28 #include "../../include/effects/Saturation.h"
35 init_effect_details();
42 init_effect_details();
46 void Saturation::init_effect_details()
64 std::shared_ptr<QImage> frame_image = frame->GetImage();
78 unsigned char *pixels = (
unsigned char *) frame_image->bits();
79 for (
int pixel = 0, byte_index=0; pixel < frame_image->width() * frame_image->height(); pixel++, byte_index+=4)
82 int R = pixels[byte_index];
83 int G = pixels[byte_index + 1];
84 int B = pixels[byte_index + 2];
85 int A = pixels[byte_index + 3];
88 double p = sqrt( (R * R * pR) +
93 R = p + (R - p) * saturation_value;
94 G = p + (G - p) * saturation_value;
95 B = p + (B - p) * saturation_value;
103 pixels[byte_index] = R;
104 pixels[byte_index + 1] = G;
105 pixels[byte_index + 2] = B;
106 pixels[byte_index + 3] = A;
138 bool success = reader.parse( value, root );
141 throw InvalidJSON(
"JSON could not be parsed (or is invalid)",
"");
151 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)",
"");
162 if (!root[
"saturation"].isNull())
171 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
172 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
174 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
175 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
176 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
true, requested_frame);
182 return root.toStyledString();
Json::Value JsonValue()
Generate Json::JsonValue for this object.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
Saturation()
Blank constructor, useful when using Json to load the effect properties.
float End()
Get end position (in seconds) of clip (trim end of video)
Json::Value add_property_json(string name, float value, string type, string memo, Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame)
Generate JSON for a property.
int Layer()
Get layer of clip on timeline (lower number is covered by higher numbers)
string Json()
Get and Set JSON methods.
string class_name
The class name of the effect.
virtual Json::Value JsonValue()=0
Generate Json::JsonValue for this object.
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
bool has_audio
Determines if this effect manipulates the audio of a frame.
string Id()
Get basic properties.
float Position()
Get position on timeline (in seconds)
string name
The name of the effect.
string description
The description of this effect and what it does.
virtual void SetJsonValue(Json::Value root)=0
Load Json::JsonValue into this object.
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
double GetValue(int64_t index)
Get the value at a specific index.
This namespace is the default namespace for all code in the openshot library.
string PropertiesJSON(int64_t requested_frame)
bool has_video
Determines if this effect manipulates the image of a frame.
Exception for invalid JSON.
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...
A Keyframe is a collection of Point instances, which is used to vary a number or property over time...
float Duration()
Get the length of this clip (in seconds)
float Start()
Get start position (in seconds) of clip (trim start of video)
void SetJson(string value)
Load JSON string into this object.
EffectInfoStruct info
Information about the current effect.
Keyframe saturation
The color saturation: 0.0 = black and white, 1.0 = normal, 2.0 = double saturation.