#include <libmythtv/audio/audiooutputbase.h>

Inheritance diagram for AudioOutputBase:

Collaboration diagram for AudioOutputBase:

Public Member Functions
	AudioOutputBase (const AudioSettings &settings)

	~AudioOutputBase () override
	Destructor. More...

AudioOutputSettings *	GetOutputSettingsCleaned (bool digital=true) override
	Returns capabilities supported by the audio device amended to take into account the digital audio options (AC3, DTS, E-AC3 and TrueHD) More...

AudioOutputSettings *	GetOutputSettingsUsers (bool digital=false) override
	Returns capabilities supported by the audio device amended to take into account the digital audio options (AC3, DTS, E-AC3 and TrueHD) as well as the user settings. More...

void	Reconfigure (const AudioSettings &settings) override
	(Re)Configure AudioOutputBase More...

void	SetEffDsp (int dsprate) override
	Set the effective DSP rate. More...

void	SetStretchFactor (float factor) override
	Set the timestretch factor. More...

float	GetStretchFactor (void) const override
	Get the timetretch factor. More...

int	GetChannels (void) const override

AudioFormat	GetFormat (void) const override

int	GetBytesPerFrame (void) const override

bool	CanPassthrough (int samplerate, int channels, AVCodecID codec, int profile) const override
	Test if we can output digital audio and if sample rate is supported. More...

bool	CanDownmix (void) const override

bool	IsUpmixing (void) override
	Source is currently being upmixed. More...

bool	ToggleUpmix (void) override
	Toggle between stereo and upmixed 5.1 if the source material is stereo. More...

bool	CanUpmix (void) override
	Upmixing of the current source is available if requested. More...

bool	CanProcess (AudioFormat) override

uint32_t	CanProcess (void) override

void	Reset (void) override
	Reset the audiobuffer, timecode and mythmusic visualisation. More...

void	SetSWVolume (int new_volume, bool save) override
	Set the volume for software volume control. More...

int	GetSWVolume (void) override
	Get the volume for software volume control. More...

bool	AddFrames (void *buffer, int frames, std::chrono::milliseconds timecode) override
	Add frames to the audiobuffer and perform any required processing. More...

bool	AddData (void *buffer, int len, std::chrono::milliseconds timecode, int frames) override
	Add data to the audiobuffer and perform any required processing. More...

bool	NeedDecodingBeforePassthrough () const override

std::chrono::milliseconds	LengthLastData (void) const override

void	SetTimecode (std::chrono::milliseconds timecode) override
	Set the timecode of the samples most recently added to the audiobuffer. More...

bool	IsPaused (void) const override

void	Pause (bool paused) override

void	PauseUntilBuffered (void) override

void	Drain (void) override
	Block until all available frames have been written to the device. More...

std::chrono::milliseconds	GetAudiotime (void) override
	Calculate the timecode of the samples that are about to become audible. More...

std::chrono::milliseconds	GetAudioBufferedTime (void) override
	Get the difference in timecode between the samples that are about to become audible and the samples most recently added to the audiobuffer, i.e. More...

virtual void	Status (void)
	Report status via an AudioOutput::Event. More...

void	SetSourceBitrate (int rate) override
	Set the bitrate of the source material, reported in periodic AudioOutput::Events. More...

void	GetBufferStatus (uint &fill, uint &total) override
	Fill in the number of bytes in the audiobuffer and the total size of the audiobuffer. More...

void	bufferOutputData (bool y) override

int	readOutputData (unsigned char *read_buffer, size_t max_length) override

bool	has_optimized_SIMD () override
	Returns true if the processor supports MythTV's optimized SIMD for AudioConvert. More...

Public Member Functions inherited from AudioOutput
	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)

Public Member Functions inherited from MThread
	MThread (const QString &objectName)
	Standard constructor. More...

	MThread (const QString &objectName, QRunnable *runnable)
	Use this constructor if you want the default run() method to run the QRunnable's run() method instead of entering the Qt event loop. More...

virtual	~MThread ()

	MThread (const MThread &)=delete

MThread &	operator= (const MThread &)=delete

void	RunProlog (void)
	Sets up a thread, call this if you reimplement run(). More...

void	RunEpilog (void)
	Cleans up a thread's resources, call this if you reimplement run(). More...

QThread *	qthread (void)
	Returns the thread, this will always return the same pointer no matter how often you restart the thread. More...

void	setObjectName (const QString &name)

QString	objectName (void) const

void	setPriority (QThread::Priority priority)

QThread::Priority	priority (void) const

bool	isFinished (void) const

bool	isRunning (void) const

void	setStackSize (uint stackSize)

uint	stackSize (void) const

void	exit (int retcode=0)
	Use this to exit from the thread if you are using a Qt event loop. More...

void	start (QThread::Priority p=QThread::InheritPriority)
	Tell MThread to start running the thread in the near future. More...

void	terminate (void)
	Kill a thread unsafely. More...

void	quit (void)
	calls exit(0) More...

bool	wait (std::chrono::milliseconds time=std::chrono::milliseconds::max())
	Wait for the MThread to exit, with a maximum timeout. More...

Static Public Member Functions
static const char *	quality_string (int q)

Static Public Member Functions inherited from AudioOutput
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 Member Functions inherited from MThread
static void	ThreadSetup (const QString &name)
	This is to be called on startup in those few threads that haven't been ported to MThread. More...

static void	ThreadCleanup (void)
	This is to be called on exit in those few threads that haven't been ported to MThread. More...

static void	Cleanup (void)
	This will print out all the running threads, call exit(1) on each and then wait up to 5 seconds total for all the threads to exit. More...

static void	GetAllThreadNames (QStringList &list)

static void	GetAllRunningThreadNames (QStringList &list)

Static Public Attributes
static const uint	kAudioSRCInputSize = 16384

static const uint	kAudioRingBufferSize = 10239936U
	Audio Buffer Size – should be divisible by 32,24,16,12,10,8,6,4,2.. More...

Static Public Attributes inherited from AudioOutput
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 Types
enum	: std::int8_t { QUALITY_DISABLED = -1 , QUALITY_LOW = 0 , QUALITY_MEDIUM = 1 , QUALITY_HIGH = 2 }

Protected Member Functions
void	InitSettings (const AudioSettings &settings)

virtual bool	OpenDevice (void)=0

virtual void	CloseDevice (void)=0

virtual void	WriteAudio (unsigned char *aubuf, int size)=0

virtual int	GetBufferedOnSoundcard (void) const =0
	Return the size in bytes of frames currently in the audio buffer adjusted with the audio playback latency. More...

virtual AudioOutputSettings *	GetOutputSettings (bool)

void	KillAudio (void)
	Kill the output thread and cleanup. More...

virtual bool	StartOutputThread (void)

virtual void	StopOutputThread (void)

int	GetAudioData (uchar buffer, int buf_size, bool full_buffer, volatile uint local_raud=nullptr)
	Copy frames from the audiobuffer into the buffer provided. More...

void	OutputAudioLoop (void)
	Run in the output thread, write frames to the output device as they become available and there's space in the device buffer to write them. More...

void	run () override
	Main routine for the output thread. More...

int	CheckFreeSpace (int &frames)
	Check that there's enough space in the audiobuffer to write the provided number of frames. More...

int	audiolen () const
	Get the number of bytes in the audiobuffer. More...

int	audiofree () const
	Get the free space in the audiobuffer in bytes. More...

int	audioready () const
	Get the scaled number of bytes in the audiobuffer, i.e. More...

void	SetStretchFactorLocked (float factor)
	Set the timestretch factor. More...

std::chrono::milliseconds	GetBaseAudBufTimeCode () const

bool	usesSpdif () const

Protected Member Functions inherited from AudioOutput
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 Member Functions inherited from MThread
virtual void	run (void)
	Runs the Qt event loop unless we have a QRunnable, in which case we run the runnable run instead. More...

int	exec (void)
	Enters the qt event loop. call exit or quit to exit thread. More...

