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();
Keyframe top
Size of top bar.
Keyframe right
Size of right bar.
std::string Id() const
Get basic properties.
float Start() const
Get start position (in seconds) of clip (trim start of video)
void SetJson(const std::string value)
Load JSON string into this object.
Keyframe left
Size of left bar.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
const Json::Value stringToJson(const std::string value)
Json::Value JsonValue() const override
Generate Json::Value for this object.
bool has_audio
Determines if this effect manipulates the audio of a frame.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
std::string PropertiesJSON(int64_t requested_frame) const override
Keyframe bottom
Size of bottom bar.
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...
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
float Duration() const
Get the length of this clip (in seconds)
std::string Json() const override
Get and Set JSON methods.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
Crop()
Blank constructor, useful when using Json to load the effect properties.
This namespace is the default namespace for all code in the openshot library.
Json::Value JsonValue() const
Generate Json::Value for this object.
std::string description
The description of this effect and what it does.
bool has_video
Determines if this effect manipulates the image of a frame.
Exception for invalid JSON.
double GetValue(int64_t index) const
Get the value at a specific index.
float Position() const
Get position on timeline (in seconds)
float End() const
Get end position (in seconds) of clip (trim end of video)
A Keyframe is a collection of Point instances, which is used to vary a number or property over time...
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.
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
EffectInfoStruct info
Information about the current effect.