[FFmpeg-devel] New filter: remap?

[F.Sluiter]

Yes, i am currently interested in pixels only. Effects I am after are
related to lens corrections.
Op 26 feb. 2016 12:42 schreef "Paul B Mahol" <onemda at gmail.com>:

> On 2/26/16, Thilo Borgmann <thilo.borgmann at mail.de> wrote:
> > Am 25.02.16 um 22:24 schrieb F.Sluiter:
> >> If it doesn exist I would like to develop a new filter and would like to
> >> check if nobody is already working on it or that it exists under a
> >> different name.
> >>
> >> I have been researching the following usecase:
> >>
> >> Similar tot the displace filter, I would need a filter to remap pixels
> >> (the
> >> difference being that displace displaces the pixels relative to where it
> >> was, remap would specify where the target pixel originates from):
> >>
> >> Description: Remap pixels as indicated by second and third input stream.
> >>
> >> It takes three input streams and outputs one stream, the first input is
> >> the
> >> source, and second and third input are targetmaps. The second and third
> >> input specifies the x.y coordinate where the pixel in the target stream
> >> originates from. Note that once generated, remap files can be reused
> over
> >> and over again. Source and target do not have to have the same size.
> >> The effect I am trying to achieve is hard to compute with the relative
> >> "displace", and a lot more straightforward with "remap".
> >
> > Why not extend the displace filter to act relative/absolute based on a
> > parameter?
>
> Displace works on pixels components, I guess OP wants to work only with
> pixels.
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