Re: bttv driver questions

[Daniel Glöckner <daniel-gl@xxxxxxx>]

On Tue, Sep 02, 2008 at 01:05:12PM +0200, Jean Delvare wrote:
> I couldn't find a format for HI24 though, maybe it's not standard
> enough and ffmpeg doesn't support it.

I've written a small program that captures in HI240 and converts to
YCbCr 4:2:0. The output is either PGM as generated by mpeg2dec or Y4M
as expected by the mjpegtools. The HI240 to RGB formula is from
xawdecode.

You can find it at
http://www.stud.uni-hannover.de/~daniel/hi240.c


While skipping through the Fusion 878A datasheet, I found a sentence
which made me realize that the problems associated with switching from
one GNT to another in idle state are not limited to IDSEL stepping.
Inserting a cycle with all GNTs deasserted is required because a device
parked on an idle bus must drive the AD and C/BE# lines. This is not
correctly modeled in the simulation.

  Daniel

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