OpenShot Library | libopenshot
0.2.5
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31 #include "../../include/effects/Bars.h"
36 Bars::Bars() : color(
"#000000"), left(0.0), top(0.1), right(0.0), bottom(0.1) {
38 init_effect_details();
43 color(color), left(left), top(top), right(right), bottom(bottom)
46 init_effect_details();
50 void Bars::init_effect_details()
65 std::shared_ptr<Frame>
Bars::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(
color.
GetColorHex(frame_number))));
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);
149 catch (
const std::exception& e)
152 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
163 if (!root[
"color"].isNull())
165 if (!root[
"left"].isNull())
167 if (!root[
"top"].isNull())
169 if (!root[
"right"].isNull())
171 if (!root[
"bottom"].isNull())
180 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
181 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
183 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
184 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
185 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
188 root[
"color"] =
add_property_json(
"Bar Color", 0.0,
"color",
"", NULL, 0, 255,
false, requested_frame);
198 return root.toStyledString();
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.
const Json::Value stringToJson(const std::string value)
void SetJson(const std::string value)
Load JSON string into this object.
EffectInfoStruct info
Information about the current effect.
This namespace is the default namespace for all code in the openshot library.
float End() const
Get end position (in seconds) of clip (trim end of video)
std::string Json() const override
Get and Set JSON methods.
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
virtual void SetJsonValue(const Json::Value root)=0
Load Json::Value into this object.
Keyframe left
Size of left bar.
virtual Json::Value JsonValue() const =0
Generate Json::Value for this object.
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
Json::Value JsonValue() const
Generate Json::Value for this object.
This class represents a color (used on the timeline and clips)
Bars()
Blank constructor, useful when using Json to load the effect properties.
std::string Id() const
Get basic properties.
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.
Keyframe bottom
Size of bottom bar.
Exception for invalid JSON.
openshot::Keyframe green
Curve representing the green value (0 - 255)
bool has_audio
Determines if this effect manipulates the audio of a frame.
float Duration() const
Get the length of this clip (in seconds)
Keyframe right
Size of right bar.
Color color
Color of bars.
std::string PropertiesJSON(int64_t requested_frame) const override
Json::Value JsonValue() const override
Generate Json::Value for this object.
std::string class_name
The class name of the effect.
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.
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::shared_ptr< QImage > GetImage()
Get pointer to Qt QImage image object.
float Position() const
Get position on timeline (in seconds)
std::string name
The name of the effect.
Keyframe top
Size of top bar.
float Start() const
Get start position (in seconds) of clip (trim start of video)
openshot::Keyframe red
Curve representing the red value (0 - 255)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
std::string GetColorHex(int64_t frame_number)
Get the HEX value of a color at a specific frame.
openshot::Keyframe blue
Curve representing the red value (0 - 255)
double GetValue(int64_t index) const
Get the value at a specific index.