Protected Attributes
int	m_channels {-1}

AVCodecID	m_codec {AV_CODEC_ID_NONE}

int	m_bytesPerFrame {0}

int	m_outputBytesPerFrame {0}

AudioFormat	m_format {FORMAT_NONE}

AudioFormat	m_outputFormat {FORMAT_NONE}

int	m_sampleRate {-1}

int	m_effDsp {0}

int	m_fragmentSize {0}

long	m_soundcardBufferSize {0}

QString	m_mainDevice

QString	m_passthruDevice

bool	m_discreteDigital {false}

bool	m_passthru {false}

bool	m_enc {false}

bool	m_reEnc {false}

float	m_stretchFactor {1.0F}

int	m_effStretchFactor {100000}

AudioOutputSource	m_source

bool	m_killAudio {false}

bool	m_pauseAudio {false}

bool	m_actuallyPaused {false}

bool	m_wasPaused {false}

bool	m_unpauseWhenReady {false}

bool	m_setInitialVol

bool	m_bufferOutputDataForUse {false}

int	m_configuredChannels {0}

int	m_maxChannels {0}

int	m_srcQuality {QUALITY_MEDIUM}

long	m_sourceBitRate {-1}

int	m_sourceSampleRate {0}

Protected Attributes inherited from AudioOutput
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

Protected Attributes inherited from MThread
MThreadInternal *	m_thread {nullptr}

QRunnable *	m_runnable {nullptr}

bool	m_prologExecuted {true}

bool	m_epilogExecuted {true}

Private Member Functions
bool	SetupPassthrough (AVCodecID codec, int codec_profile, int &samplerate_tmp, int &channels_tmp)

AudioOutputSettings *	OutputSettings (bool digital=true)

int	CopyWithUpmix (char *buffer, int frames, uint &org_waud)
	Copy frames into the audiobuffer, upmixing en route if necessary. More...

void	SetAudiotime (int frames, std::chrono::milliseconds timecode)
	Set the timecode of the top of the ringbuffer Exclude all other processing elements as they dont vary between AddData calls. More...

Private Attributes
AudioOutputSettings *	m_outputSettingsRaw {nullptr}

AudioOutputSettings *	m_outputSettings {nullptr}

AudioOutputSettings *	m_outputSettingsDigitalRaw {nullptr}

AudioOutputSettings *	m_outputSettingsDigital {nullptr}

bool	m_needResampler {false}

SRC_STATE *	m_srcCtx {nullptr}

soundtouch::SoundTouch *	m_pSoundStretch {nullptr}

AudioOutputDigitalEncoder *	m_encoder {nullptr}

FreeSurround *	m_upmixer {nullptr}

int	m_sourceChannels {-1}

int	m_sourceBytesPerFrame {0}

bool	m_upmixDefault {false}

bool	m_needsUpmix {false}

bool	m_needsDownmix {false}

int	m_surroundMode {QUALITY_LOW}

float	m_oldStretchFactor {1.0F}

int	m_volume {80}

QString	m_volumeControl

bool	m_processing {false}

int64_t	m_framesBuffered {0}

bool	m_audioThreadExists {false}

QMutex	m_audioBufLock
	Writes to the audiobuffer, reconfigures and audiobuffer resets can only take place while holding this lock. More...

QMutex	m_avsyncLock
	must hold avsync_lock to read or write 'audiotime' and 'audiotime_updated' More...

std::chrono::milliseconds	m_audioTime {0ms}
	timecode of audio leaving the soundcard (same units as timecodes) More...

volatile uint	m_raud {0}
	Audio circular buffer. More...

volatile uint	m_waud {0}

std::chrono::milliseconds	m_audbufTimecode {0ms}
	timecode of audio most recently placed into buffer More...

AsyncLooseLock	m_resetActive

QMutex	m_killAudioLock

std::chrono::seconds	m_currentSeconds {-1s}

float *	m_srcIn

SRC_DATA	m_srcData {}

uint	m_memoryCorruptionTest0 {0xdeadbeef}

std::array< float, kAudioSRCInputSize >	m_srcInBuf {}

uint	m_memoryCorruptionTest1 {0xdeadbeef}

float *	m_srcOut {nullptr}

int	m_kAudioSRCOutputSize {0}

uint	m_memoryCorruptionTest2 {0xdeadbeef}

std::array< uchar, kAudioRingBufferSize >	m_audioBuffer {0}
	main audio buffer More...

uint	m_memoryCorruptionTest3 {0xdeadbeef}

std::chrono::milliseconds	m_lengthLastData {0ms}

bool	m_usesSpdif {true}

SPDIFEncoder *	m_spdifEnc {nullptr}

bool	m_forcedProcessing {false}

int	m_previousBpf {0}

Additional Inherited Members
Public Types inherited from AudioOutput
using	ADCVect = QVector< AudioDeviceConfig >

Static Protected Member Functions inherited from MThread
static void	setTerminationEnabled (bool enabled=true)

static void	usleep (std::chrono::microseconds time)

template<typename R , typename P >
static std::enable_if_t< std::chrono::treat_as_floating_point< R >::value, void >	usleep (std::chrono::duration< R, P > time)

Detailed Description

Definition at line 41 of file audiooutputbase.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum : std::int8_t

protected

Enumerator
QUALITY_DISABLED
QUALITY_LOW
QUALITY_MEDIUM
QUALITY_HIGH

Definition at line 200 of file audiooutputbase.h.

Constructor & Destructor Documentation

◆ AudioOutputBase()

AudioOutputBase::AudioOutputBase ( const AudioSettings & settings )

explicit

Definition at line 391 of file audiooutputbase.cpp.

◆ ~AudioOutputBase()

AudioOutputBase::~AudioOutputBase ( )

override

Destructor.

You must kill the output thread via KillAudio() prior to destruction

Definition at line 419 of file audiooutputbase.cpp.

Member Function Documentation

◆ AddData()

bool AudioOutputBase::AddData	(	void *	in_buffer,
		int	in_len,
		std::chrono::milliseconds	timecode,
		int	frames
	)

overridevirtual

Add data to the audiobuffer and perform any required processing.

Returns false if there's not enough space right now

Implements AudioOutput.

Definition at line 1654 of file audiooutputbase.cpp.

Referenced by AudioOutputAudioTrack::AddData(), and AddFrames().

◆ AddFrames()

bool AudioOutputBase::AddFrames	(	void *	in_buffer,
		int	in_frames,
		std::chrono::milliseconds	timecode
	)

overridevirtual

Add frames to the audiobuffer and perform any required processing.

Returns false if there's not enough space right now

Implements AudioOutput.

Definition at line 1642 of file audiooutputbase.cpp.

◆ audiofree()

int AudioOutputBase::audiofree ( ) const

protected

Get the free space in the audiobuffer in bytes.

