Re: UYVY to AYUV transform filter - cannot connect to the renderer

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From: Jim Easterbrook (jim.easterbrook_at_rd.bbc.co.uk)
Date: 07/09/04 

Date: Fri, 9 Jul 2004 08:30:06 +0000 (UTC)

In article <f4ea142d.0407080522.26985198@posting.google.com>, Lupo <gutkowski@poczta.onet.pl> wrote:
>
>This filter is supposed to provide a YUV 4:4:4 media to some
>downstream filter which performs the actual image processing. I just
>wanted to view the output to see if it was OK. Seems that I'll have to
>do without this. I think that I will combine both filters.

How about this for a silly idea: Have your filter accept RGB input and
apply the RGB->YUV matrix to make YUV 4:4:4 which you output to your
actual image processing filter. However, you also provide two "~monitor"
output pins that output YUV 4:2:2, made by subsampling your 4:4:4 output
in the two possible phases. Of course you only do this work if the
monitor output pin is connected. The RGB input could come from an RGB
source, or will be converted from YUV 4:2:2 for you if you are using DV
or MPEG input.

I assume your "actual image processing" is non-linear, otherwise you
could do it on RGB signals directly. 

-- 
Jim Easterbrook
Senior R & D Engineer, Studio Group
BBC Research & Development               <http://www.bbc.co.uk/rd/>
***   All opinions are mine and might not be shared by the BBC  ***

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