddress theAddress(kAudioDevicePropertyActualSampleRate); |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = sizeof(Float64); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
} |
else |
{ |
theAnswer = GetNominalSampleRate(); |
} |
return theAnswer; |
} |
Float64 CAHALAudioDevice::GetNominalSampleRate() const |
{ |
Float64 theAnswer = 0; |
CAPropertyAddress theAddress(kAudioDevicePropertyNominalSampleRate); |
UInt32 theSize = sizeof(Float64); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
void CAHALAudioDevice::SetNominalSampleRate(Float64 inSampleRate) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyNominalSampleRate); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float64), &inSampleRate); |
} |
UInt32 CAHALAudioDevice::GetNumberAvailableNominalSampleRateRanges() const |
{ |
UInt32 theAnswer = 0; |
CAPropertyAddress theAddress(kAudioDevicePropertyAvailableNominalSampleRates); |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer = theSize / SizeOf32(AudioValueRange); |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetAvailableNominalSampleRateRanges(UInt32& ioNumberRanges, AudioValueRange* outRanges) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyAvailableNominalSampleRates); |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = ioNumberRanges * SizeOf32(AudioValueRange); |
GetPropertyData(theAddress, 0, NULL, theSize, outRanges); |
ioNumberRanges = theSize / SizeOf32(AudioValueRange); |
} |
else |
{ |
ioNumberRanges = 0; |
} |
} |
void CAHALAudioDevice::GetAvailableNominalSampleRateRangeByIndex(UInt32 inIndex, Float64& outMinimum, Float64& outMaximum) const |
{ |
UInt32 theNumberRanges = GetNumberAvailableNominalSampleRateRanges(); |
ThrowIf(inIndex >= theNumberRanges, CAException(kAudioHardwareIllegalOperationError), "CAHALAudioDevice::GetAvailableNominalSampleRateRangeByIndex: index out of range"); |
CAAutoArrayDelete<AudioValueRange> theRanges(theNumberRanges); |
GetAvailableNominalSampleRateRanges(theNumberRanges, theRanges); |
outMinimum = theRanges[inIndex].mMinimum; |
outMaximum = theRanges[inIndex].mMaximum; |
} |
bool CAHALAudioDevice::IsValidNominalSampleRate(Float64 inSampleRate) const |
{ |
bool theAnswer = false; |
UInt32 theNumberRanges = GetNumberAvailableNominalSampleRateRanges(); |
CAAutoArrayDelete<AudioValueRange> theRanges(theNumberRanges); |
GetAvailableNominalSampleRateRanges(theNumberRanges, theRanges); |
for(UInt32 theIndex = 0; !theAnswer && (theIndex < theNumberRanges); ++theIndex) |
{ |
theAnswer = (inSampleRate >= theRanges[theIndex].mMinimum) && (inSampleRate <= theRanges[theIndex].mMinimum); |
} |
return theAnswer; |
} |
bool CAHALAudioDevice::IsIOBufferSizeSettable() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyBufferFrameSize); |
return IsPropertySettable(theAddress); |
} |
UInt32 CAHALAudioDevice::GetIOBufferSize() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyBufferFrameSize); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
void CAHALAudioDevice::SetIOBufferSize(UInt32 inBufferSize) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyBufferFrameSize); |
SetPropertyData(theAddress, 0, NULL, sizeof(UInt32), &inBufferSize); |
} |
bool CAHALAudioDevice::UsesVariableIOBufferSizes() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyUsesVariableBufferFrameSizes); |
return HasProperty(theAddress); |
} |
UInt32 CAHALAudioDevice::GetMaximumVariableIOBufferSize() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyUsesVariableBufferFrameSizes); |
return GetPropertyData_UInt32(theAddress, 0, NULL); |
} |
bool CAHALAudioDevice::HasIOBufferSizeRange() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyBufferFrameSizeRange); |
return HasProperty(theAddress); |
} |
void CAHALAudioDevice::GetIOBufferSizeRange(UInt32& outMinimum, UInt32& outMaximum) const |
{ |
AudioValueRange theAnswer = { 0, 0 }; |
CAPropertyAddress theAddress(kAudioDevicePropertyBufferFrameSizeRange); |
UInt32 theSize = sizeof(AudioValueRange); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
outMinimum = static_cast<UInt32>(theAnswer.mMinimum); |
outMaximum = static_cast<UInt32>(theAnswer.mMaximum); |
} |
AudioDeviceIOProcID CAHALAudioDevice::CreateIOProcID(AudioDeviceIOProc inIOProc, void* inClientData) |
{ |
AudioDeviceIOProcID theAnswer = NULL; |
OSStatus theError = AudioDeviceCreateIOProcID(mObjectID, inIOProc, inClientData, &theAnswer); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::CreateIOProcID: got an error creating the IOProc ID"); |
return theAnswer; |
} |
void CAHALAudioDevice::DestroyIOProcID(AudioDeviceIOProcID inIOProcID) |
{ |
OSStatus theError = AudioDeviceDestroyIOProcID(mObjectID, inIOProcID); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::DestroyIOProcID: got an error destroying the IOProc ID"); |
} |
void CAHALAudioDevice::StartIOProc(AudioDeviceIOProcID inIOProcID) |
{ |
OSStatus theError = AudioDeviceStart(mObjectID, inIOProcID); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::StartIOProc: got an error starting an IOProc"); |
} |
