195 lines
6.7 KiB
Python
195 lines
6.7 KiB
Python
from PIL import Image
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from PyQt5 import QtGui, QtCore, QtWidgets
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from PyQt5.QtGui import QColor
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import os
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import math
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import subprocess
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from component import Component
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from toolkit.frame import BlankFrame, scale
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from toolkit import checkOutput
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from toolkit.ffmpeg import (
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openPipe, closePipe, getAudioDuration, FfmpegVideo, exampleSound
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)
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class Component(Component):
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name = 'Waveform'
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version = '1.0.0'
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def widget(self, *args):
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super().widget(*args)
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self._image = BlankFrame(self.width, self.height)
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self.page.lineEdit_color.setText('255,255,255')
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if hasattr(self.parent, 'window'):
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self.parent.window.lineEdit_audioFile.textChanged.connect(
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self.update
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)
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self.trackWidgets({
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'color': self.page.lineEdit_color,
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'mode': self.page.comboBox_mode,
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'amplitude': self.page.comboBox_amplitude,
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'x': self.page.spinBox_x,
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'y': self.page.spinBox_y,
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'mirror': self.page.checkBox_mirror,
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'scale': self.page.spinBox_scale,
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'opacity': self.page.spinBox_opacity,
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'compress': self.page.checkBox_compress,
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'mono': self.page.checkBox_mono,
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}, colorWidgets={
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'color': self.page.pushButton_color,
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}, relativeWidgets=[
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'x', 'y',
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])
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def previewRender(self):
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self.updateChunksize()
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frame = self.getPreviewFrame(self.width, self.height)
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if not frame:
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return BlankFrame(self.width, self.height)
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else:
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return frame
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def preFrameRender(self, **kwargs):
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super().preFrameRender(**kwargs)
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self.updateChunksize()
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w, h = scale(self.scale, self.width, self.height, str)
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self.video = FfmpegVideo(
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inputPath=self.audioFile,
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filter_=self.makeFfmpegFilter(),
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width=w, height=h,
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chunkSize=self.chunkSize,
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frameRate=int(self.settings.value("outputFrameRate")),
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parent=self.parent, component=self, debug=True,
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)
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def frameRender(self, frameNo):
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if FfmpegVideo.threadError is not None:
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raise FfmpegVideo.threadError
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return self.finalizeFrame(self.video.frame(frameNo))
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def postFrameRender(self):
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closePipe(self.video.pipe)
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def getPreviewFrame(self, width, height):
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genericPreview = self.settings.value("pref_genericPreview")
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startPt = 0
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if not genericPreview:
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inputFile = self.parent.window.lineEdit_audioFile.text()
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if not inputFile or not os.path.exists(inputFile):
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return
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duration = getAudioDuration(inputFile)
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if not duration:
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return
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startPt = duration / 3
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if startPt + 3 > duration:
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startPt += startPt - 3
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command = [
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self.core.FFMPEG_BIN,
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'-thread_queue_size', '512',
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'-r', self.settings.value("outputFrameRate"),
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'-ss', "{0:.3f}".format(startPt),
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'-i',
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os.path.join(self.core.wd, 'background.png')
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if genericPreview else inputFile,
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'-f', 'image2pipe',
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'-pix_fmt', 'rgba',
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]
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command.extend(self.makeFfmpegFilter(preview=True, startPt=startPt))
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command.extend([
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'-an',
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'-s:v', '%sx%s' % scale(self.scale, self.width, self.height, str),
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'-codec:v', 'rawvideo', '-',
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'-frames:v', '1',
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])
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pipe = openPipe(
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command, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE,
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stderr=subprocess.DEVNULL, bufsize=10**8
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)
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byteFrame = pipe.stdout.read(self.chunkSize)
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closePipe(pipe)
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frame = self.finalizeFrame(byteFrame)
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return frame
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def makeFfmpegFilter(self, preview=False, startPt=0):
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w, h = scale(self.scale, self.width, self.height, str)
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if self.amplitude == 0:
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amplitude = 'lin'
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elif self.amplitude == 1:
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amplitude = 'log'
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elif self.amplitude == 2:
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amplitude = 'sqrt'
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elif self.amplitude == 3:
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amplitude = 'cbrt'
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hexcolor = QColor(*self.color).name()
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opacity = "{0:.1f}".format(self.opacity / 100)
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genericPreview = self.settings.value("pref_genericPreview")
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if self.mode < 3:
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filter_ = 'showwaves=r=%s:s=%sx%s:mode=%s:colors=%s@%s:scale=%s' % (
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self.settings.value("outputFrameRate"),
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self.settings.value("outputWidth"),
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self.settings.value("outputHeight"),
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self.page.comboBox_mode.currentText().lower()
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if self.mode != 3 else 'p2p',
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hexcolor, opacity, amplitude,
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)
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elif self.mode > 2:
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filter_ = (
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'showfreqs=s=%sx%s:mode=%s:colors=%s@%s'
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':ascale=%s:fscale=%s' % (
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self.settings.value("outputWidth"),
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self.settings.value("outputHeight"),
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'line' if self.mode == 4 else 'bar',
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hexcolor, opacity, amplitude,
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'log' if self.mono else 'lin'
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)
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)
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return [
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'-filter_complex',
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'%s%s%s'
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'%s%s%s [v1]; '
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'[v1] scale=%s:%s%s [v]' % (
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exampleSound() if preview and genericPreview else '[0:a] ',
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'compand=gain=4,' if self.compress else '',
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'aformat=channel_layouts=mono,'
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if self.mono and self.mode < 3 else '',
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filter_,
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', drawbox=x=(iw-w)/2:y=(ih-h)/2:w=iw:h=4:color=%s@%s' % (
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hexcolor, opacity
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) if self.mode < 2 else '',
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', hflip' if self.mirror else'',
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w, h,
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', trim=duration=%s' % "{0:.3f}".format(startPt + 3)
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if preview else '',
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),
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'-map', '[v]',
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]
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def updateChunksize(self):
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width, height = scale(self.scale, self.width, self.height, int)
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self.chunkSize = 4 * width * height
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def finalizeFrame(self, imageData):
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try:
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image = Image.frombytes(
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'RGBA',
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scale(self.scale, self.width, self.height, int),
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imageData
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)
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self._image = image
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except ValueError:
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image = self._image
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if self.scale != 100 \
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or self.x != 0 or self.y != 0:
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frame = BlankFrame(self.width, self.height)
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frame.paste(image, box=(self.x, self.y))
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else:
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frame = image
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return frame
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