[FFmpeg-devel] New filter: remap?

F.Sluiter fsluiter at gmail.com
Thu Feb 25 22:51:58 CET 2016


Could you actually be more specific, what would be needed for 16bit
support? I was naively thinking to just a binary copy from source pixel to
target for starters.


2016-02-25 22:40 GMT+01:00 F.Sluiter <fsluiter at gmail.com>:

> It would also be relatively easy to implement anti-aliasing (probably in
> version 2).
>
> 2016-02-25 22:38 GMT+01:00 Paul B Mahol <onemda at gmail.com>:
>
>> On 2/25/16, F.Sluiter <fsluiter at gmail.com> wrote:
>> > 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".
>>
>> With 16bit support too? Go ahead, nice idea :-)
>>
>> I'm interested in motion estimation/interpolation/compensation filters
>> too.
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>
>


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