AudioOutput Class Reference

#include <libmythtv/audio/audiooutput.h>

Inheritance diagram for AudioOutput:

Collaboration diagram for AudioOutput:

Classes
class	AudioDeviceConfig

Public Types
using	ADCVect = QVector< AudioDeviceConfig >

Public Member Functions
	AudioOutput ()=default
	~AudioOutput () override
virtual void	Reconfigure (const AudioSettings &settings)=0
bool	isConfigured () const
virtual void	SetStretchFactor (float factor)
virtual float	GetStretchFactor (void) const
virtual int	GetChannels (void) const
virtual AudioFormat	GetFormat (void) const
virtual int	GetBytesPerFrame (void) const
virtual AudioOutputSettings *	GetOutputSettingsCleaned (bool digital=true)
virtual AudioOutputSettings *	GetOutputSettingsUsers (bool digital=true)
virtual bool	CanPassthrough (int samplerate, int channels, AVCodecID codec, int profile) const
virtual bool	CanDownmix (void) const
virtual void	SetEffDsp (int dsprate)=0
virtual void	Reset (void)=0
virtual bool	AddFrames (void *buffer, int frames, std::chrono::milliseconds timecode)=0
	Add frames to the audiobuffer for playback. More...
virtual bool	AddData (void *buffer, int len, std::chrono::milliseconds timecode, int frames)=0
	Add data to the audiobuffer for playback. More...
virtual bool	NeedDecodingBeforePassthrough (void) const
virtual std::chrono::milliseconds	LengthLastData (void) const
virtual void	SetTimecode (std::chrono::milliseconds timecode)=0
virtual bool	IsPaused (void) const =0
virtual void	Pause (bool paused)=0
virtual void	PauseUntilBuffered (void)=0
virtual void	Drain (void)=0
virtual std::chrono::milliseconds	GetAudiotime (void)=0
virtual std::chrono::milliseconds	GetAudioBufferedTime (void)
	report amount of audio buffered in milliseconds. More...
virtual void	SetSourceBitrate (int)
virtual void	GetBufferStatus (uint &fill, uint &total)
virtual void	bufferOutputData (bool y)=0
virtual int	readOutputData (unsigned char *read_buffer, size_t max_length)=0
virtual bool	IsUpmixing (void)
virtual bool	ToggleUpmix (void)
virtual bool	CanUpmix (void)
bool	PulseStatus (void) const
virtual bool	CanProcess (AudioFormat fmt)
virtual uint32_t	CanProcess (void)
int	DecodeAudio (AVCodecContext *ctx, uint8_t *buffer, int &data_size, const AVPacket *pkt)
	Utility routine. More...
bool	hasVisual (void)
void	addVisual (Visualization *v)
void	removeVisual (Visualization *v)
bool	playPinkNoise (char *frames, int channels, int channel, int count, int bits)
	Generates and plays pink noise from a speaker for testing. More...
virtual bool	has_optimized_SIMD ()
	Event (Type type)
	Event (std::chrono::seconds s, unsigned long w, int b, int f, int p, int c)
	Event (QString e)
	~Event () override=default
QString	errorMessage () const
const std::chrono::seconds &	elapsedSeconds () const
const unsigned long &	writtenBytes () const
const int &	bitrate () const
const int &	frequency () const
const int &	precision () const
const int &	channels () const
MythEvent *	clone (void) const override
Event &	operator= (const Event &other)=delete
	Event (Event &&)=delete
Event &	operator= (Event &&)=delete
Public Member Functions inherited from VolumeBase
	VolumeBase ()
virtual	~VolumeBase ()=default
void	SWVolume (bool set)
bool	SWVolume (void) const
virtual uint	GetCurrentVolume (void) const
virtual void	SetCurrentVolume (int value)
virtual void	AdjustCurrentVolume (int change)
virtual void	ToggleMute (void)
virtual MuteState	GetMuteState (void) const
virtual MuteState	SetMuteState (MuteState)
Public Member Functions inherited from MythObservable
	MythObservable ()
virtual	~MythObservable ()
void	addListener (QObject *listener)
	Add a listener to the observable. More...
void	removeListener (QObject *listener)
	Remove a listener to the observable. More...
void	dispatch (const MythEvent &event)
	Dispatch an event to all listeners. More...
bool	hasListeners (void)

