Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Write portion of frame buffer

Hi i would like, when i receive a new frame, to select the central part of it (clip) and store it in memory. The position where i save this piece of frame should depend on the frame number like this...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I'm afraid, I don't know your VIP module, neither how you operate it, so I can't help you much.

If you have the HDL source code (but I suppose you have not), you could find and modify the lines involved in the frame transfer. If it's provided as a black box with no configurable parameters for this, I think you can do little or nothing.

A solution could be starting a memory to memory dma just after the VIP core has completed the frame transfer, and copy it to the right section. But this is somewhat inefficient and maybe inapplicable in your case.