We use YCbCr 420 for our application requirement . Can you please provide HDMI reference design for YCbCr 420 Targeted for Virtex7 board.
Thanks and regards
As per the standard the lowest is 480p. What are the other spec (DE/HS/VS/Pixel Clock.. etc)? The reference design should support any format (standard or non-standard), you will have to program the parameters properly and configure the pixel clock.
Thanks for your reply.
Can you please tell us the modifications required in reference design for
YCbCr 420 format.If possible could you send us the example code for same.
Thanks and Regards,
On Tue, Nov 27, 2012 at 8:34 PM, rejeesh <
As I said, I could not find in the standard and I am NOT familiar with that format.
If you have the specification, post it here and I may be able to suggest the changes.
It might help to better describe what you are doing, rather than demanding code development. If we understand what you are looking to do, we might be able to provide some better pointers to getting what you want done.
If we can help - great - but we are not a replacement for professional services. If you need a specific thing done, in a specific time, if you don't understand how to do it yourself - you might be better off hiring someone to do it for you.
We have developed a decoder on virtex 7 board which gives YUV420 format
as output. We want to check if that format is supported by
Analogdevices-HDMI reference design so that we can give our output
directly as input to your module. In the reference design we have
downloaded it is not clear whether YUV 420 format is supported or not.
We are sending the reference page from Wikipedia for YUV420 format :
Thanks in advance,
On Wed, Nov 28, 2012 at 8:18 PM, rgetz <
That is color space conversion. The board is wired for full 12bit RGB. You will have to modify the reference design to add your CSC. Also I don't see 420 CSC on ADV7511. Look at page 8 of hardware user's guide for supported input formats. So not sure what your plans are.
Today there is a color space converter in the design already. (which is bypassed on the VC707 design).
On KC705 , the data we take is RGB 888, we convert that into YUV 444, and then downsample that to YUV422, which is what the ADV7511 expects.
In your design, you need to make your own upsampler, to take YUV420 to YUV444, and then the inverse of what we have (YUV 444 to RGB888).
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