[FFmpeg-devel] [PATCH 2/3] avfilter: add audio upsample filter
george at nsup.org
Thu Apr 25 22:13:49 EEST 2019
Paul B Mahol (12019-04-25):
> Not really, it works with 2x/3x/4x/5x.. sample rate or 1/2 / 1/3 / 1/4 / 1/5
> o sample rate in other direction.
I do not think so: the algorithm can work for absolutely any ratio. The
effect on the spectrum will not be as clean if the ratio is not an
integer, but that is another problem.
> It can not be done in aresample filter because of limitations of query_formats
> code in libavfilter
> and doing it anyway for aresample filter would
> cause many regressions.
I do not think so. Please elaborate.
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