This class implements an Audio class for Android. More...

#include <AAudio.h>

Inheritance diagram for Ocean::Media::Android::AAudio:

Public Member Functions
MediumRef	clone () const override
	Clones this movie medium and returns a new independent instance of this medium.

bool	start () override
	Starts the medium.

bool	pause () override
	Pauses the medium.

bool	stop () override
	Stops the medium.

bool	isStarted () const override
	Returns whether the medium is started currently.

double	duration () const override
	Returns the duration of the finite medium.

double	normalDuration () const override
	Returns the duration without speed consideration.

double	position () const override
	Returns the recent position of the finite medium.

bool	setPosition (const double position) override
	Sets the recent position of the finite medium.

float	speed () const override
	Returns the speed of the finite medium.

bool	setSpeed (const float speed) override
	Sets the speed of the finite medium.

bool	setLoop (const bool value) override
	Sets whether the medium has to be played in a loop.

float	soundVolume () const override
	Returns the volume of the sound in db.

bool	soundMute () const override
	Returns whether the sound medium is in a mute state.

bool	setSoundVolume (const float volume) override
	Sets the volume of the sound in db.

bool	setSoundMute (const bool mute) override
	Sets or un-sets the sound medium to a mute state.

Timestamp	startTimestamp () const override
	Returns the start timestamp.

Timestamp	pauseTimestamp () const override
	Returns the pause timestamp.

Timestamp	stopTimestamp () const override
	Returns the stop timestamp.

Public Member Functions inherited from Ocean::Media::Medium
const std::string &	url () const
	Returns the url of the medium.

bool	isValid () const
	Returns whether the medium is valid.

const std::string &	library () const
	Returns the name of the owner library.

Type	type () const
	Returns the type of the medium.

bool	isType (const Type type) const
	Returns whether a medium has a given type.

bool	isExclusive () const
	Returns whether this medium can be use exclusively.

Public Member Functions inherited from Ocean::Media::FiniteMedium
bool	loop () const
	Returns whether the medium is played in a loop.

virtual bool	taskFinished () const
	Returns whether a previous task has been finished.

Public Member Functions inherited from Ocean::Media::SoundMedium
bool	hasSound () const
	Returns whether the object holds a sound.

unsigned int	soundChannels () const
	Returns the number of sound channels.

SoundFrequency	soundFrequency () const
	Returns the frequency of the sound in Hz.

unsigned int	soundBitsPerSample () const
	Returns the number of bits per sample.

unsigned int	preferredSoundChannels () const
	Returns the preferred number of sound channels.

SoundFrequency	preferredSoundFrequency () const
	Returns the preferred sound frequency in Hz.

unsigned int	preferredSoundBitsPerSample () const
	Returns the preferred bits per sound sample.

virtual bool	setPreferredSoundChannels (const unsigned int channels)
	Sets the preferred number of sound channels.

virtual bool	setPreferredSoundFrequency (const SoundFrequency frequency)
	Sets the preferred sound frequency in Hz.

virtual bool	setPreferredSoundBitsPerSample (const unsigned int bits)
	Sets the preferred bits per sound sample.

Protected Member Functions
	AAudio (const SLEngineItf &slEngineInterface, const std::string &url)
	Creates a new medium by a given url.

	~AAudio () override
	Destructs the live video object.

bool	initialize (const SLEngineItf &slEngineInterface)
	Initializes the audio and all corresponding resources.

bool	release ()
	Releases the audio and all corresponding resources.

void	callbackFunction (SLPlayItf slCaller, SLuint32 slEvent)
	The callback function for position events.

Protected Member Functions inherited from Ocean::Media::Android::AMedium
	AMedium (const std::string &url)
	Creates a new medium by a given url.

Protected Member Functions inherited from Ocean::Media::Medium
	Medium (const Medium &medium)=delete
	Disabled copy constructor.

	Medium (const std::string &url)
	Creates a new medium by a given url.

virtual	~Medium ()
	Destructs a medium.

Medium &	operator= (const Medium &medium)=delete
	Disabled copy operator.

Protected Member Functions inherited from Ocean::Media::Audio
	Audio (const std::string &url)
	Creates a new audio by a given url.

Protected Member Functions inherited from Ocean::Media::FiniteMedium
	FiniteMedium (const std::string &url)
	Creates a new finite medium by a given url.

