QWindowsAudioUtils Namespace Reference

Classes
struct	AudioClientCreationResult
struct	AudioClientDevicePeriod

Typedefs
using	reference_time = std::chrono::duration<long long, std::ratio<1, 10000000>>

Enumerations
enum class	AudioEndpointRole

Functions
QAudioFormat::ChannelConfig	maskToChannelConfig (UINT32 mask, int count)
static UINT32	channelConfigToMask (QAudioFormat::ChannelConfig config)
bool	formatToWaveFormatExtensible (const QAudioFormat &format, WAVEFORMATEXTENSIBLE &wfx)
std::optional< WAVEFORMATEXTENSIBLE >	toWaveFormatExtensible (const QAudioFormat &format)
QAudioFormat	waveFormatExToFormat (const WAVEFORMATEX &in)
QAudioFormat	mediaTypeToFormat (IMFMediaType *mediaType)
ComPtr< IMFMediaType >	formatToMediaType (QWindowsMediaFoundation &wmf, const QAudioFormat &format)
std::optional< quint32 >	getBufferSizeInFrames (const ComPtr< IAudioClient3 > &client)
std::optional< AudioClientDevicePeriod >	getDevicePeriod (const ComPtr< IAudioClient3 > &client)
QString	audioClientErrorString (HRESULT hr)
bool	audioClientSetRole (const ComPtr< IAudioClient3 > &client, AudioEndpointRole role)
std::optional< AudioClientCreationResult >	createAudioClient (const ComPtr< IMMDevice > &device, const QAudioFormat &format, std::optional< qsizetype > hardwareBufferFrames, const QUniqueWin32NullHandle &wasapiEventHandle, std::optional< AudioEndpointRole > role)
bool	audioClientStart (const ComPtr< IAudioClient3 > &client)
bool	audioClientStop (const ComPtr< IAudioClient3 > &client)
bool	audioClientReset (const ComPtr< IAudioClient3 > &client)
bool	audioClientSetRate (const ComPtr< IAudioClient3 > &client, int rate)
void	setMCSSForPeriodSize (reference_time periodSize)

Variables
static constexpr QAudioFormat::AudioChannelPosition	channelFormatMap []

Typedef Documentation

reference_time

using QWindowsAudioUtils::reference_time = std::chrono::duration<long long, std::ratio<1, 10000000>>

Definition at line 44 of file qwindowsaudioutils_p.h.

Enumeration Type Documentation

AudioEndpointRole

enum class QtMultimediaPrivate::AudioEndpointRole : uint8_t

strong

Definition at line 45 of file qaudiosystem_p.h.

Function Documentation

audioClientErrorString()

QString QWindowsAudioUtils::audioClientErrorString

(

HRESULT

hr

)

Definition at line 248 of file qwindowsaudioutils.cpp.

audioClientReset()

bool QWindowsAudioUtils::audioClientReset

(

const ComPtr< IAudioClient3 > &

client

)

Definition at line 455 of file qwindowsaudioutils.cpp.

audioClientSetRate()

bool QWindowsAudioUtils::audioClientSetRate	(	const ComPtr< IAudioClient3 > &	client,
		int	rate )

Definition at line 465 of file qwindowsaudioutils.cpp.

audioClientSetRole()

bool QWindowsAudioUtils::audioClientSetRole	(	const ComPtr< IAudioClient3 > &	client,
		AudioEndpointRole	role )

Definition at line 333 of file qwindowsaudioutils.cpp.

audioClientStart()

bool QWindowsAudioUtils::audioClientStart

(

const ComPtr< IAudioClient3 > &

client

)

Definition at line 435 of file qwindowsaudioutils.cpp.

audioClientStop()

bool QWindowsAudioUtils::audioClientStop

(

const ComPtr< IAudioClient3 > &

client

)

Definition at line 445 of file qwindowsaudioutils.cpp.

channelConfigToMask()

