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)));
92 frame->AddImage(image);
111 root[
"isOdd"] = isOdd;
122 Json::CharReaderBuilder rbuilder;
123 Json::CharReader* reader(rbuilder.newCharReader());
126 bool success = reader->parse( value.c_str(),
127 value.c_str() + value.size(), &root, &errors );
132 throw InvalidJSON(
"JSON could not be parsed (or is invalid)");
139 catch (
const std::exception& e)
142 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
153 if (!root[
"isOdd"].isNull())
154 isOdd = root[
"isOdd"].asBool();
162 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
163 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
165 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
166 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
false, requested_frame);
167 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 30 * 60 * 60 * 48,
true, requested_frame);
168 root[
"isOdd"] =
add_property_json(
"Is Odd Frame", isOdd,
"bool",
"", NULL, 0, 1,
true, requested_frame);
175 return root.toStyledString();
std::string PropertiesJSON(int64_t requested_frame)
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)
void SetJsonValue(Json::Value root)
Load Json::JsonValue into this object.
virtual Json::Value JsonValue()=0
Generate Json::JsonValue for this object.
bool has_audio
Determines if this effect manipulates the audio of a frame.
std::string Json()
Get and Set JSON methods.
std::string Id()
Get basic properties.
float Position()
Get position on timeline (in seconds)
float start
The position in seconds to start playing (used to trim the beginning of a clip)
virtual void SetJsonValue(Json::Value root)=0
Load Json::JsonValue into this object.
Json::Value add_property_choice_json(std::string name, int value, int selected_value)
Generate JSON choice for a property (dropdown properties)
Json::Value JsonValue()
Generate Json::JsonValue for this object.
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
void SetJson(std::string value)
Load JSON string into this object.
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.
This namespace is the default namespace for all code in the openshot library.
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.
Deinterlace()
Blank constructor, useful when using Json to load the effect properties.
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...
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.