led-server/server/Effects/MusikEffect.py

249 lines
8.6 KiB
Python

from Utils.BaseEffect import BaseEffect
from Utils.EffectParameter import slider, colorpicker
import time
import sys
import numpy
from time import perf_counter, sleep
from random import randint, shuffle
class MusikEffect(BaseEffect):
name = "musikEffect"
desc = "LED-Band *sollte* nach musik blinken"
# Something that will be used to show descriptions and value options
# of the parameters the effect will accept, in a way, that eg the webclient can decide,
# if the parameters can be toggeled by a button/checkbox/slider/whatever
effectParameters: list = [
# radio(\
# "Shuffle LED to Freq Order",\
# "Off -> Mapping ",\
# [\
# [0,255,255,"red"],\
# [0,255,255,"green"],\
# [0,255,255,"blue"]\
# ]\
# ),\
# slider(\
# "Effect Brightnes",\
# "Choose a brightness for your LED's",\
# [\
# [0,100,100,"brightness"],\
# ]\
# )\
]
def init(self):
self.fft_random_keys = [0,1,2,3]
self.fft_random = [0,0,0,0]
self.y_max_freq_avg_list = []
self.low_freq_avg_list = []
self.bpm_list = []
self.prev_beat = 0 # timestamp
# used by strobe()
self.lastmode = 0
return
#loop effect as long as not stopped
def effect(self):
self.plot_audio_and_detect_beats()
#self.freqtocolor()
#if(time.time() - self.lastTime >= 0.002):
#for RGBStrip in self.effectRGBStrips():
# r= RGBStrip.red-1
# if(r<0):
# r=0
# g= RGBStrip.green-1
# if(g<0):
# g=0
# b= RGBStrip.blue-1
# if(b<0):
# b=0
# RGBStrip.RGB(r,g,b)
#self.lastTime = time.time()
sleep(0.00833333333)
def end(self):
pass
def plot_audio_and_detect_beats(self):
if not self.hasNewFttValues:
return
# get x and y values from FFT
xs, ys = self.ftt
# calculate average for all frequency ranges
y_avg = numpy.mean(ys)
#low_freq = numpy.mean(ys[20:47])
#mid_freq = numpy.mean(ys[88:115])
#hig_freq = numpy.mean(ys[156:184])
low_freq = numpy.mean(ys[0:int(ys.__len__() / 3 * 1)])
mid_freq = numpy.mean(ys[int(ys.__len__() / 3 * 1):int(ys.__len__() / 3 * 2)])
hig_freq = numpy.mean(ys[int(ys.__len__() / 3 * 2):int(ys.__len__() / 3 * 3)])
#get the maximum of all freq
if len(self.y_max_freq_avg_list) < 250 or y_avg > 10 and numpy.amax([low_freq,mid_freq,hig_freq])/2 > numpy.amin(self.y_max_freq_avg_list):
self.y_max_freq_avg_list.append(numpy.amax([low_freq,mid_freq,hig_freq]))
y_max = numpy.amax(self.y_max_freq_avg_list)
#y_max = numpy.mean([numpy.amax(ys),y_max])
#print(low_freq,mid_freq,hig_freq,y_max)
for i,item in enumerate([low_freq,mid_freq,hig_freq]):
if item is None:
item = 0
low = round(low_freq/(y_max+10)*255)
mid = round(mid_freq/(y_max+10)*255)
hig = round(hig_freq/(y_max+10)*255)
#print(low,mid,hig,y_max, numpy.amax(ys), y_avg)
#print("------")
self.fft_random[self.fft_random_keys[0]] = low
self.fft_random[self.fft_random_keys[1]] = mid
self.fft_random[self.fft_random_keys[2]] = hig
self.fft_random[self.fft_random_keys[3]] = 0
# calculate low frequency average
#low_freq = [ys[i] for i in range(len(xs)) if xs[i] < 1000]
low_freq = ys[0:47]
low_freq_avg = numpy.mean(low_freq)
if len(self.low_freq_avg_list) < 250 or low_freq_avg > numpy.amin(self.low_freq_avg_list)/2:
self.low_freq_avg_list.append(low_freq_avg)
cumulative_avg = numpy.mean(self.low_freq_avg_list)
bass = low_freq[:int(len(low_freq)/2)]
