28 #include "../../include/effects/ColorShift.h"
30 using namespace openshot;
33 ColorShift::ColorShift() : red_x(-0.05), red_y(0.0), green_x(0.05), green_y(0.0), blue_x(0.0), blue_y(0.0), alpha_x(0.0), alpha_y(0.0) {
35 init_effect_details();
40 red_x(red_x), red_y(red_y), green_x(green_x), green_y(green_y), blue_x(blue_x), blue_y(blue_y), alpha_x(alpha_x), alpha_y(alpha_y)
43 init_effect_details();
47 void ColorShift::init_effect_details()
55 info.
description =
"Shift the colors of an image up, down, left, and right (with infinite wrapping).";
65 std::shared_ptr<QImage> frame_image = frame->GetImage();
66 unsigned char *pixels = (
unsigned char *) frame_image->bits();
69 int frame_image_width = frame_image->width();
70 int frame_image_height = frame_image->height();
75 int red_x_shift_limit = round(frame_image_width * fmod(abs(red_x_shift), 1.0));
77 int red_y_shift_limit = round(frame_image_height * fmod(abs(red_y_shift), 1.0));
80 int green_x_shift_limit = round(frame_image_width * fmod(abs(green_x_shift), 1.0));
82 int green_y_shift_limit = round(frame_image_height * fmod(abs(green_y_shift), 1.0));
85 int blue_x_shift_limit = round(frame_image_width * fmod(abs(blue_x_shift), 1.0));
87 int blue_y_shift_limit = round(frame_image_height * fmod(abs(blue_y_shift), 1.0));
90 int alpha_x_shift_limit = round(frame_image_width * fmod(abs(alpha_x_shift), 1.0));
92 int alpha_y_shift_limit = round(frame_image_height * fmod(abs(alpha_y_shift), 1.0));
96 unsigned char *temp_image =
new unsigned char[frame_image_width * frame_image_height * 4]();
97 memcpy(temp_image, pixels,
sizeof(
char) * frame_image_width * frame_image_height * 4);
100 int starting_row_index = 0;
109 int red_starting_row_index = 0;
110 int green_starting_row_index = 0;
111 int blue_starting_row_index = 0;
112 int alpha_starting_row_index = 0;
114 int red_pixel_offset = 0;
115 int green_pixel_offset = 0;
116 int blue_pixel_offset = 0;
117 int alpha_pixel_offset = 0;
120 for (
int row = 0; row < frame_image_height; row++) {
121 for (
int col = 0; col < frame_image_width; col++) {
123 starting_row_index = row * frame_image_width * 4;
124 byte_index = starting_row_index + (col * 4);
125 red_starting_row_index = starting_row_index;
126 green_starting_row_index = starting_row_index;
127 blue_starting_row_index = starting_row_index;
128 alpha_starting_row_index = starting_row_index;
131 red_pixel_offset = 0;
132 green_pixel_offset = 0;
133 blue_pixel_offset = 0;
134 alpha_pixel_offset = 0;
137 R = temp_image[byte_index];
138 G = temp_image[byte_index + 1];
139 B = temp_image[byte_index + 2];
140 A = temp_image[byte_index + 3];
143 if (red_x_shift > 0.0)
144 red_pixel_offset = (col + red_x_shift_limit) % frame_image_width;
145 if (red_x_shift < 0.0)
146 red_pixel_offset = (frame_image_width + col - red_x_shift_limit) % frame_image_width;
147 if (green_x_shift > 0.0)
148 green_pixel_offset = (col + green_x_shift_limit) % frame_image_width;
149 if (green_x_shift < 0.0)
150 green_pixel_offset = (frame_image_width + col - green_x_shift_limit) % frame_image_width;
151 if (blue_x_shift > 0.0)
152 blue_pixel_offset = (col + blue_x_shift_limit) % frame_image_width;
153 if (blue_x_shift < 0.0)
154 blue_pixel_offset = (frame_image_width + col - blue_x_shift_limit) % frame_image_width;
155 if (alpha_x_shift > 0.0)
156 alpha_pixel_offset = (col + alpha_x_shift_limit) % frame_image_width;
157 if (alpha_x_shift < 0.0)
158 alpha_pixel_offset = (frame_image_width + col - alpha_x_shift_limit) % frame_image_width;
161 if (red_y_shift > 0.0)
162 red_starting_row_index = ((row + red_y_shift_limit) % frame_image_height) * frame_image_width * 4;
163 if (red_y_shift < 0.0)
