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Blur.h
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// Copyright (c) 2008-2019 OpenShot Studios, LLC
//
// SPDX-License-Identifier: LGPL-3.0-or-later
#ifndef OPENSHOT_BLUR_EFFECT_H
#define OPENSHOT_BLUR_EFFECT_H
#include "../EffectBase.h"
#include "../Frame.h"
#include "../Json.h"
#include "../KeyFrame.h"
#include <memory>
#include <string>
namespace openshot
{
class Blur : public EffectBase
{
private:
void init_effect_details();
// Internal blur methods (inspired and credited to http://blog.ivank.net/fastest-gaussian-blur.html)
void boxBlurH(unsigned char *scl, unsigned char *tcl, int w, int h, int r);
void boxBlurT(unsigned char *scl, unsigned char *tcl, int w, int h, int r);
public:
Keyframe horizontal_radius;
Keyframe vertical_radius;
Keyframe sigma;
Keyframe iterations;
Blur();
Blur(Keyframe new_horizontal_radius, Keyframe new_vertical_radius, Keyframe new_sigma, Keyframe new_iterations);
std::shared_ptr<openshot::Frame> GetFrame(int64_t frame_number) override { return GetFrame(std::make_shared<openshot::Frame>(), frame_number); }
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;
void SetJson(const std::string value) override;
Json::Value JsonValue() const override;
void SetJsonValue(const Json::Value root) override;
std::string PropertiesJSON(int64_t requested_frame) const override;
};
}
#endif
EffectBase.h
Header file for EffectBase class.
Frame.h
Header file for Frame class.
Json.h
Header file for JSON class.
KeyFrame.h
Header file for the Keyframe class.
openshot::Blur::vertical_radius
Keyframe vertical_radius
Vertical blur radius keyframe. The size of the vertical blur operation in pixels.
Definition Blur.h:49
openshot::Blur::GetFrame
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...
Definition Blur.h:71
openshot::Blur::Json
std::string Json() const override
Generate JSON string of this object.
Definition Blur.cpp:155
openshot::Blur::JsonValue
Json::Value JsonValue() const override
Generate Json::Value for this object.
Definition Blur.cpp:162
openshot::Blur::Blur
Blur()
Blank constructor, useful when using Json to load the effect properties.
Definition Blur.cpp:19
openshot::Blur::iterations
Keyframe iterations
Iterations keyframe. The # of blur iterations per pixel. 3 iterations = Gaussian.
Definition Blur.h:51
openshot::Blur::PropertiesJSON
std::string PropertiesJSON(int64_t requested_frame) const override
Definition Blur.cpp:211
openshot::Blur::SetJson
void SetJson(const std::string value) override
Load JSON string into this object.
Definition Blur.cpp:177
openshot::Blur::sigma
Keyframe sigma
Sigma keyframe. The amount of spread in the blur operation. Should be larger than radius.
Definition Blur.h:50
openshot::Blur::SetJsonValue
void SetJsonValue(const Json::Value root) override
Load Json::Value into this object.
Definition Blur.cpp:194
openshot::Blur::horizontal_radius
Keyframe horizontal_radius
Horizontal blur radius keyframe. The size of the horizontal blur operation in pixels.
Definition Blur.h:48
openshot::EffectBase
This abstract class is the base class, used by all effects in libopenshot.
Definition EffectBase.h:54
openshot::Keyframe
A Keyframe is a collection of Point instances, which is used to vary a number or property over time.
Definition KeyFrame.h:53
openshot
This namespace is the default namespace for all code in the openshot library.
Definition Compressor.h:29