Definition at line 1329 of file audiooutputbase.cpp.

Referenced by AddData(), CheckFreeSpace(), and GetBufferStatus().

◆ audiolen()

int AudioOutputBase::audiolen ( ) const

inlineprotected

Get the number of bytes in the audiobuffer.

Definition at line 1319 of file audiooutputbase.cpp.

Referenced by audiofree(), and audioready().

◆ audioready()

int AudioOutputBase::audioready ( ) const

protected

Get the scaled number of bytes in the audiobuffer, i.e.

the number of samples * the output bytes per sample

This value can differ from that returned by audiolen if samples are being converted to floats and the output sample format is not 32 bits

Definition at line 1344 of file audiooutputbase.cpp.

Referenced by AddData(), Drain(), GetAudioData(), GetAudiotime(), AudioOutputCA::GetAudiotime(), and OutputAudioLoop().

◆ bufferOutputData()

void AudioOutputBase::bufferOutputData ( bool y )

inlineoverridevirtual

Implements AudioOutput.

Definition at line 108 of file audiooutputbase.h.

◆ CanDownmix()

bool AudioOutputBase::CanDownmix ( void ) const

inlineoverridevirtual

Reimplemented from AudioOutput.

Definition at line 67 of file audiooutputbase.h.

◆ CanPassthrough()

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

overridevirtual

Test if we can output digital audio and if sample rate is supported.

Reimplemented from AudioOutput.

Definition at line 538 of file audiooutputbase.cpp.

◆ CanProcess() [1/2]

bool AudioOutputBase::CanProcess ( AudioFormat fmt )

inlineoverridevirtual

Parameters

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

Reimplemented from AudioOutput.

Definition at line 71 of file audiooutputbase.h.

◆ CanProcess() [2/2]

uint32_t AudioOutputBase::CanProcess ( void )

inlineoverridevirtual

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

Reimplemented from AudioOutput.

Definition at line 72 of file audiooutputbase.h.

◆ CanUpmix()

bool AudioOutputBase::CanUpmix ( void )

overridevirtual

Upmixing of the current source is available if requested.

Reimplemented from AudioOutput.

Definition at line 729 of file audiooutputbase.cpp.

◆ CheckFreeSpace()

int AudioOutputBase::CheckFreeSpace ( int & frames )

protected

Check that there's enough space in the audiobuffer to write the provided number of frames.

If there is not enough space, set 'frames' to the number that will fit

Returns the number of bytes that the frames will take up

Definition at line 1521 of file audiooutputbase.cpp.

Referenced by AddData(), and CopyWithUpmix().

◆ CloseDevice()

virtual void AudioOutputBase::CloseDevice ( void )

protectedpure virtual

Implemented in AudioOutputALSA, AudioOutputAudioTrack, AudioOutputCA, AudioOutputDX, AudioOutputJACK, AudioOutputNULL, AudioOutputOpenSLES, AudioOutputOSS, AudioOutputPulseAudio, and AudioOutputWin.

Referenced by KillAudio().

◆ CopyWithUpmix()

int AudioOutputBase::CopyWithUpmix	(	char *	buffer,
		int	frames,
		uint &	org_waud
	)

private

Copy frames into the audiobuffer, upmixing en route if necessary.

Returns the number of frames written, which may be less than requested if the upmixer buffered some (or all) of them

Definition at line 1556 of file audiooutputbase.cpp.

Referenced by AddData().

◆ Drain()

void AudioOutputBase::Drain ( void )

overridevirtual

Block until all available frames have been written to the device.

Implements AudioOutput.

Reimplemented in AudioOutputPulseAudio.

Definition at line 2163 of file audiooutputbase.cpp.

Referenced by AudioOutputPulseAudio::Drain().

◆ GetAudioBufferedTime()

std::chrono::milliseconds AudioOutputBase::GetAudioBufferedTime ( void )

overridevirtual

Get the difference in timecode between the samples that are about to become audible and the samples most recently added to the audiobuffer, i.e.

the time in ms representing the sum total of buffered samples

Reimplemented from AudioOutput.

Definition at line 1486 of file audiooutputbase.cpp.

◆ GetAudioData()

int AudioOutputBase::GetAudioData	(	uchar *	buffer,
		int	size,
		bool	full_buffer,
		volatile uint *	local_raud = `nullptr`
	)

protected

Copy frames from the audiobuffer into the buffer provided.

If 'full_buffer' is true we copy either 'size' bytes (if available) or nothing. Otherwise, we'll copy less than 'size' bytes if that's all that's available. Returns the number of bytes copied.

Definition at line 2076 of file audiooutputbase.cpp.

Referenced by AudioOutputJACK::JackCallback(), OutputAudioLoop(), and AudioOutputCA::RenderAudio().

◆ GetAudiotime()

std::chrono::milliseconds AudioOutputBase::GetAudiotime ( void )

overridevirtual

Calculate the timecode of the samples that are about to become audible.

Implements AudioOutput.

Reimplemented in AudioOutputCA.

Definition at line 1354 of file audiooutputbase.cpp.

Referenced by GetAudioBufferedTime(), OutputAudioLoop(), SetAudiotime(), and Status().

◆ GetBaseAudBufTimeCode()

std::chrono::milliseconds AudioOutputBase::GetBaseAudBufTimeCode ( ) const

inlineprotected

Definition at line 159 of file audiooutputbase.h.

Referenced by AudioOutputCA::GetAudiotime().

◆ GetBufferedOnSoundcard()

virtual int AudioOutputBase::GetBufferedOnSoundcard ( void ) const

protectedpure virtual

Return the size in bytes of frames currently in the audio buffer adjusted with the audio playback latency.

Implemented in AudioOutputALSA, AudioOutputAudioTrack, AudioOutputCA, AudioOutputDX, AudioOutputJACK, AudioOutputNULL, AudioOutputOpenSLES, AudioOutputOSS, AudioOutputPulseAudio, and AudioOutputWin.

Referenced by GetAudiotime().

◆ GetBufferStatus()

void AudioOutputBase::GetBufferStatus	(	uint &	fill,
		uint &	total
	)

overridevirtual

Fill in the number of bytes in the audiobuffer and the total size of the audiobuffer.

Reimplemented from AudioOutput.

Definition at line 1972 of file audiooutputbase.cpp.

◆ GetBytesPerFrame()

int AudioOutputBase::GetBytesPerFrame ( void ) const

inlineoverridevirtual

Reimplemented from AudioOutput.

Definition at line 62 of file audiooutputbase.h.

◆ GetChannels()

int AudioOutputBase::GetChannels ( void ) const

inlineoverridevirtual

Reimplemented from AudioOutput.

Definition at line 60 of file audiooutputbase.h.

◆ GetFormat()

AudioFormat AudioOutputBase::GetFormat ( void ) const

inlineoverridevirtual

Reimplemented from AudioOutput.

Definition at line 61 of file audiooutputbase.h.

◆ GetOutputSettings()

virtual AudioOutputSettings * AudioOutputBase::GetOutputSettings ( bool )

inlineprotectedvirtual

Reimplemented in AudioOutputAudioTrack, AudioOutputCA, AudioOutputJACK, AudioOutputNULL, AudioOutputOpenSLES, AudioOutputOSS, AudioOutputPulseAudio, AudioOutputWin, AudioOutputALSA, and AudioOutputDX.

Definition at line 134 of file audiooutputbase.h.

