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| ThirtyBird |
| Posted: Aug 26 2002, 05:42 PM |
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Unregistered
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Hi,
I'm not a new user to VirtualDub, I've been using it for quite a bit of time, and I think the answer I'm looking for is in Avery's FAQ, but the FAQ disappeared during his web redesign it seems.
My question - Does Virtualdub utilize multiple processors if they are present? |
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| phaeron |
| Posted: Aug 27 2002, 03:35 AM |
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Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
Joined: 30-July 02
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That particular question isn't in there anyway.
Input I/O and audio runs in one thread, video filter/compression in another, and output I/O in a third. The highest parallelism will occur when you have audio compression and video compression/filtering active. Both video compression and video filtering run in one thread, though, so that is frequently a big bottleneck.
Because Avisynth runs as an input driver, any Avisynth processing will run in parallel to VirtualDub's video processing.
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| ChristianHJW |
| Posted: Aug 27 2002, 05:25 AM |
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Advanced Member
Group: Moderators
Posts: 1768
Member No.: 2
Joined: 7-July 02
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As Avery said, if you want to use Vdub on a SMP machine ( have one here ) its to consider to use AVISynth as external filtering/resizing tool ( www.avisynth.org i guess ), i get about 90 - 95% load on my SMP here when doing that ...
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Visit the unofficial Virtualdub support forum on http://forums.virtualdub.org - help to reduce the big number of emails Avery Lee is getting every day !!
Support matroska as container and Gstreamer as the only truely open, x-platform multimedia platform .... |
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| ThirtyBird |
| Posted: Aug 27 2002, 05:40 AM |
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Unregistered
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Appreciate the response guys - I think I may be taking a look at a few of the AviSynth filters. I commonly do resize and deinterlace using the built in video filter, but if I can eek out an extra thread and speed it up, I will give that some exploration when I finish my new system!  |
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