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/**
* @file
* @brief Header file for ChromaKey class
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @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_CHROMAKEY_EFFECT_H
#define OPENSHOT_CHROMAKEY_EFFECT_H
#include "../EffectBase.h"
#include <cmath>
#include <ctime>
#include <iostream>
#include <omp.h>
#include <stdio.h>
#include <memory>
#include "../Color.h"
#include "../Exceptions.h"
#include "../KeyFrame.h"
namespace openshot
{
/**
* @brief This class uses the ImageMagick++ libraries, to remove (i.e. key out) a color (i.e. greenscreen)
*
* The greenscreen / bluescreen effect replaces matching colors in the video image with
* transparent pixels, revealing lower layers in the timeline.
*/
class ChromaKey : public EffectBase
{
private:
Color color;
Keyframe fuzz;
/// Init effect settings
void init_effect_details();
public:
/// Blank constructor, useful when using Json to load the effect properties
ChromaKey();
/// Default constructor, which takes an openshot::Color object and a 'fuzz' factor, which
/// is used to determine how similar colored pixels are matched. The higher the fuzz, the
/// more colors are matched.
///
/// @param color The color to match
/// @param fuzz The fuzz factor (or threshold)
ChromaKey(Color color, Keyframe fuzz);
/// @brief This method is required for all derived classes of EffectBase, and returns a
/// modified openshot::Frame object
///
/// The frame object is passed into this method, and a frame_number is passed in which
/// tells the effect which settings to use from its keyframes (starting at 1).
///
/// @returns The modified openshot::Frame object
/// @param frame The frame object that needs the effect applied to it
/// @param frame_number The frame number (starting at 1) of the effect on the timeline.
std::shared_ptr<Frame> GetFrame(std::shared_ptr<Frame> frame, int64_t frame_number);
/// Get and Set JSON methods
std::string Json() const override; ///< Generate JSON string of this object
void SetJson(const std::string value); ///< Load JSON string into this object
Json::Value JsonValue() const override; ///< Generate Json::Value for this object
void SetJsonValue(const Json::Value root); ///< Load Json::Value into this object
// Get all properties for a specific frame
std::string PropertiesJSON(int64_t requested_frame) const override;
};
}
#endif
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