Mailing List Archive: MythTV: Users

change channel before firewire record

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fuzzie1300 at optonline

Feb 25, 2008, 11:41 AM

Post #1 of 3 (570 views)
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change channel before firewire record

I am having a problem with the transcoder where it errors out while
downconverting an HD to a lower SD format. Essentially, firewire starts
recording on an SD channel, then it changes to the appropriate HD channel.
Now the file has both SD and HD formats in it, causing the transcoder to
error out. I do not use a channel changer script. I have a SA 4250.

Essentially I get a segfault.

# mythtranscode -i 2713_20080105043000.mpg -o myfile.mpg
2008-02-07 10:57:00.185 Using runtime prefix = /usr
2008-02-07 10:57:00.194 New DB connection, total: 1
2008-02-07 10:57:00.201 Enabled verbose msgs: important
2008-02-07 10:57:00.204 New DB connection, total: 2
2008-02-07 10:57:00.216 Using protocol version 31
0: start_time: 8239.841 duration: -9223372036854.775
1: start_time: 8239.800 duration: -9223372036854.775
stream: start_time: 91553.328 duration: -9223372036854.775 bitrate=0 kb/s
2008-02-07 10:57:00.421 New DB connection, total: 3
2008-02-07 10:57:00.498 mythtranscode: 0% Completed @ 0 fps.
2008-02-07 10:57:01.030 Resizing from 640x480 to 544x480
2008-02-07 10:57:01.045 NVP: Disabling Audio, params(0,0,0)
2008-02-07 10:57:01.260 audio stream changed
2008-02-07 10:57:01.263 Resizing from 1920x1088 to 544x480
Segmentation fault

This is mythtv-0.20.2-169.fc6 (MythDora 4).

The workaround has been to view the file on my notebrick and edit out the
first few seconds, then resubmit the transcode job.

I found this thread, but no solution
http://www.gossamer-threads.com/lists/mythtv/users/285248?search_string=firewire%20change%20channel%20before%20record;#285248

bmayland+mythtv at capnbry

Feb 25, 2008, 1:06 PM

Post #2 of 3 (519 views)
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Re: change channel before firewire record [In reply to]

fuzzie1300 wrote:
> I am having a problem with the transcoder where it errors out while
> downconverting an HD to a lower SD format. Essentially, firewire
> starts recording on an SD channel, then it changes to the appropriate
> HD channel. Now the file has both SD and HD formats in it, causing
> the transcoder to error out. I do not use a channel changer script.
> I have a SA 4250.
>
> # mythtranscode -i 2713_20080105043000.mpg -o myfile.mpg
> 2008-02-07 10:57:01.263 Resizing from 1920x1088 to 544x480
> Segmentation fault
>
>
> This is mythtv-0.20.2-169.fc6 (MythDora 4).
>
I'm not sure what MythDora 4 is in relation to svn revision, but I fixed
a similar problem (where my cable company decided to insert 544x480
commercials in 720p content) last year some time. It went into
0.20-fixes in Sept 2007. If it doesn't, maybe I can take a look at it
again.
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fuzzie1300 at optonline

Feb 25, 2008, 3:49 PM

Post #3 of 3 (534 views)
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Re: change channel before firewire record [In reply to]

> I'm not sure what MythDora 4 is in relation to svn revision, but I fixed
> a similar problem (where my cable company decided to insert 544x480
> commercials in 720p content) last year some time. It went into
> 0.20-fixes in Sept 2007. If it doesn't, maybe I can take a look at it
> again.

If this helps, I am showing build date of Tue Nov 20 21:51:59 2007 from
atrpms.net and "- Update to latest svn fixes (14921)."

mythtv-0.20.2-169.fc6

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