109 lines
2.7 KiB
Python
109 lines
2.7 KiB
Python
# coding=utf-8
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__author__ = "Gina Häußge <osd@foosel.net>"
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__license__ = 'GNU Affero General Public License http://www.gnu.org/licenses/agpl.html'
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from printer_webui.settings import settings
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import os
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import threading
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import urllib
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import time
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import subprocess
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import glob
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class Timelapse(object):
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def __init__(self):
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self.imageNumber = None
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self.inTimelapse = False
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self.gcodeFile = None
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self.captureDir = settings().getBaseFolder("timelapse_tmp")
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self.movieDir = settings().getBaseFolder("timelapse")
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self.snapshotUrl = settings().get("webcam", "snapshot")
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def onPrintjobStarted(self, gcodeFile):
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self.startTimelapse(gcodeFile)
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def onPrintjobStopped(self):
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self.stopTimelapse()
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def onPrintjobProgress(self, oldPos, newPos, percentage):
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pass
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def onZChange(self, oldZ, newZ):
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pass
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def startTimelapse(self, gcodeFile):
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self.cleanCaptureDir()
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self.imageNumber = 0
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self.inTimelapse = True
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self.gcodeFile = os.path.basename(gcodeFile)
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def stopTimelapse(self):
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self.createMovie()
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self.imageNumber = None
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self.inTimelapse = False
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def captureImage(self):
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if self.captureDir is None:
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return
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filename = os.path.join(self.captureDir, "tmp_%05d.jpg" % (self.imageNumber))
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self.imageNumber += 1;
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captureThread = threading.Thread(target=self.captureWorker, kwargs={"filename": filename})
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captureThread.start()
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def captureWorker(self, filename):
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urllib.urlretrieve(self.snapshotUrl, filename)
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def createMovie(self):
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ffmpeg = settings().get("webcam", "ffmpeg")
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if ffmpeg is None:
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return
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input = os.path.join(self.captureDir, "tmp_%05d.jpg")
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output = os.path.join(self.movieDir, "%s_%s.mpg" % (os.path.splitext(self.gcodeFile)[0], time.strftime("%Y%m%d%H%M%S")))
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subprocess.call([
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ffmpeg, '-i', input, '-vcodec', 'mpeg2video', '-pix_fmt', 'yuv420p', '-r', '25', '-y',
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'-b:v', '1500k', '-f', 'vob', output
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])
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def cleanCaptureDir(self):
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if not os.path.isdir(self.captureDir):
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return
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for filename in glob.glob(os.path.join(self.captureDir, "*.jpg")):
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os.remove(filename)
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class ZTimelapse(Timelapse):
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def __init__(self):
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Timelapse.__init__(self)
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def onZChange(self, oldZ, newZ):
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self.captureImage()
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class TimedTimelapse(Timelapse):
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def __init__(self, interval=1):
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Timelapse.__init__(self)
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self.interval = interval
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if self.interval < 1:
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self.interval = 1 # force minimum interval of 1s
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self.timerThread = None
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def onPrintjobStarted(self, filename):
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Timelapse.onPrintjobStarted(self, filename)
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if self.timerThread is not None:
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return
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self.timerThread = threading.Thread(target=self.timerWorker)
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self.timerThread.start()
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def timerWorker(self):
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while self.inTimelapse:
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self.captureImage()
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time.sleep(self.interval)
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