37 Wave::Wave() : wavelength(0.06), amplitude(0.3), multiplier(0.2), shift_x(0.0), speed_y(0.2) {
39 init_effect_details();
44 : wavelength(wavelength), amplitude(amplitude), multiplier(multiplier), shift_x(shift_x), speed_y(speed_y)
47 init_effect_details();
51 void Wave::init_effect_details()
67 std::shared_ptr<openshot::Frame>
Wave::GetFrame(std::shared_ptr<openshot::Frame> frame, int64_t frame_number)
70 std::shared_ptr<QImage> frame_image = frame->GetImage();
73 const unsigned char *original_pixels = (
unsigned char *) frame_image->constBits();
74 unsigned char *pixels = (
unsigned char *) frame_image->bits();
75 int pixel_count = frame_image->width() * frame_image->height();
78 double time = frame_number;
86 #pragma omp parallel for 87 for (
int pixel = 0; pixel < pixel_count; ++pixel)
90 int Y = pixel / frame_image->width();
93 float noiseVal = (100 + Y * 0.001) * multiplier_value;
94 float noiseAmp = noiseVal * amplitude_value;
95 float waveformVal = sin((Y * wavelength_value) + (time * speed_y_value));
96 float waveVal = (waveformVal + shift_x_value) * noiseAmp;
98 long unsigned int source_px = round(pixel + waveVal);
101 if (source_px >= pixel_count)
102 source_px = pixel_count - 1;
105 memcpy(&pixels[pixel * 4], &original_pixels[source_px * 4],
sizeof(
char) * 4);
145 catch (
const std::exception& e)
148 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
159 if (!root[
"wavelength"].isNull())
161 if (!root[
"amplitude"].isNull())
163 if (!root[
"multiplier"].isNull())
165 if (!root[
"shift_x"].isNull())
167 if (!root[
"speed_y"].isNull())
176 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
177 root[
"position"] =
add_property_json(
"Position",
Position(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
179 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
180 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
181 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
194 return root.toStyledString();
std::string PropertiesJSON(int64_t requested_frame) const override
std::string Id() const
Get the Id of this clip object.
float Start() const
Get start position (in seconds) of clip (trim start of video)
virtual void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
std::string Json() const override
Generate JSON string of this object.
Header file for Wave effect class.
void SetJson(const std::string value) override
Load JSON string into this object.
const Json::Value stringToJson(const std::string value)
virtual Json::Value JsonValue() const
Generate Json::Value for this object.
void SetJsonValue(const Json::Value root) override
Load Json::Value into this object.
Wave()
Default constructor, useful when using Json to load the effect properties.
bool has_audio
Determines if this effect manipulates the audio of a frame.
Header file for all Exception classes.
Keyframe wavelength
The length of the wave.
std::shared_ptr< openshot::Frame > GetFrame(int64_t frame_number) override
This method is required for all derived classes of ClipBase, and returns a new openshot::Frame object...
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
float Duration() const
Get the length of this clip (in seconds)
void SetJsonValue(const Json::Value root)
Load Json::Value into this object.
Json::Value JsonValue() const override
Generate Json::Value for this object.
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.
Keyframe speed_y
Speed of the wave on the Y-axis.
std::string parent_effect_id
Id of the parent effect (if there is one)
float Position() const
Get position on timeline (in seconds)
float End() const
Get end position (in seconds) of clip (trim end of video)
Keyframe shift_x
Amount to shift X-axis.
Keyframe amplitude
The height of the wave.
A Keyframe is a collection of Point instances, which is used to vary a number or property over time...
Keyframe multiplier
Amount to multiply the wave (make it bigger)
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.