Static Public Member Functions
static void	Cleanup (void)
static ADCVect *	GetOutputList (void)
static AudioDeviceConfig *	GetAudioDeviceConfig (QString &name, const QString &desc, bool willsuspendpa=false)
static AudioOutput *	OpenAudio (const QString &main_device, const QString &passthru_device, AudioFormat format, int channels, AVCodecID codec, int samplerate, AudioOutputSource source, bool set_initial_vol, bool passthru, int upmixer_startup=0, AudioOutputSettings *custom=nullptr)
static AudioOutput *	OpenAudio (AudioSettings &settings, bool willsuspendpa=true)
static AudioOutput *	OpenAudio (const QString &main_device, const QString &passthru_device=QString(), bool willsuspendpa=true)
Static Public Member Functions inherited from VolumeBase
static MuteState	NextMuteState (MuteState)

Static Public Attributes
static const int	kMaxSizeBuffer = 384000
	kMaxSizeBuffer is the maximum size of a buffer to be used with DecodeAudio More...
static const QEvent::Type	kPlaying {static_cast<QEvent::Type>(QEvent::registerEventType())}
static const QEvent::Type	kBuffering {static_cast<QEvent::Type>(QEvent::registerEventType())}
static const QEvent::Type	kInfo {static_cast<QEvent::Type>(QEvent::registerEventType())}
static const QEvent::Type	kPaused {static_cast<QEvent::Type>(QEvent::registerEventType())}
static const QEvent::Type	kStopped {static_cast<QEvent::Type>(QEvent::registerEventType())}
static const QEvent::Type	kError {static_cast<QEvent::Type>(QEvent::registerEventType())}

Protected Member Functions
void	dispatchError (const QString &e)
void	dispatchVisual (uchar *b, unsigned long b_len, std::chrono::milliseconds timecode, int chan, int prec)
void	prepareVisuals ()
Protected Member Functions inherited from VolumeBase
virtual int	GetVolumeChannel (int channel) const =0
virtual void	SetVolumeChannel (int channel, int volume)=0
virtual void	SetSWVolume (int new_volume, bool save)=0
virtual int	GetSWVolume (void)=0
void	UpdateVolume (void)
void	SyncVolume (void)
void	SetChannels (int new_channels)

Protected Attributes
bool	m_isConfigured {false}
bool	m_pulseWasSuspended {false}
AVFrame *	m_frame {nullptr}
std::vector< Visualization * >	m_visuals
Protected Attributes inherited from VolumeBase
bool	m_internalVol {false}
Protected Attributes inherited from MythObservable
QMutex *	m_lock {nullptr}
QSet< QObject * >	m_listeners

Private Member Functions
	Q_DECLARE_TR_FUNCTIONS (AudioOutput)
	Event (const Event &o)=default

Private Attributes
QString	m_errorMsg
std::chrono::seconds	m_elaspedSeconds {0s}
unsigned long	m_writtenBytes {0}
int	m_brate {0}
int	m_freq {0}
int	m_prec {0}
int	m_chan {0}

Detailed Description

Definition at line 30 of file audiooutput.h.

Member Typedef Documentation

ADCVect

using AudioOutput::ADCVect = QVector<AudioDeviceConfig>

Definition at line 55 of file audiooutput.h.

Constructor & Destructor Documentation

AudioOutput()

AudioOutput::AudioOutput ( )

default

~AudioOutput()

AudioOutput::~AudioOutput ( )

override

Definition at line 251 of file audiooutput.cpp.

~Event()

AudioOutput::~Event ( )

overridedefault

Member Function Documentation

AddData()

virtual bool AudioOutput::AddData ( void *  buffer, int  len, std::chrono::milliseconds  timecode, int  frames  )

pure virtual

Add data to the audiobuffer for playback.

Parameters

[in]	buffer	pointer to audio data
[in]	len	length of audio data added
[in]	timecode	timecode of the first sample added (in msec)
[in]	frames	number of frames added.

Returns

false if there wasn't enough space in audio buffer to process all the data

Implemented in AudioOutputAudioTrack, AudioOutputBase, and AudioReencodeBuffer.