Protected Member Functions inherited from Ocean::Media::SoundMedium
	SoundMedium (const std::string &url)
	Creates a new sound medium by a given url.

Static Protected Member Functions
static void	staticCallbackFunction (SLPlayItf slCaller, void *context, SLuint32 slEvent)
	The static callback function for position events.

Protected Attributes
Timestamp	startTimestamp_ = Timestamp(false)
	Start timestamp.

Timestamp	pauseTimestamp_ = Timestamp(false)
	Pause timestamp.

Timestamp	stopTimestamp_ = Timestamp(false)
	Stop timestamp.

SLObjectItf	slPlayer_ = nullptr
	The SL player object.

SLPlayItf	slPlayInterface_ = nullptr
	The SL player interface.

SLObjectItf	slOutputMix_ = nullptr
	The SL output mix object.

SLSeekItf	slSeekInterface_ = nullptr
	The SL seek interface.

SLVolumeItf	slVolumeInterface_ = nullptr
	The SL volume interface.

Protected Attributes inherited from Ocean::Media::Medium
std::string	url_
	Url of the medium.

std::string	libraryName_
	Name of the owner library.

bool	isValid_ = false
	Determines whether the medium is valid.

Type	type_ = MEDIUM
	Type of the medium.

Lock	lock_
	Medium lock.

Protected Attributes inherited from Ocean::Media::FiniteMedium
bool	loop_ = false
	Determines whether the medium is played in a loop.

Protected Attributes inherited from Ocean::Media::SoundMedium
SoundType	mediumSoundType
	Actual sound type.

SoundType	mediumPreferredSoundType
	Preferred sound type.

Timestamp	mediumSoundTimestamp
	Timestamp of the recent sound frame.

Timestamp	mediumSoundTypeTimestamp
	Timestamp of the recent sound frame type.

Friends
class	ALibrary

Additional Inherited Members
Public Types inherited from Ocean::Media::Medium
enum	Type : uint32_t { MEDIUM = 0u , FRAME_MEDIUM = 1u << 0u , SOUND_MEDIUM = 1u << 1u , FINITE_MEDIUM = 1u << 2u , LIVE_MEDIUM = 1u << 3u , CONFIG_MEDIUM = 1u << 4u , AUDIO = (1u << 5u) \| FINITE_MEDIUM \| SOUND_MEDIUM , IMAGE = (1u << 6u) \| FRAME_MEDIUM , PIXEL_IMAGE = (1u << 7u) \| FRAME_MEDIUM , BUFFER_IMAGE = (1u << 8u) \| FRAME_MEDIUM , IMAGE_SEQUENCE = (1u << 9u) \| FRAME_MEDIUM \| FINITE_MEDIUM , LIVE_AUDIO = (1u << 10u) \| LIVE_MEDIUM \| SOUND_MEDIUM , LIVE_VIDEO = (1u << 11u) \| LIVE_MEDIUM \| FRAME_MEDIUM , MICROPHONE = (1u << 12u) \| LIVE_MEDIUM , MOVIE = (1u << 13u) \| FINITE_MEDIUM \| FRAME_MEDIUM \| SOUND_MEDIUM }
	Definition of different medium types. More...

Public Types inherited from Ocean::Media::SoundMedium
typedef float	SoundFrequency
	Definition of a sound frequency defined in Hz.

Static Public Member Functions inherited from Ocean::Media::Android::AMedium
static bool	areInterfaceIdsIdentical (const SLInterfaceID &interfaceId0, const SLInterfaceID &interfaceId1)
	Returns whether two interface ids are identical.

static std::string	toAString (const SLInterfaceID &interfaceId)
	Returns the hex string of an interface id,.

Static Public Member Functions inherited from Ocean::Media::Medium
static std::string	convertType (const Type type)
	Converts a medium type to a unique string.

static Type	convertType (const std::string &type)
	Converts a medium type string to a medium type.

Static Public Attributes inherited from Ocean::Media::Android::AMedium
static constexpr SLInterfaceID_	slEffectTypeNoiseSuppressorId_ = {0x58b4b260, 0x8e06, 0x11e0, 0xaa8e, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}
	Definition of the interface for Noise Suppressor (NS).

static constexpr SLInterfaceID_	slEffectTypeAcousticEchoCancelerId_ = {0x7b491460, 0x8d4d, 0x11e0, 0xbd61, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}
	Definition of the interface for Acoustic Echo Canceler (AEC).