164 red_starting_row_index = ((frame_image_height + row - red_y_shift_limit) % frame_image_height) * frame_image_width * 4;
165 if (green_y_shift > 0.0)
166 green_starting_row_index = ((row + green_y_shift_limit) % frame_image_height) * frame_image_width * 4;
167 if (green_y_shift < 0.0)
168 green_starting_row_index = ((frame_image_height + row - green_y_shift_limit) % frame_image_height) * frame_image_width * 4;
169 if (blue_y_shift > 0.0)
170 blue_starting_row_index = ((row + blue_y_shift_limit) % frame_image_height) * frame_image_width * 4;
171 if (blue_y_shift < 0.0)
172 blue_starting_row_index = ((frame_image_height + row - blue_y_shift_limit) % frame_image_height) * frame_image_width * 4;
173 if (alpha_y_shift > 0.0)
174 alpha_starting_row_index = ((row + alpha_y_shift_limit) % frame_image_height) * frame_image_width * 4;
175 if (alpha_y_shift < 0.0)
176 alpha_starting_row_index = ((frame_image_height + row - alpha_y_shift_limit) % frame_image_height) * frame_image_width * 4;
179 pixels[red_starting_row_index + 0 + (red_pixel_offset * 4)] = R;
180 pixels[green_starting_row_index + 1 + (green_pixel_offset * 4)] = G;
181 pixels[blue_starting_row_index + 2 + (blue_pixel_offset * 4)] = B;
182 pixels[alpha_starting_row_index + 3 + (alpha_pixel_offset * 4)] = A;
225 bool success = reader.parse( value, root );
228 throw InvalidJSON(
"JSON could not be parsed (or is invalid)",
"");
238 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)",
"");
249 if (!root[
"red_x"].isNull())
251 if (!root[
"red_y"].isNull())
253 if (!root[
"green_x"].isNull())
255 if (!root[
"green_y"].isNull())
257 if (!root[
"blue_x"].isNull())
259 if (!root[
"blue_y"].isNull())
261 if (!root[
"alpha_x"].isNull())
263 if (!root[
"alpha_y"].isNull())
272 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
273 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
275 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
276 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
277 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
290 return root.toStyledString();
Keyframe alpha_y
Shift the Alpha Y coordinates (up or down)
Keyframe red_x
Shift the Red X coordinates (left or right)
Json::Value JsonValue()
Generate Json::JsonValue for this object.
Keyframe blue_x
Shift the Blue X coordinates (left or right)
Keyframe green_y
Shift the Green Y coordinates (up or down)
string Json()
Get and Set JSON methods.
float End()
Get end position (in seconds) of clip (trim end of video)
Keyframe green_x
Shift the Green X coordinates (left or right)
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 PropertiesJSON(int64_t requested_frame)
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.
void SetJson(string value)
Load JSON string into this object.
bool has_audio
Determines if this effect manipulates the audio of a frame.
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...
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
Keyframe alpha_x
Shift the Alpha X coordinates (left or right)
string Id()
Get basic properties.
Keyframe red_y
Shift the Red Y coordinates (up or down)
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.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
double GetValue(int64_t index)
Get the value at a specific index.
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...
float Duration()
Get the length of this clip (in seconds)
float Start()
Get start position (in seconds) of clip (trim start of video)
EffectInfoStruct info
Information about the current effect.
Keyframe blue_y
Shift the Blue Y coordinates (up or down)
ColorShift()
Blank constructor, useful when using Json to load the effect properties.