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Multiprocessor Support, multiprocessor support
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uzbones3
Posted: Nov 22 2002, 03:52 AM


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Hello, this has probably allready been asked... but is there any future plans to add multiple processor support to virtual-dub... i'm not sure how it would be implemented, possibly either with the audio compression being on one processor and video on another, or perhaps using them as a pipeline for filters (ie pass video feed through one processor doing filters then to other one which would compress)...

It seems that the major drawback associated with the speed of the encoding process is mainly cpu power... so if you have multiple cpu's it 'should' go faster...



 
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Spire
Posted: Nov 22 2002, 08:40 AM


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QUOTE (uzbones3 @ Nov 21 2002, 07:52 PM)
It seems that the major drawback associated with the speed of the encoding process is mainly cpu power...

It really depends on what you're doing. I run VirtualDub on a dual-processor Athlon MP 2200+ system, and for me the bottleneck is always the hard drive (7200rpm ATA100). But then I encode using Huffyuv, which is extremely fast.
 
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uzbones3
Posted: Nov 22 2002, 03:59 PM


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I'm usually encoding using either divx or xvid.. but I can encode with out filters very quickly... it's the filters that are slowing me down.. a filter like msharpen will increase the time for encodes (both passes) by 4x... 2dCleaner and warpsharp don't decrease the time very much either...
 
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ChristianHJW
Posted: Nov 22 2002, 09:04 PM


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its again using AVISynth for filtering/preprocessing/resizing that can be used to make use of a SMP system ... i get abut 85 - 95% CPU usage for a normal DVD backup, including resizing and temporal smoother in AVISynth ....

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