Referenced by AudioPlayer::AddAudioData(), MythRAOPConnection::AudioCardLatency(), MythRAOPConnection::ProcessAudio(), and avfDecoder::run().

AddFrames()

virtual bool AudioOutput::AddFrames ( void *  buffer, int  frames, std::chrono::milliseconds  timecode  )

pure virtual

Add frames to the audiobuffer for playback.

Parameters

[in]	buffer	pointer to audio data
[in]	frames	number of frames added.
[in]	timecode	timecode of the first sample added (in msec)

Returns

false if there wasn't enough space in audio buffer to process all the data

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by playPinkNoise().

addVisual()

void AudioOutput::addVisual

(

Visualization *

v

)

Definition at line 679 of file audiooutput.cpp.

Referenced by MusicPlayer::addVisual(), AudioPlayer::addVisual(), AudioPlayer::AddVisuals(), and MusicPlayer::openOutputDevice().

bitrate()

const int & AudioOutput::bitrate ( ) const

inline

Definition at line 251 of file audiooutput.h.

bufferOutputData()

virtual void AudioOutput::bufferOutputData ( bool  y )

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

CanDownmix()

virtual bool AudioOutput::CanDownmix ( void  ) const

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 92 of file audiooutput.h.

Referenced by AudioPlayer::CanDownmix().

CanPassthrough()

bool AudioOutput::CanPassthrough ( int  samplerate, int  channels, AVCodecID  codec, int  profile  ) const

virtual

Reimplemented in AudioOutputBase, and AudioReencodeBuffer.

Definition at line 274 of file audiooutput.cpp.

Referenced by AudioPlayer::CanPassthrough().

CanProcess() [1/2]

virtual bool AudioOutput::CanProcess ( AudioFormat  fmt )

inlinevirtual

Parameters

fmt	The audio format in question. return true if class can handle AudioFormat All AudioOutput derivative must be able to handle S16

Reimplemented in AudioOutputBase.

Definition at line 173 of file audiooutput.h.

Referenced by AudioPlayer::CanProcess().

CanProcess() [2/2]

virtual uint32_t AudioOutput::CanProcess ( void  )

inlinevirtual

Returns

bitmask of all AudioFormat handled All AudioOutput derivative must be able to handle S16

Reimplemented in AudioOutputBase.

Definition at line 179 of file audiooutput.h.

Referenced by DecodeAudio().

CanUpmix()

virtual bool AudioOutput::CanUpmix ( void  )

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 165 of file audiooutput.h.

Referenced by AudioPlayer::CanUpmix().

channels()

const int & AudioOutput::channels ( ) const

inline

Definition at line 254 of file audiooutput.h.

Referenced by AudioOutputBase::CanPassthrough(), AudioOutputAudioTrack::GetOutputSettings(), AudioOutputCA::GetOutputSettings(), AudioOutputNULL::GetOutputSettings(), AudioOutputALSA::GetOutputSettings(), OpenAudio(), AudioOutputAudioTrack::OpenDevice(), playPinkNoise(), AudioOutputALSA::SetParameters(), and AudioOutputBase::SetStretchFactorLocked().

Cleanup()

void AudioOutput::Cleanup ( void  )

static

Definition at line 57 of file audiooutput.cpp.

Referenced by anonymous_namespace{mythfrontend.cpp}::cleanup().

clone()

MythEvent * AudioOutput::clone ( void  ) const

inlineoverride

Definition at line 256 of file audiooutput.h.

DecodeAudio()

int AudioOutput::DecodeAudio	(	AVCodecContext *	ctx,
		uint8_t *	buffer,
		int &	data_size,
		const AVPacket *	pkt
	)

Utility routine.

Decode an audio packet, and compact it if data is planar Return negative error code if an error occurred during decoding or the number of bytes consumed from the input AVPacket data_size contains the size of decoded data copied into buffer data decoded will be S16 samples if class instance can't handle HD audio or S16 and above otherwise. No U8 PCM format can be returned

Parameters

[in]	ctx	The current audio context information.
[in]	buffer	Destination for the copy
[out]	data_size	The number of bytes copied.
[in]	pkt	The source data packet

Definition at line 566 of file audiooutput.cpp.

