[mythtv-users] How to check if a tuner is in use

[Hika van den Hoven]

Hoi Bill,

Wednesday, October 15, 2014, 9:45:50 PM, you wrote:

> On 10/15/2014 02:11 PM, Hika van den Hoven wrote:
> ...
>> parser.add_argument('--host', type=str, required=False, metavar='<hostname>',
>>      help='backend hostname,  default <local hostname>')

> You could just add: default='localhost' to the above. Or,
> leave required=True and on the command line type --host=localhost
> or whatever you choose.

Ah, but I need the 'local hostname' not 'localhost'! That's what
Mythtv uses. Unless you only have one combined machine.

>> URL='http://{}:6544/Dvr/GetEncoderList'.format(host)

> Try the URL developed above (e.g. with your hostname
> where {} is), from a browser to see everything that's
> returned. And there's a lot. E.g. <DisplayName>ATSC-0</DisplayName>
> could be used assuming your cards have unique names.

>> try:
>>          request = 'SELECT `cardid` FROM `capturecard` WHERE `videodevice` = "%s" AND `hostname` = "%s"' \
>>                                  % (card, host)
>>          c = DB.cursor()
>>          c.execute(request)
>>          if c.rowcount == 1:
>>                  for row in c.fetchall():
>>                          cardid = str(row[0])

> One intent of the Services API is to avoid direct access to the
> MythTV DB. I thought that was the intent of the bindings too.
> I'd strive to get rid of the code above.

I'm running 0.27.3 from gentoo, but all I get per encoder on that page
is:
    <Id>1</Id>
    <HostName>GentooServer</HostName>
    <Local>true</Local>
    <Connected>true</Connected>
    <State>7</State>
    <SleepStatus>8</SleepStatus>
    <LowOnFreeSpace>false</LowOnFreeSpace>
and then a lot of info about the recording but no 'Inputs/Input'? So I
see no other way to retrieve it.

>>                          try:
>>                                  response = ET.parse(urlopen(URL))
>>                          except:
>>                                  raise SystemExit('GetEncoderList failed, is the backend running?')
>>                          for element in response.findall('Encoders/Encoder'):
>>                                  if element.findtext('Id') == cardid:
>>                                          print '%s' % (element.findtext('State'))
>                                             break


> Added the break above because once you've found the
> card if interest, there's no reason to keep looking.

Thanks, what I would do in bash or VB. 

> To answer your other question. Yes, import sys and then
> if the script fails, use: sys.exit(2), when the card is
> idle, sys.exit(0) otherwise 1 etc.

Can I return the state? Like:
    state = element.findtext('State')
    sys.exit(state)
or even:
    sys.exit(element.findtext('State'))


Tot mails,
  Hika                            mailto:hikavdh at gmail.com

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Zonder leven is er geen hoop
Het eeuwige dilemma
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