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import numpy as np
cimport numpy as np
from libcpp.vector cimport vector
np.import_array()
dtype = np.float64
ctypedef np.double_t dtype_t
cdef extern from "<string>" namespace "std":
cdef cppclass string:
string()
string(char *)
char * c_str()
cdef extern from "../src/simpl/base.h" namespace "simpl":
cdef cppclass c_Peak "simpl::Peak":
c_Peak()
double amplitude
double frequency
double phase
cdef cppclass c_Frame "simpl::Frame":
c_Frame()
c_Frame(int frame_size)
# peaks
int num_peaks()
int max_peaks()
void max_peaks(int new_max_peaks)
void add_peak(c_Peak* peak)
c_Peak* peak(int peak_number)
void clear()
# partials
# int num_partials()
# int max_partials()
# void max_partials(int new_max_partials)
# void add_partial(Partial partial)
# audio buffers
int size()
void size(int new_size)
void audio(double* new_audio)
double* audio()
void synth(double* new_synth)
double* synth()
void residual(double* new_residual)
double* residual()
void synth_residual(double* new_synth_residual)
double* synth_residual()
cdef cppclass c_PeakDetection "simpl::PeakDetection":
c_PeakDetection()
int sampling_rate()
void sampling_rate(int new_sampling_rate)
int frame_size()
void frame_size(int new_frame_size)
int static_frame_size()
void static_frame_size(int new_static_frame_size)
int next_frame_size()
int hop_size()
void hop_size(int new_hop_size)
int max_peaks()
void max_peaks(int new_max_peaks)
string window_type()
void window_type(string new_window_type)
int window_size()
void window_size(int new_window_size)
double min_peak_separation()
void min_peak_separation(double new_min_peak_separation)
int num_frames()
c_Frame* frame(int frame_number)
vector[c_Peak*] find_peaks_in_frame(c_Frame* frame)
vector[c_Frame*] find_peaks(int audio_size, double* audio)
cdef class Peak:
cdef c_Peak* thisptr
cdef int created
def __cinit__(self, create_new=True):
if create_new:
self.thisptr = new c_Peak()
self.created = True
else:
self.created = False
def __dealloc__(self):
if self.created:
del self.thisptr
cdef set_peak(self, c_Peak* p):
self.thisptr = p
property amplitude:
def __get__(self): return self.thisptr.amplitude
def __set__(self, double x): self.thisptr.amplitude = x
property frequency:
def __get__(self): return self.thisptr.frequency
def __set__(self, double x): self.thisptr.frequency = x
property phase:
def __get__(self): return self.thisptr.phase
def __set__(self, double x): self.thisptr.phase = x
cdef class Frame:
cdef c_Frame* thisptr
cdef int created
def __cinit__(self, size=None, create_new=True):
if create_new:
if size:
self.thisptr = new c_Frame(size)
else:
self.thisptr = new c_Frame()
self.created = True
else:
self.created = False
def __dealloc__(self):
if self.created:
del self.thisptr
cdef set_frame(self, c_Frame* f):
self.thisptr = f
# peaks
property num_peaks:
def __get__(self): return self.thisptr.num_peaks()
property max_peaks:
def __get__(self): return self.thisptr.max_peaks()
def __set__(self, int i): self.thisptr.max_peaks(i)
def add_peak(self, Peak p not None):
self.thisptr.add_peak(p.thisptr)
def add_peaks(self, peaks not None):
for p in peaks:
self.add_peak(p)
def peak(self, int i):
cdef c_Peak* c_p = self.thisptr.peak(i)
p = Peak(False)
p.set_peak(c_p)
return p
property peaks:
def __get__(self):
return [self.peak(i) for i in range(self.thisptr.num_peaks())]
def __set__(self, peaks):
self.add_peaks(peaks)
def clear(self):
self.thisptr.clear()
# audio buffers
property size:
def __get__(self): return self.thisptr.size()
def __set__(self, int i): self.thisptr.size(i)
property audio:
def __get__(self):
cdef np.npy_intp shape[1]
shape[0] = <np.npy_intp> self.thisptr.size()
return np.PyArray_SimpleNewFromData(1, shape, np.NPY_DOUBLE, self.thisptr.audio())
def __set__(self, np.ndarray[dtype_t, ndim=1] a):
self.thisptr.audio(<double*> a.data)
property synth:
def __get__(self):
cdef np.npy_intp shape[1]
shape[0] = <np.npy_intp> self.thisptr.size()
return np.PyArray_SimpleNewFromData(1, shape, np.NPY_DOUBLE, self.thisptr.synth())
def __set__(self, np.ndarray[dtype_t, ndim=1] a):
self.thisptr.synth(<double*> a.data)
property residual:
def __get__(self):
cdef np.npy_intp shape[1]
shape[0] = <np.npy_intp> self.thisptr.size()
return np.PyArray_SimpleNewFromData(1, shape, np.NPY_DOUBLE, self.thisptr.residual())
def __set__(self, np.ndarray[dtype_t, ndim=1] a):
self.thisptr.residual(<double*> a.data)
property synth_residual:
def __get__(self):
cdef np.npy_intp shape[1]
shape[0] = <np.npy_intp> self.thisptr.size()
return np.PyArray_SimpleNewFromData(1, shape, np.NPY_DOUBLE, self.thisptr.synth_residual())
def __set__(self, np.ndarray[dtype_t, ndim=1] a):
self.thisptr.synth_residual(<double*> a.data)
cdef class PeakDetection:
cdef c_PeakDetection* thisptr
def __cinit__(self): self.thisptr = new c_PeakDetection()
def __dealloc__(self): del self.thisptr
property sampling_rate:
def __get__(self): return self.thisptr.sampling_rate()
def __set__(self, int i): self.thisptr.sampling_rate(i)
property frame_size:
def __get__(self): return self.thisptr.frame_size()
def __set__(self, int i): self.thisptr.frame_size(i)
property static_frame_size:
def __get__(self): return self.thisptr.static_frame_size()
def __set__(self, int i): self.thisptr.static_frame_size(i)
def next_frame_size(self):
return self.thisptr.next_frame_size()
property hop_size:
def __get__(self): return self.thisptr.hop_size()
def __set__(self, int i): self.thisptr.hop_size(i)
property max_peaks:
def __get__(self): return self.thisptr.max_peaks()
def __set__(self, int i): self.thisptr.max_peaks(i)
property window_type:
def __get__(self): return self.thisptr.window_type().c_str()
def __set__(self, char* s): self.thisptr.window_type(string(s))
property window_size:
def __get__(self): return self.thisptr.window_size()
def __set__(self, int i): self.thisptr.window_size(i)
property min_peak_separation:
def __get__(self): return self.thisptr.min_peak_separation()
def __set__(self, double d): self.thisptr.min_peak_separation(d)
def frame(self, int i):
cdef c_Frame* c_f = self.thisptr.frame(i)
f = Frame(None, False)
f.set_frame(c_f)
return f
property frames:
def __get__(self):
return [self.frame(i) for i in range(self.thisptr.num_frames())]
def __set__(self, f):
raise Exception("NotImplemented")
def find_peaks_in_frame(self, Frame frame not None):
peaks = []
cdef vector[c_Peak*] c_peaks = self.thisptr.find_peaks_in_frame(frame.thisptr)
for i in range(c_peaks.size()):
peak = Peak(False)
peak.set_peak(c_peaks[i])
peaks.append(peak)
return peaks
def find_peaks(self, np.ndarray[dtype_t, ndim=1] audio):
frames = []
cdef vector[c_Frame*] c_frames = self.thisptr.find_peaks(len(audio), <double*> audio.data)
return frames
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