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Date:      Mon, 8 Nov 1999 17:31:29 -0500
From:      Randall Hopper <aa8vb@ipass.net>
To:        Roger Hardiman <roger@cs.strath.ac.uk>
Cc:        multimedia@FreeBSD.ORG
Subject:   Re: bt848 w/ 3.3
Message-ID:  <19991108173129.A4339@ipass.net>
In-Reply-To: <3826D8E0.41C6@cs.strath.ac.uk>
References:  <19991105181840.A1124@ipass.net> <Pine.BSF.4.05.9911051828130.92042-100000@tandem.milestonerdl.com> <19991105184031.C2053@ipass.net> <3826D8E0.41C6@cs.strath.ac.uk>

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Roger Hardiman:
 |If I run grab.c obnce every 2 seconds, then
 |1 in 5 images grabbed will have the odd and even scan lines the
 |wrong way around.
 |
 |I've not had time to follow it up yet.

Strange.  Non-deterministic interlace switching.  I hate those kind of bugs
;-)

Could have something to do with the field capture error handling.  When
it's counting to two (odd field, even field, got a frame!), if one of the
fields errors out, I can see it might get out of sync if the frame sense
isn't being choosy about which frame to pick back up with.

Randall




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