This class adds a expander (or noise gate) into the audio. More...

#include <audio_effects/Expander.h>

Inheritance diagram for openshot::Expander:

Collaboration diagram for openshot::Expander:

Public Member Functions
float	calculateAttackOrRelease (float value)

	Expander ()
	Default constructor. More...

	Expander (Keyframe threshold, Keyframe ratio, Keyframe attack, Keyframe release, Keyframe makeup_gain, Keyframe bypass)
	Constructor. More...

std::shared_ptr< openshot::Frame >	GetFrame (int64_t frame_number) override
	This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object. All Clip keyframes and effects are resolved into pixels. More...

std::shared_ptr< openshot::Frame >	GetFrame (std::shared_ptr< openshot::Frame > frame, int64_t frame_number) override
	This method is required for all derived classes of ClipBase, and returns a modified openshot::Frame object. More...

std::string	Json () const override
	Generate JSON string of this object. More...

Json::Value	JsonValue () const override
	Generate Json::Value for this object. More...

std::string	PropertiesJSON (int64_t requested_frame) const override

void	SetJson (const std::string value) override
	Load JSON string into this object. More...

void	SetJsonValue (const Json::Value root) override
	Load Json::Value into this object. More...

Public Member Functions inherited from openshot::EffectBase
Json::Value	BasePropertiesJSON (int64_t requested_frame) const
	Generate JSON object of base properties (recommended to be used by all effects) More...

int	constrain (int color_value)
	Constrain a color value from 0 to 255. More...

void	DisplayInfo (std::ostream *out=&std::cout)
	Display effect information in the standard output stream (stdout) More...

virtual std::string	GetVisibleObjects (int64_t frame_number) const
	Get the indexes and IDs of all visible objects in the given frame. More...

void	InitEffectInfo ()

virtual std::string	Json (int64_t requested_frame) const

Json::Value	JsonInfo () const
	Generate JSON object of meta data / info. More...

int	Order () const
	Get the order that this effect should be executed. More...

void	Order (int new_order)
	Set the order that this effect should be executed. More...

openshot::ClipBase *	ParentClip ()
	Parent clip object of this effect (which can be unparented and NULL) More...

void	ParentClip (openshot::ClipBase *new_clip)
	Set parent clip object of this effect. More...

std::string	ParentClipId () const
	Return the ID of this effect's parent clip. More...

virtual void	SetJson (int64_t requested_frame, const std::string value)

void	SetParentEffect (std::string parentEffect_id)
	Set the parent effect from which this properties will be set to. More...

virtual	~EffectBase ()=default

Public Member Functions inherited from openshot::ClipBase
	ClipBase ()
	Constructor for the base clip. More...

virtual void	End (float value)
	Set end position (in seconds) of clip (trim end of video) More...

void	Id (std::string value)

void	Layer (int value)
	Set layer of clip on timeline (lower number is covered by higher numbers) More...

bool	operator< (ClipBase &a)

bool	operator<= (ClipBase &a)

bool	operator> (ClipBase &a)

bool	operator>= (ClipBase &a)

void	Position (float value)
	Set the Id of this clip object More...

void	Start (float value)
	Set start position (in seconds) of clip (trim start of video) More...

virtual	~ClipBase ()=default

Public Attributes
Keyframe	attack

Keyframe	bypass

float	control

float	input_level

float	inverse_sample_rate

float	inverseE

Keyframe	makeup_gain

juce::AudioBuffer< float >	mixed_down_input

Keyframe	ratio

Keyframe	release

Keyframe	threshold

float	xg

float	xl

float	yg

float	yl

float	yl_prev

Public Attributes inherited from openshot::EffectBase
EffectInfoStruct	info
	Information about the current effect. More...

EffectBase *	parentEffect
	Parent effect (which properties will set this effect properties) More...

std::map< int, std::shared_ptr< openshot::TrackedObjectBase > >	trackedObjects
	Map of Tracked Object's by their indices (used by Effects that track objects on clips) More...

Additional Inherited Members
Protected Member Functions inherited from openshot::ClipBase
Json::Value	add_property_choice_json (std::string name, int value, int selected_value) const
	Generate JSON choice for a property (dropdown properties) More...

Json::Value	add_property_json (std::string name, float value, std::string type, std::string memo, const Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame) const
	Generate JSON for a property. More...

Protected Attributes inherited from openshot::EffectBase
openshot::ClipBase *	clip
	Pointer to the parent clip instance (if any) More...

Protected Attributes inherited from openshot::ClipBase
float	end
	The position in seconds to end playing (used to trim the ending of a clip) More...

std::string	id
	ID Property for all derived Clip and Effect classes. More...

int	layer
	The layer this clip is on. Lower clips are covered up by higher clips. More...

float	position
	The position on the timeline where this clip should start playing. More...

std::string	previous_properties
	This string contains the previous JSON properties. More...

float	start
	The position in seconds to start playing (used to trim the beginning of a clip) More...

openshot::TimelineBase *	timeline
	Pointer to the parent timeline instance (if any) More...

Detailed Description

This class adds a expander (or noise gate) into the audio.

Definition at line 36 of file Expander.h.

Constructor & Destructor Documentation

◆ Expander() [1/2]

Expander::Expander ( )

Default constructor.

Definition at line 19 of file Expander.cpp.