Referenced by GetOutputSettingsCleaned().

◆ GetOutputSettingsCleaned()

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

overridevirtual

Returns capabilities supported by the audio device amended to take into account the digital audio options (AC3, DTS, E-AC3 and TrueHD)

Reimplemented from AudioOutput.

Definition at line 481 of file audiooutputbase.cpp.

Referenced by GetOutputSettingsUsers().

◆ GetOutputSettingsUsers()

AudioOutputSettings * AudioOutputBase::GetOutputSettingsUsers ( bool digital = false )

overridevirtual

Returns capabilities supported by the audio device amended to take into account the digital audio options (AC3, DTS, E-AC3 and TrueHD) as well as the user settings.

Reimplemented from AudioOutput.

Definition at line 512 of file audiooutputbase.cpp.

Referenced by InitSettings().

◆ GetStretchFactor()

float AudioOutputBase::GetStretchFactor ( void ) const

overridevirtual

Get the timetretch factor.

Reimplemented from AudioOutput.

Definition at line 695 of file audiooutputbase.cpp.

◆ GetSWVolume()

int AudioOutputBase::GetSWVolume ( void )

overridevirtual

Get the volume for software volume control.

Implements VolumeBase.

Definition at line 1508 of file audiooutputbase.cpp.

◆ has_optimized_SIMD()

bool AudioOutputBase::has_optimized_SIMD ( )

overridevirtual

Returns true if the processor supports MythTV's optimized SIMD for AudioConvert.

Currently, only SSE2 is implemented.

Reimplemented from AudioOutput.

Definition at line 273 of file audiooutputbase.cpp.

◆ InitSettings()

void AudioOutputBase::InitSettings ( const AudioSettings & settings )

protected

Definition at line 445 of file audiooutputbase.cpp.

Referenced by AudioOutputALSA::AudioOutputALSA(), AudioOutputAudioTrack::AudioOutputAudioTrack(), AudioOutputCA::AudioOutputCA(), AudioOutputDX::AudioOutputDX(), AudioOutputJACK::AudioOutputJACK(), AudioOutputNULL::AudioOutputNULL(), AudioOutputOpenSLES::AudioOutputOpenSLES(), AudioOutputOSS::AudioOutputOSS(), AudioOutputPulseAudio::AudioOutputPulseAudio(), and AudioOutputWin::AudioOutputWin().

◆ IsPaused()

bool AudioOutputBase::IsPaused ( void ) const

inlineoverridevirtual

Implements AudioOutput.

Definition at line 90 of file audiooutputbase.h.

◆ IsUpmixing()

bool AudioOutputBase::IsUpmixing ( void )

overridevirtual

Source is currently being upmixed.

Reimplemented from AudioOutput.

Definition at line 703 of file audiooutputbase.cpp.

Referenced by ToggleUpmix().

◆ KillAudio()

void AudioOutputBase::KillAudio ( void )

protected

Kill the output thread and cleanup.

Definition at line 1196 of file audiooutputbase.cpp.

Referenced by Reconfigure(), AudioOutputALSA::~AudioOutputALSA(), AudioOutputAudioTrack::~AudioOutputAudioTrack(), AudioOutputCA::~AudioOutputCA(), AudioOutputDX::~AudioOutputDX(), AudioOutputJACK::~AudioOutputJACK(), AudioOutputNULL::~AudioOutputNULL(), AudioOutputOpenSLES::~AudioOutputOpenSLES(), AudioOutputOSS::~AudioOutputOSS(), AudioOutputPulseAudio::~AudioOutputPulseAudio(), and AudioOutputWin::~AudioOutputWin().

◆ LengthLastData()

std::chrono::milliseconds AudioOutputBase::LengthLastData ( void ) const

inlineoverridevirtual

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

Reimplemented from AudioOutput.

Definition at line 87 of file audiooutputbase.h.

◆ NeedDecodingBeforePassthrough()

bool AudioOutputBase::NeedDecodingBeforePassthrough ( void ) const

inlineoverridevirtual

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 from AudioOutput.

Definition at line 86 of file audiooutputbase.h.

◆ OpenDevice()

virtual bool AudioOutputBase::OpenDevice ( void )

protectedpure virtual

Implemented in AudioOutputALSA, AudioOutputAudioTrack, AudioOutputCA, AudioOutputDX, AudioOutputJACK, AudioOutputNULL, AudioOutputOpenSLES, AudioOutputOSS, AudioOutputPulseAudio, and AudioOutputWin.

Referenced by Reconfigure().

◆ OutputAudioLoop()

void AudioOutputBase::OutputAudioLoop ( void )

protected

Run in the output thread, write frames to the output device as they become available and there's space in the device buffer to write them.

Definition at line 1983 of file audiooutputbase.cpp.

Referenced by run().

◆ OutputSettings()

AudioOutputSettings * AudioOutputBase::OutputSettings ( bool digital = true )

private

Definition at line 786 of file audiooutputbase.cpp.

Referenced by Reconfigure().

◆ Pause()

void AudioOutputBase::Pause ( bool paused )

overridevirtual

Implements AudioOutput.

Definition at line 1238 of file audiooutputbase.cpp.

Referenced by AddData(), AudioOutputAudioTrack::Pause(), and PauseUntilBuffered().

◆ PauseUntilBuffered()

void AudioOutputBase::PauseUntilBuffered ( void )

overridevirtual

Implements AudioOutput.

Definition at line 1250 of file audiooutputbase.cpp.

◆ quality_string()

const char * AudioOutputBase::quality_string ( int q )

static

Definition at line 379 of file audiooutputbase.cpp.

Referenced by AudioOutputBase(), and Reconfigure().

◆ readOutputData()

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

overridevirtual

Implements AudioOutput.

Reimplemented in AudioOutputNULL.

Definition at line 2188 of file audiooutputbase.cpp.

◆ Reconfigure()

void AudioOutputBase::Reconfigure ( const AudioSettings & orig_settings )

overridevirtual

(Re)Configure AudioOutputBase

Must be called from concrete subclasses

Implements AudioOutput.

Definition at line 798 of file audiooutputbase.cpp.

Referenced by AudioOutputALSA::AudioOutputALSA(), AudioOutputAudioTrack::AudioOutputAudioTrack(), AudioOutputCA::AudioOutputCA(), AudioOutputDX::AudioOutputDX(), AudioOutputJACK::AudioOutputJACK(), AudioOutputNULL::AudioOutputNULL(), AudioOutputOpenSLES::AudioOutputOpenSLES(), AudioOutputOSS::AudioOutputOSS(), AudioOutputPulseAudio::AudioOutputPulseAudio(), AudioOutputWin::AudioOutputWin(), and ToggleUpmix().

◆ Reset()

void AudioOutputBase::Reset ( void )

overridevirtual

Reset the audiobuffer, timecode and mythmusic visualisation.

Implements AudioOutput.

Reimplemented in AudioOutputNULL.

Definition at line 1260 of file audiooutputbase.cpp.

Referenced by PauseUntilBuffered(), and AudioOutputNULL::Reset().

◆ run()

void AudioOutputBase::run ( void )

overrideprotectedvirtual

Main routine for the output thread.

Reimplemented from MThread.

Definition at line 2179 of file audiooutputbase.cpp.

◆ SetAudiotime()

void AudioOutputBase::SetAudiotime	(	int	frames,
		std::chrono::milliseconds	timecode
	)

private

Set the timecode of the top of the ringbuffer Exclude all other processing elements as they dont vary between AddData calls.

