OpenShot Library | libopenshot
0.2.5
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31 #include "../../include/effects/Deinterlace.h"
39 init_effect_details();
46 init_effect_details();
50 void Deinterlace::init_effect_details()
58 info.
description =
"Remove interlacing from a video (i.e. even or odd horizontal lines)";
68 int original_width = frame->
GetImage()->width();
69 int original_height = frame->
GetImage()->height();
72 std::shared_ptr<QImage> image = frame->
GetImage();
73 const unsigned char* pixels = image->bits();
76 QImage deinterlaced_image(image->width(), image->height() / 2, QImage::Format_RGBA8888);
77 const unsigned char* deinterlaced_pixels = deinterlaced_image.bits();
83 for (
int row =
start; row < image->height(); row += 2) {
84 memcpy((
unsigned char*)deinterlaced_pixels, pixels + (row * image->bytesPerLine()), image->bytesPerLine());
85 deinterlaced_pixels += image->bytesPerLine();
89 image = std::shared_ptr<QImage>(
new QImage(deinterlaced_image.scaled(original_width, original_height, Qt::IgnoreAspectRatio, Qt::FastTransformation)));
111 root[
"isOdd"] = isOdd;
127 catch (
const std::exception& e)
130 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
141 if (!root[
"isOdd"].isNull())
142 isOdd = root[
"isOdd"].asBool();
150 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
151 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
153 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
154 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
155 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
true, requested_frame);
156 root[
"isOdd"] =
add_property_json(
"Is Odd Frame", isOdd,
"bool",
"", NULL, 0, 1,
true, requested_frame);
163 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)
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...
Json::Value JsonValue() const override
Generate Json::Value for this object.
EffectInfoStruct info
Information about the current effect.
This namespace is the default namespace for all code in the openshot library.
std::string Json() const override
Get and Set JSON methods.
Json::Value add_property_choice_json(std::string name, int value, int selected_value) const
Generate JSON choice for a property (dropdown properties)
float End() const
Get end position (in seconds) of clip (trim end of video)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
Deinterlace()
Blank constructor, useful when using Json to load the effect properties.
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.
std::string PropertiesJSON(int64_t requested_frame) const override
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
std::string Id() const
Get basic properties.
Exception for invalid JSON.
void AddImage(int new_width, int new_height, int bytes_per_pixel, QImage::Format type, const unsigned char *pixels_)
Add (or replace) pixel data to the frame.
bool has_audio
Determines if this effect manipulates the audio of a frame.
float Duration() const
Get the length of this clip (in seconds)
void SetJson(const std::string value)
Load JSON string into this object.
float start
The position in seconds to start playing (used to trim the beginning of a clip)
std::string class_name
The class name of the effect.
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< 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.
float Start() const
Get start position (in seconds) of clip (trim start of video)