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. |
20th June 2014, 13:12 | #1 | Link |
Registered User
Join Date: Sep 2003
Location: Berlin, Germany
Posts: 3,079
|
ConvertFPS
Here is a question for the AviSynth gurus (Gavino, IanB, you know who you are...)
For converting a true progressive 30 fps clip to 25 fps I like the field based method from this post: http://forum.doom9.org/showthread.ph...303#post908303 Code:
AssumeTFF() LanczosResize(720,576) changefps(50) separatefields() selectevery(4,0,3) weave Code:
interleave(last,last) changefps(50) Just curious... Cheers manolito |
20th June 2014, 16:48 | #2 | Link |
Registered User
Join Date: Mar 2014
Posts: 308
|
Three fields out of every five will be clean; the remaining two will be blended. (Selecting those three clean fields and deinterlacing would recover the source, albeit with half vertical resolution.)
A normal ConvertFPS would result in four blended fields and only one clean field out of every five fields. |
21st June 2014, 14:33 | #3 | Link |
Registered User
Join Date: Sep 2003
Location: Berlin, Germany
Posts: 3,079
|
Thanks colours for the explanation (even if I do not understand the math behind it... )
So my suspicion that the method which uses frame doubling before ConvertFPS gives better looking results with less blending was correct. Good to know. Cheers manolito |
|
|