Definition at line 1436 of file audiooutputbase.cpp.

Referenced by AddData().

◆ SetEffDsp()

void AudioOutputBase::SetEffDsp ( int dsprate )

overridevirtual

Set the effective DSP rate.

Equal to 100 * samples per second NuppelVideo sets this every sync frame to achieve av sync

Implements AudioOutput.

Definition at line 1310 of file audiooutputbase.cpp.

◆ SetSourceBitrate()

void AudioOutputBase::SetSourceBitrate ( int rate )

overridevirtual

Set the bitrate of the source material, reported in periodic AudioOutput::Events.

Reimplemented from AudioOutput.

Definition at line 600 of file audiooutputbase.cpp.

Referenced by AudioOutputAudioTrack::SetSourceBitrate().

◆ SetStretchFactor()

void AudioOutputBase::SetStretchFactor ( float factor )

overridevirtual

Set the timestretch factor.

Reimplemented from AudioOutput.

Definition at line 686 of file audiooutputbase.cpp.

◆ SetStretchFactorLocked()

void AudioOutputBase::SetStretchFactorLocked ( float lstretchfactor )

protected

Set the timestretch factor.

You must hold the audio_buflock to call this safely

Definition at line 611 of file audiooutputbase.cpp.

Referenced by Reconfigure(), and SetStretchFactor().

◆ SetSWVolume()

void AudioOutputBase::SetSWVolume	(	int	new_volume,
		bool	save
	)

overridevirtual

Set the volume for software volume control.

Implements VolumeBase.

Definition at line 1498 of file audiooutputbase.cpp.

◆ SetTimecode()

void AudioOutputBase::SetTimecode ( std::chrono::milliseconds timecode )

overridevirtual

Set the timecode of the samples most recently added to the audiobuffer.

Used by mythmusic for seeking since it doesn't provide timecodes to AddData()

Implements AudioOutput.

Definition at line 1298 of file audiooutputbase.cpp.

◆ SetupPassthrough()

bool AudioOutputBase::SetupPassthrough	(	AVCodecID	codec,
		int	codec_profile,
		int &	samplerate_tmp,
		int &	channels_tmp
	)

private

Definition at line 738 of file audiooutputbase.cpp.

Referenced by Reconfigure().

◆ StartOutputThread()

bool AudioOutputBase::StartOutputThread ( void )

protectedvirtual

Reimplemented in AudioOutputAudioTrack, AudioOutputCA, and AudioOutputJACK.

Definition at line 1172 of file audiooutputbase.cpp.

Referenced by Reconfigure(), and AudioOutputAudioTrack::StartOutputThread().

◆ Status()

void AudioOutputBase::Status ( void )

virtual

Report status via an AudioOutput::Event.

Definition at line 1948 of file audiooutputbase.cpp.

Referenced by AudioOutputJACK::JackCallback(), and OutputAudioLoop().

◆ StopOutputThread()

void AudioOutputBase::StopOutputThread ( void )

protectedvirtual

Reimplemented in AudioOutputAudioTrack, AudioOutputCA, and AudioOutputJACK.

Definition at line 1184 of file audiooutputbase.cpp.

Referenced by KillAudio(), and AudioOutputAudioTrack::StopOutputThread().

◆ ToggleUpmix()

bool AudioOutputBase::ToggleUpmix ( void )

overridevirtual

Toggle between stereo and upmixed 5.1 if the source material is stereo.

Reimplemented from AudioOutput.

Definition at line 711 of file audiooutputbase.cpp.

◆ usesSpdif()

bool AudioOutputBase::usesSpdif ( ) const

inlineprotected

Definition at line 162 of file audiooutputbase.h.

Referenced by GetAudiotime().

◆ WriteAudio()

virtual void AudioOutputBase::WriteAudio	(	unsigned char *	aubuf,
		int	size
	)

protectedpure virtual

Implemented in AudioOutputALSA, AudioOutputAudioTrack, AudioOutputCA, AudioOutputJACK, AudioOutputNULL, AudioOutputOpenSLES, AudioOutputOSS, AudioOutputPulseAudio, AudioOutputWin, and AudioOutputDX.

Referenced by OutputAudioLoop().

Member Data Documentation

◆ kAudioRingBufferSize

const uint AudioOutputBase::kAudioRingBufferSize = 10239936U

static

Audio Buffer Size – should be divisible by 32,24,16,12,10,8,6,4,2..

Definition at line 116 of file audiooutputbase.h.

Referenced by AddData(), audiofree(), audiolen(), CopyWithUpmix(), GetAudioData(), and GetBufferStatus().

◆ kAudioSRCInputSize

const uint AudioOutputBase::kAudioSRCInputSize = 16384

static

Definition at line 112 of file audiooutputbase.h.

Referenced by AddData(), and Reconfigure().

◆ m_actuallyPaused

bool AudioOutputBase::m_actuallyPaused {false}

protected

Definition at line 192 of file audiooutputbase.h.

Referenced by IsPaused(), AudioOutputJACK::JackCallback(), OutputAudioLoop(), Pause(), Reconfigure(), AudioOutputCA::RenderAudio(), SetStretchFactorLocked(), and AudioOutputAudioTrack::WriteAudio().

◆ m_audbufTimecode

std::chrono::milliseconds AudioOutputBase::m_audbufTimecode {0ms}

private

timecode of audio most recently placed into buffer

Definition at line 268 of file audiooutputbase.h.

Referenced by GetAudioBufferedTime(), GetAudiotime(), GetBaseAudBufTimeCode(), Reconfigure(), Reset(), SetAudiotime(), SetStretchFactorLocked(), and SetTimecode().

◆ m_audioBuffer

std::array<uchar,kAudioRingBufferSize> AudioOutputBase::m_audioBuffer {0}

private

main audio buffer

Definition at line 288 of file audiooutputbase.h.

Referenced by Reset().

◆ m_audioBufLock

QMutex AudioOutputBase::m_audioBufLock

private

Writes to the audiobuffer, reconfigures and audiobuffer resets can only take place while holding this lock.

Definition at line 247 of file audiooutputbase.h.

Referenced by AddData(), Drain(), KillAudio(), Reconfigure(), Reset(), and SetStretchFactor().

◆ m_audioThreadExists

bool AudioOutputBase::m_audioThreadExists {false}

private

Definition at line 241 of file audiooutputbase.h.

Referenced by StartOutputThread(), and StopOutputThread().

◆ m_audioTime

std::chrono::milliseconds AudioOutputBase::m_audioTime {0ms}

private

timecode of audio leaving the soundcard (same units as timecodes)

Definition at line 258 of file audiooutputbase.h.

Referenced by GetAudiotime(), OutputAudioLoop(), Reconfigure(), Reset(), SetAudiotime(), SetStretchFactorLocked(), and SetTimecode().

◆ m_avsyncLock

QMutex AudioOutputBase::m_avsyncLock

private

must hold avsync_lock to read or write 'audiotime' and 'audiotime_updated'

Definition at line 253 of file audiooutputbase.h.

Referenced by GetAudiotime(), Reconfigure(), and Reset().

◆ m_bufferOutputDataForUse

bool AudioOutputBase::m_bufferOutputDataForUse {false}

protected

Definition at line 196 of file audiooutputbase.h.

