On 25/08/15 19:36, Zehan Wang wrote:
> Hi
>
> I was just wondering how I could change the filter size when I rescale
> videos with the lanczos filter?
>
> I've tried specifying -sws_flags lanczos -param0 <filterSize> but
> specifying -param0 doesn't really seem to change anything...
>
> Any help here would be greatly appreciated.
in utils.c I see
else if (flags & SWS_LANCZOS)
sizeFactor = param[0] != SWS_PARAM_DEFAULT ? ceil(2 *
param[0]) : 6;
So it should work in theory.
lu
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