[libav-tools] Changing filter size for lanczos rescaling
lu_zero at gentoo.org
Tue Aug 25 22:39:52 CEST 2015
On 25/08/15 22:11, Luca Barbato wrote:
> On 25/08/15 19:36, Zehan Wang wrote:
>> 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 != SWS_PARAM_DEFAULT ? ceil(2 *
> param) : 6;
> So it should work in theory.
Figure why it is not in avconv. I'll rectify it soon. Thanks a lot for
More information about the libav-tools