311 lines
11 KiB
Python
311 lines
11 KiB
Python
from PyQt5 import QtCore, QtGui, uic
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from PyQt5.QtCore import pyqtSignal, pyqtSlot
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from PIL import Image, ImageDraw, ImageFont
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from PIL.ImageQt import ImageQt
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import numpy
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import subprocess as sp
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import sys
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import os
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from queue import Queue, PriorityQueue
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from threading import Thread, Event
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import time
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from copy import copy
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import signal
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import core
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from toolkit import openPipe
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class Worker(QtCore.QObject):
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imageCreated = pyqtSignal(['QImage'])
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videoCreated = pyqtSignal()
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progressBarUpdate = pyqtSignal(int)
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progressBarSetText = pyqtSignal(str)
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encoding = pyqtSignal(bool)
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def __init__(self, parent=None):
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QtCore.QObject.__init__(self)
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self.core = core.Core()
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self.core.settings = parent.settings
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self.modules = parent.core.modules
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self.parent = parent
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parent.videoTask.connect(self.createVideo)
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self.sampleSize = 1470 # 44100 / 30 = 1470
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self.canceled = False
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self.error = False
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self.stopped = False
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def renderNode(self):
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while not self.stopped:
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i = self.compositeQueue.get()
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frame = None
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for compNo, comp in reversed(list(enumerate(self.components))):
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if compNo in self.staticComponents and \
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self.staticComponents[compNo] is not None:
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if frame is None:
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frame = self.staticComponents[compNo]
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else:
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frame = Image.alpha_composite(
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frame, self.staticComponents[compNo])
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else:
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if frame is None:
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frame = comp.frameRender(compNo, i[0], i[1])
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else:
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frame = Image.alpha_composite(
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frame, comp.frameRender(compNo, i[0], i[1]))
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self.renderQueue.put([i[0], frame])
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self.compositeQueue.task_done()
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def renderDispatch(self):
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print('Dispatching Frames for Compositing...')
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for i in range(0, len(self.completeAudioArray), self.sampleSize):
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self.compositeQueue.put([i, self.bgI])
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# increment tracked video frame for next iteration
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self.bgI += 1
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def previewDispatch(self):
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background = Image.new("RGBA", (1920, 1080), (0, 0, 0, 0))
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background.paste(Image.open(os.path.join(
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self.core.wd, "background.png")))
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background = background.resize((self.width, self.height))
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while not self.stopped:
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i = self.previewQueue.get()
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if time.time() - self.lastPreview >= 0.06 or i[0] == 0:
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image = copy(background)
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image = Image.alpha_composite(image, i[1])
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self._image = ImageQt(image)
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self.imageCreated.emit(QtGui.QImage(self._image))
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self.lastPreview = time.time()
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self.previewQueue.task_done()
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@pyqtSlot(str, str, list)
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def createVideo(self, inputFile, outputFile, components):
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self.encoding.emit(True)
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self.components = components
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self.outputFile = outputFile
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self.reset()
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self.bgI = 0 # tracked video frame
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self.width = int(self.core.settings.value('outputWidth'))
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self.height = int(self.core.settings.value('outputHeight'))
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progressBarValue = 0
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self.progressBarUpdate.emit(progressBarValue)
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self.progressBarSetText.emit('Loading audio file...')
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self.completeAudioArray = self.core.readAudioFile(inputFile, self)
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# test if user has libfdk_aac
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encoders = sp.check_output(
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self.core.FFMPEG_BIN + " -encoders -hide_banner",
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shell=True)
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encoders = encoders.decode("utf-8")
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acodec = self.core.settings.value('outputAudioCodec')
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options = self.core.encoder_options
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containerName = self.core.settings.value('outputContainer')
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vcodec = self.core.settings.value('outputVideoCodec')
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vbitrate = str(self.core.settings.value('outputVideoBitrate'))+'k'
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acodec = self.core.settings.value('outputAudioCodec')
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abitrate = str(self.core.settings.value('outputAudioBitrate'))+'k'
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for cont in options['containers']:
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if cont['name'] == containerName:
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container = cont['container']
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break
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vencoders = options['video-codecs'][vcodec]
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aencoders = options['audio-codecs'][acodec]
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for encoder in vencoders:
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if encoder in encoders:
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vencoder = encoder
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break
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for encoder in aencoders:
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if encoder in encoders:
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aencoder = encoder
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break
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ffmpegCommand = [
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self.core.FFMPEG_BIN,
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'-thread_queue_size', '512',
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'-y', # overwrite the output file if it already exists.
