[FFmpeg-user] How to deinterlace with simple blend or add

Paul B Mahol onemda at gmail.com
Fri Dec 25 17:00:26 CET 2015

On 12/25/15, MI <mi.lists.ffmpeg at alma.ch> wrote:
> I have a video which was orginally shot progressive, then encoded as
> interlaced. How
> can I most efficiently get back to the original progressive frames?
> For real deinterlacing, I usually use  -vf "yadif=0:-1:0". That works very
> well with
> material shot as interlaced, but requires a lot of processing.
> In this particular case, I don't need any sort of smart processing. Fields 1
> and 2 of
> my "pseudo-interlaced" movie only need to be added together into a
> progressive frame.
> But I cannot find the correct filter to do this very simple task. And I
> obviously
> want to make sure I'm not just dropping every second field, and losing
> resolution.
> Or is there  a summary somewhere on the various deinterlace options, with a
> description of what they do exactly? I couldn't find it.

Could you provide short sample?

There is tinterlace filter, have you tried its various modes?

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