void CAHALAudioDevice::StartIOProcAtTime(AudioDeviceIOProcID inIOProcID, AudioTimeStamp& ioStartTime, bool inIsInput, bool inIgnoreHardware) |
{ |
UInt32 theFlags = 0; |
if(inIsInput) |
{ |
theFlags |= kAudioDeviceStartTimeIsInputFlag; |
} |
if(inIgnoreHardware) |
{ |
theFlags |= kAudioDeviceStartTimeDontConsultDeviceFlag; |
} |
OSStatus theError = AudioDeviceStartAtTime(mObjectID, inIOProcID, &ioStartTime, theFlags); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::StartIOProcAtTime: got an error starting an IOProc"); |
} |
void CAHALAudioDevice::StopIOProc(AudioDeviceIOProcID inIOProcID) |
{ |
OSStatus theError = AudioDeviceStop(mObjectID, inIOProcID); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::StopIOProc: got an error stopping an IOProc"); |
} |
void CAHALAudioDevice::GetIOProcStreamUsage(AudioDeviceIOProcID inIOProcID, bool inIsInput, bool* outStreamUsage) const |
{ |
// make an AudioHardwareIOProcStreamUsage the right size |
UInt32 theNumberStreams = GetNumberStreams(inIsInput); |
UInt32 theSize = SizeOf32(void*) + SizeOf32(UInt32) + (theNumberStreams * SizeOf32(UInt32)); |
CAAutoFree<AudioHardwareIOProcStreamUsage> theStreamUsage(theSize); |
// set it up |
theStreamUsage->mIOProc = reinterpret_cast<void*>(inIOProcID); |
theStreamUsage->mNumberStreams = theNumberStreams; |
// get the property |
CAPropertyAddress theAddress(kAudioDevicePropertyIOProcStreamUsage, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
GetPropertyData(theAddress, 0, NULL, theSize, theStreamUsage); |
// fill out the return value |
for(UInt32 theIndex = 0; theIndex < theNumberStreams; ++theIndex) |
{ |
outStreamUsage[theIndex] = (theStreamUsage->mStreamIsOn[theIndex] != 0); |
} |
} |
void CAHALAudioDevice::SetIOProcStreamUsage(AudioDeviceIOProcID inIOProcID, bool inIsInput, const bool* inStreamUsage) |
{ |
// make an AudioHardwareIOProcStreamUsage the right size |
UInt32 theNumberStreams = GetNumberStreams(inIsInput); |
UInt32 theSize = SizeOf32(void*) + SizeOf32(UInt32) + (theNumberStreams * SizeOf32(UInt32)); |
CAAutoFree<AudioHardwareIOProcStreamUsage> theStreamUsage(theSize); |
// set it up |
theStreamUsage->mIOProc = reinterpret_cast<void*>(inIOProcID); |
theStreamUsage->mNumberStreams = theNumberStreams; |
for(UInt32 theIndex = 0; theIndex < theNumberStreams; ++theIndex) |
{ |
theStreamUsage->mStreamIsOn[theIndex] = (inStreamUsage[theIndex] ? 1 : 0); |
} |
// set the property |
CAPropertyAddress theAddress(kAudioDevicePropertyIOProcStreamUsage, inIsInput ? kAudioDevicePropertyScopeInput : kAudioDevicePropertyScopeOutput); |
SetPropertyData(theAddress, 0, NULL, theSize, theStreamUsage); |
} |
Float32 CAHALAudioDevice::GetIOCycleUsage() const |
{ |
Float32 theAnswer = 0; |
CAPropertyAddress theAddress(kAudioDevicePropertyIOCycleUsage); |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
void CAHALAudioDevice::SetIOCycleUsage(Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyIOCycleUsage); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float32), &inValue); |
} |
void CAHALAudioDevice::GetCurrentTime(AudioTimeStamp& outTime) |
{ |
OSStatus theError = AudioDeviceGetCurrentTime(mObjectID, &outTime); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::GetCurrentTime: got an error getting the current time"); |
} |
void CAHALAudioDevice::TranslateTime(const AudioTimeStamp& inTime, AudioTimeStamp& outTime) |
{ |
OSStatus theError = AudioDeviceTranslateTime(mObjectID, &inTime, &outTime); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::TranslateTime: got an error translating time"); |
} |
void CAHALAudioDevice::GetNearestStartTime(AudioTimeStamp& ioTime, bool inIsInput, bool inIgnoreHardware) |
{ |
UInt32 theFlags = 0; |
if(inIsInput) |
{ |
theFlags |= kAudioDeviceStartTimeIsInputFlag; |
} |
if(inIgnoreHardware) |
{ |
theFlags |= kAudioDeviceStartTimeDontConsultDeviceFlag; |
} |
OSStatus theError = AudioDeviceGetNearestStartTime(mObjectID, &ioTime, theFlags); |
ThrowIfError(theError, CAException(theError), "CAHALAudioDevice::GetNearestStartTime: got an error getting the start time"); |
} |
bool CAHALAudioDevice::HasVolumeControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeScalar, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::VolumeControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeScalar, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
Float32 CAHALAudioDevice::GetVolumeControlScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeScalar, inScope, inChannel); |
Float32 theValue = 0.0f; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
Float32 CAHALAudioDevice::GetVolumeControlDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeDecibels, inScope, inChannel); |
Float32 theValue = 0.0f; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
void CAHALAudioDevice::SetVolumeControlScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeScalar, inScope, inChannel); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float32), &inValue); |
} |
