Em 27/05/2015, à(s) 16:42, Christopher Arndt <chris(a)chrisarndt.de> escreveu: Is there a way to have the value range of a control input port of a LV2 plugin be in one range (e.g. 0.0f..1.0f or 0-127) and have the LV2 host display the values scaled or mapped to a different range (e.g. 20-20,000 Hz or 2 - 2000 ms)? I know about lv2:scalePoints and the lv2:enumeration property to handle list of discrete values and the units:unit properties to set the value unit, but how do I map the actual values of a large continuous range? Is there a way to define a transfer function? Or does that need to happen inside the plug-in code? And what about more advanced parameter display, e.g. a wet/dry setting, which I want to display as going from 100:00 through 50:50 to 0:100, but the actual parameter value is just 0.0..1.0 (or -1.0..+1.0)? Background: I'm trying to improve the JX10.ttl from the mda.lv2 collection [1], so that the parameter display in the LV2 host generated plug-in UI is more useful and intuitive, i.e. instead of e.g. the slider for OSC Tuning being going from 0.0 .. 1.0, I want it to be displayed as -24 .. +24 cents. All control input ports of the plugin are defined as taking a value 0.0f..1.0f. [1] http://svn.drobilla.net/lad/trunk/plugins/mda.lv2/ Chris _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev(a)lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev

Is there a way to have the value range of a control input port of a LV2 plugin be in one range (e.g. 0.0f..1.0f or 0-127) and have the LV2 host display the values scaled or mapped to a different range (e.g. 20-20,000 Hz or 2 - 2000 ms)? I know about lv2:scalePoints and the lv2:enumeration property to handle list of discrete values and the units:unit properties to set the value unit, but how do I map the actual values of a large continuous range? Is there a way to define a transfer function? Or does that need to happen inside the plug-in code? And what about more advanced parameter display, e.g. a wet/dry setting, which I want to display as going from 100:00 through 50:50 to 0:100, but the actual parameter value is just 0.0..1.0 (or -1.0..+1.0)? Background: I'm trying to improve the JX10.ttl from the mda.lv2 collection [1], so that the parameter display in the LV2 host generated plug-in UI is more useful and intuitive, i.e. instead of e.g. the slider for OSC Tuning being going from 0.0 .. 1.0, I want it to be displayed as -24 .. +24 cents. All control input ports of the plugin are defined as taking a value 0.0f..1.0f.