This class is to act as a fake audio output device to store the data for reencoding. More...

#include <mythtranscode/audioreencodebuffer.h>

Inheritance diagram for AudioReencodeBuffer:

Collaboration diagram for AudioReencodeBuffer:

Public Member Functions
	AudioReencodeBuffer (AudioFormat audio_format, int audio_channels, bool passthru)

	~AudioReencodeBuffer () override

void	Reconfigure (const AudioSettings &settings) override
	reconfigure sound out for new params More...

void	SetEffDsp (int dsprate) override

void	Reset (void) override

bool	AddFrames (void *buffer, int frames, std::chrono::milliseconds timecode) override
	Add frames to the audiobuffer for playback. More...

bool	AddData (void *buffer, int len, std::chrono::milliseconds timecode, int frames) override
	Add data to the audiobuffer for playback. More...

AudioBuffer *	GetData (std::chrono::milliseconds time)

long long	GetSamples (std::chrono::milliseconds time)

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

bool	IsPaused (void) const override

void	Pause (bool paused) override

void	PauseUntilBuffered (void) override

void	Drain (void) override

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

int	GetVolumeChannel (int) const override

void	SetVolumeChannel (int, int) override

uint	GetCurrentVolume (void) const override

void	SetCurrentVolume (int) override

void	AdjustCurrentVolume (int) override

virtual void	SetMute (bool)

void	ToggleMute (void) override

MuteState	GetMuteState (void) const override

virtual MuteState	IterateMutedChannels (void)

void	SetSWVolume (int, bool) override

int	GetSWVolume (void) override

bool	CanPassthrough (int, int, AVCodecID, int) const override

void	bufferOutputData (bool) override

int	readOutputData (unsigned char *, size_t) override

Public Member Functions inherited from AudioOutput
	AudioOutput ()=default

	~AudioOutput () override

virtual void	Reconfigure (const AudioSettings &settings)=0

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)

QString	GetError (void) const

QString	GetWarning (void) const

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)

virtual int	DecodeAudio (AVCodecContext ctx, uint8_t buffer, int &data_size, const AVPacket *pkt)
	Utility routine. More...

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 OutputListeners
	OutputListeners ()=default

	~OutputListeners () override=default

bool	hasVisual (void)

void	addVisual (MythTV::Visual *v)

void	removeVisual (MythTV::Visual *v)

QMutex *	mutex ()

void	setBufferSize (unsigned int sz)

unsigned int	bufferSize () const

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 Attributes
int	m_channels {-1}

int	m_bytes_per_frame {-1}

int	m_eff_audiorate {-1}

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

bool	m_passthru {false}

int	m_audioFrameSize {0}

Private Attributes
bool	m_initpassthru {false}

QMutex	m_bufferMutex

QList< AudioBuffer * >	m_bufferList

AudioBuffer *	m_saveBuffer {nullptr}

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

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 Attributes inherited from AudioOutput
static const int	kMaxSizeBuffer = 384000
	kMaxSizeBuffer is the maximum size of a buffer to be used with DecodeAudio More...

Protected Member Functions inherited from AudioOutput
void	Error (const QString &msg)

void	SilentError (const QString &msg)

void	Warn (const QString &msg)

void	ClearError (void)

void	ClearWarning (void)

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 OutputListeners
void	error (const QString &e)

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

void	prepareVisuals ()

Protected Attributes inherited from AudioOutput
QString	m_lastError

QString	m_lastWarn

bool	m_pulseWasSuspended {false}

AVFrame *	m_frame {nullptr}

Protected Attributes inherited from VolumeBase
bool	m_internalVol {false}

Protected Attributes inherited from MythObservable
QMutex *	m_lock {nullptr}

QSet< QObject * >	m_listeners

Detailed Description

This class is to act as a fake audio output device to store the data for reencoding.

Definition at line 31 of file audioreencodebuffer.h.

Constructor & Destructor Documentation

◆ AudioReencodeBuffer()

AudioReencodeBuffer::AudioReencodeBuffer	(	AudioFormat	audio_format,
		int	audio_channels,
		bool	passthru
	)

Definition at line 64 of file audioreencodebuffer.cpp.

◆ ~AudioReencodeBuffer()

AudioReencodeBuffer::~AudioReencodeBuffer ( )

override

Definition at line 73 of file audioreencodebuffer.cpp.

Member Function Documentation

◆ AddData()

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

overridevirtual

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

Implements AudioOutput.

Definition at line 137 of file audioreencodebuffer.cpp.

Referenced by AddFrames().

◆ AddFrames()

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

overridevirtual

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

Implements AudioOutput.

