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| fccHandler |
| Posted: May 16 2003, 05:30 AM |
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Administrator n00b
Group: Moderators
Posts: 3961
Member No.: 280
Joined: 13-September 02
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Just wondering... If I enable both "Synchronous blit" and "DirectDraw acceleration" for preview (in VirtualDub 1.5.1), the video decoding is amazingly fast, but A/V sync suffers. Why is that?
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May the FOURCC be with you... |
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| phaeron |
| Posted: May 17 2003, 02:18 AM |
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Virtualdub Developer
Group: Administrator
Posts: 7773
Member No.: 61
Joined: 30-July 02
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The synchronous DirectX path is missing a waitPulse() call, so the video frames aren't properly being throttled. However, I don't feel like fixing this right now because trying to test it caused my XP-based laptop to reboot.. DirectX is such a piece of crap.
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| fccHandler |
| Posted: May 17 2003, 04:15 AM |
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Administrator n00b
Group: Moderators
Posts: 3961
Member No.: 280
Joined: 13-September 02
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Thanks for the explanation. And don't bother about it; it's no big deal.
P.S. Here's a quick fix: change the name of the menu item to "Asynchronous blit."
 
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