Referenced by bufferOutputData(), AudioOutputNULL::GetBufferedOnSoundcard(), AudioOutputNULL::Reset(), and AudioOutputNULL::WriteAudio().

◆ m_bytesPerFrame

int AudioOutputBase::m_bytesPerFrame {0}

protected

Definition at line 168 of file audiooutputbase.h.

Referenced by AddData(), audioready(), CheckFreeSpace(), CopyWithUpmix(), GetAudiotime(), Reconfigure(), SetStretchFactorLocked(), and AudioOutputOpenSLES::StartPlayer().

◆ m_channels

int AudioOutputBase::m_channels {-1}

protected

Definition at line 166 of file audiooutputbase.h.

Referenced by AudioOutputPulseAudio::ConnectPlaybackStream(), AudioOutputJACK::DeinterleaveAudio(), GetChannels(), AudioOutputJACK::JackCallback(), AudioOutputJACK::JackConnectPorts(), AudioOutputJACK::JackGraphOrderCallback(), CoreAudioData::OpenAnalog(), AudioOutputALSA::OpenDevice(), AudioOutputAudioTrack::OpenDevice(), AudioOutputJACK::OpenDevice(), AudioOutputOSS::OpenDevice(), AudioOutputPulseAudio::OpenDevice(), AudioOutputWin::OpenDevice(), AudioOutputALSA::OpenMixer(), Reconfigure(), AudioOutputCA::RenderAudio(), and AudioOutputALSA::WriteAudio().

◆ m_codec

AVCodecID AudioOutputBase::m_codec {AV_CODEC_ID_NONE}

protected

Definition at line 167 of file audiooutputbase.h.

Referenced by AudioOutputAudioTrack::OpenDevice(), Reconfigure(), and ToggleUpmix().

◆ m_configuredChannels

int AudioOutputBase::m_configuredChannels {0}

protected

Definition at line 198 of file audiooutputbase.h.

Referenced by AddData(), GetAudioData(), InitSettings(), Reconfigure(), and SetStretchFactorLocked().

◆ m_currentSeconds

std::chrono::seconds AudioOutputBase::m_currentSeconds {-1s}

private

Definition at line 273 of file audiooutputbase.h.

Referenced by Reconfigure(), Reset(), and Status().

◆ m_discreteDigital

bool AudioOutputBase::m_discreteDigital {false}

protected

Definition at line 179 of file audiooutputbase.h.

Referenced by AudioOutputALSA::AudioOutputALSA(), AudioOutputDX::AudioOutputDX(), AudioOutputALSA::GetOutputSettings(), GetOutputSettingsCleaned(), GetOutputSettingsUsers(), and AudioOutputALSA::TryOpenDevice().

◆ m_effDsp

int AudioOutputBase::m_effDsp {0}

protected

Definition at line 173 of file audiooutputbase.h.

Referenced by GetAudiotime(), AudioOutputCA::GetAudiotime(), Reconfigure(), AudioOutputCA::RenderAudio(), SetAudiotime(), and SetEffDsp().

◆ m_effStretchFactor

int AudioOutputBase::m_effStretchFactor {100000}

protected

Definition at line 186 of file audiooutputbase.h.

Referenced by GetAudiotime(), SetAudiotime(), and SetStretchFactorLocked().

◆ m_enc

bool AudioOutputBase::m_enc {false}

protected

Definition at line 182 of file audiooutputbase.h.

Referenced by audioready(), GetAudioData(), GetAudiotime(), KillAudio(), AudioOutputALSA::OpenDevice(), AudioOutputAudioTrack::OpenDevice(), AudioOutputCA::OpenDevice(), AudioOutputWin::OpenDevice(), Reconfigure(), and AudioOutputAudioTrack::SetSourceBitrate().

◆ m_encoder

AudioOutputDigitalEncoder* AudioOutputBase::m_encoder {nullptr}

private

Definition at line 224 of file audiooutputbase.h.

Referenced by AddData(), KillAudio(), Reconfigure(), Reset(), and SetAudiotime().

◆ m_forcedProcessing

bool AudioOutputBase::m_forcedProcessing {false}

private

Definition at line 297 of file audiooutputbase.h.

Referenced by Reconfigure(), and SetStretchFactorLocked().

◆ m_format

AudioFormat AudioOutputBase::m_format {FORMAT_NONE}

protected

Definition at line 170 of file audiooutputbase.h.

Referenced by AddData(), CopyWithUpmix(), GetFormat(), Reconfigure(), Status(), and ToggleUpmix().

◆ m_fragmentSize

◆ m_framesBuffered

int64_t AudioOutputBase::m_framesBuffered {0}

private

Definition at line 239 of file audiooutputbase.h.

Referenced by AddData(), Reconfigure(), Reset(), SetStretchFactorLocked(), and SetTimecode().

◆ m_kAudioSRCOutputSize

int AudioOutputBase::m_kAudioSRCOutputSize {0}

private

Definition at line 283 of file audiooutputbase.h.

Referenced by Reconfigure(), and ~AudioOutputBase().

◆ m_killAudio

bool AudioOutputBase::m_killAudio {false}

protected

Definition at line 189 of file audiooutputbase.h.

Referenced by AudioOutputJACK::JackCallback(), KillAudio(), OutputAudioLoop(), Reconfigure(), AudioOutputCA::RenderAudio(), and ~AudioOutputBase().

◆ m_killAudioLock

QMutex AudioOutputBase::m_killAudioLock

private

Definition at line 271 of file audiooutputbase.h.

Referenced by KillAudio().

◆ m_lengthLastData

std::chrono::milliseconds AudioOutputBase::m_lengthLastData {0ms}

private

Definition at line 290 of file audiooutputbase.h.

Referenced by AddData(), and LengthLastData().

◆ m_mainDevice

QString AudioOutputBase::m_mainDevice

protected

Definition at line 177 of file audiooutputbase.h.

Referenced by AudioOutputALSA::AudioOutputALSA(), AudioOutputBase(), AudioOutputCA::AudioOutputCA(), AudioOutputDX::AudioOutputDX(), AudioOutputPulseAudio::ChooseHost(), AudioOutputOSS::GetOutputSettings(), AudioOutputALSA::GetOutputSettings(), AudioOutputDXPrivate::InitDirectSound(), AudioOutputJACK::JackGetPorts(), AudioOutputJACK::OpenDevice(), AudioOutputOSS::OpenDevice(), Reconfigure(), AudioOutputALSA::TryOpenDevice(), and AudioOutputOSS::WriteAudio().

◆ m_maxChannels

int AudioOutputBase::m_maxChannels {0}

protected

Definition at line 199 of file audiooutputbase.h.

Referenced by CanPassthrough(), InitSettings(), Reconfigure(), and ToggleUpmix().

◆ m_memoryCorruptionTest0

uint AudioOutputBase::m_memoryCorruptionTest0 {0xdeadbeef}

private

Definition at line 279 of file audiooutputbase.h.

Referenced by ~AudioOutputBase().

◆ m_memoryCorruptionTest1

uint AudioOutputBase::m_memoryCorruptionTest1 {0xdeadbeef}

private

Definition at line 281 of file audiooutputbase.h.

Referenced by ~AudioOutputBase().

◆ m_memoryCorruptionTest2

uint AudioOutputBase::m_memoryCorruptionTest2 {0xdeadbeef}

private

Definition at line 284 of file audiooutputbase.h.

Referenced by ~AudioOutputBase().

