100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
from PIL import Image, ImageDraw
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from PyQt4 import uic, QtGui, QtCore
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import os, subprocess
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from . import __base__
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class Component(__base__.Component):
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'''Video'''
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def widget(self, parent):
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self.parent = parent
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self.settings = parent.settings
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page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'video.ui'))
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self.videoPath = ''
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self.x = 0
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self.y = 0
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page.lineEdit_video.textChanged.connect(self.update)
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page.pushButton_video.clicked.connect(self.pickVideo)
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self.page = page
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return page
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def update(self):
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self.videoPath = self.page.lineEdit_video.text()
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self.parent.drawPreview()
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def previewRender(self, previewWorker):
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self.width = int(previewWorker.core.settings.value('outputWidth'))
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self.height = int(previewWorker.core.settings.value('outputHeight'))
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frames = self.getVideoFrames(True)
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if frames:
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im = Image.open(frames[0])
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im = self.resize(im)
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return im
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else:
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return Image.new("RGBA", (self.width, self.height), (0, 0, 0, 0))
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def preFrameRender(self, **kwargs):
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super().__init__(**kwargs)
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self.width = int(self.worker.core.settings.value('outputWidth'))
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self.height = int(self.worker.core.settings.value('outputHeight'))
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self.frames = self.getVideoFrames()
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def frameRender(self, moduleNo, frameNo):
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i = frameNo if frameNo < len(self.frames)-1 else len(self.frames)-1
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im = Image.open(self.frames[i])
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im = self.resize(im)
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return im
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def loadPreset(self, pr):
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self.page.lineEdit_video.setText(pr['video'])
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def savePreset(self):
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return {
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'video' : self.videoPath,
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}
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def cancel(self):
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self.canceled = True
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def reset(self):
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self.canceled = False
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def pickVideo(self):
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imgDir = self.settings.value("backgroundDir", os.path.expanduser("~"))
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filename = QtGui.QFileDialog.getOpenFileName(self.page,
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"Choose Video", imgDir, "Video Files (*.mp4)")
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if filename:
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self.settings.setValue("backgroundDir", os.path.dirname(filename))
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self.page.lineEdit_video.setText(filename)
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self.update()
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def getVideoFrames(self, firstOnly=False):
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# recreate the temporary directory so it is empty
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# FIXME: don't dump too many frames at once
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if not self.videoPath:
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return
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self.parent.core.deleteTempDir()
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os.mkdir(self.parent.core.tempDir)
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if firstOnly:
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filename = 'preview%s.jpg' % os.path.basename(self.videoPath).split('.', 1)[0]
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options = '-ss 10 -vframes 1'
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else:
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filename = '$frame%05d.jpg'
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options = ''
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subprocess.call( \
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'%s -i "%s" -y %s "%s"' % ( \
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self.parent.core.FFMPEG_BIN,
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self.videoPath,
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options,
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os.path.join(self.parent.core.tempDir, filename)
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),
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shell=True
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)
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return sorted([os.path.join(self.parent.core.tempDir, f) for f in os.listdir(self.parent.core.tempDir)])
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def resize(self, im):
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if im.size != (self.width, self.height):
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im = im.resize((self.width, self.height), Image.ANTIALIAS)
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return im
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