Virtual Dub filters

[dawgzzz9]

ok i searched and didnt find anything in the forums. is there a filter for virtual dub that allows me to slow down the video or speed it up? in essence, fast/slow motion? thanks

[Dreassica]

cant u just change the framerate??

[morsa]

Well I am looking for a Vdub Add noise filter like ffdshow´s one.
It would be really great using it to obtain a kind of Film Look joined with deinterlacing and the correct gamma settings (always talking about PAL source).
I´ve tried myself to port it from ffdshow but I can´t understand its source code (sorry I´m just learning C++)
Is there something similar to what I´m talking about??
thx

[cablemonkey]

I don't use VDub much (so i can't say for sure) but if you use AviSynth at all you might want to take a look at SansGrip's new AddNoise filter:

http://www.jungleweb.net/~sansgrip/avisynth/

Its relatively new and still in the early dev stage, but i've had excellent results with it. The thread discussing it in the Avisynth forum follows:

http://forum.doom9.org/showthread.php?s=&threadid=37135

[morsa]

But it doesn´t seem to let you add luma and color noise with different parameters.

[hakko504]

This is an example of how to have different parameters for luma and chroma in AVISynth.
a=AVISource("clip.avi")
luma=AddNoise(...) #Add pareameters for luma noise here
chroma=AddNoise(...) #Add pareameters for chroma noise here
final=MergeChroma(luma,chroma) #Take the luma channel from luma and chroma channel from chroma and add them into the final clip.
return final

[milan]

Well I am looking for a Vdub Add noise filter like ffdshow´s one.
It would be really great using it to obtain a kind of Film Look joined with deinterlacing and the correct gamma settings (always talking about PAL source).


I'm working on ffvdub currently. It's VirtualDub filter which uses ffdshow to process video. It's working now, but still needs some testing before releasing. But if you want, you can download its sources from ffvdub module from ffdshow CVS at SourceForge.
RGB32->YV12 and YV12->RGB32 conversions are required for each frame processed so it's not as fast as when directly processing mpeg 1/2/4 video.