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View Full Version : I don't understand frameservers, etc... what's the use ?


mrbruno
30th March 2004, 16:22
here is a NOOB question :

Why use complicated software such as
frameservers, etc... when you can
import vob files directly into vdubmod
to encode them to xvid ?

I mean, that's what I do and it works
fine...except that it is very sloooooow...
especially when using filters.

I've tried Gnot but it gives me headaches...
it's so complicated ! I can't understand how
to use it ! Although I try to follow
the guides, there is always something that
goes wrong !

It's so simple with vdubmod.

So please tell me what's wrong with my point
of view, and try to convince me to use gordian knot !

thanks.

starwarsandrisk
30th March 2004, 18:02
well.... there are some issues with vdubmod... and using it as a framserver..... if you got all the way through gknot you would notice that it would use vdubmod to encode the xvid files.... it just used avisynth to be the frameserver..... you ask why?.... because avisynth can sometimes be a quicker solution and also its easy to work with (simple avs script) and it also has alot better filters to use with it.... giving you an overall better video... and isn't that what we're looking for anyway?

jggimi
30th March 2004, 20:05
Both VFAPI and AviSynth are frameservers. I can only comment on AviSynth: Vdub and its variants can use Fast Recompress mode, providing a significant performance improvement over full processing.
The colorspace stays YV12 throughout the process, negating any color shifts back and forth to RGB, required in Full Processing mode.
AviSynth scripts can be used almost any encoder that support AVI. Input video can be from any AVI, MPEG2, or DirectShow compatible source, including segmented AVI structures.
Scripting allows for great control over the transcoding, usually greater than available by the encoders' built in tools.
Many more video modification tools -- filters -- are available than with any encoder.

starwarsandrisk
30th March 2004, 20:20
what changes the colorspace from yv12 to rgb?.... does avisynth do that?.... or virtualdub?... anyways... jggimi has all of those points... try using avisynth and all of what it has to offer and use virtualdub to encode as you normally would and you can make the decision for yourself....

another thing.... if you're having issues with gknot... you can try the "gknot lite" witch is autogk... take a look at it in the gordian knot forum... its not for power users but its quick and easy

jggimi
30th March 2004, 20:40
what changes the colorspace from yv12 to rgb? Full Processing mode (required for Vdub/VdubMod/Nandub filters).

starwarsandrisk
30th March 2004, 20:54
oooh... see i thought there was a good reason... and avisynth keeps it as yv12..... okay.... sounds good.... where virtualdub will switch it back and forth to get the right kinda colorspace for its filters.... ooo... i didn't know that... icky...:eek: :angry: :sly: :(

jggimi
30th March 2004, 21:07
http://forum.doom9.org/showthread.php?s=&threadid=68891