Temporalsoften and green flickering

[McQuaid]

I finally have tried avisynth 2.5x. Just downloaded the lastest version and no matter what values I use for temporalsoften, I get a flickering green screen and very choppy video.

I searched and their was a thread on the same problem, but from december and would assume this would be fixed in latest.

Here's my script.

SegmentedAVISource("E:\capture.avi")
Telecide()
Decimate(cycle=5)
converttoYV12
bicubicresize(352,264)
Convolution3d(1,0,16,0,16,3,0)
TemporalSoften(5,5,20,mode=2,scenechange=3)
lumafilter(-2)
unfilter(-5,-5)

Without temporal, everything is fine.


err, nevermind, I had actually had converttoty12 later in the script that posted above. I don't deal with dvd rips and never had a need for yv12 conversion in my scripts.

Actually still having some strange results with temporalsoftens new features (mode and scenechange). I get a black flickering sometimes and jerky video, frames seem to be swapped sometimes. If I leave out mode and scenechange everything behaves normally.

[McQuaid]

Ok even leaving out the additional options for temporalsoften, I'm still having some difficulties.

Basically, anywhere an edit is done there are a couple of jerky frames.

Most people might not encounter this doing dvd rips, but doing tv captures and editing throughout the clip will cause this.

I've just reproduced this a few times. Load a script with temporalsmoother and do an edit in vdub. Go to the beginning of the edit and there will be a couple of jerky frames.

[sh0dan]

Could you post a complete script that creates this error (it is a known bug, but it is hard to find a script that always creates this behaviour).

The solution is mostly to move the temporalsoften to another position in the filter chain.

[McQuaid]

Sorry, I kept playing with the script trying to get things working and can't seem to reproduce it myself now.

But, I am still having problems with temporalsoften. I left some stuff running to encode last night and after checking this morning, all the encodes are a slideshow (very choppy video throughout).

I did a little testing and if I do one pass quality (xvid), everything is fine. But when doing 2 pass encoding I get the slide show when using temporalsoften. I'm just testing with a simple script:

SegmentedAVISource("E:\capture.avi")
Telecide()
Decimate(cycle=5)
bicubicresize(352,264)
TemporalSoften(4,4,8)

If I remove the temporalsoften, 2 passes are done successfully, otherwise choppy video throughout.

[McQuaid]

Just testing stuff further it seems decomb and temporalsoften aren't getting along for me. If I comment out telecide temporalsoften will behave normally. Also, if I put converttoyv12 after telecide with temporalsoften active, everything grids to a crawl.

SegmentedAVISource("E:\capture.avi")
Telecide()
Decimate(cycle=5)
converttoYV12
bicubicresize(352,264)
TemporalSoften(4,4,8)

[McQuaid]

Well, went back to 2.08. Couldn't nail down the problem. After playing around this script seems to be giving the problem with a few twitchy frames after an edit.
AVISource("E:\capture.avi")
telecide()
Decimate(5)
converttoYV12
bicubicresize(352,264)
Convolution3d(1,0,16,0,16,3,0)
Temporalsoften(4,8,10,mode=2,scenechange=8)

This problem can be seen with even just going backwards through frames in vdub with the arrow keys and then forward again. I even did the edits with temporalsoften commented out and then reloaded the script and just straight encoded without going through the video in vdub but still had the problem in the final encode.

Also, sometimes when holding down the arrow key in either direction in vdub would result in a freeze frame of the current frame and it just fading to black as the arrow key is held. I want some of the features of 2.5x, but something is not working out on my system.

specs: p4 1.6, gf4, using vdub 1.5 and was trying the latest beta of avisynth 2.51