Definition at line 121 of file audioreencodebuffer.cpp.

◆ AdjustCurrentVolume()

void AudioReencodeBuffer::AdjustCurrentVolume ( int )

inlineoverridevirtual

Reimplemented from VolumeBase.

Definition at line 56 of file audioreencodebuffer.h.

◆ bufferOutputData()

void AudioReencodeBuffer::bufferOutputData ( bool )

inlineoverridevirtual

Implements AudioOutput.

Definition at line 67 of file audioreencodebuffer.h.

◆ CanPassthrough()

bool AudioReencodeBuffer::CanPassthrough	(	int	,
		int	,
		AVCodecID	,
		int
	)		const

inlineoverridevirtual

Reimplemented from AudioOutput.

Definition at line 63 of file audioreencodebuffer.h.

◆ Drain()

void AudioReencodeBuffer::Drain ( void )

inlineoverridevirtual

Implements AudioOutput.

Definition at line 50 of file audioreencodebuffer.h.

◆ GetAudiotime()

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

inlineoverridevirtual

Implements AudioOutput.

Definition at line 51 of file audioreencodebuffer.h.

◆ GetCurrentVolume()

uint AudioReencodeBuffer::GetCurrentVolume ( void ) const

inlineoverridevirtual

Reimplemented from VolumeBase.

Definition at line 54 of file audioreencodebuffer.h.

◆ GetData()

AudioBuffer * AudioReencodeBuffer::GetData ( std::chrono::milliseconds time )

Definition at line 202 of file audioreencodebuffer.cpp.

Referenced by Transcode::TranscodeFile().

◆ GetMuteState()

MuteState AudioReencodeBuffer::GetMuteState ( void ) const

inlineoverridevirtual

Reimplemented from VolumeBase.

Definition at line 59 of file audioreencodebuffer.h.

◆ GetSamples()

long long AudioReencodeBuffer::GetSamples ( std::chrono::milliseconds time )

Definition at line 220 of file audioreencodebuffer.cpp.

Referenced by Transcode::TranscodeFile().

◆ GetSWVolume()

int AudioReencodeBuffer::GetSWVolume ( void )

inlineoverridevirtual

Implements VolumeBase.

Definition at line 62 of file audioreencodebuffer.h.

◆ GetVolumeChannel()

int AudioReencodeBuffer::GetVolumeChannel ( int ) const

inlineoverridevirtual

Implements VolumeBase.

Definition at line 52 of file audioreencodebuffer.h.

◆ IsPaused()

bool AudioReencodeBuffer::IsPaused ( void ) const

inlineoverridevirtual

Implements AudioOutput.

Definition at line 47 of file audioreencodebuffer.h.

◆ IterateMutedChannels()

virtual MuteState AudioReencodeBuffer::IterateMutedChannels ( void )

inlinevirtual

Definition at line 60 of file audioreencodebuffer.h.

◆ Pause()

void AudioReencodeBuffer::Pause ( bool paused )

inlineoverridevirtual

Implements AudioOutput.

Definition at line 48 of file audioreencodebuffer.h.

◆ PauseUntilBuffered()

void AudioReencodeBuffer::PauseUntilBuffered ( void )

inlineoverridevirtual

Implements AudioOutput.

Definition at line 49 of file audioreencodebuffer.h.

◆ readOutputData()

int AudioReencodeBuffer::readOutputData	(	unsigned char *	,
		size_t
	)

inlineoverridevirtual

Implements AudioOutput.

Definition at line 68 of file audioreencodebuffer.h.

◆ Reconfigure()

void AudioReencodeBuffer::Reconfigure ( const AudioSettings & settings )

overridevirtual

reconfigure sound out for new params

Implements AudioOutput.

Definition at line 82 of file audioreencodebuffer.cpp.

Referenced by AudioReencodeBuffer().

◆ Reset()

void AudioReencodeBuffer::Reset ( void )

overridevirtual

Implements AudioOutput.

Definition at line 101 of file audioreencodebuffer.cpp.

Referenced by AudioReencodeBuffer(), and ~AudioReencodeBuffer().

◆ SetCurrentVolume()

void AudioReencodeBuffer::SetCurrentVolume ( int )

inlineoverridevirtual

Reimplemented from VolumeBase.

Definition at line 55 of file audioreencodebuffer.h.

◆ SetEffDsp()

void AudioReencodeBuffer::SetEffDsp ( int dsprate )

overridevirtual

Parameters

dsprate is in 100 * frames/second

Implements AudioOutput.

Definition at line 96 of file audioreencodebuffer.cpp.

