Yes, I understand your explanation. For the moment, I just forward jack received CCs to the lib. I will try to make some mokcup before to update the UI. Cheers, Ben
Le 16/01/2020 à 23:34, Stefan Westerfeld a écrit : > Hi! > > Am 12.01.20 um 18:59 schrieb Benoît Rouits: >> I will update QLiquidSFZ then, to reflect the additions you made. >> Many thanks for this cool library. > > Right. The most interesting (difficult) addition from the UI point of > view is probably > >>> - provide list of CCs supported by .sfz file (Synth::list_ccs) > > The thing is that CCs can be used to control aspects of the sound, such > as panning or the number of layers used for the sound (i.e. some layers > will be turned on/off by the cc). From an UI point of view it would be > ideal if each CC was displayed as one slider (or knob), so you would > call list_ccs and create a number of sliders/knobs, one for each CC. The > default value provided by liquidsfz would be the initial position of the > slider/knob. If the user turns the slider/knob, then qliquidsfz would > generate CC events for it. > > Its a bit tricky because obviously Synth::add_event_cc() cannot be > executed at the same time Synth::process() is running in the JACK > thread. One way to do this is using some kind of queue for the CC > events, so that the JACK process callback can execute them together with > the other midi events before process(). > > Also in a perfect world if CC events were be received by MIDI, the UI > would update its state. So using an external midi controller would move > the Qt slider/knob widget. Again, this needs to be implemented carefully > in order to be thread safe. > > The CC widgets really cannot be done properly by the text UI, this is > why I only display a list there. If you are looking for a program for > inspiration how a UI could look, I'd recommend sforzando for windows. > This can at least give you an idea of the direction to go. I personally > obtained an old version (win_sforzando_v1.822.exe) which runs in wine. > You'll see in the controls tab what I mean if you load a sfz with CCs. > > Cu... Stefan > _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org https://lists.linuxaudio.org/listinfo/linux-audio-dev