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Distortion.h
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Distortion.h
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/**
* @file
* @brief Header file for Distortion audio effect class
* @author
*
* @ref License
*/
/* LICENSE
*
* Copyright (c) 2008-2019 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSHOT_DISTORTION_AUDIO_EFFECT_H
#define OPENSHOT_DISTORTION_AUDIO_EFFECT_H
#define _USE_MATH_DEFINES
#include "../EffectBase.h"
#include "../Frame.h"
#include "../Json.h"
#include "../KeyFrame.h"
#include "../Enums.h"
#include <memory>
#include <string>
#include <math.h>
// #include <OpenShotAudio.h>
namespace openshot
{
/**
* @brief This class adds a noise into the audio
*
*/
class Distortion : public EffectBase
{
private:
/// Init effect settings
void init_effect_details();
public:
openshot::DistortionType distortion_type;
Keyframe input_gain;
Keyframe output_gain;
Keyframe tone;
/// Blank constructor, useful when using Json to load the effect properties
Distortion();
/// Default constructor
///
/// @param new_level The audio default distortion level (between 1 and 100)
Distortion(openshot::DistortionType new_distortion_type, Keyframe new_input_gain, Keyframe new_output_gain, Keyframe new_tone);
/// @brief 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
/// @param frame_number The frame number (starting at 1) of the clip or effect on the timeline.
std::shared_ptr<openshot::Frame> GetFrame(int64_t frame_number) override {
return GetFrame(std::make_shared<openshot::Frame>(), frame_number);
}
/// @brief 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 (pixels and audio).
/// All Clip keyframes and effects are resolved into pixels.
///
/// @returns The modified openshot::Frame object
/// @param frame The frame object that needs the clip or effect applied to it
/// @param frame_number The frame number (starting at 1) of the clip or effect on the timeline.
std::shared_ptr<openshot::Frame> GetFrame(std::shared_ptr<openshot::Frame> frame, int64_t frame_number) override;
// Get and Set JSON methods
std::string Json() const override; ///< Generate JSON string of this object
void SetJson(const std::string value) override; ///< Load JSON string into this object
Json::Value JsonValue() const override; ///< Generate Json::Value for this object
void SetJsonValue(const Json::Value root) override; ///< Load Json::Value into this object
/// Get all properties for a specific frame (perfect for a UI to display the current state
/// of all properties at any time)
std::string PropertiesJSON(int64_t requested_frame) const override;
class Filter : public juce::IIRFilter
{
public:
void updateCoefficients(const double discrete_frequency, const double gain);
};
juce::OwnedArray<Filter> filters;
void updateFilters(int64_t frame_number);
};
}
#endif