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'-f', 'rawvideo',
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'-vcodec', 'rawvideo',
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'-s', str(self.width)+'x'+str(self.height), # size of one frame
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'-pix_fmt', 'rgba',
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# frames per second
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'-r', self.core.settings.value('outputFrameRate'),
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'-i', '-', # The input comes from a pipe
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'-an',
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'-i', inputFile,
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'-vcodec', vencoder,
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'-acodec', aencoder, # output audio codec
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'-b:v', vbitrate,
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'-b:a', abitrate,
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'-pix_fmt', self.core.settings.value('outputVideoFormat'),
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'-preset', self.core.settings.value('outputPreset'),
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'-f', container
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]
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if acodec == 'aac':
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ffmpegCommand.append('-strict')
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ffmpegCommand.append('-2')
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ffmpegCommand.append(outputFile)
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# ### Now start creating video for output ###
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numpy.seterr(divide='ignore')
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# Call preFrameRender on all components
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print('Loaded Components:', ", ".join([
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"%s) %s" % (num, str(component))
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for num, component in enumerate(reversed(self.components))
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]))
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self.staticComponents = {}
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numComps = len(self.components)
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for compNo, comp in enumerate(self.components):
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pStr = "Starting components..."
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self.progressBarSetText.emit(pStr)
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properties = None
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properties = comp.preFrameRender(
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worker=self,
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completeAudioArray=self.completeAudioArray,
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sampleSize=self.sampleSize,
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progressBarUpdate=self.progressBarUpdate,
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progressBarSetText=self.progressBarSetText
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)
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if properties and 'static' in properties:
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self.staticComponents[compNo] = copy(
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comp.frameRender(compNo, 0, 0))
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self.progressBarUpdate.emit(100)
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# Create ffmpeg pipe and queues for frames
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self.out_pipe = openPipe(
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ffmpegCommand, stdin=sp.PIPE, stdout=sys.stdout, stderr=sys.stdout)
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self.compositeQueue = Queue()
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self.compositeQueue.maxsize = 20
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self.renderQueue = PriorityQueue()
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self.renderQueue.maxsize = 20
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self.previewQueue = PriorityQueue()
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# Threads to render frames and send them back here for piping out
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self.renderThreads = []
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for i in range(3):
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self.renderThreads.append(
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Thread(target=self.renderNode, name="Render Thread"))
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self.renderThreads[i].daemon = True
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self.renderThreads[i].start()
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self.dispatchThread = Thread(
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target=self.renderDispatch, name="Render Dispatch Thread")
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self.dispatchThread.daemon = True
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self.dispatchThread.start()
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self.previewDispatch = Thread(
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target=self.previewDispatch, name="Render Dispatch Thread")
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self.previewDispatch.daemon = True
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self.previewDispatch.start()
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frameBuffer = {}
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self.lastPreview = 0.0
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self.progressBarUpdate.emit(0)
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pStr = "Exporting video..."
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self.progressBarSetText.emit(pStr)
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if not self.canceled:
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for i in range(0, len(self.completeAudioArray), self.sampleSize):
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while True:
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if i in frameBuffer or self.canceled:
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# if frame's in buffer, pipe it to ffmpeg
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break
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# else fetch the next frame & add to the buffer
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data = self.renderQueue.get()
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frameBuffer[data[0]] = data[1]
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self.renderQueue.task_done()
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if self.canceled:
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break
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try:
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self.out_pipe.stdin.write(frameBuffer[i].tobytes())
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self.previewQueue.put([i, frameBuffer[i]])
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del frameBuffer[i]
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except:
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break
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# increase progress bar value
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if progressBarValue + 1 <= (i / len(self.completeAudioArray)) \
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* 100:
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progressBarValue = numpy.floor(
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(i / len(self.completeAudioArray)) * 100)
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self.progressBarUpdate.emit(progressBarValue)
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pStr = "Exporting video: " + str(int(progressBarValue)) \
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+ "%"
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self.progressBarSetText.emit(pStr)
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numpy.seterr(all='print')
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self.out_pipe.stdin.close()
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if self.out_pipe.stderr is not None:
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print(self.out_pipe.stderr.read())
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self.out_pipe.stderr.close()
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self.error = True
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# out_pipe.terminate() # don't terminate ffmpeg too early
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self.out_pipe.wait()
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if self.canceled:
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print("Export Canceled")
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try:
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os.remove(self.outputFile)
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except:
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pass
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self.progressBarUpdate.emit(0)
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self.progressBarSetText.emit('Export Canceled')
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else:
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if self.error:
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print("Export Failed")
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self.progressBarUpdate.emit(0)
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self.progressBarSetText.emit('Export Failed')
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else:
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print("Export Complete")
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self.progressBarUpdate.emit(100)
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self.progressBarSetText.emit('Export Complete')
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self.error = False
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self.canceled = False
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self.stopped = True
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self.encoding.emit(False)
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self.videoCreated.emit()
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def updateProgress(self, pStr, pVal):
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self.progressBarValue.emit(pVal)
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self.progressBarSetText.emit(pStr)
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def cancel(self):
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self.canceled = True
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self.core.cancel()
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for comp in self.components:
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comp.cancel()
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try:
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self.out_pipe.send_signal(signal.SIGINT)
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except:
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pass
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def reset(self):
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self.core.reset()
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self.canceled = False
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for comp in self.components:
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comp.reset()
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