[mythtv] Problems recording from two channels in a multiplex

[Mark]

Can't say I have any problem channels any more, I can set manual records for
two chans on the same mplex, either two virtual cards on the same physical
card or two separate cards.

wanna send me a dump of your inputgroup table?

On 6 November 2010 13:04, Another Sillyname <anothersname at googlemail.com>wrote:

> On 6 November 2010 09:25, William Uther
> <willu.mailingLists at cse.unsw.edu.au> wrote:
> > Hi,
> >  I've been having problems recording from two channels in a multiplex
> since that capability was first introduced.  To be clear - some recordings
> work, but others don't.  I've recently asked on the users mailing list, but
> noone there seems to be able to help.  I'm looking to debug it, but would
> like some help with the code, please :).
> >
> > First some setup info:
> >
> > I am running 0.23.0+fixes from ubuntu 10.04.  I have two DVB-T tuners.
>  Each is set up to record up to two programs if they're on the same
> multiplex.  This gives me four cardids, 1 and 2 are on adaptor0 and 3 and 4
> are on adaptor1.
> >
> > Channels ABC1 and ABC2 are on the same multiplex.
> >
> > First, here is a schedule that works:
> >
> >  6:58-7:45pm Big Bang Theory on Go!       (note pre-roll and post roll
> for a 30 min show)
> >  7:30-8:25pm Big Bang Theory on Go!
> >
> > These can be scheduled on cardids 1 and 2 and everything will record
> fine.  So it seems to be fine if it is recording the same channel from the
> multiplex on two cardids.
> >
> > And here is a schedule that doesn't work:
> >
> >  7:00-7:30pm ABC News (that's Australian ABC, not US ABC :) on ABC1
> >  7:15-7:35pm Daily Show on ABC2
> >  7:30-8:00pm The 7:30 Report on ABC1
> >  7:35-8:00pm Colbert Report on ABC2
> >
> > This is normally scheduled with the ABC1 shows being recorded by cardid 1
> and the ABC2 shows by cardid 2.  i.e. all four shows are actually being
> recorded on the same DVB-T adaptor.
> >
> > This fails - when a show starts recording on the other card, the show
> currently recording gets stopped prematurely.  i.e. I end up getting this:
> >
> >  7:00-7:15pm ABC News on ABC1
> >  7:15-7:30pm Daily Show on ABC2
> >  7:30-7:35pm The 7:30 Report on ABC1
> >  7:35-8:00pm Colbert Report on ABC2
> >
> > If I turn on the 'record' logging then I see:
> >
> > 2010-11-05 19:15:02.713 TVRec(1): StartRecording(The Daily Show with Jon
> Stewart)
> > 2010-11-05 19:15:02.811 TVRec(1): Checking input group recorders - begin
> > 2010-11-05 19:15:02.924 TVRec(1): Attempting to stop card 2 in state
> RecordingOnly
> > 2010-11-05 19:15:03.033 TVRec(2): Changing from RecordingOnly to None
> > 2010-11-05 19:15:03.144 TVRec(2):
> ClearFlags(FrontendReady,CancelNextRecording,) ->
> RunMainLoop,RecorderRunning,RingBufferReady,
> > 2010-11-05 19:15:03.354 TVRec(2): Request: Program(no) channel() input()
> flags(CloseRec,KillRingBuffer,)
> > 2010-11-05 19:15:03.465 ProgramInfo(): Updated pathname '':'' ->
> '1203_20101105185800.mpg'
> > 2010-11-05 19:15:03.587 TVRec(2): FinishedRecording(ABC News) in
> recgroup: Default
> > 2010-11-05 19:15:03.645 Finished recording ABC News: channel 1203
> > 2010-11-05 19:15:03.733 scheduler: Finished recording: ABC News: channel
> 1203
> >
> > So you can see that starting to record on cardid1 has caused cardid2 to
> stop.  This is happening in TVRec::StartRecording() about line 586 of
> tv_rec.cpp.  According to my channel table, ABC1 and ABC2 have the same
> multiplex id, but different service ids.  All my cards have the same source
> id.
> >
> > Does anyone have any idea what might be going wrong?
> >
> > Will      :-}
> >
> > _______________________________________________
> > mythtv-dev mailing list
> > mythtv-dev at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
> >
>
> What card are you using?
>
> What happens if you do 'forced' manual records using cardid 1 and
> cardid 2 on the same mux (i.e. Go into live tv --> Menu --> Switch
> Input --> Cardid 1 ) then choose the 'problem' channel and press
> record to force that cardid to record that channel.  Then go back into
> menu and choose the other input and repeat.
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>
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