28 #include "../../include/effects/Saturation.h" 35 init_effect_details();
42 init_effect_details();
46 void Saturation::init_effect_details()
60 int Saturation::constrain(
int color_value)
65 else if (color_value > 255)
76 tr1::shared_ptr<QImage> frame_image = frame->GetImage();
90 unsigned char *pixels = (
unsigned char *) frame_image->bits();
91 for (
int pixel = 0, byte_index=0; pixel < frame_image->width() * frame_image->height(); pixel++, byte_index+=4)
94 int R = pixels[byte_index];
95 int G = pixels[byte_index + 1];
96 int B = pixels[byte_index + 2];
97 int A = pixels[byte_index + 3];
100 double p = sqrt( (R * R * pR) +
105 R = p + (R - p) * saturation_value;
106 G = p + (G - p) * saturation_value;
107 B = p + (B - p) * saturation_value;
115 pixels[byte_index] = R;
116 pixels[byte_index + 1] = G;
117 pixels[byte_index + 2] = B;
118 pixels[byte_index + 3] = A;
150 bool success = reader.parse( value, root );
153 throw InvalidJSON(
"JSON could not be parsed (or is invalid)",
"");
163 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)",
"");
174 if (!root[
"saturation"].isNull())
182 Point requested_point(requested_frame, requested_frame);
186 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(),
false, 0, -1, -1,
CONSTANT, -1,
true);
187 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"",
false, 0, 0, 30 * 60 * 60 * 48,
CONSTANT, -1,
false);
188 root[
"layer"] =
add_property_json(
"Track",
Layer(),
"int",
"",
false, 0, 0, 20,
CONSTANT, -1,
false);
189 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"",
false, 0, 0, 30 * 60 * 60 * 48,
CONSTANT, -1,
false);
190 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"",
false, 0, 0, 30 * 60 * 60 * 48,
CONSTANT, -1,
false);
191 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"",
false, 0, 0, 30 * 60 * 60 * 48,
CONSTANT, -1,
true);
194 root[
"saturation"] =
add_property_json(
"Saturation",
saturation.
GetValue(requested_frame),
"float",
"",
saturation.
Contains(requested_point),
saturation.
GetCount(), 0.0, 4.0,
saturation.
GetClosestPoint(requested_point).
interpolation,
saturation.
GetClosestPoint(requested_point).
co.
X,
false);
197 return root.toStyledString();
Json::Value JsonValue()
Generate Json::JsonValue for this object.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
InterpolationType interpolation
This is the interpolation mode.
Saturation()
Blank constructor, useful when using Json to load the effect properties.
bool Contains(Point p)
Does this keyframe contain a specific point.
float End()
Get end position (in seconds) of clip (trim end of video)
A Point is the basic building block of a key-frame curve.
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.
float GetValue(long int index)
Get the value at a specific index.
Json::Value add_property_json(string name, float value, string type, string memo, bool contains_point, int number_of_points, float min_value, float max_value, InterpolationType intepolation, int closest_point_x, bool readonly)
Generate JSON for a property.
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.
float X
The X value of the coordinate (usually representing the frame #)
Point GetClosestPoint(Point p)
Get current point (or closest point) from the X coordinate (i.e. the frame number) ...
string PropertiesJSON(long int requested_frame)
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
This namespace is the default namespace for all code in the openshot library.
long int GetCount()
Get the number of points (i.e. # of points)
Coordinate co
This is the primary coordinate.
bool has_video
Determines if this effect manipulates the image of a frame.
Exception for invalid JSON.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time...
tr1::shared_ptr< Frame > GetFrame(tr1::shared_ptr< Frame > frame, long int frame_number)
This method is required for all derived classes of EffectBase, and returns a modified openshot::Frame...
float Duration()
Get the length of this clip (in seconds)
Constant curves jump from their previous position to a new one (with no interpolation).
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.