ilkercan Kaya (12021-02-01): > I am making a mobile music app where the user can add multiple different > FXS at runtime to current playing music through a two dimensional pad with > an effects header. I am using FFmpeg, libavfilter in C++ to add multiple FX > to the audio. > > My problem is, the user can disable any of the FX's I am using at any time > as they wish, the effects I use are agate, lowpass, highpass. The graph is: > > abuffer -> lowpass -> highpass -> agate -> aformat -> abuffersink. > > >From time to time, I want to disable some of the following lowpass, > highpass, agate. So I thought I could just reconfigure the graph and > basically get rid of links to fulfil my wish. I am not sure this is the > right way to do it tho. I tried to dig online but all I could find was a > thread from 2012 with no conclusion. Libavfilter documentation doesn't say > anything about reconfigure or reset existing filtergraph (of that I could > find). > > What would be the best way to do this?
libavfilter does not support reconfiguration of a graph. You would need to reinit the whole graph from scratch. A simpler solution, if you only need to implement enabling and disabling some of the filters, you can expect the "timeline" support does the trick: https://ffmpeg.org/doxygen/3.4/group__lavfi.html#ga00c4b8da7d5d89fa4ddc5dcdf72bffca https://ffmpeg.org/ffmpeg-filters.html#Changing-options-at-runtime-with-a-command https://ffmpeg.org/ffmpeg-filters.html#Timeline-editing Regards, -- Nicolas George _______________________________________________ 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".