Referenced by AudioPlayer::DecodeAudio(), MythRAOPConnection::decodeAudioPacket(), and avfDecoder::run().

dispatchError()

void AudioOutput::dispatchError ( const QString &  e )

protected

Definition at line 673 of file audiooutput.cpp.

Referenced by AudioOutputJACK::GetOutputSettings(), AudioOutputOSS::GetOutputSettings(), AudioOutputJACK::JackClientClose(), AudioOutputJACK::JackConnectPorts(), AudioOutputALSA::OpenDevice(), AudioOutputJACK::OpenDevice(), AudioOutputOSS::OpenDevice(), AudioOutputWin::OpenDevice(), AudioOutputBase::Reconfigure(), AudioOutputALSA::SetParameters(), AudioOutputOpenSLES::StartPlayer(), AudioOutputALSA::WriteAudio(), and AudioOutputOSS::WriteAudio().

dispatchVisual()

void AudioOutput::dispatchVisual ( uchar *  b, unsigned long  b_len, std::chrono::milliseconds  timecode, int  chan, int  prec  )

protected

Definition at line 693 of file audiooutput.cpp.

Referenced by AudioOutputBase::AddData().

Drain()

virtual void AudioOutput::Drain ( void  )

pure virtual

Implemented in AudioOutputBase, AudioOutputPulseAudio, and AudioReencodeBuffer.

Referenced by AudioPlayer::AddAudioData(), avfDecoder::run(), CdDecoder::run(), and AudioTestThread::run().

elapsedSeconds()

const std::chrono::seconds & AudioOutput::elapsedSeconds ( ) const

inline

Definition at line 249 of file audiooutput.h.

errorMessage()

QString AudioOutput::errorMessage ( ) const

inline

Definition at line 247 of file audiooutput.h.

Event() [1/5]

AudioOutput::Event ( const Event &  o )

privatedefault

Event() [2/5]

AudioOutput::Event ( Event &&  )

delete

Event() [3/5]

AudioOutput::Event ( QString  e )

inlineexplicit

Definition at line 239 of file audiooutput.h.

Event() [4/5]

AudioOutput::Event ( std::chrono::seconds  s, unsigned long  w, int  b, int  f, int  p, int  c  )

inline

Definition at line 236 of file audiooutput.h.

Event() [5/5]

AudioOutput::Event ( Type  type )

inlineexplicit

Definition at line 235 of file audiooutput.h.

Referenced by LyricsView::customEvent(), MusicCommon::customEvent(), MusicPlayer::customEvent(), and MusicPlayer::stop().

frequency()

const int & AudioOutput::frequency ( ) const

inline

Definition at line 252 of file audiooutput.h.

GetAudioBufferedTime()

virtual std::chrono::milliseconds AudioOutput::GetAudioBufferedTime ( void  )

inlinevirtual

report amount of audio buffered in milliseconds.

Reimplemented in AudioOutputBase.

Definition at line 151 of file audiooutput.h.

Referenced by MythPlayerUI::EventLoop(), AudioPlayer::GetAudioBufferedTime(), MythRAOPConnection::ProcessAudio(), MythRAOPConnection::ProcessSync(), and avfDecoder::run().

GetAudioDeviceConfig()

AudioOutput::AudioDeviceConfig * AudioOutput::GetAudioDeviceConfig ( QString &  name, const QString &  desc, bool  willsuspendpa = false  )

static

Definition at line 282 of file audiooutput.cpp.

Referenced by AudioConfigSettings::AudioRescan(), AudioConfigSettings::CheckConfiguration(), AudioConfigSettings::CheckPassthrough(), GetOutputList(), and AudioSetupWizard::Init().

GetAudiotime()

virtual std::chrono::milliseconds AudioOutput::GetAudiotime ( void  )

pure virtual

Implemented in AudioOutputBase, AudioOutputCA, and AudioReencodeBuffer.

Referenced by MythRAOPConnection::AudioCardLatency(), AudioPlayer::GetAudioTime(), MythRAOPConnection::ProcessRequest(), MythRAOPConnection::ProcessSync(), LyricsView::setLyricTime(), and MainVisual::timeout().

GetBufferStatus()

virtual void AudioOutput::GetBufferStatus ( uint &  fill, uint &  total  )

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 155 of file audiooutput.h.

