[mythtv-users] cards vs sources vs inputs confusion, problems and possible bugs
Michael T. Dean
mtdean at thirdcontact.com
Fri Dec 4 17:17:54 UTC 2009
On 12/04/2009 11:14 AM, Eric Sharkey wrote:
> 2009/12/3 Petr Stehlik:
>
>> My amateur suggestion that would hopefully work: when user selects a
>> channum (either by browse mode or directly) don't ask myth to tune to
>> that channum _on_the_current_tuner_ but instead:
>>
>> 1) find out the current program on that channum using EPG data
>> 2) ask the scheduler to suggest the best tuner for recording that
>> program
>> 3) tune live TV to that tuner
>>
> What's wrong with?:
>
> 1) Find a free tuner that has channum
> 2) tune live TV to that tuner
That's how it's supposed to work. Channel numbers are really only for
use as a mechanism to allow a user to specify which channel to watch
during LiveTV. Their only other purpose is display related (i.e.
display info to the user about recordings and specify whether to display
individual channels in the EPG--when 2 channels share the same callsign
and channel number (and content), they're collapsed into a single entry
in the EPG).
Therefore, the channel number is a human-readable/human-rememberable
identifier for a channel. No 2 channels with differing content should
ever be given the same channel number, as doing so would prevent the
user from being able to specify which channel to tune by entering a
channel number in LiveTV. (Similarly, no 2 channels without
"substantially identical" (read "identical") content should ever be
given the same callsign--as the callsign is used to mark 2 channels as
the same/identical channel for scheduling purposes.)
Myth will also attempt to change inputs when required. However, as many
have seen, there may still be some issues related to this (as testing
all the cases with all the different options is extremely difficult).
Mike
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