[mythtv] Multiple recording files created - 0.21-fixes (r16102)

[Matt Doran]

Matt Doran wrote:
> Hi there,
>
> I'm running 0.21-fixes and just recompiled (r16102).   I'm using 3 
> DVB-T tuners.
>
> Whenever a start live TV, or change channels in live TV, I noticed 
> that 2 mpg files are created in my recording directory.  The first is 
> always 0 bytes and has a slightly earlier filename timestamp (see below).
>
>     -rw-r--r-- 1 mythtv mythtv       0 2008-02-17 12:43
>     /storage/livetv/2501_20080217124325.mpg
>     -rw-r--r-- 1 mythtv mythtv 4819944 2008-02-17 12:43
>     /storage/livetv/2501_20080217124326.mpg
>
>
> I also get an error in my mythbackend log at the same time, when it 
> tries to generate a preview for the first/invalid recording.
>
>     2008-02-17 12:43:29.397 Preview Error: Previewer file
>     '/storage/livetv/2501_20080217124325.mpg' is not valid.
>     2008-02-17 12:43:29.411 Preview Error: Run() file not local:
>     '/storage/livetv/2501_20080217124325.mpg'
>     2008-02-17 12:43:29.423 Preview Error: Preview process not ok.
>                            
>     fileinfo(/storage/livetv/2501_20080217124325.mpg.png) exits: 0
>     readable: 0 size: 0
>
> Two entries for this recording also appear in "recorded programs" when 
> I enable the "LiveTV" group.
>
> This happens whenever I change channels in livetv (2 recordings, 2 
> files, the first being 0 bytes).  This doesn't happen on scheduled 
> recordings.
>
>
I collected some verbose (RECORD, FILE) logs, so you can see it 
happening.   You can view it here: http://pastebin.com/m3832a874

You can see the the first file get created (2509_20080218225324.mpg) on 
line 15, and then the second (2509_20080218225326.mpg) on line 136.

Is this behaviour by-design?  Something to do with a "dummy recorder"?   
  If it's the way it's supposed to be, that's cool ... just tell me to 
go away. :)

It just seems a little odd to get the duplicate file and recording for 
each livetv view ..... and the error about the preview generation.

Thanks,
Matt


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