On Sunday, 1 May 2022 19:59:46 BST David Jarvie wrote: > On Sunday, 1 May 2022 00:23:30 BST Harald Sitter wrote: > > Unfortunately VolumeFaderEffect is presently not supported by VLC > > Is it possible to determine programmatically whether the current backend > supports VolumeFaderEffect? I looked at the output from > BackendCapabilities::availableAudioEffects(), and for GStreamer it returns > names and descriptions: > > "equalizer-10bands", desc: "Direct Form 10 band IIR equalizer" > "KEqualizer", desc: "Compatibility effect. Do not use in new software!" > "audiopanorama", desc: "Positions audio streams in the stereo panorama" > "audioamplify", desc: "Amplifies an audio stream by a given factor" > "audiodynamic", desc: "Compressor and Expander" > > None of these is (to me) obviously related to VolumeFaderEffect. For VLC, > only the first one is returned, "equalizer-10bands". I just discovered that VolumeFaderEffect::isValid() tells whether the backend supports VolumeFaderEffect. So please ignore my last message. Thanks, -- David Jarvie. KDE developer, KAlarm author.