Processing video data

Hi,

I have a videodecoder that normally would produce ITU-R BT.656, but because
my application does need teletextdata also, I have use raw data mode.

So my CE application has to process all data and make it 656 again +
teletext data.

Doe any one know how to do so? (e.g. is it possible to write a WINCE driver,
that based on horizontal/vertial sync interrupts processes the data?)

thanks Maarten.
--
Maarten

Silver
Sun Mar 16 16:41:36 PDT 2008

Why do you need to convert to RGB to get teletext? The top few lines where
teletext lives is not displayed anyway. Just convert that piece only and
don't touch the rest of the data.

Geoff
--

Maarten
Tue Mar 18 04:51:03 PDT 2008

Dear Silver,

the problem is that the iMX27 processor from Freescale does not accept these
lines. Normally it only sends the video to the processor. (filters only SAV
lines).
In raw mode you get everything, but you have to process it your self.

I wonder how busy the processor will be converting this, because it is quite
a lot of data
--
Maarten


"Silver" wrote:

> Why do you need to convert to RGB to get teletext? The top few lines where
> teletext lives is not displayed anyway. Just convert that piece only and
> don't touch the rest of the data.
>
> Geoff
> --
>
>