[mythtv-users] 0.28 MythTV frontend does not display ‘input connection’ ‘display name’ when changing input connection

[Al Esch]

On 12/9/2016 9:20 PM, Robert Watson wrote:
>
> Thanks colonelguf at gmail 
> <http://www.gossamer-threads.com/lists/engine?user=24670;list=mythtv> for 
> the response.
>
> ØI'm still using .27, "c" displays the current input here
>
> First I need to ask you if you multiple input connections? If you only 
> have one *and* you change channel, and end back up on the same channel 
> *and* 0.27 displays the ‘display name’ correctly, you might just end 
> up with the display name. Just want to make sure. See below for more 
> details but for me with my tuners, it takes two presses of "C" to 
> change input connection.
>
> I had a vague recollection that “C” was what I used to display the 
> display name in 0.27 but perhaps I was changing ‘stream’ as well which 
> is *not* what I want if I can avoid it. But according to 
> https://www.mythtv.org/wiki/Keybindings#Watching_TV_or_a_recording, 
> “C” means “change inputs on TV Tuner card”. Looking at the history of 
> the above Wiki page, “C” has *always* had this meaning. I am confused!
>
> The rest of this is about the difference between “C” and “Y”. I 
> suspect this is unrelated to the original post but I don’t see the 
> point very much of these two separate key bindings.
>
> Each time I press “C” in 0.28, screen goes black for one seconds, then 
> ‘info’ section appears in bottom third of the screen as the tuning 
> process takes over. This continues for one second or so and then the 
> video you expect for TV appears. At no time did I see the input 
> connection display name.
>
> When I press “C” again and again, the tuner selected rolls around in a 
> sequence. Keep in mind that the last 3 bytes in general appear to be 
> difficult to predict, but one you have a sequence it doesn’t appear to 
> change until you disturb the sequence buy recording some channel, or 
> changing a channel on some channel through live TV. That is, it 
> generally doesn’t change very often.
>
> The device numbers are for me at the moment are 13,12,4,3,2,1
>
> I have 6 input connections each with ‘Max recordings’ set to 2 so I 
> have an upper limit of 12 concurrent recordings. Because of the lack 
> of display name, I am using option (2) from my original post and 
> taking the first 4 or 5 bytes (i.e. up to but not including) the 
> underscore in the filename and using that to determine which input 
> connection is in use. Keep in mind that this is the concatenation of 
> the ‘device number’ (my term as I don’t know the correct MythTV term) 
> and a logical channel number which means something only in my location 
> (Sydney) and can repeat depending on what each ‘stream’ (again my 
> terminology). Logical channel number is 3 characters long 
> right-adjusted zero-filled.
>
> The sequence just now for example:  13002, 13001, 12003, 12003, 4007, 
> 4007, 3003, 3003, 2002, 2002, 1007, 1002, and then back to 13002 and 
> repeat. This is a sequence of length 12 – which makes some sense.
>
> A simpler way of putting this is that “C” is going through the device 
> numbers in the order of live TV preference for each of the possible 
> inputs on each device number.
>
> According to https://www.mythtv.org/wiki/Keybindings#Watching_TV_only, 
> “Y” means “switch between multiple capture cards. NOTE: you lose your 
> LiveTV buffer on your current card. Useful for different-sourced cards 
> (such as Dish Network on one, HDTV over-the-air on another card.)”
>
> From these explanations from “Y” and “C”, I didn’t understand the 
> difference between “C” and “Y” so I have done some experiments (below) 
> for “Y” also. The sequence is 13007, 1007, 2002, 3003, 4007, 12003 and 
> then back to 13007 and then repeat. This is a sequence of length 6 – 
> which again makes some sense.
>
> Differences between “C” and “Y”: (1) Both start with the preferred 
> tuner for live TV but after that, “C” and “Y” go in opposite 
> directions. “C” goes in the direction that agrees with the 
> configuration of live TV preference. “Y” (for me) goes in the reverse 
> order to configure preference. (2) “C” goes through every ‘stream’ (2 
> per input device) while “Y” skips from input device to input device 
> only ever using one ‘stream’.
>
>
>
Yes, I have 3 different sources, with 8 tuners. When I press "C", I get 
the name of the tuner at the top center of the screen. Subsequent 
presses of "C" don't do anything else. "Y" locks up the frontend and I 
have to restart it. Again, I'm on .27.
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