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lufi
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2011-08-26, 10:39
(This post was last modified: 2011-08-26, 10:57 by lufi.)
Hi,
all is working fine but on HD Channels CPU goes up to 100%.
SD Channels work ok with 19% CPU.
What's wrong ?
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It seems you don't have a hardware decoder and/or deinterlacer. (vdpau or vaapi)
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lufi
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Ok, what can i do ? It is my old Notebook (Dell d610, 2,2Ghz, i915 GPU)
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Without a graphic card capable of doing the decoding and deinterlacing stuff, I don't think you can have a descent quality on HD channels.
In my case, HD channels are in H264 1080i format so I need to decode the H264 stream AND deinterlace it and I can't use the best deinterlacer because my card hasn't enough power ! (Nvidia GTX 460).
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The GTX460 can play 1080i with full temporal/spacial but it's not smooth when there is a lot of movement.
nvidia-smi doesn't report the GPU load anymore, I can't know the load and if the problem came from the GPU load.
I prefer a worse deinterlacer and have smoother movement. Without the deinterlacer (1080p), the GTX460 is really good.
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One more thing. Previously, I used vdr with xineliboutput and with it, I can play 1080i with full temporal/spacial (temporal/spacial x 2 in xinelibouput).
xineliboutput use less gpu power but xbmc is more robust. With xinelibout, I have some caveats with some stream. An example, when a channel provider changed his encoder, the stream became unwatchable. They still used mpeg2 but some change in the encoding made xineliboutput unable the read it correctly.
Weird, isn't it ?
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xineliboutput doesn't use OpenGL, XBMC does. I have seen all those issues you are describing. I have been working on this for quite a while. It's still experimental and will take a while until I can submit this for review. Regarding hw you don't need more power than GT430 for high quality de-interlacing of HD material.
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