On Sat, Jan 30, 2021 at 11:08 PM Paul B Mahol <[email protected]> wrote:
> > > On Sat, Jan 30, 2021 at 11:00 PM ilkercan Kaya <[email protected]> > wrote: > >> Hi Everyone, >> >> I am making a mobile music app where the user can add FX to current >> playing music through a two dimensional pad. I am using FFmpeg, libavfilter >> in C++ to add FX to the audio. In FFmpeg you can create an audio filter and >> set it parameters and initialize a graph. >> >> My problem is since the user will use a FX pad to change these parameters >> with their fingers I need to be able to modify these parameters during >> runtime. >> >> Looking at ffmpeg filter documentation, it says the following: >> >> "Some options can be changed during the operation of the filter using a >> command. These options are marked âTâ on the output of ffmpeg -h filter=. >> The name of the command is the name of the option and the argument is the >> new value." >> >> I looked at aecho, agate, acrusher and more but nearly all the effects I >> want have 0 modifiable option which makes my FX pad nonadjustable. >> >> Is there a way to make ffmpeg audio filters change their parameters >> during runtime? >> >> I could really use the help, thank you! >> > > It is currently not implemented, because nobody needed such feature. > > Latest git ffmpeg master, have T support for agate and acompressor and > couple others. > Also you really want both T and C (and S if performance is important) C is for commands T is for timeline with enable options. Also that documentation is wrong, C is flag you need. > > >> _______________________________________________ >> Libav-user mailing list >> [email protected] >> https://ffmpeg.org/mailman/listinfo/libav-user >> >> To unsubscribe, visit link above, or email >> [email protected] with subject "unsubscribe". > >
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