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);
143 Json::CharReaderBuilder rbuilder;
144 Json::CharReader* reader(rbuilder.newCharReader());
147 bool success = reader->parse( value.c_str(),
148 value.c_str() + value.size(), &root, &errors );
153 throw InvalidJSON(
"JSON could not be parsed (or is invalid)");
160 catch (
const std::exception& e)
163 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
174 if (!root[
"left"].isNull())
176 if (!root[
"top"].isNull())
178 if (!root[
"right"].isNull())
180 if (!root[
"bottom"].isNull())
189 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
190 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
192 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
193 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
194 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
203 return root.toStyledString();
Keyframe top
Size of top bar.
Keyframe right
Size of right bar.
Keyframe left
Size of left bar.
float End()
Get end position (in seconds) of clip (trim end of video)
int Layer()
Get layer of clip on timeline (lower number is covered by higher numbers)
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.
std::string Json()
Get and Set JSON methods.
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
Keyframe bottom
Size of bottom bar.
std::string Id()
Get basic properties.
float Position()
Get position on timeline (in seconds)
void SetJson(std::string value)
Load JSON string 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...
virtual void SetJsonValue(Json::Value root)=0
Load Json::JsonValue into this object.
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
std::string PropertiesJSON(int64_t requested_frame)
Json::Value add_property_json(std::string name, float value, std::string type, std::string memo, Keyframe *keyframe, float min_value, float max_value, bool readonly, int64_t requested_frame)
Generate JSON for a property.
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::JsonValue for this object.
std::string description
The description of this effect and what it does.
Json::Value JsonValue()
Generate Json::JsonValue for this object.
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.
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.