◆ m_memoryCorruptionTest3

uint AudioOutputBase::m_memoryCorruptionTest3 {0xdeadbeef}

private

Definition at line 289 of file audiooutputbase.h.

Referenced by ~AudioOutputBase().

◆ m_needResampler

bool AudioOutputBase::m_needResampler {false}

private

Definition at line 221 of file audiooutputbase.h.

Referenced by AddData(), KillAudio(), and Reconfigure().

◆ m_needsDownmix

bool AudioOutputBase::m_needsDownmix {false}

private

Definition at line 231 of file audiooutputbase.h.

Referenced by AddData(), Reconfigure(), and SetStretchFactorLocked().

◆ m_needsUpmix

bool AudioOutputBase::m_needsUpmix {false}

private

Definition at line 230 of file audiooutputbase.h.

Referenced by AddData(), CopyWithUpmix(), IsUpmixing(), KillAudio(), Reconfigure(), Reset(), SetAudiotime(), and SetStretchFactorLocked().

◆ m_oldStretchFactor

float AudioOutputBase::m_oldStretchFactor {1.0F}

private

Definition at line 233 of file audiooutputbase.h.

Referenced by KillAudio(), and Reconfigure().

◆ m_outputBytesPerFrame

◆ m_outputFormat

AudioFormat AudioOutputBase::m_outputFormat {FORMAT_NONE}

protected

Definition at line 171 of file audiooutputbase.h.

Referenced by GetAudioData(), CoreAudioData::OpenAnalog(), AudioOutputALSA::OpenDevice(), AudioOutputAudioTrack::OpenDevice(), AudioOutputOSS::OpenDevice(), AudioOutputPulseAudio::OpenDevice(), AudioOutputWin::OpenDevice(), Reconfigure(), AudioOutputCA::RenderAudio(), AudioOutputOpenSLES::StartPlayer(), and AudioOutputALSA::WriteAudio().

◆ m_outputSettings

AudioOutputSettings* AudioOutputBase::m_outputSettings {nullptr}

private

Definition at line 218 of file audiooutputbase.h.

Referenced by GetOutputSettingsUsers(), InitSettings(), OutputSettings(), Reconfigure(), and ~AudioOutputBase().

◆ m_outputSettingsDigital

AudioOutputSettings* AudioOutputBase::m_outputSettingsDigital {nullptr}

private

Definition at line 220 of file audiooutputbase.h.

Referenced by CanPassthrough(), GetOutputSettingsUsers(), InitSettings(), OutputSettings(), Reconfigure(), SetupPassthrough(), and ~AudioOutputBase().

◆ m_outputSettingsDigitalRaw

AudioOutputSettings* AudioOutputBase::m_outputSettingsDigitalRaw {nullptr}

private

Definition at line 219 of file audiooutputbase.h.

Referenced by GetOutputSettingsCleaned(), and ~AudioOutputBase().

◆ m_outputSettingsRaw

AudioOutputSettings* AudioOutputBase::m_outputSettingsRaw {nullptr}

private

Definition at line 217 of file audiooutputbase.h.

Referenced by GetOutputSettingsCleaned(), and ~AudioOutputBase().

◆ m_passthru

bool AudioOutputBase::m_passthru {false}

protected

Definition at line 181 of file audiooutputbase.h.

Referenced by AddData(), audioready(), GetAudioData(), GetAudiotime(), AudioOutputALSA::OpenDevice(), AudioOutputAudioTrack::OpenDevice(), AudioOutputCA::OpenDevice(), AudioOutputOSS::OpenDevice(), AudioOutputWin::OpenDevice(), Reconfigure(), AudioOutputCA::RenderAudio(), AudioOutputAudioTrack::SetSourceBitrate(), ToggleUpmix(), and AudioOutputALSA::WriteAudio().

◆ m_passthruDevice

QString AudioOutputBase::m_passthruDevice

protected

Definition at line 178 of file audiooutputbase.h.

Referenced by AudioOutputALSA::AudioOutputALSA(), AudioOutputDX::AudioOutputDX(), AudioOutputALSA::GetOutputSettings(), AudioOutputDXPrivate::InitDirectSound(), and AudioOutputALSA::TryOpenDevice().

◆ m_pauseAudio

bool AudioOutputBase::m_pauseAudio {false}

protected

Definition at line 191 of file audiooutputbase.h.

Referenced by AddData(), Drain(), AudioOutputJACK::JackCallback(), OutputAudioLoop(), Pause(), Reconfigure(), AudioOutputCA::RenderAudio(), Reset(), and SetStretchFactorLocked().

◆ m_previousBpf

int AudioOutputBase::m_previousBpf {0}

private

Definition at line 298 of file audiooutputbase.h.

Referenced by SetStretchFactorLocked().

◆ m_processing

bool AudioOutputBase::m_processing {false}

private

Definition at line 237 of file audiooutputbase.h.

Referenced by AddData(), CopyWithUpmix(), GetAudioData(), Reconfigure(), and SetStretchFactorLocked().

◆ m_pSoundStretch

soundtouch::SoundTouch* AudioOutputBase::m_pSoundStretch {nullptr}

private

Definition at line 223 of file audiooutputbase.h.

Referenced by AddData(), KillAudio(), Reset(), SetAudiotime(), and SetStretchFactorLocked().

◆ m_raud

volatile uint AudioOutputBase::m_raud {0}

private

Audio circular buffer.

Definition at line 263 of file audiooutputbase.h.

Referenced by audiolen(), Drain(), GetAudioData(), OutputAudioLoop(), Reconfigure(), Reset(), and SetStretchFactorLocked().

◆ m_reEnc

bool AudioOutputBase::m_reEnc {false}

protected

Definition at line 183 of file audiooutputbase.h.

Referenced by Reconfigure().

◆ m_resetActive

AsyncLooseLock AudioOutputBase::m_resetActive

private

Definition at line 269 of file audiooutputbase.h.

Referenced by OutputAudioLoop(), Reconfigure(), Reset(), and SetStretchFactorLocked().

◆ m_sampleRate

◆ m_setInitialVol

bool AudioOutputBase::m_setInitialVol

protected

Definition at line 195 of file audiooutputbase.h.

Referenced by AudioOutputPulseAudio::ConnectPlaybackStream(), AudioOutputCA::OpenDevice(), AudioOutputALSA::OpenMixer(), Reconfigure(), AudioOutputJACK::VolumeInit(), and AudioOutputOSS::VolumeInit().

◆ m_soundcardBufferSize

long AudioOutputBase::m_soundcardBufferSize {0}

protected

Definition at line 175 of file audiooutputbase.h.

Referenced by AudioOutputPulseAudio::ConnectPlaybackStream(), AudioOutputDXPrivate::FillBuffer(), AudioOutputAudioTrack::OpenDevice(), AudioOutputNULL::OpenDevice(), AudioOutputOpenSLES::OpenDevice(), AudioOutputOSS::OpenDevice(), AudioOutputWin::OpenDevice(), and AudioOutputALSA::SetParameters().

◆ m_source

AudioOutputSource AudioOutputBase::m_source

protected

Definition at line 187 of file audiooutputbase.h.

Referenced by Reconfigure().

◆ m_sourceBitRate

long AudioOutputBase::m_sourceBitRate {-1}

protected

Definition at line 208 of file audiooutputbase.h.