bass_avg = numpy.mean(bass)
#print("bass: {:.2f} vs cumulative: {:.2f}".format(bass_avg, cumulative_avg))
# check if there is a beat
# song is pretty uniform across all frequencies
if (y_avg > y_avg/5 and (bass_avg > cumulative_avg * 1.8 or (low_freq_avg < y_avg * 1.2 and bass_avg > cumulative_avg))):
#self.prev_beat
curr_time = perf_counter()
# print(curr_time - self.prev_beat)
if curr_time - self.prev_beat > 60/360*2: # 180 BPM max
shuffle(self.fft_random_keys)
# change the button color
#self.beats_idx += 1
#self.strobe()
#print("beat {}".format(self.beats_idx))
#print("bass: {:.2f} vs cumulative: {:.2f}".format(bass_avg, cumulative_avg))
#print(self.fft_random)
# change the button text
bpm = int(60 / (curr_time - self.prev_beat))
if len(self.bpm_list) < 4:
if bpm > 60:
self.bpm_list.append(bpm)
else:
bpm_avg = int(numpy.mean(self.bpm_list))
if abs(bpm_avg - bpm) < 35:
self.bpm_list.append(bpm)
print("bpm: {:d}".format(bpm_avg))
# reset the timer
self.prev_beat = curr_time
if y_avg > 10:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(
self.fft_random[0],
self.fft_random[1],
self.fft_random[2]
)
"""
rgbStrip: RGBStrip
for rgbStrip in self.effectRGBStrips():
for i in range(rgbStrip.STRIP_LENGHT):
if rgbStrip.STRIP_LENGHT-1-10 is not i:
rgbStrip.WS2812b(rgbStrip.STRIP_LENGHT-i-1, rgbStrip.red[rgbStrip.STRIP_LENGHT-i-2], rgbStrip.green[rgbStrip.STRIP_LENGHT-i-2], rgbStrip.blue[rgbStrip.STRIP_LENGHT-i-2])
else:
rgbStrip.WS2812b(rgbStrip.STRIP_LENGHT-i-1, self.fft_random[0], self.fft_random[1], self.fft_random[2])
rgbStrip.show()
"""
# shorten the cumulative list to account for changes in dynamics
if len(self.low_freq_avg_list) > 500:
self.low_freq_avg_list = self.low_freq_avg_list[250:]
#print("REFRESH!!")
# shorten the cumulative list to account for changes in dynamics
if len(self.y_max_freq_avg_list ) > 500:
self.y_max_freq_avg_list = self.y_max_freq_avg_list[250:]
print("--REFRESH y_max_freq_avg_list")
# keep two 8-counts of BPMs so we can maybe catch tempo changes
if len(self.bpm_list) > 24:
self.bpm_list = self.bpm_list[8:]
# reset song data if the song has stopped
if y_avg < 10:
self.bpm_list = []
self.low_freq_avg_list = []
print("new song")
self.off()
self.hasNewFttValues = False
# print(self.bpm_list)250
def strobe(self):
x = randint(0,5)
while x is self.lastmode:
x = randint(0,5)
self.lastmode = x
r = 255#randint(0,255)
g = 255#randint(0,255)
b = 255#randint(0,255)
if x is 0:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(r,g,0)
if x is 1:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(0,g,b)
if x is 2:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(r,0,b)
if x is 3:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(r,0,0)
if x is 4:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(0,g,0)
if x is 5:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(0,0,b)
if x is 6:
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(r,g,b)
def off(self):
for RGBStrip in self.effectRGBStrips():
RGBStrip.RGB(0,0,0)
def left_rotate(self,arr):
if not arr:
return arr
left_most_element = arr[0]
length = len(arr)
for i in range(length - 1):
arr[i], arr[i + 1] = arr[i + 1], arr[i]
arr[length - 1] = left_most_element
return arr