26 fft_size(fft_size), hop_size(hop_size),
27 window_type(window_type),
stft(*this)
30 init_effect_details();
34 void Whisperization::init_effect_details()
42 info.
description =
"Transform the voice present in an audio track into a whispering voice effect.";
51 const std::lock_guard<std::recursive_mutex> lock(
mutex);
52 ScopedNoDenormals noDenormals;
54 const int num_input_channels = frame->audio->getNumChannels();
55 const int num_output_channels = frame->audio->getNumChannels();
56 const int num_samples = frame->audio->getNumSamples();
57 const int hop_size_value = 1 << ((int)
hop_size + 1);
58 const int fft_size_value = 1 << ((int)
fft_size + 5);
71 void Whisperization::WhisperizationEffect::modification(
const int channel)
73 fft->perform(time_domain_buffer, frequency_domain_buffer,
false);
75 for (
int index = 0; index <
fft_size / 2 + 1; ++index) {
76 float magnitude = abs(frequency_domain_buffer[index]);
77 float phase = 2.0f * M_PI * (float)rand() / (float)RAND_MAX;
79 frequency_domain_buffer[index].real(magnitude * cosf(phase));
80 frequency_domain_buffer[index].imag(magnitude * sinf(phase));
82 if (index > 0 && index <
fft_size / 2) {
83 frequency_domain_buffer[
fft_size - index].real(magnitude * cosf (phase));
84 frequency_domain_buffer[
fft_size - index].imag(magnitude * sinf (-phase));
88 fft->perform(frequency_domain_buffer, time_domain_buffer,
true);
123 catch (
const std::exception& e)
126 throw InvalidJSON(
"JSON is invalid (missing keys or invalid data types)");
136 if (!root[
"fft_size"].isNull())
139 if (!root[
"hop_size"].isNull())
142 if (!root[
"window_type"].isNull())
151 root[
"id"] =
add_property_json(
"ID", 0.0,
"string",
Id(), NULL, -1, -1,
true, requested_frame);
153 root[
"start"] =
add_property_json(
"Start",
Start(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
154 root[
"end"] =
add_property_json(
"End",
End(),
"float",
"", NULL, 0, 1000 * 60 * 30,
false, requested_frame);
155 root[
"duration"] =
add_property_json(
"Duration",
Duration(),
"float",
"", NULL, 0, 1000 * 60 * 30,
true, requested_frame);
182 return root.toStyledString();
Json::Value JsonValue() const override
Generate Json::Value for this object.
Whisperization()
Default constructor.
std::string Id() const
Get the Id of this clip object.
void updateParameters(const int new_fft_size, const int new_overlap, const int new_window_type)
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::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...
virtual float End() const
Get end position (in seconds) of clip (trim end of video)
FFTSize
This enumeration determines the FFT size.
const Json::Value stringToJson(const std::string value)
openshot::WindowType window_type
virtual Json::Value JsonValue() const
Generate Json::Value for this object.
void setup(const int num_input_channels)
bool has_audio
Determines if this effect manipulates the audio of a frame.
openshot::FFTSize fft_size
Header file for all Exception classes.
Header file for Frame class.
std::string PropertiesJSON(int64_t requested_frame) const override
Header file for whisperization audio effect class.
Json::Value add_property_choice_json(std::string name, int value, int selected_value) const
Generate JSON choice for a property (dropdown properties)
std::string class_name
The class name of the effect.
std::string name
The name of the effect.
This class adds a whisperization effect into the audio.
float Duration() const
Get the length of this clip (in seconds)
HopSize
This enumeration determines the hop size.
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.
void SetJson(const std::string value) override
Load JSON string into this object.
bool has_video
Determines if this effect manipulates the image of a frame.
Exception for invalid JSON.
WindowType
This enumeration determines the window type.
std::string Json() const override
Generate JSON string of this object.
WhisperizationEffect stft
std::unique_ptr< juce::dsp::FFT > fft
void SetJsonValue(const Json::Value root) override
Load Json::Value into this object.
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.
std::recursive_mutex mutex
int Layer() const
Get layer of clip on timeline (lower number is covered by higher numbers)
EffectInfoStruct info
Information about the current effect.
void process(juce::AudioBuffer< float > &block)
openshot::HopSize hop_size