Well to me it looks just like a plain business decision. If takes X months per chip family, I would do it first on the latest as well.
More sales if you can tick "H.264 acceleration on linux"
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H.264 VA-API Support For Intel Clarkdale/Arrandale
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I don't know, there are even no laptops with the newer chips, only powerful desktops which do not need h.264 acceleration...
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I wonder why they began to implement this on the newer chips and not on the GM45. I would have thought they were far more people owning the older chips and wanting this feature than the newer chips.
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Little More Detail Please
I am new to getting things up and running on this new Gateway NV7915u laptop. I came across this post to get Ubuntu installed. It works but I think I have some stability issues when running Firefox. I chose to run 2.6.33. I am interested in using this feature but am a little unsure of how to get it installed. Can someone provide a little more detail on how to apply the patch. Thanks.
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Originally posted by djiezes View PostAs far as I gathered Ubuntu 10.04 - end of april - will use the 2.6.32 kernel. While the intel graphics support is only from 2.6.33 onwards? Same for this va-api?
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Originally posted by garytr24 View Postisn't it possible to get hardware assistance for decoding on g33 with gallium and the shader pipeline?
Also, the kind of acceleration you get this way (that is, MC level) is not very useful, especially with H.264 high profile, where acceleration is most needed.
H.264 data in high profile is normally encoded with CABAC. CABAC decoding needs a lot of processing power and cannot be parallelized well, thus it isn't viable for offload to shaders. If you approach high bitrates (like on bluray), if I remember correctly, CABAC usually becomes the most involving decoding step. And you can't speed it up with MC acceleration at all.
Plain and simple, in my opinion, only full (i.e. bitstream/VLD level) acceleration is worth implementing when it comes to H.264.
VC-1 is different, but it's not nearly as hard to decode as H.264 anyway.
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gallium for old chips?
isn't it possible to get hardware assistance for decoding on g33 with gallium and the shader pipeline?
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U 10.10 might have it, yes.
As Michael found out, the igp in i3 does work in 10.04, he had some crashes though. It should be better when it's released.
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Originally posted by curaga View PostI'd guess 2.6.35 would have this out-of-the-box. By then xbmc will probably have va-api support.
This means I cannot reasonably expect va-api to be a feature in Ubuntu 10.04?
But possibly in 10.10 ; maybe even at a later stage?
And what about just the igp feature, not the va-api hardware accelerated decoding part. From where on will I be able to use Ubuntu out-of-the-box; without va-api, just the intel igp part of my core i3? With the new Ubuntu 10.04, or at a later stage?
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