void CAHALAudioDevice::SetVolumeControlDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeDecibels, inScope, inChannel); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float32), &inValue); |
} |
Float32 CAHALAudioDevice::GetVolumeControlScalarForDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeDecibelsToScalar, inScope, inChannel); |
Float32 theValue = inValue; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
Float32 CAHALAudioDevice::GetVolumeControlDecibelForScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyVolumeScalarToDecibels, inScope, inChannel); |
Float32 theValue = inValue; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
bool CAHALAudioDevice::HasSubVolumeControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeScalar, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::SubVolumeControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeScalar, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
Float32 CAHALAudioDevice::GetSubVolumeControlScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeScalar, inScope, inChannel); |
Float32 theValue = 0.0f; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
Float32 CAHALAudioDevice::GetSubVolumeControlDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeDecibels, inScope, inChannel); |
Float32 theValue = 0.0f; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
void CAHALAudioDevice::SetSubVolumeControlScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeScalar, inScope, inChannel); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float32), &inValue); |
} |
void CAHALAudioDevice::SetSubVolumeControlDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeDecibels, inScope, inChannel); |
SetPropertyData(theAddress, 0, NULL, sizeof(Float32), &inValue); |
} |
Float32 CAHALAudioDevice::GetSubVolumeControlScalarForDecibelValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeDecibelsToScalar, inScope, inChannel); |
Float32 theValue = inValue; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
Float32 CAHALAudioDevice::GetSubVolumeControlDecibelForScalarValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubVolumeScalarToDecibels, inScope, inChannel); |
Float32 theValue = inValue; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
bool CAHALAudioDevice::HasMuteControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyMute, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::MuteControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyMute, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
bool CAHALAudioDevice::GetMuteControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyMute, inScope, inChannel); |
UInt32 theValue = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue != 0; |
} |
void CAHALAudioDevice::SetMuteControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel, bool inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyMute, inScope, inChannel); |
UInt32 theValue = (inValue ? 1 : 0); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
} |
bool CAHALAudioDevice::HasSoloControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySolo, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::SoloControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySolo, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
bool CAHALAudioDevice::GetSoloControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySolo, inScope, inChannel); |
UInt32 theValue = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue != 0; |
} |
void CAHALAudioDevice::SetSoloControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel, bool inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySolo, inScope, inChannel); |
UInt32 theValue = (inValue ? 1 : 0); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
} |
bool CAHALAudioDevice::HasStereoPanControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStereoPan, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::StereoPanControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStereoPan, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
Float32 CAHALAudioDevice::GetStereoPanControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStereoPan, inScope, inChannel); |
Float32 theValue = 0.0f; |
UInt32 theSize = sizeof(Float32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue; |
} |
void CAHALAudioDevice::SetStereoPanControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel, Float32 inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStereoPan, inScope, inChannel); |
UInt32 theSize = sizeof(Float32); |
SetPropertyData(theAddress, 0, NULL, theSize, &inValue); |
} |
void CAHALAudioDevice::GetStereoPanControlChannels(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32& outLeftChannel, UInt32& outRightChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyStereoPanChannels, inScope, inChannel); |
UInt32 theValue[2] = { 0, 0 }; |
UInt32 theSize = 2 * sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, theValue); |
outLeftChannel = theValue[0]; |
outRightChannel = theValue[1]; |
} |
