On Thu, May 14, 2020 at 08:53:58PM +0200, Marton Balint wrote:
>
>
> On Thu, 14 May 2020, Nicolas George wrote:
>
> > Marton Balint (12020-05-14):
> > > I am not a huge fan of this patch, mafd refers to a score between this
> > > frame
> > > and the previous frame, we cannot ensure that there were no additional
> > > frame
> > > processing between scdet and this filter which may have duplicated or
> > > removed frames. So I'd rather not add this feature.
I try to keep the old logic, after it's single filter, we can improve the
detection.
> >
> > It can only happen if the user has put filters in the middle. I move we
> > trust users who insert such obscure filters to do what they want to, or
> > to fix their issues if they have some.
>
> Fine, I am not blocking this if null pointer deref issues are fixed.
>
> I think we can also assume that if the metadata exists, it will contain a
> valid number, so I suggest this code:
>
> e_mafd = av_dict_get(next->metadata, "lavfi.scd.mafd", NULL,
> AV_DICT_MATCH_CASE);
> if (e_mafd) {
> mafd = strtod(e_mafd->value, NULL);
> } else {
> s->sad(crnt->data[0], crnt->linesize[0], next->data[0],
> next->linesize[0], crnt->width, crnt->height, &sad);
> emms_c();
> mafd = (double)sad * 100.0 / (crnt->width * crnt->height) / (1 <<
> s->bitdepth);
> }
thanks, I'll try to reproduce the issue and test the code.
>
> Regards,
> Marton
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
--
Thanks,
Limin Wang
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
