On 2/17/07, Dieter <[EMAIL PROTECTED]> wrote:
> All hardware solutions
> for decoding of video sold these days are made for set top boxes
And that is a significant market for the TRV (sp?) chip.
Probably not, unless it's to be built with other devices. However, in
our design plan, the only way for another device to get data into
graphics memory is via the host interface (PCI, etc.). In a
custom-designed machine like a DVR, one might expect to do better.
To avoid creeping featurism, we would have to address this either via
furture revisions or entirely unrelated chips.
> Athlon 64 3700+. MPEG2/4 1080p and 1080i content, no problem, with
> both Xv and mga_vid drivers (using MPlayer, what else ;).
> CPU usage varies between 30 and 70%
Requiring 70% of a AMD64 3700+ is not even close to acceptable.
And probably even higher with other material. Maybe in ten years.
assuming CPUs get faster.
Is any of that 70% involved in data transport, or can you be sure that
all of that is being done via DMA in this case?
> slow AGP bus
OGC will have an even slower bus.
Depends on how many PCIe channels we design into it. There will be at
least one (about as fast as PCI-32 66MHz).
--
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Favorite book: The Design of Everyday Things, Donald A. Norman, ISBN
0-465-06710-7
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