[FFmpeg-devel] [PATCH v3][GSOC] avfilter: add atone filter

[Paul B Mahol]

On 3/17/20, Marshall Murmu <marshallmax1991 at gmail.com> wrote:
>  I hope this one's simple enough

It is not simple at all. How do you plan to extend it and add other
instruments and so on later?

Use some state variable, which will hold current number of samples
outputted per tone and use loops.

There is filter private context exactly for that.