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Altera_Forum
Honored Contributor
16 years agoExtract pixel data from video stream
Hi, I am very new to FPGA. I am trying to configure a test system using a video input via Bitec QV card and to output pixel data to an external SPI-controlled display device. The interface to ...
Altera_Forum
Honored Contributor
16 years agoHi,
I fail to see why the Frame Buffer included in the VIP reference design is not appropriate in your case. The output of the Frame Buffer is Avalon-ST with a ready signal so you can still do your processing after the frame buffer and apply back-pressure as needed to let the frame buffer drop input frames and handle frame rate conversion from you. Are you trying to access pixels in non-raster scan order? Otherwise, there is a Frame Reader in the VIP Suite that would do what you are asking for but there is no corresponding Frame Writer. Trying to figure out where the writer component of the Frame Buffer has put frames in memory to read them back with the Frame Reader will probably prove to be a bit tricky.