[MPlayer-users] scanlines/telecine/interlaced lines while watching fast actions?

[Yang]

thanks a lot!

I'll try the solutions. btw, somehow within the 10 DVDs in the same set,
only this one got this problem.




On Mon, Aug 11, 2014 at 11:51 AM, Reimar Döffinger <Reimar.Doeffinger at gmx.de
> wrote:

> On Tue, Aug 05, 2014 at 02:23:05AM -0700, Yang wrote:
> > when I play this DVD, whenever the scene changes fast ( a person waving a
> > hand), it starts to show interlaced lines/scanlines on the fast-moving
> > parts ( please see an example in the attached image)
> >
> > what is this symptom called? how could I fix it?
>
> It is called interlacing.
>
> > playing this DVD with a regular home DVD player, or playing it on windows
> >  both work fine, but not on linux
>
> For the DVD player, it is probably solved by sending an interlaced
> stream to the TV/display and letting it deal with it.
> That should be possible, but quite painful to do on Linux.
> The other option is to enable deinterlacing.
> One way is to use -vo vdpau with its deint option.
> Another is to use e.g. -vf yadif
> If only speed matters, just reducing the horizontal
> resolution by half via e.g. -vf field
> For NTSC content, a better solution often is inverse telecine,
> as it can 100% restore the original content.
> This is also supported by VDPAU (at least some implementations of it),
> -vf ivtc is one example of a filter doing it.
> However I do not have enough experience with that to recommend anything.
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