[ExtractStream] Sequence number bogus errors (FAQ?)

[Barcinski, Andy]

> ExtractStream
> does not provide a reliable connection so the error will be 
> cumulative and
> the recording will turn from synced in the beginning into the 
> mess at the
> end of the show.

I think they are getting lost before they leave the TiVo. I use nfs for
very mission critical things everyday, and I find it hard to believe that
network-related problems are causing the loss of sync; I've yet to lose any
data via nfs.

>Even if the data is corrupt for some reason, I would just duplicate
>the previous frames video frame, create dead audio frames, and keep
>things synced up.
>
>Am I way off here?
>
>--David

Not at all. You would think this would be how it works. Of course, if you
play the same recording back on your TiVo, it plays fine. This leads me to
believe that there is something wrong between the time we extract the stuff
and the time we mux it. This means one of 2 things: problem in the network
layer, or problem in the means it pulls the video off. I'm leaning towards
the second as more probible.

>just a FYI, there is a very simple fix for the audio sync issue. If 
>anyone wants it let me know.>

>MP

Still waiting for Michael Pauley's thoughts on this.




> -----Original Message-----
> From: Makhratchev, Konstantin 
> [mailto:konstantin.makhratchev@l...]
> Sent: Thursday, September 20, 2001 9:53 AM
> To: 'ExtractStream@yahoogroups.com'
> Subject: RE: [ExtractStream] Sequence number bogus errors (FAQ?)
> 
> 
> Sent by 
> mailto:sentto-3437393-329-1000997592-andy=americantv.com@r...
> ns.onelist.com
> ______________________________________________
> 
> I am not an ExtractStream's designer, so I might be OFF by a 
> mile. Here's
> what I understand.
> 
> TiVo keeps 2 separate streams vor video and audio. 
> ExtractStream does not
> multiplex them on TiVo side; they are "shipped" in separate 
> packets over the
> netweork. It appears that some audio packets are lost in transition at
> higher rate than video packets (say, 1 in a 100 for audio vs. 
> 1 in a 1000
> for video)--could be some poor TCP/IP stack implementation. 
> 
> 
> Possible solution: multiplex audio and video on the TiVo side
> 
> --just my 2 cents (after pricematch, coupon and mail-in rebate :-)
> 
> -----Original Message-----
> From: David Ranch [mailto:dranch@t...]
> Sent: Wednesday, September 19, 2001 10:40 PM
> To: ExtractStream@yahoogroups.com
> Subject: RE: [ExtractStream] Sequence number bogus errors (FAQ?)
> 
> 
> 
> >I'm not entirely convinced that the audio sync is totally 
> matched with the
> >bogus errors, but I AM all ears to any solution you might 
> have that works.
> 
> What I'm curious about is why is ExtractStream getting confused over?
> Even if the data is corrupt for some reason, I would just duplicate
> the previous frames video frame, create dead audio frames, and keep
> things synced up.
> 
> Am I way off here?
> 
> --David
> 
> 
> ------------------------ Yahoo! Groups Sponsor 
> ---------------------~-->
> Pinpoint the right security solution for your company- Learn 
> how to add 128- bit encryption and to authenticate your web 
> site with VeriSign's FREE guide!
> http://us.click.yahoo.com/JNm9_D/33_CAA/yigFAA/CDr1lB/TM
> --------------------------------------------------------------
> -------~->
> 
> To unsubscribe from this group, send an email to:
> ExtractStream-unsubscribe@yahoogroups.com
> 
> 
> 
> Your use of Yahoo! Groups is subject to 
> http://docs.yahoo.com/info/terms/ 
> 
>