Referenced by GetAudiotime(), AudioOutputAudioTrack::OpenDevice(), Reconfigure(), AudioOutputAudioTrack::SetSourceBitrate(), SetSourceBitrate(), and Status().

◆ m_sourceBytesPerFrame

int AudioOutputBase::m_sourceBytesPerFrame {0}

private

Definition at line 228 of file audiooutputbase.h.

Referenced by AddData(), AddFrames(), GetBytesPerFrame(), and Reconfigure().

◆ m_sourceChannels

int AudioOutputBase::m_sourceChannels {-1}

private

Definition at line 227 of file audiooutputbase.h.

Referenced by AddData(), CopyWithUpmix(), Reconfigure(), SetStretchFactorLocked(), Status(), and ToggleUpmix().

◆ m_sourceSampleRate

int AudioOutputBase::m_sourceSampleRate {0}

protected

Definition at line 209 of file audiooutputbase.h.

Referenced by AddData(), GetAudiotime(), AudioOutputAudioTrack::OpenDevice(), Reconfigure(), AudioOutputAudioTrack::SetSourceBitrate(), SetTimecode(), Status(), and ToggleUpmix().

◆ m_spdifEnc

SPDIFEncoder* AudioOutputBase::m_spdifEnc {nullptr}

private

Definition at line 294 of file audiooutputbase.h.

Referenced by AddData(), and SetupPassthrough().

◆ m_srcCtx

SRC_STATE* AudioOutputBase::m_srcCtx {nullptr}

private

Definition at line 222 of file audiooutputbase.h.

Referenced by AddData(), CheckFreeSpace(), KillAudio(), and Reconfigure().

◆ m_srcData

SRC_DATA AudioOutputBase::m_srcData {}

private

Definition at line 278 of file audiooutputbase.h.

Referenced by AddData(), and Reconfigure().

◆ m_srcIn

float* AudioOutputBase::m_srcIn

private

Definition at line 275 of file audiooutputbase.h.

Referenced by AddData(), AudioOutputBase(), and Reconfigure().

◆ m_srcInBuf

std::array<float,kAudioSRCInputSize> AudioOutputBase::m_srcInBuf {}

private

Definition at line 280 of file audiooutputbase.h.

Referenced by AddData(), and AudioOutputBase().

◆ m_srcOut

float* AudioOutputBase::m_srcOut {nullptr}

private

Definition at line 282 of file audiooutputbase.h.

Referenced by AddData(), Reconfigure(), and ~AudioOutputBase().

◆ m_srcQuality

int AudioOutputBase::m_srcQuality {QUALITY_MEDIUM}

protected

Definition at line 207 of file audiooutputbase.h.

Referenced by AudioOutputBase(), Reconfigure(), and AudioOutputALSA::SetParameters().

◆ m_stretchFactor

float AudioOutputBase::m_stretchFactor {1.0F}

protected

Definition at line 185 of file audiooutputbase.h.

Referenced by AddData(), AudioOutputCA::GetAudiotime(), GetStretchFactor(), KillAudio(), Reconfigure(), and SetStretchFactorLocked().

◆ m_surroundMode

int AudioOutputBase::m_surroundMode {QUALITY_LOW}

private

Definition at line 232 of file audiooutputbase.h.

Referenced by Reconfigure().

◆ m_unpauseWhenReady

bool AudioOutputBase::m_unpauseWhenReady {false}

protected

Definition at line 194 of file audiooutputbase.h.

Referenced by AddData(), Pause(), PauseUntilBuffered(), Reconfigure(), Reset(), and SetStretchFactorLocked().

◆ m_upmixDefault

bool AudioOutputBase::m_upmixDefault {false}

private

Definition at line 229 of file audiooutputbase.h.

Referenced by CanPassthrough(), InitSettings(), Reconfigure(), and ToggleUpmix().

◆ m_upmixer

FreeSurround* AudioOutputBase::m_upmixer {nullptr}

private

Definition at line 225 of file audiooutputbase.h.

Referenced by AddData(), CopyWithUpmix(), IsUpmixing(), KillAudio(), Reconfigure(), Reset(), and SetAudiotime().

◆ m_usesSpdif

bool AudioOutputBase::m_usesSpdif {true}

private

Definition at line 293 of file audiooutputbase.h.

Referenced by AudioOutputBase(), SetupPassthrough(), and usesSpdif().

◆ m_volume

int AudioOutputBase::m_volume {80}

private

Definition at line 234 of file audiooutputbase.h.

Referenced by AddData(), GetSWVolume(), Reconfigure(), and SetSWVolume().

◆ m_volumeControl

QString AudioOutputBase::m_volumeControl

private

Definition at line 235 of file audiooutputbase.h.

Referenced by Reconfigure(), and SetSWVolume().

◆ m_wasPaused

bool AudioOutputBase::m_wasPaused {false}

protected

Definition at line 193 of file audiooutputbase.h.

Referenced by AudioOutputJACK::JackCallback(), OutputAudioLoop(), Pause(), Reconfigure(), Reset(), and SetStretchFactorLocked().

◆ m_waud

volatile uint AudioOutputBase::m_waud {0}

private

Definition at line 264 of file audiooutputbase.h.

Referenced by AddData(), audiolen(), Drain(), Reconfigure(), Reset(), and SetStretchFactorLocked().

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

mythtv/libs/libmythtv/audio/audiooutputbase.h
mythtv/libs/libmythtv/audio/audiooutputbase.cpp

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ AudioOutputBase()

◆ ~AudioOutputBase()

Member Function Documentation

◆ AddData()

◆ AddFrames()

◆ audiofree()

◆ audiolen()

◆ audioready()

◆ bufferOutputData()

◆ CanDownmix()

◆ CanPassthrough()

◆ CanProcess() [1/2]

◆ CanProcess() [2/2]

◆ CanUpmix()

◆ CheckFreeSpace()

◆ CloseDevice()

◆ CopyWithUpmix()

◆ Drain()

◆ GetAudioBufferedTime()

◆ GetAudioData()

◆ GetAudiotime()

◆ GetBaseAudBufTimeCode()

◆ GetBufferedOnSoundcard()

◆ GetBufferStatus()

◆ GetBytesPerFrame()

◆ GetChannels()

◆ GetFormat()

◆ GetOutputSettings()

◆ GetOutputSettingsCleaned()

◆ GetOutputSettingsUsers()

◆ GetStretchFactor()

◆ GetSWVolume()

◆ has_optimized_SIMD()

◆ InitSettings()

◆ IsPaused()

◆ IsUpmixing()

◆ KillAudio()

◆ LengthLastData()

◆ NeedDecodingBeforePassthrough()

◆ OpenDevice()

◆ OutputAudioLoop()

◆ OutputSettings()

◆ Pause()

◆ PauseUntilBuffered()

◆ quality_string()

◆ readOutputData()

◆ Reconfigure()

◆ Reset()

◆ run()

◆ SetAudiotime()

◆ SetEffDsp()

◆ SetSourceBitrate()

◆ SetStretchFactor()

◆ SetStretchFactorLocked()

◆ SetSWVolume()

◆ SetTimecode()

◆ SetupPassthrough()

◆ StartOutputThread()

◆ Status()

◆ StopOutputThread()

◆ ToggleUpmix()

◆ usesSpdif()

◆ WriteAudio()

Member Data Documentation

◆ kAudioRingBufferSize

◆ kAudioSRCInputSize

◆ m_actuallyPaused