Referenced by AudioPlayer::GetBufferStatus(), and CdDecoder::run().

GetBytesPerFrame()

virtual int AudioOutput::GetBytesPerFrame ( void  ) const

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 86 of file audiooutput.h.

Referenced by AudioPlayer::AddAudioData(), and MythRAOPConnection::ProcessAudio().

GetChannels()

virtual int AudioOutput::GetChannels ( void  ) const

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 84 of file audiooutput.h.

GetFormat()

virtual AudioFormat AudioOutput::GetFormat ( void  ) const

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 85 of file audiooutput.h.

GetOutputList()

AudioOutput::ADCVect * AudioOutput::GetOutputList ( void  )

static

Definition at line 394 of file audiooutput.cpp.

Referenced by AudioConfigSettings::AudioRescan(), and AudioSetupWizard::Load().

GetOutputSettingsCleaned()

AudioOutputSettings * AudioOutput::GetOutputSettingsCleaned ( bool  digital = true )

virtual

Reimplemented in AudioOutputBase.

Definition at line 264 of file audiooutput.cpp.

Referenced by GetAudioDeviceConfig().

GetOutputSettingsUsers()

AudioOutputSettings * AudioOutput::GetOutputSettingsUsers ( bool  digital = true )

virtual

Reimplemented in AudioOutputBase.

Definition at line 269 of file audiooutput.cpp.

Referenced by AudioPlayer::GetMaxChannels(), AudioPlayer::GetMaxHDRate(), and TestDigitalFeature().

GetStretchFactor()

virtual float AudioOutput::GetStretchFactor ( void  ) const

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 83 of file audiooutput.h.

has_optimized_SIMD()

virtual bool AudioOutput::has_optimized_SIMD ( )

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 218 of file audiooutput.h.

Referenced by AvFormatDecoder::DecoderWillDownmix().

hasVisual()

bool AudioOutput::hasVisual ( void  )

inline

Definition at line 203 of file audiooutput.h.

Referenced by AudioOutputBase::AddData().

isConfigured()

bool AudioOutput::isConfigured ( ) const

inline

Definition at line 80 of file audiooutput.h.

Referenced by AudioTestThread::isOutputOpen(), MythRAOPConnection::OpenAudioDevice(), MusicPlayer::openOutputDevice(), and AudioPlayer::ReinitAudio().

IsPaused()

virtual bool AudioOutput::IsPaused ( void  ) const

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by MusicPlayer::isPaused(), AudioPlayer::IsPaused(), MusicCommon::keyPressEvent(), MythRAOPConnection::ProcessAudio(), and MusicPlayer::stop().

IsUpmixing()

virtual bool AudioOutput::IsUpmixing ( void  )

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 163 of file audiooutput.h.

Referenced by AudioPlayer::IsUpmixing().

LengthLastData()

virtual std::chrono::milliseconds AudioOutput::LengthLastData ( void  ) const

inlinevirtual

Returns

the length of the last data added in millisecond. This function must be implemented if NeedDecodingBeforePassthrough returned false

Reimplemented in AudioOutputBase.

Definition at line 138 of file audiooutput.h.

Referenced by AudioPlayer::LengthLastData(), MythRAOPConnection::ProcessAudio(), and AudioTestThread::run().

NeedDecodingBeforePassthrough()

virtual bool AudioOutput::NeedDecodingBeforePassthrough ( void  ) const

inlinevirtual

Returns

true if AudioOutput class can determine the length in millisecond of native audio frames bitstreamed passed to AddData. If false, LengthLastData method must be implemented

Reimplemented in AudioOutputBase.

Definition at line 131 of file audiooutput.h.

Referenced by AudioPlayer::NeedDecodingBeforePassthrough().

OpenAudio() [1/3]

AudioOutput * AudioOutput::OpenAudio ( AudioSettings &  settings, bool  willsuspendpa = true  )

static

Definition at line 86 of file audiooutput.cpp.

OpenAudio() [2/3]

AudioOutput * AudioOutput::OpenAudio ( const QString &  main_device, const QString &  passthru_device, AudioFormat  format, int  channels, AVCodecID  codec, int  samplerate, AudioOutputSource  source, bool  set_initial_vol, bool  passthru, int  upmixer_startup = 0, AudioOutputSettings *  custom = nullptr  )

static

Definition at line 64 of file audiooutput.cpp.

