Mercurial > hg > nsaunier > traffic-intelligence

annotate scripts/play-synced-videos.py @ 1106:799ef82caa1a v0.2.4

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added code to compute bounding rectangle around each user
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Fri, 15 Mar 2019 15:58:37 -0400
parents cc5cb04b04b0
children
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933670761a57 updated code to python 3 (tests pass and scripts run, but non-executed parts of code are probably still not correct)
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1 #! /usr/bin/env python3
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3 import sys, argparse, os.path
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4 from datetime import datetime, timedelta
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cc5cb04b04b0 major update using the trafficintelligence package name and install through pip
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6 from trafficintelligence import cvutils, utils
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7 from trafficintelligence.metadata import connectDatabase, Site, CameraView, VideoSequence, getSite
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8
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9 timeConverter = utils.TimeConverter()
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10
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11 parser = argparse.ArgumentParser(description='The program displays several views of the same site synchronously.')
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12 parser.add_argument('--db', dest = 'metadataFilename', help = 'name of the metadata file', required = True)
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13 parser.add_argument('-n', dest = 'siteId', help = 'site id or site name', required = True)
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14 parser.add_argument('-f', dest = 'startTime', help = 'time to start playing (format %%Y-%%m-%%d %%H:%%M:%%S, eg 2011-06-22 10:00:39)', required = True, type = timeConverter.convert)
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15 parser.add_argument('--fps', dest = 'frameRate', help = 'approximate frame rate to replay', default = -1, type = float)
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16 parser.add_argument('-r', dest = 'rescale', help = 'rescaling factor for the displayed image', default = 1., type = float)
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17 parser.add_argument('-s', dest = 'step', help = 'display every s image', default = 1, type = int)
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19 args = parser.parse_args()
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21 session = connectDatabase(args.metadataFilename)
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23 site = getSite(session, args.siteId)
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24 if site is None:
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25 print('Site {} was not found in {}. Exiting'.format(args.siteId, args.metadataFilename))
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26 sys.exit()
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27 else:
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28 site = site[0]
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30 dirname = os.path.split(args.metadataFilename)[0]
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32 startTime = datetime.strptime(args.startTime, utils.datetimeFormat)
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33 cameraViews = session.query(CameraView).filter(CameraView.site == site)
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34 videoSequences = session.query(VideoSequence).filter(VideoSequence.name != None).filter(VideoSequence.startTime <= startTime).all()
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35 #videoSequences = session.query(VideoSequence).filter(VideoSequence.site == site).filter(VideoSequence.startTime <= startTime).all()
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36 videoSequences = [v for v in videoSequences if v.containsInstant(startTime) and v.cameraView in cameraViews]
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37 filenames = [dirname+os.path.sep+v.getVideoSequenceFilename() for v in videoSequences]
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38 firstFrameNums = [v.getFrameNum(startTime) for v in videoSequences]
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40 cvutils.playVideo(filenames, [v.cameraView.description for v in videoSequences], firstFrameNums, args.frameRate, rescale = args.rescale, step = args.step)