CoreAudioUtils Class Reference

#include <qcoreaudioutils_p.h>

Collaboration diagram for CoreAudioUtils:

Static Public Member Functions
static quint64	currentTime ()
static double	frequency ()
static Q_MULTIMEDIA_EXPORT QAudioFormat	toQAudioFormat (const AudioStreamBasicDescription &streamFormat)
static AudioStreamBasicDescription	toAudioStreamBasicDescription (QAudioFormat const &audioFormat)
static Q_MULTIMEDIA_EXPORT std::unique_ptr< AudioChannelLayout >	toAudioChannelLayout (const QAudioFormat &format, UInt32 *size)
static QAudioFormat::ChannelConfig	fromAudioChannelLayout (const AudioChannelLayout *layout)

Detailed Description

Definition at line 25 of file qcoreaudioutils_p.h.

Member Function Documentation

currentTime()

quint64 CoreAudioUtils::currentTime ( )

static

Definition at line 24 of file qcoreaudioutils.mm.

frequency()

double CoreAudioUtils::frequency ( )

static

Definition at line 29 of file qcoreaudioutils.mm.

References initialize().

Referenced by QDarwinAudioSink::QDarwinAudioSink().

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fromAudioChannelLayout()

QAudioFormat::ChannelConfig CoreAudioUtils::fromAudioChannelLayout ( const AudioChannelLayout *  layout )

static

Definition at line 217 of file qcoreaudioutils.mm.

References QAudioFormat::channelConfig(), QAudioFormat::ChannelConfigMono, QAudioFormat::ChannelConfigStereo, channelMap, i, layout, layoutTagMap, and qWarning.

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toAudioChannelLayout()

std::unique_ptr< AudioChannelLayout > CoreAudioUtils::toAudioChannelLayout ( const QAudioFormat &  format, UInt32 *  size  )

static

Definition at line 130 of file qcoreaudioutils.mm.

References QAudioFormat::BottomFrontCenter, QAudioFormat::BottomFrontLeft, QAudioFormat::BottomFrontRight, QAudioFormat::channelConfig(), channelConfig, QAudioFormat::ChannelConfigUnknown, channelMap, QAudioFormat::defaultChannelConfigForChannelCount(), desc, layout, and QAudioFormat::NChannelPositions.

Referenced by avfAudioSettings().

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toAudioStreamBasicDescription()

AudioStreamBasicDescription CoreAudioUtils::toAudioStreamBasicDescription ( QAudioFormat const &  audioFormat )

static

Definition at line 71 of file qcoreaudioutils.mm.

References QAudioFormat::bytesPerFrame(), QAudioFormat::bytesPerSample(), QAudioFormat::channelCount(), QAudioFormat::Float, QAudioFormat::Int16, QAudioFormat::Int32, QAudioFormat::NSampleFormats, QAudioFormat::sampleFormat(), QAudioFormat::sampleRate(), QAudioFormat::UInt8, and QAudioFormat::Unknown.

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toQAudioFormat()

QAudioFormat CoreAudioUtils::toQAudioFormat ( const AudioStreamBasicDescription &  streamFormat )

static

Definition at line 36 of file qcoreaudioutils.mm.

References QSysInfo::ByteOrder, QAudioFormat::Float, QAudioFormat::Int16, QAudioFormat::Int32, QSysInfo::LittleEndian, QAudioFormat::setChannelCount(), QAudioFormat::setSampleFormat(), QAudioFormat::setSampleRate(), QAudioFormat::UInt8, and QAudioFormat::Unknown.

Referenced by QDarwinAudioSourceBuffer::QDarwinAudioSourceBuffer(), and handleNextSampleBuffer().

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The documentation for this class was generated from the following files:

• qtmultimedia/src/multimedia/darwin/qcoreaudioutils_p.h
• qtmultimedia/src/multimedia/darwin/qcoreaudioutils.mm