View Full Version : tv caps -> divx,.. example avs?
unimatrixzer0
24th March 2003, 21:59
I'm basically clueless when it comes to working with an avs like which combination of filters gives the best results. Right now I'm using avisynth 2.xx, but I'd like to start using 2.5x w/ YV12. Was wonder if those of you who do tv caps (in .avi w/ like mjpeg for example)-> divx could maybe post examples of some of your avs files? I cap at 640x480 so I'd need to ivtc. If you could say if your avs is either for like animation or other that would be cool.
Thanks to all those whole reply ^.^
Shayne
25th March 2003, 03:03
You ask the impossible question since every movie is different depending on your source and the age of the movie. Some will have more noise then others.
The basic princle however is to remove the noise (background flat surface movement etc) while maintaining the detail and sharpness. This will increase your compressiblity and hance your quailty. Of course removing noise also remove details so it is a trade off. What you need to do is test test test and play with the values of the filters till you see what they do. here is some you can start to play with.
mpeg2dec3.dll
Decomb.dll
Convolution3DYV12.dll
unfilter.dll
STMedianFilter.dll
UnDot.dll
Dnr2_for_25.dll
WarpSharp.dll
it.dll
You can find links to all these and more in the FAQ
Have fun and enjoy
Peace
unimatrixzer0
25th March 2003, 04:23
I wasn't refering to tapes or dvds, but caps I get off my cable tv.
Zep
25th March 2003, 06:41
and Shayne answered your question
DVD, VHS, CABLE TV it is all about filters and what you like and do not like
There are a ton of examples in other threads and in the docs (read the docs)
Experiment and have fun
wotef
25th March 2003, 11:33
here's one i used for a satellite cap
originally capped at 576,576 PAL
#source the file
AVISource("E:\CAPTURE.AVI")
#deinterlace
telecide(post=false)
#colour balance tweaking
tweak(sat=1.1)
#cutting out commercials
trim(2450,18151)+trim(24375,56876)+trim(63875,77565)
#denoising
pixiedust(limit=1)
#resizing
bicubicresize(576,432,0,0.6)
the generic structure (commented) should hopefully be easy to understand; you can experiment with different values/filters
probably the only difference for you will be whether you need to IVTC for certain NTSC material, which you would achieve by modifying the deinterlace section to include:
telecide(guide=1)
decimate()
p.s. you'd need avisynth 2.07 or 2.08 for this script, plus the decomb and dust filters for avisynth 2.0x
have fun
N_F
25th March 2003, 12:22
Originally posted by wotef
#deinterlace
telecide(post=false)
I don't really know anything about capturing (are captures usually interlaced?) so this may be stupid...
When you say deinterlace, do you mean rearrange the fields or do you really mean deinterlace?
wotef
25th March 2003, 12:32
i mean decomb :D
homersapien
25th March 2003, 15:09
Every cap is always a little different. But...for v2.0x, I like the results that Unfilter (set to sharpen) and Peachsmoother return. I don't think there is a magic combination though. You really need to do some test encodes, see which combo/order works out the best, IMO.
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