[FFmpeg-devel] [RFC] Proposal for improved remap filter

[Paul B Mahol]

On 5/17/18, Paul Holland <paul at pixvana.com> wrote:
> The general feature provided by the remap filter is important in a number
> of use cases.  Lens distortion/correction is one that has been discussed
> previously.  But it is also a key feature in processing video material
> intended for Virtual Reality and 360 degree playback.  These workflows
> employ non-linear reprojections of the frame in order to deliver video that
> can be played back by VR-based (head mounted display) players.
>
> The current implementation of the remap filter isn't well suited for this
> task primarily because it is missing high-quality filtering logic similar
> to what is available in swscale.  I would like to propose that this be
> addressed, and would like to either join or lead an effort to do so.

What exactly need to be added/implemented for remap filter?