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Altera_Forum
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11 years ago

Getting Slow Frame Rate using Frame Buffer Driver on Cyclone IV Board

Hi, I am developing Frame Buffer based Video Driver to Play upto 720P Resolution Video on Cyclone IV board in Linux Platform. I have used concept of Linux PCI Driver as well as Virtual Frame ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi,

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Than, I have started task to test Sample Video file using "mplayer" tool which works fine upto 480P (720 X 480) Resolution Supoorted Sample Video but getting some slow rate while

running 720P (1280 X 720) Resolution Supported Sample Video with same Frame Buffer Driver in Linux Platform.

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Would you tell me the correct meaning of 'slow rate' ? Does it mean that your FIFO buffer sometimes becomes empty and you can't see the right image on your screen? Or it means that the image is OK but the movies are quite slow against your expectation ?

Kazu