On cards prior to r6xx, video decode was done using the 3D engine (there was no UVD on those asics), so the hardware is capable and the documentation is available.
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Originally posted by MostAwesomeDude View PostIn all seriousness, I was referring to the idea that there might be GPUs out there that have full-on MPEG-4 decoding onboard, that are fully supported by some open driver. </thatsthejoke>
Not sure how they handled the whole DRM situation though...
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Originally posted by bridgman View PostFor clarity, we didn't promise to separate out DRM from decode, just to make sure the issue of useability with open source drivers *was* on the table with future designs and that we did proceed *if* the impact on cost & performance was not prohitive.
In other words we promised to *try*, no more.
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> Depends on what you mean by complete.
Complete meaning that everything we might want/need to know about how
to use the chip is documented and available on the web with no NDA.
datasheet: pinout, Voltages (min, max, etc.), timing diagrams, etc.
the usual EE stuff.
programming: how to use *all* the features.
> DSPs would be OK for implementing codec du jour except there aren't any
> DSPs in a typical PC system while there are usually is a pile of shader engines.
My (feeble) understanding is that DSPs would be better than shaders due to
(1) integer vs floating point, (2) they would use less power and (3) maybe
be less expensive. (There is also the FPGA approach, but FPGAs are expensive
and power hungry.) E.g. if you are starting from scratch designing a
programmable video decoder, DSP would be the best way to go? Less
expensive and lower power consumption than decoding using a CPU or using
a GPU's shaders?
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Originally posted by MostAwesomeDude View Posthttp://www.x.org/wiki/CorbinSimpson lists the cards I have.
Feel free to send me cards I don't have, but I make no guarantees about what I do with them. :3
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