This file is indexed.

/usr/bin/avg_showcamera is in python-libavg 1.8.1-2.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
#! /usr/bin/python
# -*- coding: utf-8 -*-

# libavg - Media Playback Engine.
# Copyright (C) 2003-2014 Ulrich von Zadow
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# Current versions can be found at www.libavg.de

import time
from libavg import avg, player
from libavg import parsecamargs
from libavg import app

usage = """%prog [options]

avg_showcamera.py shows the images captured by a camera attached to the
system. Its main use is to find out which parameters - device names,
image formats, framerates, etc. can be used with the camera(s)."""


class ShowCamera(app.MainDiv):
    def onArgvParserCreated(self, parser):
        parser.set_usage(usage)
        parsecamargs.addOptions(parser)
        parser.add_option("-l", "--list", dest="list",
                action="store_true", default=False,
                help="lists informations about detected cameras")
        parser.add_option("-s", "--noinfo", dest="noinfo",
                action="store_true", default=False,
                help="don't show any info overlayed on the screen")
        parser.add_option("-r", "--resetbus", dest="resetbus",
                action="store_true", default=False,
                help="reset the firewire bus")

    def onArgvParsed(self, options, args, parser):
        if options.list:
            infoList = list()
            infoList = avg.CameraNode.getCamerasInfos()
            if (len(infoList) <= 0):
                print "No camera available!"
            for info in infoList:
                print ""
                print "##################",info.driver,"##################"
                print "Device ID:", info.deviceID
                print ""
                print "----------------- FORMATS ------------------"
                formatsList = list()
                formatsList = info.imageFormats
                for format in formatsList:
                    print "++++"
                    print "Pixelformat:", format.pixelFormat
                    print "Resolution:", format.size
                    print "Framerates: |",
                    framerateList = list()
                    framerateList = format.framerates
                    for framerate in framerateList:
                        print framerate, "|",
                    print ""
                print ""
                print "----------------- CONTROLS -----------------"
                controlsList = list()
                controlsList = info.controls
                for control in controlsList:
                    print "++++", control.controlName
                    print "Min:" , control.min, "| Max:", control.max,
                    print "| Default:", control.default
                print ""
            exit(0)

        if options.resetbus:
            avg.logger.info("Resetting firewire bus.")
            avg.CameraNode.resetFirewireBus()
            time.sleep(1)
            if not options.driver:
                exit(0)

        if options.driver is None and not options.list and not options.resetbus:
            parser.print_help()
            print
            print "ERROR: at least '--driver', '--list' or '--resetbus' options " \
                  "must be specified"
            exit(1)

        self.optdict = {}
        for attr in dir(options):
            if attr[0] != '_':
                self.optdict[attr] = eval("options.%s" %attr)

        self.settings.set("app_resolution", "%dx%d" %(options.width, options.height))

    def onInit(self):
        self.curFrame = 0

        avg.logger.info("Creating camera:")
        avg.logger.info("driver=%(driver)s device=%(device)s" %self.optdict)
        avg.logger.info( 
                "width=%(width)d height=%(height)d pixelformat=%(pixelFormat)s" 
                %self.optdict)
        avg.logger.info("unit=%(unit)d framerate=%(framerate)d fw800=%(fw800)s"
                %self.optdict)

        self.camNode = avg.CameraNode(driver=self.optdict["driver"],
                device=self.optdict["device"], unit=self.optdict["unit"],
                fw800=self.optdict["fw800"], framerate=self.optdict["framerate"],
                capturewidth=self.optdict["width"], captureheight=self.optdict["height"],
                pixelformat=self.optdict["pixelFormat"], parent=self)

        if not self.optdict["noinfo"]:
            self.infoText = ("Driver=%(driver)s (dev=%(device)s unit=%(unit)d) "
                    "%(width)dx%(height)d@%(framerate)f" %self.optdict)
            avg.WordsNode(text=self.infoText, color="ff3333", pos=(5,5), fontsize=14, 
                    rawtextmode=True, parent=self)
            self.frameText = avg.WordsNode(color="ff3333", pos=(5,25), fontsize=14,
                    parent=self)
        else:
            self.frameText = None

        self.setupKeys()

        self.camNode.play()
        player.setTimeout(100, self.checkCamera)

    def onFrame(self):
        if self.frameText:
            self.curFrame += 1
            self.frameText.text = "%(cam)d/%(app)d" \
                    %{"cam":self.camNode.framenum, "app":self.curFrame}

    def checkCamera(self):
        if not(self.camNode.isAvailable()):
            avg.logger.error("Could not open camera")
            exit(1)

    def setupKeys(self):
        def setWhitebalance():
            print "Setting whitebalance"
            self.camNode.doOneShotWhitebalance()

        def addWhitebalance(du = 0, dv = 0):
            self.camNode.setWhitebalance(self.camNode.getWhitebalanceU() + du, 
                    self.camNode.getWhitebalanceV() + dv)
            print ("u:", self.camNode.getWhitebalanceU(), "v:",
                    self.camNode.getWhitebalanceV())
        
        def addGain(gain):
            self.camNode.gain += gain
            print "gain:", self.camNode.gain
        
        def addShutter(shutter):
            self.camNode.shutter += shutter
            print "shutter:", self.camNode.shutter

        app.keyboardmanager.bindKeyDown(keystring="w",
                handler=setWhitebalance,
                help="Execute whitebalance")

        app.keyboardmanager.bindKeyDown(keystring="1",
                handler=lambda: addWhitebalance(du = -1),
                help="Decrease whitebalance u")
        app.keyboardmanager.bindKeyDown(keystring="2",
                handler=lambda: addWhitebalance(du = 1),
                help="Increase whitebalance u")
        app.keyboardmanager.bindKeyDown(keystring="3",
                handler=lambda: addWhitebalance(dv = -1),
                help="Decrease whitebalance v")
        app.keyboardmanager.bindKeyDown(keystring="4",
                handler=lambda: addWhitebalance(dv = 1),
                help="Increase whitebalance v")

        app.keyboardmanager.bindKeyDown(keystring="left",
                handler=lambda: addShutter(shutter = -1),
                help="Decrease shutter")
        app.keyboardmanager.bindKeyDown(keystring="right",
                handler=lambda: addShutter(shutter = 1),
                help="Increase shutter")

        app.keyboardmanager.bindKeyDown(keystring="up",
                handler=lambda: addGain(gain = 1),
                help="Increase gain")
        app.keyboardmanager.bindKeyDown(keystring="down",
                handler=lambda: addGain(gain = -1),
                help="Decrease gain")


if __name__ == "__main__":
    app.App().run(ShowCamera())