| 1 | #!/usr/bin/env python |
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| 2 | # |
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| 3 | # myth-chan |
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| 4 | # A wrapper for MythTV external channel changers |
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| 5 | # This is setup to remedy a known audio instability with certian |
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| 6 | # TV Capture devices. |
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| 7 | # |
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| 8 | # Copyright 2009 Nick Fox <nfox@foxmediasystems.com> |
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| 9 | # |
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| 10 | # This program is free software; you can redistribute it and/or modify |
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| 11 | # it under the terms of the GNU General Public License as published by |
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| 12 | # the Free Software Foundation; either version 2 of the License, or |
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| 13 | # (at your option) any later version. |
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| 14 | # |
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| 15 | # This program is distributed in the hope that it will be useful, |
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| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 18 | # GNU General Public License for more details. |
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| 19 | # |
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| 20 | # You should have received a copy of the GNU General Public License |
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| 21 | # along with this program; if not, write to the Free Software |
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| 22 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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| 23 | # MA 02110-1301, USA. |
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| 24 | |
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| 25 | |
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| 26 | # Get python defaults |
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| 27 | import os |
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| 28 | import sys |
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| 29 | from optparse import OptionParser |
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| 30 | import subprocess |
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| 31 | |
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| 32 | |
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| 33 | def main(self): |
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| 34 | # Go Baby GO! |
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| 35 | # Setup the options |
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| 36 | parser = OptionParser() |
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| 37 | parser.add_option("-c", "--dct-channel", nargs=3, help="Use DCT Channel Binary to change channels.\ |
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| 38 | usage: myth-chan <-c | --dct-channel> <port> <video_source> <channel>", dest="dct") |
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| 39 | parser.add_option("-d", "--direct-tv", nargs=4, help="Use the DirectTV external channel changer.\ |
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| 40 | usage: myth-chan <-d | --direct-tv> <set-top-box-type> <port> <video_source> <channel>", dest="dtv") |
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| 41 | |
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| 42 | (options, args) = parser.parse_args() |
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| 43 | |
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| 44 | if options.dct: |
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| 45 | dct_channel(options.dct[0],options.dct[1],options.dct[2]) |
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| 46 | if options.dtv: |
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| 47 | dtv_channel(options.dtv[0],options.dtv[1],options.dtv[2],options.dtv[3]) |
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| 48 | |
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| 49 | def dct_channel(port, vidsrc, chan): |
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| 50 | # Wrapper up and Use the channel binary |
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| 51 | try: |
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| 52 | if os.path.exists("/usr/local/bin/channel"): |
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| 53 | cmd = "/usr/local/bin/channel -p " + port + " " + chan |
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| 54 | subprocess.Popen4(["v4l2-ctl -d " + vidsrc + " --set-audio-input=2"]) |
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| 55 | subprocess.Popen4([cmd]) |
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| 56 | subprocess.Popen4(["v4l2-ctl -d " + vidsrc + " --set-audio-input=1"]) |
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| 57 | else: |
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| 58 | print "/usr/local/bin/channel not found!" |
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| 59 | except: |
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| 60 | print "Channel Binary failed to change channels." |
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| 61 | |
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| 62 | def dtv_channel(stb_type, port, vidsrc, chan): |
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| 63 | # directtv.pl wrapper |
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| 64 | try: |
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| 65 | if os.path.exists("/usr/local/bin/directv.pl"): |
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| 66 | cmd = "/usr/local/bin/directtv.pl port " + port + " box_type " + stb_type + " setup_channel " + chan |
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| 67 | subprocess.Popen4(["v4l2-ctl -d " + vidsrc + " --set-audio-input=2"]) |
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| 68 | subprocess.Popen4([cmd]) |
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| 69 | subprocess.Popen4(["v4l2-ctl -d " + vidsrc + " --set-audio-input=1"]) |
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| 70 | else: |
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| 71 | print "/usr/local/bin/directv.pl not found!" |
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| 72 | except: |
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| 73 | print "directv.pl failed to change channels." |
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| 74 | |
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| 75 | if __name__ == "__main__": |
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| 76 | main(sys.argv[1:]) |
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