Static Public Attributes inherited from Ocean::Media::FiniteMedium
static constexpr float	AS_FAST_AS_POSSIBLE = 0.0f
	Definition of a speed value allowing to deliver the media content as fast as possible.

Detailed Description

This class implements an Audio class for Android.

Constructor & Destructor Documentation

◆ AAudio()

Ocean::Media::Android::AAudio::AAudio	(	const SLEngineItf &	slEngineInterface,
		const std::string &	url
	)

explicitprotected

Creates a new medium by a given url.

Parameters

slEngineInterface	The interface of the SL engine, must be valid
url	Url of the medium

◆ ~AAudio()

Ocean::Media::Android::AAudio::~AAudio ( )

overrideprotected

Destructs the live video object.

Member Function Documentation

◆ callbackFunction()

void Ocean::Media::Android::AAudio::callbackFunction	(	SLPlayItf	slCaller,
		SLuint32	slEvent
	)

protected

The callback function for position events.

Parameters

slCaller	The caller of the function
slEvent	The actual event

◆ clone()

MediumRef Ocean::Media::Android::AAudio::clone ( ) const

overridevirtual

Clones this movie medium and returns a new independent instance of this medium.

See also: Medium::clone()

Reimplemented from Ocean::Media::Medium.

◆ duration()

double Ocean::Media::Android::AAudio::duration ( ) const

overridevirtual

Returns the duration of the finite medium.

See also: FiniteMedium::duration().

Implements Ocean::Media::FiniteMedium.

◆ initialize()

bool Ocean::Media::Android::AAudio::initialize ( const SLEngineItf & slEngineInterface )

protected

Initializes the audio and all corresponding resources.

Parameters

slEngineInterface The interface of the SL engine, must be valid

Returns: True, if succeeded

◆ isStarted()

bool Ocean::Media::Android::AAudio::isStarted ( ) const

overridevirtual

Returns whether the medium is started currently.

See also: Medium::isStarted().

Implements Ocean::Media::Medium.

◆ normalDuration()

double Ocean::Media::Android::AAudio::normalDuration ( ) const

overridevirtual

Returns the duration without speed consideration.

See also: FiniteMedium::normalDuration().

Implements Ocean::Media::FiniteMedium.

◆ pause()

bool Ocean::Media::Android::AAudio::pause ( )

overridevirtual

Pauses the medium.

See also: Medium::pause():

Implements Ocean::Media::Medium.

◆ pauseTimestamp()

Timestamp Ocean::Media::Android::AAudio::pauseTimestamp ( ) const

overridevirtual

Returns the pause timestamp.

See also: FiniteMedium::pauseTimestamp().

Implements Ocean::Media::Medium.

◆ position()

double Ocean::Media::Android::AAudio::position ( ) const

overridevirtual

Returns the recent position of the finite medium.

See also: FiniteMedium::position().

Implements Ocean::Media::FiniteMedium.

◆ release()

bool Ocean::Media::Android::AAudio::release ( )

protected

Releases the audio and all corresponding resources.

Returns: True, if succeeded

◆ setLoop()

bool Ocean::Media::Android::AAudio::setLoop ( const bool value )

overridevirtual

Sets whether the medium has to be played in a loop.

See also: FiniteMedium::setLoop().

Reimplemented from Ocean::Media::FiniteMedium.

◆ setPosition()

bool Ocean::Media::Android::AAudio::setPosition ( const double position )

overridevirtual

Sets the recent position of the finite medium.

See also: FiniteMedium::setPosition().

Reimplemented from Ocean::Media::FiniteMedium.

◆ setSoundMute()

bool Ocean::Media::Android::AAudio::setSoundMute ( const bool mute )

overridevirtual

Sets or un-sets the sound medium to a mute state.

See also: SoundMedium::setSoundMute().

Implements Ocean::Media::SoundMedium.

◆ setSoundVolume()

bool Ocean::Media::Android::AAudio::setSoundVolume ( const float volume )

overridevirtual

Sets the volume of the sound in db.

See also: SoundMedium::setSoundVolume().

Implements Ocean::Media::SoundMedium.

◆ setSpeed()

bool Ocean::Media::Android::AAudio::setSpeed ( const float speed )

overridevirtual

Sets the speed of the finite medium.

