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| Unofficial VirtualDub Support Forums > Testing / Bug Reports > Vdub 1.6 Slower ? |
| Posted by: affter333 Nov 25 2004, 03:27 AM |
| I use alt + left to fastfoward DV clips in vdub1.510 It goes very fast and smooth. when in vdub 1.61, It's not very smooth.. (pause every few second) as if it can't keep up with my key |
| Posted by: phaeron Nov 25 2004, 06:51 PM |
| Starting with VirtualDub 1.6, decoding of preview frames is time-sliced. This means that the interface no longer locks while decoding a long series of frames, and that you can abort a really long decode if you decide you want to see a different frame. However, it means that if you hold down a seek key the step key may skip a bit, if the decoding can't keep up with the step size and the keyboard repeat rate. The code allows up to 100ms of decoding after frame selection before time-slicing begins, which shouldn't affect DV since there are no delta frames in that format. However, there does seem to be some unwarranted pausing. I'll look into it. |