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Altera_Forum's avatar
Altera_Forum
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11 years ago

Is video packet from VIP core always contain full frame?

Hi, I have implemented my custom IP core compatible with VIP Avalon ST-interface. I receive correct control packet and then I'm waiting for video packet with whole video frame data, but I receive ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Thanks for reply!

I have following video path:

Clocked Video Input(progressive, 1280x1024) -> clipper-> gamma corrector -> filter -> st-splitter(out1) -> frame buffer -> a lot of cores for convert to PAL output.

st-splitter(out2) -> fifo -> scaler -> my custom JPEG encoder.

I found that invalid frame comes during start up, but not sure it comes just one time...

I have found "Discard invalid frames/fields" parameter in Frame Buffer, it seems it all I need, but it is not reasonable to occupy memory bandwidth for dropping invalid frames only. My encoder is faster than my video source, so no additional frame rate conversion is needed.

Thanks!