See also: FiniteMedium::setSpeed().

Reimplemented from Ocean::Media::FiniteMedium.

◆ soundMute()

bool Ocean::Media::Android::AAudio::soundMute ( ) const

overridevirtual

Returns whether the sound medium is in a mute state.

See also: SoundMedium::soundMute().

Implements Ocean::Media::SoundMedium.

◆ soundVolume()

float Ocean::Media::Android::AAudio::soundVolume ( ) const

overridevirtual

Returns the volume of the sound in db.

See also: SoundMedium::soundVolume().

Implements Ocean::Media::SoundMedium.

◆ speed()

float Ocean::Media::Android::AAudio::speed ( ) const

overridevirtual

Returns the speed of the finite medium.

See also: FiniteMedium::speed().

Implements Ocean::Media::FiniteMedium.

◆ start()

bool Ocean::Media::Android::AAudio::start ( )

overridevirtual

Starts the medium.

See also: Medium::start().

Implements Ocean::Media::Medium.

◆ startTimestamp()

Timestamp Ocean::Media::Android::AAudio::startTimestamp ( ) const

overridevirtual

Returns the start timestamp.

See also: FiniteMedium::startTimestamp().

Implements Ocean::Media::Medium.

◆ staticCallbackFunction()

static void Ocean::Media::Android::AAudio::staticCallbackFunction	(	SLPlayItf	slCaller,
		void *	context,
		SLuint32	slEvent
	)

staticprotected

The static callback function for position events.

Parameters

slCaller	The caller of the function
context	The callback's context
slEvent	The actual event

◆ stop()

bool Ocean::Media::Android::AAudio::stop ( )

overridevirtual

Stops the medium.

See also: Medium::stop().

Implements Ocean::Media::Medium.

◆ stopTimestamp()

Timestamp Ocean::Media::Android::AAudio::stopTimestamp ( ) const

overridevirtual

Returns the stop timestamp.

See also: FiniteMedium::stopTimestamp().

Implements Ocean::Media::Medium.

Friends And Related Symbol Documentation

◆ ALibrary

friend class ALibrary

friend

Field Documentation

◆ pauseTimestamp_

Timestamp Ocean::Media::Android::AAudio::pauseTimestamp_ = Timestamp(false)

protected

Pause timestamp.

◆ slOutputMix_

SLObjectItf Ocean::Media::Android::AAudio::slOutputMix_ = nullptr

protected

The SL output mix object.

◆ slPlayer_

SLObjectItf Ocean::Media::Android::AAudio::slPlayer_ = nullptr

protected

The SL player object.

◆ slPlayInterface_

SLPlayItf Ocean::Media::Android::AAudio::slPlayInterface_ = nullptr

protected

The SL player interface.

◆ slSeekInterface_

SLSeekItf Ocean::Media::Android::AAudio::slSeekInterface_ = nullptr

protected

The SL seek interface.

◆ slVolumeInterface_

SLVolumeItf Ocean::Media::Android::AAudio::slVolumeInterface_ = nullptr

protected

The SL volume interface.

◆ startTimestamp_

Timestamp Ocean::Media::Android::AAudio::startTimestamp_ = Timestamp(false)

protected

Start timestamp.

◆ stopTimestamp_

Timestamp Ocean::Media::Android::AAudio::stopTimestamp_ = Timestamp(false)

protected

Stop timestamp.

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

AAudio.h

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AAudio()

◆ ~AAudio()

Member Function Documentation

◆ callbackFunction()

◆ clone()

◆ duration()

◆ initialize()

◆ isStarted()

◆ normalDuration()

◆ pause()

◆ pauseTimestamp()

◆ position()

◆ release()

◆ setLoop()

◆ setPosition()

◆ setSoundMute()

◆ setSoundVolume()

◆ setSpeed()

◆ soundMute()

◆ soundVolume()

◆ speed()

◆ start()

◆ startTimestamp()

◆ staticCallbackFunction()

◆ stop()

◆ stopTimestamp()

Friends And Related Symbol Documentation

◆ ALibrary

Field Documentation

◆ pauseTimestamp_

◆ slOutputMix_

◆ slPlayer_

◆ slPlayInterface_

◆ slSeekInterface_

◆ slVolumeInterface_

◆ startTimestamp_

◆ stopTimestamp_