ok, up until now, I've been using vfapi reader to frameserve. but I've seen people say that it's bad, and that avisynth is to prefer. I think had something to do with bad conversion of some sort. so I was wondering if anyone could tell me how to do write a an aviscript for this purpose? I do the resizing and such within virtualdubmod and take care of the audio by itself.
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What exactly are you doing ?
I ask this because avisynth can do all that virtualdub does and more. If you are doing a resize and maybe a couple of filters, avisynth with do this faster than vdub can (up to 2 or 3 times faster). There seems little point using avisynth simply to frameserve to virtualdub. Do you then frameserve to anything else ?Read my blog here.
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I'm assuming DVD to AVI given the forum and context of usage - my guess is using VFAPI on a .D2V file.
If this is in fact the case, one then must say, why not rip to one big VOB and open that in virtualdub-MPEG2 or virtualdubmod directly ? No need to frameserve anything thenIf in doubt, Google it. -
As said if you use any VDub filters, then there is no point in AVISynth. The reason for using AVISynth is to avoid a RGB24 colourspace conversion (costs encoding time and quality). Since VDub filters require converting to RGB24, there is no point. You just get DVD(YV12)-->AVISynth(YV12)-->VDub(RGB24)-->AVI(YV12) instead of
DVD(YV12)-->VFAPI(RGB24)-->VDub(RGB24)-->AVI(YV12)
No real difference. If instead you filter in AVISynth then the entire chain is kept in YV12 colourspace, decreasing encoding time and increasing quality. -
I do mainly two filters, null transform to crop, and resize to u guessed it resize. not sure if I could crop without a GUI.
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k, thanks. I found a good guide for setting up a script and I should be able to get it working.
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k, I messed around a bit with it, and I got a nice little script with crop and resize. but this is an almost 4 hour long movie that I want to cut to 3cd's. is there any way I can frameserve only selected frames of the movie from within the script or do I need to cut with virtualdubmod? I find the latter a bit akward as there is no real cuts in the movie, just blends.
it would be nice to have 3 separate scripts only serving parts I want it to. any help is appreciated. -
k, I don't know what it means to bar this Trim() command.
isnt the trimming command for cutting away stuff?
then I need to trim twice for the 2nd cd. will the script allow for that?
or did I misunderstand, that the trim command is for selecting the part u encode?
sorry, I'm a bit tired now, maybe I'm missing the obvious. -
The trim command is for stuff you want included. So for a 90,000 frame video cut into 3 your first script would have Trim(1,30000), your second script would have Trim(30001,60000) and your third script would have Trim(60001,90000) for example.
If in doubt, Google it. -
k, then we're on the same page. thanks buddy
edit:
just got to add that 0 is a frame too, in case someone else reads this. so it should be trim(0,30000)
for audio's sake :P -
ok, back again. having a slight problem with a script for a different movie. here's the script:
LoadPlugin("g:\stuff\progs\dgindex\dgdecode.dll")
mpeg2source("D:\taxi\taxi.d2v")
Crop(2,128,-2,-126)
LanczosResize(640,272)
Trim(0,128255)
I encoded this last night, but the final file still had black bars at the top and bottom of the movie. I used the numbers I got from looking at the movie in virtualdubmod's null transform filter crop options.
what did I do wrong? the black bars dont show when I open it in virtualdubmod after applying the crop to the script, only on finished avi. -
what did I do wrong? the black bars dont show when I open it in virtualdubmod after applying the crop to the script, only on finished avi.
So open the finished AVI in VDubMod. If you don't see any black bars, then they're being added by your player on playback. If you see them in VDubMod, then you didn't crop properly. With that script, I'd guess all the black is gone. -
it was the player, it normally doesnt do that. but I guess the included subs forced it to. thanks.
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Well if you have subs then the sub filter could be expanding to 16:9 or 4:3 by adding black bars. The idea is that it is better to expand and have the subs on the black instead of over the picture since you have the room.
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