bool CAHALAudioDevice::HasJackControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyJackIsConnected, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::GetJackControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyJackIsConnected, inScope, inChannel); |
UInt32 theValue = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue != 0; |
} |
bool CAHALAudioDevice::HasSubMuteControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubMute, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::SubMuteControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubMute, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
bool CAHALAudioDevice::GetSubMuteControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubMute, inScope, inChannel); |
UInt32 theValue = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue != 0; |
} |
void CAHALAudioDevice::SetSubMuteControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel, bool inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertySubMute, inScope, inChannel); |
UInt32 theValue = (inValue ? 1 : 0); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
} |
bool CAHALAudioDevice::HasiSubOwnerControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDriverShouldOwniSub, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::iSubOwnerControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDriverShouldOwniSub, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
bool CAHALAudioDevice::GetiSubOwnerControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDriverShouldOwniSub, inScope, inChannel); |
UInt32 theValue = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
return theValue != 0; |
} |
void CAHALAudioDevice::SetiSubOwnerControlValue(AudioObjectPropertyScope inScope, UInt32 inChannel, bool inValue) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDriverShouldOwniSub, inScope, inChannel); |
UInt32 theValue = (inValue ? 1 : 0); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &theValue); |
} |
bool CAHALAudioDevice::HasDataSourceControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSource, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::DataSourceControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSource, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
UInt32 CAHALAudioDevice::GetCurrentDataSourceID(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSource, inScope, inChannel); |
UInt32 theAnswer = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
void CAHALAudioDevice::SetCurrentDataSourceByID(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inID) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSource, inScope, inChannel); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &inID); |
} |
UInt32 CAHALAudioDevice::GetNumberAvailableDataSources(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSources, inScope, inChannel); |
UInt32 theAnswer = 0; |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer = theSize / SizeOf32(UInt32); |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetAvailableDataSources(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32& ioNumberSources, UInt32* outSources) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSources, inScope, inChannel); |
UInt32 theNumberSources = std::min(GetNumberAvailableDataSources(inScope, inChannel), ioNumberSources); |
UInt32 theSize = theNumberSources * SizeOf32(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, outSources); |
ioNumberSources = theSize / SizeOf32(UInt32); |
} |
UInt32 CAHALAudioDevice::GetAvailableDataSourceByIndex(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inIndex) const |
{ |
AudioStreamID theAnswer = 0; |
UInt32 theNumberSources = GetNumberAvailableDataSources(inScope, inChannel); |
if((theNumberSources > 0) && (inIndex < theNumberSources)) |
{ |
CAAutoArrayDelete<UInt32> theSourceList(theNumberSources); |
GetAvailableDataSources(inScope, inChannel, theNumberSources, theSourceList); |
theAnswer = theSourceList[inIndex]; |
} |
return theAnswer; |
} |
CFStringRef CAHALAudioDevice::CopyDataSourceNameForID(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inID) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyDataSourceNameForIDCFString, inScope, inChannel); |
CFStringRef theAnswer = NULL; |
AudioValueTranslation theTranslation = { &inID, sizeof(UInt32), &theAnswer, sizeof(CFStringRef) }; |
UInt32 theSize = sizeof(AudioValueTranslation); |
GetPropertyData(theAddress, 0, NULL, theSize, &theTranslation); |
return theAnswer; |
} |
bool CAHALAudioDevice::HasDataDestinationControl(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestination, inScope, inChannel); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::DataDestinationControlIsSettable(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestination, inScope, inChannel); |
return IsPropertySettable(theAddress); |
} |
UInt32 CAHALAudioDevice::GetCurrentDataDestinationID(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestination, inScope, inChannel); |
UInt32 theAnswer = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
