[mythtv-users] Enabling multirec borks usability a bit.

[Mike Perkins]

mugginz wrote:
> On Mon, 19 Apr 2010 06:05:14 am Raymond Wagner wrote:
>> On 4/18/2010 15:38, mugginz wrote:
>>> Will now investigate the virtual tuner options in C.  Can't say I've
>>> heard of them though for this scenario.
>> When you set 'Max Tuners' to 2, that was two virtual tuners.  The way
>> you have it set up now, recorders one and two are off the first physical
>> card, three and four are off the second physical card, and so on...
>>
>> The way you want to set it up is to have recorders one, two and three
>> each be connected to their own physical tuner.  Then you fill in
>> additional virtual tuners as desired.
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> 
> I set it up this way an doesn't really work as expected.
> 
> Added tuner 1, 2 and 3 with Max Tuners set to 1
> Then modified tuner 1 by setting it to Max Tuners to 2 and did the same for the 
> other two tuners.
> 
> Then started watching live TV. Went through channels to make sure they're all 
> easily selectable.  Then went to channel 7 and pressed 'R' to begin recording.  
> At this stage I could still go to any other channel without having to manually 
> select another one so this was an improvement.  Switched to channel 9 and 
> began recording that, then went to channel 10 and began recording that.  At 
> this stage I could use channel up and down do move to any other channel, but 
> when selecting a channel not available in the multiplexes being recorded it 
> would simply switch to the closest channel possible.  In this test, I selected 
> channel 2 but because it wasn't in an available multiplex it switched to 
> channel 7.
> 
> Fixed I thought, but,.... having made the first channel switch (to channel 7), 
> I could then only move between channels in the channel 7 multiplex.
> 
> So that prescribed method is a little better than how it is by default, it 
> still is a bit borked.
> 
> Is there anyone that can point me roughly to the area in the source code that 
> deals with the channel selection functionality?  This really needs to be fixed 
> so I'll have a look at it to see if there's something I can do.
> 
I would have thought that the behaviour you described above is exactly as 
expected. You have three tuners, you went and started three recordings. This 
meant that each tuner grabbed and locked the mux that contained the channel it 
was recording. I can't see any way you can then access a channel that's not on 
one of the three muxes currently being used. That's exactly the way that 
multirec is supposed to work.

Don't forget, your 'virtual tuner' which is the extra tuner you configured is 
just a happenstance extra benefit of the fact that each tuned mux contains a 
number of channels.  Once a mux is selected by the hardware, that's the limit of 
availability for that physical tuner.

-- 

Mike Perkins