UINT32 QWindowsAudioUtils::channelConfigToMask ( QAudioFormat::ChannelConfig config )

static

Definition at line 69 of file qwindowsaudioutils.cpp.

createAudioClient()

std::optional< AudioClientCreationResult > QWindowsAudioUtils::createAudioClient	(	const ComPtr< IMMDevice > &	device,
		const QAudioFormat &	format,
		std::optional< qsizetype >	hardwareBufferFrames,
		const QUniqueWin32NullHandle &	wasapiEventHandle,
		std::optional< AudioEndpointRole >	role = {} )

Definition at line 366 of file qwindowsaudioutils.cpp.

formatToMediaType()

ComPtr< IMFMediaType > QWindowsAudioUtils::formatToMediaType	(	QWindowsMediaFoundation &	wmf,
		const QAudioFormat &	format )

Definition at line 187 of file qwindowsaudioutils.cpp.

formatToWaveFormatExtensible()

bool QWindowsAudioUtils::formatToWaveFormatExtensible	(	const QAudioFormat &	format,
		WAVEFORMATEXTENSIBLE &	wfx )

Definition at line 81 of file qwindowsaudioutils.cpp.

getBufferSizeInFrames()

std::optional< quint32 > QWindowsAudioUtils::getBufferSizeInFrames

(

const ComPtr< IAudioClient3 > &

client

)

Definition at line 217 of file qwindowsaudioutils.cpp.

getDevicePeriod()

std::optional< AudioClientDevicePeriod > QWindowsAudioUtils::getDevicePeriod

(

const ComPtr< IAudioClient3 > &

client

)

Definition at line 231 of file qwindowsaudioutils.cpp.

maskToChannelConfig()

QAudioFormat::ChannelConfig QWindowsAudioUtils::maskToChannelConfig	(	UINT32	mask,
		int	count )

Definition at line 53 of file qwindowsaudioutils.cpp.

mediaTypeToFormat()

QAudioFormat QWindowsAudioUtils::mediaTypeToFormat

(

IMFMediaType *

mediaType

)

Definition at line 147 of file qwindowsaudioutils.cpp.

setMCSSForPeriodSize()

void QWindowsAudioUtils::setMCSSForPeriodSize

(

reference_time

periodSize

)

Definition at line 485 of file qwindowsaudioutils.cpp.

toWaveFormatExtensible()

std::optional< WAVEFORMATEXTENSIBLE > QWindowsAudioUtils::toWaveFormatExtensible

(

const QAudioFormat &

format

)

Definition at line 111 of file qwindowsaudioutils.cpp.

waveFormatExToFormat()

QAudioFormat QWindowsAudioUtils::waveFormatExToFormat

(

const WAVEFORMATEX &

in

)

Definition at line 120 of file qwindowsaudioutils.cpp.

Variable Documentation

channelFormatMap

constexpr QAudioFormat::AudioChannelPosition QWindowsAudioUtils::channelFormatMap

staticconstexpr

Initial value:

=
        { QAudioFormat::FrontLeft         
        , QAudioFormat::FrontRight        
        , QAudioFormat::FrontCenter       
        , QAudioFormat::LFE               
        , QAudioFormat::BackLeft          
        , QAudioFormat::BackRight         
        , QAudioFormat::FrontLeftOfCenter 
        , QAudioFormat::FrontRightOfCenter
        , QAudioFormat::BackCenter        
        , QAudioFormat::SideLeft          
        , QAudioFormat::SideRight         
        , QAudioFormat::TopCenter         
        , QAudioFormat::TopFrontLeft      
        , QAudioFormat::TopFrontCenter    
        , QAudioFormat::TopFrontRight     
        , QAudioFormat::TopBackLeft       
        , QAudioFormat::TopBackCenter     
        , QAudioFormat::TopBackRight      
        }

Definition at line 32 of file qwindowsaudioutils.cpp.