◆ SetMute()

virtual void AudioReencodeBuffer::SetMute ( bool )

inlinevirtual

Definition at line 57 of file audioreencodebuffer.h.

◆ SetSWVolume()

void AudioReencodeBuffer::SetSWVolume	(	int	,
		bool
	)

inlineoverridevirtual

Implements VolumeBase.

Definition at line 61 of file audioreencodebuffer.h.

◆ SetTimecode()

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

overridevirtual

Implements AudioOutput.

Definition at line 238 of file audioreencodebuffer.cpp.

◆ SetVolumeChannel()

void AudioReencodeBuffer::SetVolumeChannel	(	int	,
		int
	)

inlineoverridevirtual

Implements VolumeBase.

Definition at line 53 of file audioreencodebuffer.h.

◆ ToggleMute()

void AudioReencodeBuffer::ToggleMute ( void )

inlineoverridevirtual

Reimplemented from VolumeBase.

Definition at line 58 of file audioreencodebuffer.h.

Member Data Documentation

◆ m_audioFrameSize

int AudioReencodeBuffer::m_audioFrameSize {0}

Definition at line 76 of file audioreencodebuffer.h.

Referenced by AddData(), and Transcode::TranscodeFile().

◆ m_bufferList

QList<AudioBuffer *> AudioReencodeBuffer::m_bufferList

private

Definition at line 81 of file audioreencodebuffer.h.

Referenced by AddData(), GetData(), GetSamples(), and Reset().

◆ m_bufferMutex

QMutex AudioReencodeBuffer::m_bufferMutex

private

Definition at line 80 of file audioreencodebuffer.h.

Referenced by AddData(), GetData(), GetSamples(), and Reset().

◆ m_bytes_per_frame

int AudioReencodeBuffer::m_bytes_per_frame {-1}

Definition at line 72 of file audioreencodebuffer.h.

Referenced by AddData(), AddFrames(), Reconfigure(), and Transcode::TranscodeFile().

◆ m_channels

int AudioReencodeBuffer::m_channels {-1}

Definition at line 71 of file audioreencodebuffer.h.

Referenced by Reconfigure(), and Transcode::TranscodeFile().

◆ m_eff_audiorate

int AudioReencodeBuffer::m_eff_audiorate {-1}

Definition at line 73 of file audioreencodebuffer.h.

Referenced by AddData(), Reconfigure(), SetEffDsp(), and Transcode::TranscodeFile().

◆ m_initpassthru

bool AudioReencodeBuffer::m_initpassthru {false}

private

Definition at line 79 of file audioreencodebuffer.h.

Referenced by CanPassthrough().

◆ m_last_audiotime

std::chrono::milliseconds AudioReencodeBuffer::m_last_audiotime {0ms}

Definition at line 74 of file audioreencodebuffer.h.

Referenced by AddData(), GetAudiotime(), and SetTimecode().

◆ m_passthru

bool AudioReencodeBuffer::m_passthru {false}

Definition at line 75 of file audioreencodebuffer.h.

Referenced by Reconfigure(), and Transcode::TranscodeFile().

◆ m_saveBuffer

AudioBuffer* AudioReencodeBuffer::m_saveBuffer {nullptr}

private

Definition at line 82 of file audioreencodebuffer.h.

Referenced by AddData(), and ~AudioReencodeBuffer().

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

mythtv/programs/mythtranscode/audioreencodebuffer.h
mythtv/programs/mythtranscode/audioreencodebuffer.cpp

Public Member Functions

Public Attributes

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AudioReencodeBuffer()

◆ ~AudioReencodeBuffer()

Member Function Documentation

◆ AddData()

◆ AddFrames()

◆ AdjustCurrentVolume()

◆ bufferOutputData()

◆ CanPassthrough()

◆ Drain()

◆ GetAudiotime()

◆ GetCurrentVolume()

◆ GetData()

◆ GetMuteState()

◆ GetSamples()

◆ GetSWVolume()

◆ GetVolumeChannel()

◆ IsPaused()

◆ IterateMutedChannels()

◆ Pause()

◆ PauseUntilBuffered()

◆ readOutputData()

◆ Reconfigure()

◆ Reset()

◆ SetCurrentVolume()

◆ SetEffDsp()

◆ SetMute()

◆ SetSWVolume()

◆ SetTimecode()

◆ SetVolumeChannel()

◆ ToggleMute()

Member Data Documentation

◆ m_audioFrameSize

◆ m_bufferList

◆ m_bufferMutex

◆ m_bytes_per_frame

◆ m_channels

◆ m_eff_audiorate

◆ m_initpassthru

◆ m_last_audiotime

◆ m_passthru

◆ m_saveBuffer