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Date:      Tue, 14 Jul 1998 17:28:45 +0100
From:      Roger Hardiman <roger@cs.strath.ac.uk>
To:        multimedia@FreeBSD.ORG
Subject:   New IOCTLfor bt848 updates
Message-ID:  <35AB873D.B2715B0@cs.strath.ac.uk>

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Hi,
If you are trying the new ioctl for the active region (grab area)
I have some new restrictions.


RGB24 mode.
WIDTHS
Width. The active region width must not be less than
1.66*meteor geo width
Eg METEORGEO is 256x128. Active region can be from 768 to 424 wide.
(in PAL mode)
This applies to Interlaced, Even and Odd modes.

HEIGHTS
In Interlaced mode the active region height must not be less than
the MeteorGeo height.
Eg METEORGEO is 256x128. Active region height can be from 576 down to
128. (PAL numbers)

In Even Only or Odd Only the active region must not be less that
2*meteor geo height.
Eg METEORGEO is 256x128. Active region height can be from 576 down to
256. (PAL numbers)

Can anyone help track down the cause of these limits.


Cheers
Roger

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