31 #include "../../include/effects/Saturation.h" 38 init_effect_details();
45 init_effect_details();
49 void Saturation::init_effect_details()
67 std::shared_ptr<QImage> frame_image = frame->GetImage();
72 int pixel_count = frame_image->width() * frame_image->height();
78 const double pR = .299;
79 const double pG = .587;
80 const double pB = .114;
83 unsigned char *pixels = (
unsigned char *) frame_image->bits();
85 #pragma omp parallel for shared (pixels) 86 for (
int pixel = 0; pixel < pixel_count; ++pixel)
89 int R = pixels[pixel * 4];
90 int G = pixels[pixel * 4 + 1];
91 int B = pixels[pixel * 4 + 2];
94 double p = sqrt( (R * R * pR) +
99 pixels[pixel * 4] =
constrain(p + (R - p) * saturation_value);
100 pixels[pixel * 4 + 1] =
constrain(p + (G - p) * saturation_value);
101 pixels[pixel * 4 + 2] =
constrain(p + (B - p) * saturation_value);
137 catch (
const std::exception& e)
140 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
151 if (!root[
"saturation"].isNull())
160 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
161 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
163 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
164 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
165 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
true, requested_frame);
171 return root.toStyledString();
std::string Id() const
Get basic properties.
Json::Value JsonValue() const override
Generate Json::Value for this object.
float Start() const
Get start position (in seconds) of clip (trim start of video)
std::string PropertiesJSON(int64_t requested_frame) const override
Saturation()
Blank constructor, useful when using Json to load the effect properties.
std::string Json() const override
Get and Set JSON methods.
const Json::Value stringToJson(const std::string value)
void SetJson(const std::string value)
Load JSON string into this object.
bool has_audio
Determines if this effect manipulates the audio of a frame.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
float Duration() const
Get the length of this clip (in seconds)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
This namespace is the default namespace for all code in the openshot library.
Json::Value JsonValue() const
Generate Json::Value for this object.
std::string description
The description of this effect and what it does.
bool has_video
Determines if this effect manipulates the image of a frame.
Exception for invalid JSON.
double GetValue(int64_t index) const
Get the value at a specific index.
int constrain(int color_value)
Constrain a color value from 0 to 255.
std::shared_ptr< Frame > GetFrame(std::shared_ptr< Frame > frame, int64_t frame_number)
This method is required for all derived classes of EffectBase, and returns a modified openshot::Frame...
float Position() const
Get position on timeline (in seconds)
float End() const
Get end position (in seconds) of clip (trim end of video)
A Keyframe is a collection of Point instances, which is used to vary a number or property over time...
Json::Value add_property_json(std::string name, float value, std::string type, std::string memo, const Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame) const
Generate JSON for a property.
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
EffectInfoStruct info
Information about the current effect.
Keyframe saturation
The color saturation: 0.0 = black and white, 1.0 = normal, 2.0 = double saturation.