void CAHALAudioDevice::SetCurrentDataDestinationByID(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inID) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestination, inScope, inChannel); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &inID); |
} |
UInt32 CAHALAudioDevice::GetNumberAvailableDataDestinations(AudioObjectPropertyScope inScope, UInt32 inChannel) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestinations, inScope, inChannel); |
UInt32 theAnswer = 0; |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer = theSize / SizeOf32(UInt32); |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetAvailableDataDestinations(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32& ioNumberDestinations, UInt32* outDestinations) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestinations, inScope, inChannel); |
UInt32 theNumberDestinations = std::min(GetNumberAvailableDataDestinations(inScope, inChannel), ioNumberDestinations); |
UInt32 theSize = theNumberDestinations * SizeOf32(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, outDestinations); |
ioNumberDestinations = theSize / SizeOf32(UInt32); |
} |
UInt32 CAHALAudioDevice::GetAvailableDataDestinationByIndex(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inIndex) const |
{ |
AudioStreamID theAnswer = 0; |
UInt32 theNumberDestinations = GetNumberAvailableDataDestinations(inScope, inChannel); |
if((theNumberDestinations > 0) && (inIndex < theNumberDestinations)) |
{ |
CAAutoArrayDelete<UInt32> theDestinationList(theNumberDestinations); |
GetAvailableDataDestinations(inScope, inChannel, theNumberDestinations, theDestinationList); |
theAnswer = theDestinationList[inIndex]; |
} |
return theAnswer; |
} |
CFStringRef CAHALAudioDevice::CopyDataDestinationNameForID(AudioObjectPropertyScope inScope, UInt32 inChannel, UInt32 inID) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyPlayThruDestinationNameForIDCFString, inScope, inChannel); |
CFStringRef theAnswer = NULL; |
AudioValueTranslation theTranslation = { &inID, sizeof(UInt32), &theAnswer, sizeof(CFStringRef) }; |
UInt32 theSize = sizeof(AudioValueTranslation); |
GetPropertyData(theAddress, 0, NULL, theSize, &theTranslation); |
return theAnswer; |
} |
bool CAHALAudioDevice::HasClockSourceControl() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSource); |
return HasProperty(theAddress); |
} |
bool CAHALAudioDevice::ClockSourceControlIsSettable() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSource); |
return IsPropertySettable(theAddress); |
} |
UInt32 CAHALAudioDevice::GetCurrentClockSourceID() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSource); |
UInt32 theAnswer = 0; |
UInt32 theSize = sizeof(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer); |
return theAnswer; |
} |
void CAHALAudioDevice::SetCurrentClockSourceByID(UInt32 inID) |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSource); |
UInt32 theSize = sizeof(UInt32); |
SetPropertyData(theAddress, 0, NULL, theSize, &inID); |
} |
UInt32 CAHALAudioDevice::GetNumberAvailableClockSources() const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSources); |
UInt32 theAnswer = 0; |
if(HasProperty(theAddress)) |
{ |
UInt32 theSize = GetPropertyDataSize(theAddress, 0, NULL); |
theAnswer = theSize / SizeOf32(UInt32); |
} |
return theAnswer; |
} |
void CAHALAudioDevice::GetAvailableClockSources(UInt32& ioNumberSources, UInt32* outSources) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSources); |
UInt32 theNumberSources = std::min(GetNumberAvailableClockSources(), ioNumberSources); |
UInt32 theSize = theNumberSources * SizeOf32(UInt32); |
GetPropertyData(theAddress, 0, NULL, theSize, outSources); |
ioNumberSources = theSize / SizeOf32(UInt32); |
} |
UInt32 CAHALAudioDevice::GetAvailableClockSourceByIndex(UInt32 inIndex) const |
{ |
AudioStreamID theAnswer = 0; |
UInt32 theNumberSources = GetNumberAvailableClockSources(); |
if((theNumberSources > 0) && (inIndex < theNumberSources)) |
{ |
CAAutoArrayDelete<UInt32> theSourceList(theNumberSources); |
GetAvailableClockSources(theNumberSources, theSourceList); |
theAnswer = theSourceList[inIndex]; |
} |
return theAnswer; |
} |
CFStringRef CAHALAudioDevice::CopyClockSourceNameForID(UInt32 inID) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSourceNameForIDCFString); |
CFStringRef theAnswer = NULL; |
AudioValueTranslation theTranslation = { &inID, sizeof(UInt32), &theAnswer, sizeof(CFStringRef) }; |
UInt32 theSize = sizeof(AudioValueTranslation); |
GetPropertyData(theAddress, 0, NULL, theSize, &theTranslation); |
return theAnswer; |
} |
UInt32 CAHALAudioDevice::GetClockSourceKindForID(UInt32 inID) const |
{ |
CAPropertyAddress theAddress(kAudioDevicePropertyClockSourceKindForID); |
UInt32 theAnswer = 0; |
AudioValueTranslation theTranslation = { &inID, sizeof(UInt32), &theAnswer, sizeof(UInt32) }; |
UInt32 theSize = sizeof(AudioValueTranslation); |
GetPropertyData(theAddress, 0, NULL, theSize, &theTranslation); |
return theAnswer; |
} |
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