Martin Brown wrote:
Thanks to all who have spoken up about this behaviour. If I can
summarise:
With dual tuners and global pre/post program time buffers, MythTV will
discard the global buffering for consecutive programs and record them
both from the one card. For program specific pre/post buffering,
however, this will be honoured and consecutive programs taken from
different cards.
This seems very counter-intuitive to my thinking and I definitely want
to try and "fix" it. A few ways I can think of:
1. When a card starts recording, switch the default card to the other
one so that when the next recording starts (anytime), it uses the
other card.
2. In the code, where the decision is made as to whether there is a
program specific start/end buffer, also take into account the global
start/end buffer.
3. Run some SQL occasionally to take the global buffers and apply them
to all scheduled recordings as program specific buffers.
4. Manually, whenever you see two consecutive programs in your
schedule, manually add a program specific pre/post buffer if you don't
want program overlapping.
1 and 2 involve code changes and I'll see if I can work out what to
change for that. 3 Is probably not too hard and doesn't involve a code
change but a bit of a kludge. 4 is a pain in the neck.
The "correct" method as I can see it is to change the scheduler behavior
so that it more aggressively attempts to capture global buffers when two
cards are available, but not to the point where it would interfere with
a normally scheduled program. Chagning it to respect the global/start
end buffers as you mention in #2 isn't enough as you don't want to
global buffers to prevent something that normally would be recorded from
being recorded just because the buffers are there.
Kevin
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