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On 17 Aug 2010, at 15:08, Kevin O'Gorman wrote: |
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> ... |
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> The clips do not play in any reasonable form. I get moments of |
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> sound, and a few pixels changing on screen; nothing coherent. I'd |
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> been told that H264 needs a lot of CPU and I guess an old 4-core 32- |
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> bit XEON (effectively 800 MHz each) on 2 GB ECC DDR1 is not enough. |
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> Okay. |
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Hi-def needs a lot of horses to play, I'm not sure about H264 compared |
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to other codecs. H264 is designed so that specialised deciding chips |
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(in mobile phones and set-top-boxes) can be built cheaply to aid |
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playback, but on generic hardware I would imagine it would be a chunk |
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more demanding than (say) the MPEG2 of the DVD standard written over a |
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decade ago. |
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If you mean 4 *processors* at 800mhz, then that's Pentium III |
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territory, and you have no chance. You'd really be requiring a Core2 |
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class machine. A Pentium 4 is likely to struggle. |
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Video playback does parallelise, if the player is written for that. |
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But 800mhz is still massively underpowered for hi-def video. |
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Stroller. |
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