[MEncoder-users] Newbie struggling with pullup

[Rich Felker]

On Wed, Feb 27, 2008 at 10:13:59PM -0600, Laine Lee wrote:
> On 2/27/08 8:04 PM, "Rich Felker" <dalias at aerifal.cx> wrote:
> 
> > No, 1280x720 @ 60 fps is progressive content with duplicated frames,
> > rather than (field-based) telecine. You can either use the decimate
> > filter with the right settings (and the right -ofps) to remove the
> > duplicate frames, or use the tinterlace=4 filter prior to pullup to
> > convert to normal telecine which pullup can handle. The latter
> > approach is probably better.
> 
> Thanks. I had already stumbled onto that tinterlace=4 before pullup but am
> still trying to refine it. Actually, the following filter chain resulted in
> the fewest reports of skipped or duplicated frames.
> 
> tinterlace=2,pullup=8:8:8:8:-1:1,softskip,hqdn3d=2:1:2,pp=fd,scale=720:480,h
> arddup
> 
> But in 30000/1001 output, I always see a pattern of 5 frames with the 4th
> and 5th being similar (duplicate). Would decimate have a better chance of
> giving me output with only unique frames?

The output is not supposed to be 30000/1001 but 24000/1001, so what
you're seeing is perfectly natural. Just fix the ofps. And please keep
replies on-list, ALWAYS.

Rich