28 #include "../../include/effects/Pixelate.h" 35 init_effect_details();
40 pixelization(pixelization), left(left), top(top), right(right), bottom(bottom)
43 init_effect_details();
47 void Pixelate::init_effect_details()
55 info.
description =
"Pixelate (increase or decrease) the number of visible pixels.";
65 std::shared_ptr<QImage> frame_image = frame->GetImage();
74 if (pixelization_value > 0.0) {
76 std::shared_ptr<QImage> smaller_frame_image = std::shared_ptr<QImage>(
new QImage(frame_image->scaledToWidth(max(frame_image->width() * pixelization_value, 2.0), Qt::SmoothTransformation)));
79 std::shared_ptr<QImage> pixelated_image = std::shared_ptr<QImage>(
new QImage(smaller_frame_image->scaledToWidth(frame_image->width(), Qt::FastTransformation).convertToFormat(QImage::Format_RGBA8888)));
82 unsigned char *pixels = (
unsigned char *) frame_image->bits();
83 unsigned char *pixelated_pixels = (
unsigned char *) pixelated_image->bits();
86 int top_bar_height = top_value * frame_image->height();
87 int bottom_bar_height = bottom_value * frame_image->height();
88 int left_bar_width = left_value * frame_image->width();
89 int right_bar_width = right_value * frame_image->width();
92 for (
int row = 0; row < frame_image->height(); row++) {
95 if ((row >= top_bar_height) && (row <= frame_image->height() - bottom_bar_height)) {
96 memcpy(&pixels[(row * frame_image->width() + left_bar_width) * 4], &pixelated_pixels[(row * frame_image->width() + left_bar_width) * 4],
sizeof(
char) * (frame_image->width() - left_bar_width - right_bar_width) * 4);
101 smaller_frame_image.reset();
102 pixelated_image.reset();
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[
"pixelization"].isNull())
164 if (!root[
"left"].isNull())
166 if (!root[
"top"].isNull())
168 if (!root[
"right"].isNull())
170 if (!root[
"bottom"].isNull())
179 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
180 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
182 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
183 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
184 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
194 return root.toStyledString();
Pixelate()
Blank constructor, useful when using Json to load the effect properties.
Keyframe bottom
Size of bottom margin.
string PropertiesJSON(int64_t requested_frame)
Json::Value JsonValue()
Generate Json::JsonValue for this object.
Keyframe pixelization
Amount of pixelization.
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)
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...
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.
Keyframe right
Size of right margin.
string Id()
Get basic properties.
float Position()
Get position on timeline (in seconds)
string name
The name of the effect.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
string description
The description of this effect and what it does.
virtual void SetJsonValue(Json::Value root)=0
Load Json::JsonValue into this object.
Keyframe top
Size of top margin.
string Json()
Get and Set JSON methods.
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.
void SetJson(string value)
Load JSON string into this object.
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)
Keyframe left
Size of left margin.
EffectInfoStruct info
Information about the current effect.