[mythtv-users] Phantom encoders appearing randomly

[John P Poet]

On Fri, Dec 2, 2022 at 7:13 AM mythtv <mythtv at mdabbs.org> wrote:

> On 12/1/22 21:31, John P Poet wrote:
> > On Thu, Dec 1, 2022 at 6:28 PM <mythtv at mdabbs.org
> > <mailto:mythtv at mdabbs.org>> wrote:
> >
> >     On 11/30/22 10:36 AM, Peter Bennett <pb.mythtv at gmail.com
> >     <mailto:pb.mythtv at gmail.com>> wrote:
> >      >
> >      > On 11/30/22 09:52, mythtv at mdabbs.org <mailto:mythtv at mdabbs.org>
> >     wrote:
> >      > > Thanks! Just a question out of curiosity, are all the topions
> >     the same
> >      > > for all encoder types?  The wiki says multirec is only
> >     supported by a
> >      > > few types of encoders, and Schedule as group defaults to on.
> >     Would it
> >      > > help others if these options were greyed out and/or defaulted
> >     off for
> >      > > encoder types that don't support multirec?
> >      > Encoders that don't support multirec can still benefit from one
> >     extra
> >      > encoder. If you set recordings to start early or end late, and two
> >      > consecutive shows on the same channel are set to record, it will
> >     include
> >      > the extra time in both from a single encoder. The extra time at
> >     the end
> >      > of one show and the beginning of the next shoe are the same actual
> >      > video, which will be included in both recordings.
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> >
> >      >
> >
> >     Ok, so this is interesting, because I have a global "start 5 minutes
> >     early" and a global "end 5 minutes late".  But, these external
> >     recorders can really only do 1 stream at a time (mythexternrecorder
> >     and magewell capture card). Running two instances of this will
> >     definitely fail, which I think is what I'm seeing.  I always thought
> >     the global start/end buffers were sort of "soft" in that, if it
> >     could, it would start early or end late, unless it needed the
> >     encoder for back-to-back recordings.  So, how should I really
> >     configure this? More max recordings which I think will truly fail?
> >     Or do I have to get rid of any start early/end late to better
> >     support back-to-back recordings?  Or am I missing something in the
> >     mythexternrecorder capabilities?
> >
> >
> > The External Recorder mechanism in mythtv supports "multirec" in that it
> > allows for overlapping recordings. If a new recording is requested on
> > the "same channel" as a recording in progress, mythbackend will just
> > read from the existing external recorder. When all recordings for that
> > channel have been completed the external recorder is shut down.
> >
> > John
> >
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>
> So how do I set this up then? I've never been clear on all of the
> settings in the config file.  This is all I have for right now:
>
> [RECORDER]
> command="/usr/local/bin/magewellpro2ts --input 2 --mux"
>
> I have spectrum STBs so I use 6200ch to change channels, but I don't
> have any of that configured in the mythexternrecord config.
>

You would use the [TUNER][COMMAND]. Something like:








*[TUNER]# An optional CONF file which provides channel
details.#channels=/home/mythtv/etc/roku-channels.conf# If [TUNER/command]
is provided, it will be executed to "tune" the#
channel.command="/usr/local/bin/roku-control.py  --roku roku2 --channum
%CHANNUM%"*

I have not used firewire in over a decade, but I would assume substituting
an appropriate 6200ch command would work there.

John
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