[mythtv] Wrong time of recordings when using PVR 350

Jay R. Ashworth jra at baylink.com
Sat Oct 2 23:25:18 EDT 2004


On Sat, Oct 02, 2004 at 10:57:05PM -0400, Isaac Richards wrote:
> On Saturday 02 October 2004 08:50 pm, Jay R. Ashworth wrote:
> > On Fri, Oct 01, 2004 at 03:37:16PM -0400, Isaac Richards wrote:
> > > > Not sure where this belongs, but I think we figured out why a hour hd
> > > > recording is showing as ~51 minutes in myth. With roughly 40 minutes of
> > > > show at 24fps (hd) and 20 minutes of commercials at 30fps (sd) I get
> > > > about 52 minutes if the calculation of the recording length is based on
> > > > the fps (i think 30) reported in the recording. 40mins * (24fps/30fps)
> > > > + 20mins (30fps/30fps) = 52 minutes. I also have problems jumping 30
> > > > seconds ff or rw on these recordings. The time changes by 10 seconds
> > > > but the video is only changing by a second at the most.
> > >
> > > It does indeed calculate length assuming a constant frame rate.
> >
> > "... which quantity originates with the capture card driver through the
> > API"... ?
> 
> Different issue here, actually - hdtv can change framerate mid-playback, but 
> analog recordings can't.

Hmmm... does that mean that the frame rate info is carried in the
metadata for each frame?  (Or is it as microsecond time stamps?)
</question type=stupid>

Cheers,
-- jra
-- 
Jay R. Ashworth                                                jra at baylink.com
Designer                          Baylink                             RFC 2100
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	"You know: I'm a fan of photosynthesis as much as the next guy,
	but if God merely wanted us to smell the flowers, he wouldn't 
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					-- Luke Girardi


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