[FFmpeg-devel] [PATCH] avfilter: add nonlinearstretch filter.

[Paul B Mahol]

On 6/22/20, Mathias Rasmussen <mathiasvr at gmail.com> wrote:
> On 22 Jun 2020, at 15.57, Paul B Mahol <onemda at gmail.com> wrote:
>>
>> I really doubt that this filter have anything to do with GoPro's
>> SuperView.
>> GoPro's SuperView, unlike this filter, extends FOV of currently
>> recording video with real data.
>
> Please see https://community.gopro.com/t5/en/What-is-SuperView/ta-p/390201
> <https://community.gopro.com/t5/en/What-is-SuperView/ta-p/390201>,
> I fail to see how this is not nearly identical to what this filter does, so
> please enlighten me if i’m wrong.
> I don’t know what you mean by “real data” but i’m very interested if you
> have information of GoPro using other data than the 4:3 sensor image.
> Also, are you saying this filter cannot be used on “currently recording
> video”? It's not really the intention, but I don’t see why not?
>

I simply looked at youtube videos and images, as I never trust their
documentation.

>> Also this filter is very limited in functionality. I already have
>> another generic warp filter
>> that can do this and much more.
>
>
> That’s great, do you have an example of how to use it for achieving this
> type of stretching?

The filter is not for public.