[mythtv] [PATCH] position map using frame numbers, rev 2

Doug Larrick doug at ties.org
Sun Dec 14 11:08:24 EST 2003


> Also, I'm not sure about that function [PosMapFromEnc] -- it's  
> getting called fairly often, and each call is going to be 3 separate  
> queries to the backend (IsRecording, GetFramesWritten, and  
> FillPositionMap).  The old code attempted to minimize talking to the  
> backend like that, only querying it when it would help out, as in  
> with a seek forward into unknown video data.  Doesn't really make  
> much sense to ask the backend that often for information we already  
> have or can figure out.

I can definitely tweak this once it's otherwise working in general.   
When I wrote that, I didn't realize we get a state change notification  
when WatchingRecording transforms to WatchingPreRecorded, and so it's  
trying to be a bit more bulletproof than it really needs to be.

-Doug
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