720p HD-DVD @ 59.94 fps

[Garda]

Hi.

I have a 720p HD-DVD @ 59.94 fps.


I want to encode it with x264 but i don't know what framerate is the best:

- 29.97 fps or 23.97 fps

And what decimate() sintax should i use for a smooth output file ( without studdering ) .

Thanks. :)

[foxyshadis]

There's no difference from DVD, you have to figure out what you have each time. As far as I know, all the HD releases so far are 24p upsampled to 60p. It's not hard to be sure: Step through each frame; if each is a new frame, it's native 60p, if every other, 30p, if new frames come every 2 to 3 frames alternating, it's 24p. If it's interlaced, go back to DVD rules.

24p in 60p script: Decimate(2).Decimate(5) or TDecimate(cycler=3)

[chros]

Almost exactly like foxyshadis said, but with 29.97 content (I only tried those) the 2 decimate method is not good: demux only the video stream then use sonic filters to build a graph, then see if it is a true 60 fps ...

[cwk]

@foxyshadis:

I am curious, why use decimate instead of selectevery(5,0,2)? (or whatever the proper select pattern would be)

cwk

[scharfis_brain]

because the pattern may change throughout the movie.

if you're not going to use an automatic decimator you will need to trim your video in several sections and apply each with a different offset for the selectevery function.

[cwk]

got it. Thank you scharfis_brain.