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. |
27th January 2008, 20:02 | #31 | Link |
brainless
Join Date: Mar 2003
Location: Germany
Posts: 3,653
|
WOW! That is very interesting.
There always was the problem, that rePAL only was able to put out 24.975fps instead of 25fps. Which are the changes you made to compensate for the 1000/1001 deviation? How stable is it to still lock to the pattern?
__________________
Don't forget the 'c'! Don't PM me for technical support, please. |
27th January 2008, 20:54 | #32 | Link |
A hollow voice says
Join Date: Sep 2006
Posts: 269
|
After several versions / iterations the mod devolved into a very minor tweak. The extra frame is emitted 'outside' his state machine. If anything I'd say it helped the pattern lock, but then I've only tested with my one oddball DVD. Give it a whirl - turn on 'show' and watch behaviour at N*1001 vicinities.
FYI & FWIW - This mod is indirectly related to my 'numerical oddity' post in the other forum; tracking a cadence feature (repal's "anchor") is what led me to this mod. |
27th January 2008, 21:04 | #33 | Link |
brainless
Join Date: Mar 2003
Location: Germany
Posts: 3,653
|
so your mod equals to this script with the old version:
mpeg2source("NTSC.d2v") #29.97 fps bob() #59.94 fps changefps(60) #60.00 fps repal() #25.00 fps
__________________
Don't forget the 'c'! Don't PM me for technical support, please. Last edited by scharfis_brain; 27th January 2008 at 21:09. |
27th January 2008, 21:32 | #34 | Link |
A hollow voice says
Join Date: Sep 2006
Posts: 269
|
Don't know, as I don't know what cadence changefps would use - ie when / where does it insert the dup(s). The 'wrong' place could even cause his state machine anchor to shift.
I emit it at a time that is both procedurally convenient AND seems to 'mate' with his state machine ( useframe%2400==0 ). This is where the cadence error has accumulated to a significant amount, the cadence group size has increased to 13 (from 12), and his state machine always seems to end up choosing a frame 2 or 3 away from this point on BOTH sides (smooth motion) with it being emitted at that point. And this frame is never a blend, at all the points I've checked on my DVD (probably about a hundred or so). Like I said: It satisfied my need; Your Mileage May Vary enjoy |
Thread Tools | Search this Thread |
Display Modes | |
|
|