31 #include "../../include/effects/Crop.h"
36 Crop::Crop() : left(0.1), top(0.1), right(0.1), bottom(0.1) {
38 init_effect_details();
43 left(left), top(top), right(right), bottom(bottom)
46 init_effect_details();
50 void Crop::init_effect_details()
65 std::shared_ptr<Frame>
Crop::GetFrame(std::shared_ptr<Frame> frame, int64_t frame_number)
68 std::shared_ptr<QImage> frame_image = frame->GetImage();
71 std::shared_ptr<QImage> tempColor = std::shared_ptr<QImage>(
new QImage(frame_image->width(), 1, QImage::Format_RGBA8888));
72 tempColor->fill(QColor(QString::fromStdString(
"transparent")));
81 unsigned char *pixels = (
unsigned char *) frame_image->bits();
82 unsigned char *color_pixels = (
unsigned char *) tempColor->bits();
85 int top_bar_height = top_value * frame_image->height();
86 int bottom_bar_height = bottom_value * frame_image->height();
87 int left_bar_width = left_value * frame_image->width();
88 int right_bar_width = right_value * frame_image->width();
91 for (
int row = 0; row < frame_image->height(); row++) {
94 if ((top_bar_height > 0.0 && row <= top_bar_height) || (bottom_bar_height > 0.0 && row >= frame_image->height() - bottom_bar_height)) {
95 memcpy(&pixels[row * frame_image->width() * 4], color_pixels,
sizeof(
char) * frame_image->width() * 4);
98 if (left_bar_width > 0.0) {
99 memcpy(&pixels[row * frame_image->width() * 4], color_pixels,
sizeof(
char) * left_bar_width * 4);
103 if (right_bar_width > 0.0) {
104 memcpy(&pixels[((row * frame_image->width()) + (frame_image->width() - right_bar_width)) * 4], color_pixels,
sizeof(
char) * right_bar_width * 4);
148 catch (
const std::exception& e)
151 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
162 if (!root[
"left"].isNull())
164 if (!root[
"top"].isNull())
166 if (!root[
"right"].isNull())
168 if (!root[
"bottom"].isNull())
177 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
178 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
180 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
181 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
182 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
191 return root.toStyledString();
float End() const
Get end position (in seconds) of clip (trim end of video)
float Start() const
Get start position (in seconds) of clip (trim start of video)
float Duration() const
Get the length of this clip (in seconds)
std::string Id() const
Get basic properties.
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
float Position() const
Get position on timeline (in seconds)
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.
Keyframe right
Size of right bar.
std::string PropertiesJSON(int64_t requested_frame) const override
Json::Value JsonValue() const override
Generate Json::Value for this object.
Keyframe left
Size of left bar.
Crop()
Blank constructor, useful when using Json to load the effect properties.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
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...
Keyframe bottom
Size of bottom bar.
void SetJson(const std::string value)
Load JSON string into this object.
Keyframe top
Size of top bar.
std::string Json() const override
Get and Set JSON methods.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
EffectInfoStruct info
Information about the current effect.
Exception for invalid JSON.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
double GetValue(int64_t index) const
Get the value at a specific index.
Json::Value JsonValue() const
Generate Json::Value for this object.
This namespace is the default namespace for all code in the openshot library.
const Json::Value stringToJson(const std::string value)
bool has_video
Determines if this effect manipulates the image of a frame.
bool has_audio
Determines if this effect manipulates the audio of a frame.
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
std::string description
The description of this effect and what it does.