[mythtv] Re: [mythtv-commits] Re: Ticket #761: Thumbnail generation for MythWeb - Recorded Programs doesn't alwaya honor PreviewPixmapOffset

Kevin Kuphal kuphal at dls.net
Tue Dec 6 14:05:51 UTC 2005

MythTV wrote:

>#761: Thumbnail generation for MythWeb - Recorded Programs doesn't alwaya honor
> Reporter:  anonymous  |        Owner:  ijr       
>     Type:  defect     |       Status:  closed    
> Priority:  minor      |    Milestone:            
>Component:  mythweb    |      Version:            
> Severity:  medium     |   Resolution:  worksforme
>Changes (by cpinkham):
>  * resolution:  => worksforme
>  * status:  new => closed
> The preview pixmap generate will ignore PreviewPixmapOffset in lots of
> cases.  It also takes into account RecordPreRoll, PreviewFromBookmark, the
> commercial skip list, and the cutlist, so there are lots of reasons why
> the image would not always be from a fixed position in the recording.
> Closing ticket unless you can document cases where it's not working as it
> should.  Unfortunately, "pretty odd sometimes" doesn't help us debug.  If
> you want to try to track this down, edit NuppelVideoPlayer.cpp and search
> for NuppelVideoPlayer::GetScreenGrab() and insert some lines like the one
> below every time you see the 'number' variable modified.  Then you can see
> why it is choosing the frame it chooses.
> cerr << "NVP::GetScreenGrab: Line: " << __LINE__ << ", number = " <<
> number << endl;
> That will print out the current value of number and the current line
> number as well so you can see where it is being changed at.
I've seen this as well where the image is coming from the very end of a 
recording with no cutlist and only a commercial cutlist that is darn 
near perfect when watching.  I will try to see if I can find one that 
exhibits this as well.


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