◆ Expander() [2/2]

Expander::Expander	(	Keyframe	threshold,
		Keyframe	ratio,
		Keyframe	attack,
		Keyframe	release,
		Keyframe	makeup_gain,
		Keyframe	bypass
	)

Constructor.

Definition at line 22 of file Expander.cpp.

Member Function Documentation

◆ calculateAttackOrRelease()

float Expander::calculateAttackOrRelease ( float value )

Definition at line 113 of file Expander.cpp.

Referenced by GetFrame().

◆ GetFrame() [1/2]

std::shared_ptr<openshot::Frame> openshot::Expander::GetFrame ( int64_t frame_number )

inlineoverridevirtual

This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object. All Clip keyframes and effects are resolved into pixels.

Returns: A new openshot::Frame object

Parameters

frame_number The frame number (starting at 1) of the clip or effect on the timeline.

Implements openshot::ClipBase.

Definition at line 73 of file Expander.h.

◆ GetFrame() [2/2]

std::shared_ptr< openshot::Frame > Expander::GetFrame	(	std::shared_ptr< openshot::Frame >	frame,
		int64_t	frame_number
	)

overridevirtual

This method is required for all derived classes of ClipBase, and returns a modified openshot::Frame object.

The frame object is passed into this method and used as a starting point / background (pixels). All Clip keyframes and effects are resolved into pixels.

Returns: The modified openshot::Frame object

Parameters

frame	This is ignored on Clip, due to caching optimizations. This frame instance is clobbered with the source frame.
frame_number	The frame number (starting at 1) of the clip or effect on the timeline.

Implements openshot::ClipBase.

Definition at line 52 of file Expander.cpp.

◆ Json()

std::string Expander::Json ( ) const

overridevirtual

Generate JSON string of this object.

Reimplemented from openshot::EffectBase.

Definition at line 122 of file Expander.cpp.

◆ JsonValue()

Json::Value Expander::JsonValue ( ) const

overridevirtual

Generate Json::Value for this object.

Reimplemented from openshot::EffectBase.

Definition at line 129 of file Expander.cpp.

Referenced by Json().

◆ PropertiesJSON()

std::string Expander::PropertiesJSON ( int64_t requested_frame ) const

overridevirtual

Get all properties for a specific frame (perfect for a UI to display the current state of all properties at any time)

Implements openshot::ClipBase.

Definition at line 189 of file Expander.cpp.

◆ SetJson()

void Expander::SetJson ( const std::string value )

overridevirtual

Load JSON string into this object.

Reimplemented from openshot::EffectBase.

Definition at line 146 of file Expander.cpp.

◆ SetJsonValue()

void Expander::SetJsonValue ( const Json::Value root )

overridevirtual

Load Json::Value into this object.

Reimplemented from openshot::EffectBase.

Definition at line 163 of file Expander.cpp.

Referenced by SetJson().

Member Data Documentation

◆ attack

Keyframe openshot::Expander::attack

Definition at line 46 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ bypass

Keyframe openshot::Expander::bypass

Definition at line 49 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ control

float openshot::Expander::control

Definition at line 56 of file Expander.h.

Referenced by GetFrame().

◆ input_level

float openshot::Expander::input_level

Definition at line 58 of file Expander.h.

Referenced by GetFrame().

◆ inverse_sample_rate

float openshot::Expander::inverse_sample_rate

Definition at line 61 of file Expander.h.

Referenced by calculateAttackOrRelease(), and GetFrame().

◆ inverseE

float openshot::Expander::inverseE

Definition at line 62 of file Expander.h.

Referenced by calculateAttackOrRelease(), and GetFrame().

◆ makeup_gain

Keyframe openshot::Expander::makeup_gain

Definition at line 48 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ mixed_down_input

juce::AudioBuffer<float> openshot::Expander::mixed_down_input

Definition at line 51 of file Expander.h.

Referenced by GetFrame().

◆ ratio

Keyframe openshot::Expander::ratio

Definition at line 45 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ release

Keyframe openshot::Expander::release

Definition at line 47 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ threshold

Keyframe openshot::Expander::threshold

Definition at line 44 of file Expander.h.

Referenced by GetFrame(), JsonValue(), PropertiesJSON(), and SetJsonValue().

◆ xg

float openshot::Expander::xg

Definition at line 54 of file Expander.h.

Referenced by GetFrame().

◆ xl

float openshot::Expander::xl

Definition at line 52 of file Expander.h.

Referenced by GetFrame().

◆ yg

float openshot::Expander::yg

Definition at line 55 of file Expander.h.

Referenced by GetFrame().

◆ yl

float openshot::Expander::yl

Definition at line 53 of file Expander.h.

Referenced by GetFrame().

◆ yl_prev

float openshot::Expander::yl_prev

Definition at line 59 of file Expander.h.

Referenced by GetFrame().

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

audio_effects/Expander.h
audio_effects/Expander.cpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Expander() [1/2]

◆ Expander() [2/2]

Member Function Documentation

◆ calculateAttackOrRelease()

◆ GetFrame() [1/2]

◆ GetFrame() [2/2]

◆ Json()

◆ JsonValue()

◆ PropertiesJSON()

◆ SetJson()

◆ SetJsonValue()

Member Data Documentation

◆ attack

◆ bypass

◆ control

◆ input_level

◆ inverse_sample_rate

◆ inverseE

◆ makeup_gain

◆ mixed_down_input

◆ ratio

◆ release

◆ threshold

◆ xg

◆ xl

◆ yg

◆ yl

◆ yl_prev