[mythtv-users] using mythtv as clockradio

[Hika van den Hoven]

Hoi Hika,

Thursday, January 21, 2016, 1:24:06 AM, you wrote:

> It is not by far ideal but. It at present it always sends a select
> after starting Live TV etc. So if the Guide is not enabled it is very
> inefficient!

> start_live_tv.py

> #!/usr/bin/env python2
> # -*- coding: utf-8 -*-

> import argparse, socket, urllib2, sys, re, traceback, time
> from xml.etree import cElementTree as ET

> def read_commandline():
>     parser = argparse.ArgumentParser(description='Start LiveTV on the (optionaly) given channel.')

>     parser.add_argument('-f', '--host', type=str, required=False,
>         metavar='<hostname>', default=socket.gethostname(), dest = 'host',
>         help='frontend dns hostname/ip-address, defaults to the local hostname')

>     parser.add_argument('-p', '--portnumber', type=int, required=False,
>         metavar='<portnr>', default=6547, dest = 'port',
>         help='the frontend api portnumber, default is 6547')

>     parser.add_argument('-c', '--channel', type=int, required=False,
>         metavar='<channelnr>', default=None, dest = 'channel',
>         help='the tv/radio channel to tune to')

>     #~ parser.add_argument('-v', '--verbose', action='store_true', dest = 'verbose',
>         #~ required=False, help='print the result to the screen')

>     try:
>         return parser.parse_args()

>     except:
>         return

> def is_idle(host, port):
>     url = 'http://%s:%s/Frontend/GetStatus' % (host, port)

>     try:
>         #~ print urllib2.urlopen(url).read().decode('utf-8', 'ignore')
>         response = ET.parse(urllib2.urlopen(url))
>         for val in response.findall('./State/String'):
>             if val.findtext('Key') == 'state':
>                 return (val.findtext('Value') == 'idle')

>     except:
>         sys.stderr.write('An unexpected error has occured:\n')
>         sys.stderr.write(traceback.format_exc())

> def send_action(host, port, api_call):
>     url = 'http://%s:%s/Frontend/SendAction?Action=%s' % (host,
> port, re.sub(' ', '%20', api_call))

>     try:
>         response = ET.parse(urllib2.urlopen(url))
>         return response.findtext('.')

>     except:
>         sys.stderr.write('An unexpected error has occured:\n')
>         sys.stderr.write(traceback.format_exc())

> def main():
>     try:
>         args = read_commandline()
>         if args == None:
>             return(0)

>         if not is_idle(args.host, args.port):
>             sys.stderr.write('The Frontend %s is busy or otherwise unavailable\n' % args.host)
>             return(2)


>         if send_action(args.host, args.port, 'Live TV') != 'true':
>             sys.stderr.write('The Frontend %s returned False on starting Live TV:\n' % args.host)

>         time.sleep(2)
>         send_action(args.host, args.port, 'SELECT')
>         time.sleep(2)
>         if args.channel != None:
>             ch = str(args.channel)
>             for chn in ch:
>                 send_action(args.host, args.port, chn)
>                 send_action(args.host, args.port, 'SELECT')

>     except:
>         sys.stderr.write('An unexpected error has occured:\n')
>         sys.stderr.write(traceback.format_exc())

>         return(99)

>     # and return success
>     return(0)
> # end main()

> # allow this to be a module
> if __name__ == '__main__':
>     sys.exit(main())

small correction on the end of the script

>         time.sleep(2)
>         if args.channel != None:
>             ch = str(args.channel)
>             for chn in ch:
>                 send_action(args.host, args.port, chn)
>                 send_action(args.host, args.port, 'SELECT')

should be:

         time.sleep(2)
         if args.channel != None:
             ch = str(args.channel)
             for chn in ch:
                 send_action(args.host, args.port, chn)

             send_action(args.host, args.port, 'SELECT')


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

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