[Theora-dev] FPGA implementation

Andrey Filippov theora at elphel.com
Sun Jan 23 23:37:27 PST 2005


Two more bugs fixed - one (in DC prediction) was that the last operation -
comparing with 3 neighbours and replacing predicted value with one of them
was terminated after 2, not 3 cycles. The other one - shifting color
components by 128 before forward DCT and after inverse DCT. Still there
are some (at least 3 what I can see):

1 - DCT prediction on the right border;
2 - Y starts from >128 , not from nearly zero
3 - color artifacts near the where there is sharp intensity change.

http://www.elphel.com/downloads/twelfth.ogg
http://www.elphel.com/downloads/twelfth.png



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