diff options
Diffstat (limited to 'components/original.py')
| -rw-r--r-- | components/original.py | 121 |
1 files changed, 63 insertions, 58 deletions
diff --git a/components/original.py b/components/original.py index bebfdf2..382c3ab 100644 --- a/components/original.py +++ b/components/original.py @@ -4,6 +4,8 @@ from PyQt4 import uic, QtGui from PyQt4.QtGui import QColor import os, random from . import __base__ +import time +from copy import copy class Component(__base__.Component): @@ -47,20 +49,24 @@ class Component(__base__.Component): spectrum = numpy.fromfunction(lambda x: 0.008*(x-128)**2, (255,), dtype="int16") width = int(previewWorker.core.settings.value('outputWidth')) height = int(previewWorker.core.settings.value('outputHeight')) - return drawBars(width, height, spectrum, self.visColor, self.layout) + return self.drawBars(width, height, spectrum, self.visColor, self.layout) def preFrameRender(self, **kwargs): super().preFrameRender(**kwargs) self.smoothConstantDown = 0.08 self.smoothConstantUp = 0.8 self.lastSpectrum = None - + self.spectrumArray = {} + + for i in range(0, len(self.completeAudioArray), self.sampleSize): + self.lastSpectrum = self.transformData(i, self.completeAudioArray, self.sampleSize, + self.smoothConstantDown, self.smoothConstantUp, self.lastSpectrum) + self.spectrumArray[i] = copy(self.lastSpectrum) + def frameRender(self, moduleNo, frameNo): - self.lastSpectrum = transformData(frameNo, self.completeAudioArray, self.sampleSize, - self.smoothConstantDown, self.smoothConstantUp, self.lastSpectrum) width = int(self.worker.core.settings.value('outputWidth')) height = int(self.worker.core.settings.value('outputHeight')) - return drawBars(width, height, self.lastSpectrum, self.visColor, self.layout) + return self.drawBars(width, height, self.spectrumArray[frameNo], self.visColor, self.layout) def pickColor(self): RGBstring, btnStyle = super().pickColor() @@ -69,71 +75,70 @@ class Component(__base__.Component): self.page.lineEdit_visColor.setText(RGBstring) self.page.pushButton_visColor.setStyleSheet(btnStyle) -def transformData(i, completeAudioArray, sampleSize, smoothConstantDown, smoothConstantUp, lastSpectrum): - if len(completeAudioArray) < (i + sampleSize): - sampleSize = len(completeAudioArray) - i - numpy.seterr(divide='ignore') - window = numpy.hanning(sampleSize) - data = completeAudioArray[i:i+sampleSize][::1] * window - paddedSampleSize = 2048 - paddedData = numpy.pad(data, (0, paddedSampleSize - sampleSize), 'constant') - spectrum = numpy.fft.fft(paddedData) - sample_rate = 44100 - frequencies = numpy.fft.fftfreq(len(spectrum), 1./sample_rate) + def transformData(self, i, completeAudioArray, sampleSize, smoothConstantDown, smoothConstantUp, lastSpectrum): + if len(completeAudioArray) < (i + sampleSize): + sampleSize = len(completeAudioArray) - i - y = abs(spectrum[0:int(paddedSampleSize/2) - 1]) + window = numpy.hanning(sampleSize) + data = completeAudioArray[i:i+sampleSize][::1] * window + paddedSampleSize = 2048 + paddedData = numpy.pad(data, (0, paddedSampleSize - sampleSize), 'constant') + spectrum = numpy.fft.fft(paddedData) + sample_rate = 44100 + frequencies = numpy.fft.fftfreq(len(spectrum), 1./sample_rate) - # filter the noise away - # y[y<80] = 0 + y = abs(spectrum[0:int(paddedSampleSize/2) - 1]) - y = 20 * numpy.log10(y) - y[numpy.isinf(y)] = 0 + # filter the noise away + # y[y<80] = 0 - if lastSpectrum is not None: - lastSpectrum[y < lastSpectrum] = y[y < lastSpectrum] * smoothConstantDown + lastSpectrum[y < lastSpectrum] * (1 - smoothConstantDown) - lastSpectrum[y >= lastSpectrum] = y[y >= lastSpectrum] * smoothConstantUp + lastSpectrum[y >= lastSpectrum] * (1 - smoothConstantUp) - else: - lastSpectrum = y + y = 20 * numpy.log10(y) + y[numpy.isinf(y)] = 0 - x = frequencies[0:int(paddedSampleSize/2) - 1] + if lastSpectrum is not None: + lastSpectrum[y < lastSpectrum] = y[y < lastSpectrum] * smoothConstantDown + lastSpectrum[y < lastSpectrum] * (1 - smoothConstantDown) + lastSpectrum[y >= lastSpectrum] = y[y >= lastSpectrum] * smoothConstantUp + lastSpectrum[y >= lastSpectrum] * (1 - smoothConstantUp) + else: + lastSpectrum = y - return lastSpectrum - -def drawBars(width, height, spectrum, color, layout): - vH = height-height/8 - bF = width / 64 - bH = bF / 2 - bQ = bF / 4 - imTop = Image.new("RGBA", (width, height),(0,0,0,0)) - draw = ImageDraw.Draw(imTop) - r, g, b = color - color2 = (r, g, b, 125) + x = frequencies[0:int(paddedSampleSize/2) - 1] + + return lastSpectrum - bP = height / 1200 + def drawBars(self, width, height, spectrum, color, layout): + vH = height-height/8 + bF = width / 64 + bH = bF / 2 + bQ = bF / 4 + imTop = Image.new("RGBA", (width, height),(0,0,0,0)) + draw = ImageDraw.Draw(imTop) + r, g, b = color + color2 = (r, g, b, 125) - for j in range(0, 63): - draw.rectangle((bH + j * bF, vH+bQ, bH + j * bF + bF, vH + bQ - spectrum[j * 4] * bP - bH), fill=color2) - draw.rectangle((bH + bQ + j * bF, vH , bH + bQ + j * bF + bH, vH - spectrum[j * 4] * bP), fill=color) + bP = height / 1200 + for j in range(0, 63): + draw.rectangle((bH + j * bF, vH+bQ, bH + j * bF + bF, vH + bQ - spectrum[j * 4] * bP - bH), fill=color2) + draw.rectangle((bH + bQ + j * bF, vH , bH + bQ + j * bF + bH, vH - spectrum[j * 4] * bP), fill=color) - imBottom = imTop.transpose(Image.FLIP_TOP_BOTTOM) + imBottom = imTop.transpose(Image.FLIP_TOP_BOTTOM) - im = Image.new("RGBA", (width, height),(0,0,0,0)) + im = Image.new("RGBA", (width, height),(0,0,0,0)) - if layout == 0: - y = 0 - int(height/100*43) - im.paste(imTop, (0, y), mask=imTop) - y = 0 + int(height/100*43) - im.paste(imBottom, (0, y), mask=imBottom) + if layout == 0: + y = 0 - int(height/100*43) + im.paste(imTop, (0, y), mask=imTop) + y = 0 + int(height/100*43) + im.paste(imBottom, (0, y), mask=imBottom) - if layout == 1: - y = 0 + int(height/100*10) - im.paste(imTop, (0, y), mask=imTop) - y = 0 - int(height/100*10) - im.paste(imBottom, (0, y), mask=imBottom) + if layout == 1: + y = 0 + int(height/100*10) + im.paste(imTop, (0, y), mask=imTop) + y = 0 - int(height/100*10) + im.paste(imBottom, (0, y), mask=imBottom) - if layout == 2: - y = 0 + int(height/100*10) - im.paste(imTop, (0, y), mask=imTop) + if layout == 2: + y = 0 + int(height/100*10) + im.paste(imTop, (0, y), mask=imTop) - return im + return im |