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List:       linux-video
Subject:    Re: [video4linux] Alex: channels
From:       Richard Guenther <zxmpm11 () student ! uni-tuebingen ! de>
Date:       1998-07-28 9:16:31
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On Mon, 27 Jul 1998, Bill Dirks wrote:

> Alex Bakaev wrote:
> 
> > Thus a video channel must have the following capability flags: channel
> > can capture odd field/even field/interlaced fields/alternating fields
> > 
> > VIDCHAN_ODD   video channel can capture odd fields only
> > VIDCHAN_EVEN  video channel can capture even fields only
> > VIDCHAN_INTERLACED video channel can capture odd and even fields,
> > interlacing them                    automatically
> > VIDCHAN_ALTERNATING video channel can capture odd and even fields,
> > alternating them

I've done some experiments with the bttv driver - it seems that it
does _not_ support capturing ODD and/or EVEN or ALTERNATING frames??
The maximum framerate I got was 25fps - from PAL I would expect
50!? Is the current bttv-code missing support for this, or did I
simply not find it? (You know - the two cameras - one grabber
problem...)

Richard.

--
Richard Guenther <richard.guenther@student.uni-tuebingen.de>
PGP: 2E829319 - 2F 83 FC 93 E9 E4 19 E2 93 7A 32 42 45 37 23 57
WWW: http://www.anatom.uni-tuebingen.de/~richi/

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