Referenced by AudioTestThread::AudioTestThread(), GetAudioDeviceConfig(), OpenAudio(), MythRAOPConnection::OpenAudioDevice(), MusicPlayer::openOutputDevice(), and AudioPlayer::ReinitAudio().

OpenAudio() [3/3]

AudioOutput * AudioOutput::OpenAudio ( const QString &  main_device, const QString &  passthru_device = QString(), bool  willsuspendpa = true  )

static

Definition at line 77 of file audiooutput.cpp.

operator=() [1/2]

Event & AudioOutput::operator= ( const Event &  other )

delete

operator=() [2/2]

Event & AudioOutput::operator= ( Event &&  )

delete

Pause()

virtual void AudioOutput::Pause ( bool  paused )

pure virtual

Implemented in AudioOutputAudioTrack, AudioOutputBase, and AudioReencodeBuffer.

Referenced by AudioTestThread::AudioTestThread(), AudioPlayer::Pause(), MusicPlayer::pause(), MythRAOPConnection::ProcessAudio(), and AudioTestThread::run().

PauseUntilBuffered()

virtual void AudioOutput::PauseUntilBuffered ( void  )

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by MusicPlayer::decoderHandlerReady(), avfDecoder::initialize(), CdDecoder::initialize(), AudioPlayer::PauseAudioUntilBuffered(), and CdDecoder::seek().

playPinkNoise()

bool AudioOutput::playPinkNoise	(	char *	frames,
		int	channels,
		int	channel,
		int	count,
		int	bits
	)

Generates and plays pink noise from a speaker for testing.

Parameters

frames	The buffer where the noise will be generated. This is a parameter to allow reusing the same buffer without reallocating memory between calls.
channels	The total number of channels in the output.
channel	The channel index of the speaker to test.
count	The number of frames to generate.
bits	16 or 32; the number of bits per sample in the output.

Returns

The return value of AddFrames(), which plays the noise.

Definition at line 752 of file audiooutput.cpp.

Referenced by AudioTestThread::run().

precision()

const int & AudioOutput::precision ( ) const

inline

Definition at line 253 of file audiooutput.h.

prepareVisuals()

void AudioOutput::prepareVisuals ( )

protected

Definition at line 707 of file audiooutput.cpp.

Referenced by AudioOutputBase::Reconfigure(), and AudioOutputBase::Reset().

PulseStatus()

bool AudioOutput::PulseStatus ( void  ) const

inline

Definition at line 166 of file audiooutput.h.

Q_DECLARE_TR_FUNCTIONS()

AudioOutput::Q_DECLARE_TR_FUNCTIONS ( AudioOutput  )

private

readOutputData()

virtual int AudioOutput::readOutputData ( unsigned char *  read_buffer, size_t  max_length  )

pure virtual

Implemented in AudioReencodeBuffer, AudioOutputBase, and AudioOutputNULL.

Reconfigure()

virtual void AudioOutput::Reconfigure ( const AudioSettings &  settings )

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by avfDecoder::initialize(), CdDecoder::initialize(), and AudioPlayer::ReinitAudio().

removeVisual()

void AudioOutput::removeVisual

(

Visualization *

v

)

Definition at line 686 of file audiooutput.cpp.

Referenced by MusicPlayer::removeVisual(), AudioPlayer::removeVisual(), and AudioPlayer::RemoveVisuals().

Reset()

virtual void AudioOutput::Reset ( void  )

pure virtual

Implemented in AudioOutputBase, AudioOutputNULL, and AudioReencodeBuffer.

Referenced by MythRAOPConnection::ProcessAudio(), AudioPlayer::Reset(), MythRAOPConnection::ResetAudio(), and MusicPlayer::stop().

SetEffDsp()

virtual void AudioOutput::SetEffDsp ( int  dsprate )

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by AudioPlayer::SetEffDsp().

SetSourceBitrate()

virtual void AudioOutput::SetSourceBitrate ( int  )

inlinevirtual

Reimplemented in AudioOutputAudioTrack, and AudioOutputBase.

Definition at line 153 of file audiooutput.h.

