[mythtv-users] scheduler confusion

[Mark Perkins]

Here is what my cardinput table looks like (I essentially have an extra tuner that is pseudo 'reserved' (or more accurately prioritised) for livetv):
 
mysql> select cardinputid, cardid, schedorder, livetvorder from cardinput;
+-------------+--------+------------+-------------+
| cardinputid | cardid | schedorder | livetvorder |
+-------------+--------+------------+-------------+
|           1 |      1 |          1 |           5 |
|           2 |      2 |          1 |           5 |
|           3 |      3 |          1 |           5 |
|           4 |      4 |          1 |           5 |
|           5 |      5 |          1 |           5 |
|           6 |      6 |          1 |           5 |
|           7 |      7 |          1 |           5 |
|           8 |      8 |          1 |           5 |
|           9 |      9 |          1 |           5 |
|          10 |     10 |          1 |           5 |
|          11 |     11 |          1 |           5 |
|          12 |     12 |          1 |           5 |
|          13 |     13 |          1 |           5 |
|          14 |     14 |          1 |           5 |
|          15 |     15 |          1 |           5 |
|          16 |     16 |          1 |           5 |
|          17 |     17 |          1 |           5 |
|          18 |     18 |          1 |           5 |
|          19 |     19 |          1 |           5 |
|          20 |     20 |          1 |           5 |
|          21 |     21 |          1 |           5 |
|          22 |     22 |          1 |           5 |
|          23 |     23 |          1 |           5 |
|          24 |     24 |          1 |           5 |
|          25 |     25 |          1 |           5 |
|          26 |     26 |          5 |           1 |
|          27 |     27 |          5 |           1 |
|          28 |     28 |          5 |           1 |
|          29 |     29 |          5 |           1 |
|          30 |     30 |          5 |           1 |
+-------------+--------+------------+-------------+
30 rows in set (0.00 sec)

I have 6 physical tuners each with 5 virtual tuners.
 
The order of the tuners is of relevance to how you can end up with two recordings from the same multiplex being on different tuners at the same time.
 
Schedule a recording (R1) from 9-10am on multiplex A (MA). It gets tuner 1 because it is the first available tuner of the highest available priority. Then schedule a second recording (R2) from 9:30-10:30am on multiplex B (MB). It gets tuner 6 because tuners 1-5 are occupied with R1 (tuner 1 is recording it, 2-5 are locked out to channels on multiplex A (MA) only).
 
Now schedule a third recording (R3) on multiplex B (MB) for 10:15-11:15am. Ideally it should go on tuner 7 because tuners 6-10 are already occupied with MB and R1 from MA has finished. However the first available tuner is actually tuner 1. So from 10:15am onward two physical tuners are occupied with recordings from a single multiplex even though a single physical tuner could handle both recordings.
 		 	   		  
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