[mythtv-users] Issues with external tuner script on SA3250HD STB

[Matt Emmott]

I tried leaving off the leading slash, no luck. I tried leaving off the path
altogether and just specifying sa3250first as well, no luck.

To make sure I'm doing it right, here are my steps every time I make a
change:

1) Open terminal as root. service mythbackend stop.
2) Open terminal as the user mythtv (the default login on the system) and
run mythtvsetup.
3) Make the changes in input connections, alt-F (finish).
4) Back to user root, service mythbackend start
5) Back to user mythtv, mythtvfrontend
6) Test, curse, repeat.

Random questions:
Does it matter that the file is owned by root? I've confirmed that I can run
it from a terminal as mythtv so I'm thinking it's not a problem. I should be
running myttvsetup as the user mythtv, right? And finally, do I need to run
mythfilldatabase every time I change something as simple as an external
channel script?



On Jan 7, 2008 7:58 PM, Greg <greg12866 at nycap.rr.com> wrote:

> Matt Emmott wrote:
> > Hi,
> >
> > I've given up on recording from Firewire until the next Myth release
> > comes out, and am attempting to use S-video as my PVR-150's input. The
> > cable box is a Scientific Atlanta SA3250HD. My cable box is outputting
> > component directly to my TV as well as S-video & composite audio to my
> > PVR-150 on my Myth 0.20.2 box. It's kind of a unique setup but the box
> > seems to output to both destinations simultaneously without an issue.
> >
> > Viewing / recording TV seems to be working - My issue is with changing
> > the channels via an external script. I'm running a modified SA3250ch
> > script that I obtained from this mailing list. I'll post the script
> > below. I named it sa3250first during my testing and the name just kind
> > of stuck. At any rate, I can change the channel just fine via terminal
> > while logged in as the user mythtv (the same user that MythTV runs
> > under) by typing, say, 'sa3250first 005' or typing the entire path, as
> > in /usr/local/bin/sa3250first 0005. The script calls the original
> > sa3250ch script which is also in /usr/local/bin and is executable by
> > user mythtv.
> >
> > I've set up the external tuner script in mythtvsetup under input
> > connections -> /dev/video0 S-video 1 -> External channel change
> > command and entered /usr/local/bin/sa3250first. The permissions &
> > details on the file are -rwxr-xr-x 1 root root 218 Dec 13 19:23
> > sa3250first
> >
> > There's nothing in the /var/log/mythtv/mythbackend.log that seems out
> > of the ordinary, it thinks it's changing channels like so:
> >
> > 2008-01-07 17:44:57.828 Finished recording NewsCenter 5 at
> > Five-Thirty: channel 1003
> > 2008-01-07 17:48:20.220 ret_pid(4724) child(4724) status(0x0)
> > 2008-01-07 17:48:20.222 External Tuning program exited with no error
> > 2008-01-07 17:48:20.235 Finished recording That '70s Show "Red's Last
> > Day": channel 1006
> > 2008-01-07 17:48:20.279 Finished recording That '70s Show "Red's Last
> > Day": channel 1006
> > 0: start_time: 11.628 duration: 18.201
> > 1: start_time: 11.599 duration: 18.194
> > stream: start_time: 128.877 duration: 202.554 bitrate=5193 kb/s
> > 2008-01-07 17:48:20.306 AFD: Opened codec 0xa128820, id(MPEG2VIDEO)
> > type(Video)
> > 2008-01-07 17:48:20.315 AFD: Opened codec 0xa128cd0, id(MP2) type(Audio)
> > 2008-01-07 17:48:20.321 TVRec(4): RingBufferChanged()
> > 2008-01-07 17:48:20.329 Finished recording That '70s Show "Red's Last
> > Day": channel 1006
> > 2008-01-07 17:48:51.294 ret_pid(4731) child(4731) status(0x0)
> >
> > Any ideas? Here's the sa3250first script:
> >
> > [mythtv at magic bin]$ cat sa3250first
> > #!/bin/sh
> >
> > l=`echo $1 | awk '{print length($0)}'`
> >
> > if [ $l -eq 3 ]
> > then
> >  sa3250ch -s $1
> > fi
> >
> > if [ $l -eq 2 ]
> > then
> >  sa3250ch -s 0
> >  sa3250ch -s $1
> > fi
> >
> > if [ $l -eq 1 ]
> > then
> >  sa3250ch -s 0
> >  sa3250ch -s 0
> >  sa3250ch -s $1
> > fi
> >
> >
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
> I am not sure if this is your problem or not, but when i enter the path
> for the script i use to change channels on my 3250 hd  i don't add the
> leading / like you did in the setup...My path reads
> usr/local/MyBlaster.pl . You stated  above  in mythtvsetup under input
> connections -> /dev/video0 S-video 1 -> External channel change command
> and entered /usr/local/bin/sa3250first.
>
> ^ try leaving that off..
>
> Good luck
>
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