Referenced by avfDecoder::initialize(), CdDecoder::initialize(), and AvFormatDecoder::SetupAudioStream().

SetStretchFactor()

void AudioOutput::SetStretchFactor ( float  factor )

virtual

Reimplemented in AudioOutputBase.

Definition at line 260 of file audiooutput.cpp.

Referenced by MusicPlayer::setSpeed(), and AudioPlayer::SetStretchFactor().

SetTimecode()

virtual void AudioOutput::SetTimecode ( std::chrono::milliseconds  timecode )

pure virtual

Implemented in AudioOutputBase, and AudioReencodeBuffer.

Referenced by MusicCommon::seek(), and MusicPlayer::seek().

ToggleUpmix()

virtual bool AudioOutput::ToggleUpmix ( void  )

inlinevirtual

Reimplemented in AudioOutputBase.

Definition at line 164 of file audiooutput.h.

Referenced by AudioPlayer::EnableUpmix(), and MusicCommon::toggleUpmix().

writtenBytes()

const unsigned long & AudioOutput::writtenBytes ( ) const

inline

Definition at line 250 of file audiooutput.h.

Member Data Documentation

kBuffering

const QEvent::Type AudioOutput::kBuffering {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 260 of file audiooutput.h.

kError

const QEvent::Type AudioOutput::kError {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 264 of file audiooutput.h.

kInfo

const QEvent::Type AudioOutput::kInfo {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 261 of file audiooutput.h.

kMaxSizeBuffer

const int AudioOutput::kMaxSizeBuffer = 384000

static

kMaxSizeBuffer is the maximum size of a buffer to be used with DecodeAudio

Definition at line 201 of file audiooutput.h.

Referenced by MythRAOPConnection::AudioCardLatency(), MythRAOPConnection::decodeAudioPacket(), and SPDIFEncoder::SPDIFEncoder().

kPaused

const QEvent::Type AudioOutput::kPaused {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 262 of file audiooutput.h.

kPlaying

const QEvent::Type AudioOutput::kPlaying {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 259 of file audiooutput.h.

kStopped

const QEvent::Type AudioOutput::kStopped {static_cast<QEvent::Type>(QEvent::registerEventType())}

inlinestatic

Definition at line 263 of file audiooutput.h.

m_brate

int AudioOutput::m_brate {0}

private

Definition at line 280 of file audiooutput.h.

m_chan

int AudioOutput::m_chan {0}

private

Definition at line 283 of file audiooutput.h.

m_elaspedSeconds

std::chrono::seconds AudioOutput::m_elaspedSeconds {0s}

private

Definition at line 278 of file audiooutput.h.

m_errorMsg

QString AudioOutput::m_errorMsg

private

Definition at line 276 of file audiooutput.h.

m_frame

AVFrame* AudioOutput::m_frame {nullptr}

protected

Definition at line 228 of file audiooutput.h.

Referenced by DecodeAudio(), and ~AudioOutput().

m_freq

int AudioOutput::m_freq {0}

private

Definition at line 281 of file audiooutput.h.

m_isConfigured

bool AudioOutput::m_isConfigured {false}

protected

Definition at line 226 of file audiooutput.h.

Referenced by AudioOutputBase::AddData(), AudioOutputBase::GetAudiotime(), AudioOutputBase::Reconfigure(), AudioReencodeBuffer::Reconfigure(), AudioOutputBase::SetAudiotime(), and AudioOutputBase::SetStretchFactorLocked().

m_prec

int AudioOutput::m_prec {0}

private

Definition at line 282 of file audiooutput.h.

m_pulseWasSuspended

bool AudioOutput::m_pulseWasSuspended {false}

protected

Definition at line 227 of file audiooutput.h.

Referenced by OpenAudio(), and ~AudioOutput().

m_visuals

std::vector<Visualization*> AudioOutput::m_visuals

protected

Definition at line 229 of file audiooutput.h.

Referenced by addVisual(), dispatchVisual(), prepareVisuals(), and removeVisual().

m_writtenBytes

unsigned long AudioOutput::m_writtenBytes {0}

private

Definition at line 279 of file audiooutput.h.

---

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

• mythtv/libs/libmythtv/audio/audiooutput.h
• mythtv/libs/libmythtv/audio/audiooutput.cpp