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Altera_Forum
Honored Contributor I
1,210 Views

VIP - Video mirroring

Hi, 

 

I'm using the VIP-core with a CycloneIII-dev-board and it's working fine. 

Now I have to add a function, which turns the video upside-down or mirrors it. 

 

I can't find such a function. What must I do? 

 

Best Regards 

 

Mark
0 Kudos
3 Replies
Altera_Forum
Honored Contributor I
28 Views

there's a fellow on the forum who built a mirror function, it should be an afternoon project. all you need is a couple of ping pong line buffers which you load 0 to N and read N to 0 

 

going top to bottom will require a full frame buffer and is a much more complicated project
Altera_Forum
Honored Contributor I
28 Views

Unfortunately I have to mirror it from the top to the bottom. 

The design is already using the VIP frame buffer for changing refresh rate, 

but the frame buffer doesn't have a mirror function.
Altera_Forum
Honored Contributor I
28 Views

right, you will have to build your own frame buffer so you can read out the lines in the reverse order