2hours to dub

[natty]

do this sound about right it took me 2 hours to Dub a 700mb avi movie using VirtualDub as I had added brightness filters etc, surely there must be a program which can Dub in a lot less time than 2 hours plus which also uses less memory, as I couldnt do any other work on pc whilst it was dubbing this movie, I am on windows xp pro, 2,200mhz amd athlon with 768mb ram. a faster and less mem hog program would be much appreciated, if anyone knows of one.

[jimmalenko]

Sounds about right to me. The second you add filters you have to process each and every frame, and assuming a 90 minute movie that means about 135000 frames for PAL people or nearly 162000 for NTSC.

So if you work laterally you'll see that virtualdub is taking approximately 7200 seconds to process 135000 frames, or around 19 frames per second, which is quite fast IMHO.

[guns1inger]

As well as processing these frames to apply the filters you set up, it is also encoding the video to whatever settings you chose. Encoding is processor intensive, even without the filters.

If you want to get it done faster, get a faster computer. If you want to do something else at the same time, either lower the priority of the vdub processes (which will consequently make it take much longer) or get a second PC just for video processing.

[natty]

ok many thanks all for the replies at least now I know its not my pc memory I just didnt realise 2 hours was about right. anyway guns1inger you said

If you want to do something else at the same time, either lower the priority of the vdub processes

where in VirtualDub or VirtualDubMod do you lower the priority, as this would help as i am no hurry to convert the movies, at least then i can still do other things on pc

[guns1inger]

Open the task manager (right-click on the task bar and select Task Manager), click on the Processes tab. Locate the vdub process, right-click and choose Set Priority. Set it to low to reduce the amount of CPU time it gets per cycle.

[manono]

In Options->Preferences of VDubMod is a way to permanently change the priority. I have mine set for Idle. Maybe there's something similar in VDub.

Also, if you frameserve using AviSynth, do your filtering in AviSynth, and use Fast Recompress in VDub, your encoding will take at least a third less time. If it took you 2 hours doing it the way you did, it shouldn't take over 80 minutes frameserving via an AviSynth script.

[natty]

manono

you checked your private messages