Normalizer.h

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

#ifndef ALEXA_CLIENT_SDK_MEDIAPLAYER_GSTREAMERMEDIAPLAYER_INCLUDE_MEDIAPLAYER_NORMALIZER_H_
#define ALEXA_CLIENT_SDK_MEDIAPLAYER_GSTREAMERMEDIAPLAYER_INCLUDE_MEDIAPLAYER_NORMALIZER_H_

#include <memory>

namespace alexaClientSDK {
namespace mediaPlayer {

class Normalizer {
public:
    static std::unique_ptr<Normalizer> create(
        const double& sourceMin,
        const double& sourceMax,
        const double& normalizedMin,
        const double& normalizedMax);

    bool normalize(const double& unnormalizedInput, double* normalizedOutput);

private:
    Normalizer(
        const double& sourceMin,
        const double& sourceMax,
        const double& normalizedMin,
        const double& normalizedMax);

    double m_scaleFactor;
    double m_sourceMin;
    double m_sourceMax;
    double m_normalizedMin;
    double m_normalizedMax;
};

}  // namespace mediaPlayer
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_MEDIAPLAYER_GSTREAMERMEDIAPLAYER_INCLUDE_MEDIAPLAYER_NORMALIZER_H_