Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Capturing and Editing Video > Avisynth Usage

Reply
 
Thread Tools Search this Thread Display Modes
Old 8th February 2011, 01:36   #1  |  Link
halpern
Registered User
 
halpern's Avatar
 
Join Date: Jan 2005
Location: USA
Posts: 52
Yadif vs TIVTC

I have two different shows I'm trying to encode. MeGUI selected Yadif for one video and TIVTC for another during its analysis. I've noticed that Yadif (24fps) is about twice as fast as TIVTC (10-12fps). Any reason for this? Can I use Yadif in place of TIVTC? I'm getting horrible encoding fps using both in my opinion, but TIVTC is horrible.
halpern is offline   Reply With Quote
Old 8th February 2011, 01:51   #2  |  Link
Video Dude
Senior Member
 
Join Date: Apr 2004
Posts: 1,049
Yadif and TIVTC serve different purposes.

Yadif is a deinterlacer and TIVTC is an inverse telecine filter.

Yadif is for use on interlaced video. Usually the frame rate will stay the same, but you can also choose to double the rate.

TIVTC is used to restore a video to 24fps after it has been telecined. Sometimes an inverse telecine filter is followed by a deinterlace filter to clean up any comb artifacts and also a decimate function to remove repeat frames.

Last edited by Video Dude; 8th February 2011 at 01:58.
Video Dude is offline   Reply With Quote
Old 8th February 2011, 02:43   #3  |  Link
Blue_MiSfit
Derek Prestegard IRL
 
Blue_MiSfit's Avatar
 
Join Date: Nov 2003
Location: Los Angeles
Posts: 5,864
Post the scripts being used in either case. Chances are MeGUI is using TIVTC with EEDI2 or some other EDI filter, which more often than not (in my experience) is overkill.

Derek
__________________
These are all my personal statements, not those of my employer :)
Blue_MiSfit is offline   Reply With Quote
Old 8th February 2011, 03:58   #4  |  Link
halpern
Registered User
 
halpern's Avatar
 
Join Date: Jan 2005
Location: USA
Posts: 52
Here is my script generated by MeGUI for my Xvid encode. I just don't see why I'm getting such low FPS for my computer. I have an AMD X2 64 6000+ which isn't that bad.

SetMTMode(2,0)
LoadPlugin("C:\Program Files (x86)\MeGUI\tools\dgindex\DGDecode.dll")
DGDecode_mpeg2source("H:\hdtvshow.d2v", info=3)
LoadPlugin("C:\Program Files (x86)\MeGUI\tools\avisynth_plugin\ColorMatrix.dll")
ColorMatrix(hints=true, interlaced=true, threads=0)
LoadPlugin("C:\Program Files (x86)\MeGUI\tools\avisynth_plugin\TIVTC.dll")
tfm(order=1).tdecimate(hybrid=1)
crop( 0, 8, -2, 0)

LanczosResize(624,352) # Lanczos (Sharp)
#denoise

Last edited by halpern; 8th February 2011 at 05:22.
halpern is offline   Reply With Quote
Old 8th February 2011, 07:26   #5  |  Link
Nightshiver
Quality Freak
 
Join Date: Jun 2007
Location: Area 52
Posts: 597
Quote:
Originally Posted by halpern View Post
I have two different shows I'm trying to encode. MeGUI selected Yadif for one video and TIVTC for another during its analysis. I've noticed that Yadif (24fps) is about twice as fast as TIVTC (10-12fps). Any reason for this? Can I use Yadif in place of TIVTC? I'm getting horrible encoding fps using both in my opinion, but TIVTC is horrible.
Bah ha! 10 fps? You're doing pretty darn good by my books When you start counting the seconds per frame, then you're allowed to say that it's slow.

Honestly though, you're tfm script is rather basic and simple, no edi overkill or any other nonsensical calls besides that. Videodude did hit on a point though, just because they might give you the same or similar visual results, they are 2 completely different filters/functions.
Nightshiver is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 13:19.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.