reverse 3:2 of 720p material?

[slam_to]

Hi All,

I'm trying to convert some of the OTA HD material I've captured onto my file server from ABC and FOX. I know the material I have is 23.98 source material, but was transmitted at 59.94.

I'd like to convert it back to 23.98 and then recompress it to save a bit of room.

I've been using VirtualDub to try to convert them, but VirtualDub's reverse 3:2 pulldown option only expects interlaced material. I've tried converting the frame rate to 23.98, but of course if there's a bad frame edit and I throw the sequence off, I get massive frame studdering.

Is there a new plug-in, or an updated version that handles progressive material? Do I need to switch programs?

Any help of clues would be appreciated.

[guns1inger]

This post has most of what you need

https://forum.videohelp.com/viewtopic.php?t=309425

[manono]

Time to learn some AviSynth, as VDub's filters can't handle what you need:

AviSource(C:\Path\To\Video.avi")
LoadPlugin(C:\Path\To\Decomb.dll")
SelectEven()
Decimate()
LanczosResize(xxx,yyy) #don't forget to resize, unless you plan to keep it at 1280x720

[jagabo]

If the movie was broacast as 720p there's no need to decomb. The frames are progressive and alternate between 2 and 3 repeats per film frame. You can use SelectEvery() to pull out the frames you want.

AviSource(C:\Path\To\Video.avi")
SelectEvery(5, 0, 3)
LanczosResize(xxx,yyy)

Depending on where the recording starts you may have to use SelectEvery(5, 0, 2) instead.

112223344455666 (film frame numbers repeated in 2:3 pattern)
0--3-0--3-0--3- (selected frame # of each group of 5)

122333445556677 (film frame numbers repeated in 2:3 pattern)
0-2--0-2--0-2-- (selected frame # of each group of 5)

You may run into problems if the video was edited after being converted to 59.94 fps. There may be breaks in the 2:3 pattern. You can get around that by first reducing the frame rate to 29.97 fps by selecting every other frame with SelectEvery(2, 0) then using Decimate to eliminate the repeated frames.

[slam_to]

Thanks everyone, I'll give it a try this weekend!

I guess it's time to grow up and use AviSynth.