[MEncoder-users] converting a 59.940 FPS avi into a 23.976 FPS one

[D Richard Felker III]

On Wed, Feb 02, 2005 at 03:34:19PM -0800, Trent Piepho wrote:
> On Wed, 2 Feb 2005, D Richard Felker III wrote:
> > 
> > what?!?!?! why? if the video is already nice 60 fps progressive, just
> > leave it that way. interlacing it is ruining what you've got..
> 
> The original source was not progressive, it was interlaced.  Depending on what
> has been done to the source to upconvert it to HD, it may still be the same
> interlaced stream, just transmited as a sequence of 720 pixel high fields
> instead of 240 pixels high.  Dropping every other frame is the same as
> recording normal NTSC video and dropping every other field and then doubling
> the height of the fields you do capture.  That's a poor way to capture video.

well still leave it progressive 60 fps, even if you cut the heights to
half. nothing further is gained by storing the video as interlaced; it
just makes it impossible to play it with mplayer.

rich