alexaClientSDK::mediaPlayer::Normalizer Class Reference

#include <Normalizer.h>

Public Member Functions
bool	normalize (const double &unnormalizedInput, double *normalizedOutput)

Static Public Member Functions
static std::unique_ptr< Normalizer >	create (const double &sourceMin, const double &sourceMax, const double &normalizedMin, const double &normalizedMax)

Detailed Description

This class performs a linear transform between two ranges [sourceMin, sourceMax] -> [normalizedMin, normalizedMax]. This is used by the MediaPlayer to convert between different volume ranges. MediaPlayer internally uses GStreamer, whose volume element takes in a gdouble.

Member Function Documentation

create()

static std::unique_ptr<Normalizer> alexaClientSDK::mediaPlayer::Normalizer::create ( const double &  sourceMin, const double &  sourceMax, const double &  normalizedMin, const double &  normalizedMax  )

static

Creates a unique_ptr to a Normalizer class.

Parameters

sourceMin	The minimum value in the source space.
sourceMax	The maximum value in the source space.
normalizedMin	The minimum value in the normalized space.
normalizedMax	The maximum value in the normalized space.

Returns

A pointer to an instance of the Normalizer class if the ranges are valid. Otherwise, nullptr is returned.

normalize()

bool alexaClientSDK::mediaPlayer::Normalizer::normalize	(	const double &	unnormalizedInput,
		double *	normalizedOutput
	)

Performs feature scaling from [srcMin, srcMax] to [normalizedMin, normalizedMax].

Parameters

	unnormalizedInput	The input value to normalize.
[out]	normalizedOutput	The result after normalization.

Returns

Whether the operation was successful.

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

• /workplace/avs-device-sdk/MediaPlayer/GStreamerMediaPlayer/include/MediaPlayer/Normalizer.h