On Sat, Jan 30, 2021 at 11:12 PM Paul B Mahol <[email protected]> wrote:
> > > 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. > Ignore that line, C is for output of "ffmpeg -filters" T is for "ffmpeg -h filter=agate" > > > >> >> >>> _______________________________________________ >>> 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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