Avisynth: Good Compression?

muhali3 · #1 10-13-2003, 03:54 PM

what filters apply the most compression?

i've asked this question at doom9 but nobody answered.

Edeen is the only one i have tested so far.

Thanks

Dialhot · #2 10-13-2003, 04:26 PM

You question isn't very smart.

Blur( 1.58 ) will give you an extreme compression, but an image unwatchable.

So ?

jorel · #3 10-13-2003, 04:31 PM

Quote:

Originally Posted by Dialhot

You question isn't very smart.

Blur( 1.58 ) will give you an extreme compression, but an image unwatchable.

So ?

unfilter(-100,-100)
extreme compression but unwatchable too!

Dialhot · #4 10-13-2003, 04:50 PM

Best compression ever :

Code:

Blankclip(length=last.Framecount)

I assure you that you can put 10 hours of video on a single CD with this

muhali3 · #5 10-13-2003, 05:34 PM

muhali3 · #6 10-13-2003, 05:39 PM

ok. one more thing. i'm encoding resident evil with my avisynth script like this.

LoadPlugin("C:\unzipped\filter/deen_25_dll_20030119[1]/deen.dll")
LoadPlugin("C:\unzipped\filter/GripFit_YV12[1]/grip.dll")
LoadPlugin("C:\unzipped\filter\UnDot[1]/undot.dll")
LoadPlugin("C:\unzipped\filter\dctfilter_25_dll_20 030221[1]/DCTFilter.dll")
LoadPlugin("C:\unzipped\filter\Sampler-0.2a[1]/Sampler-2.5.dll")

AviSource("c:/unzipped/movies/resident evil.avi")
GripCrop(544, 480, overscan=1, source_anamorphic=false)
GripSize(resizer="BilinearResize")
Undot()
Deen()
DCTFilter(1,1,1,1,1,1,0.5,0)
GripBorders()

, but somehow this is faster than just encoding the movie without filters or anything.

Can filters also give a speed gain?

sorry, if that is a stupid question. the only filter i read about with a speed gain was TemporalCleaner.

rendalunit · #7 10-13-2003, 11:30 PM

by 'speed gain' you mean encoding time right? Each filter you add into the chain will increase the encoding time. The fastest speed would be to encode at a lower resolution (like 352x240) with no filters.

muhali3 · #8 10-14-2003, 02:42 PM

yeah i mean encoding time. but it was only faster when i put it on system(video+audio). So i guess Elementary Stream Video takes longer.

Dialhot · #9 10-14-2003, 03:13 PM

For sure not. Encoding audio with TMPGENC takes 15% more time.

muhali3 · #10 10-14-2003, 04:37 PM

my TMPGEnc is just messed up then. because i put it on with just the AVI File and set it to es(video), and it said 6 hours. then i put it on system(video+audio) with an avisynth script and it said 4:36 hours. so whatever, who cares.

Dialhot · #11 10-14-2003, 05:18 PM

If you do a resizing in your avisynth script that is not dfone in your test with the avi directly, for sure the time is different !

Why use a script ? For doing both test you can use directly the avi. and toggle by hand the encoding mode from ES to System.

Note: I care to not giving false informations to people reading us