NPAPI based browser plugin.

The idea is to control scsynth (internal server) via javascript or even a language compiling to javascript, such as ocaml. existing and emerging web technologies may provide interesting applications for lightweight algorithmic sound generation.

We’re currently working on a port to the cross-platform Qt browser plugin API.

Issues

• callbacks currently the JS interpreter is not thread safe, incoming OSC packets must be polled from a timer
• security ugens accessing the system (disk) should be disabled in a browser plugin
• urls /b_allocRead, /b_read and /d_load could be changed to load from urls instead of the disk (use NPAPI)
• packaging
  • plugins and other resources should be private to the browser plugin
  • cross platform/browser installer anyone?

Scripting interface

• params
  • numBuffers : 1024
  • maxNodes : 1024
  • maxGraphDefs : 1024
  • maxWireBufs : 64
  • numAudioBusChannels : 128
  • numControlBusChannels : 4096
  • numInputBusChannels : 8
  • numOutputBusChannels : 8
  • bufLength : 64
  • realTimeMemorySize : 8192
  • numSharedControls : 0
  • preferredSampleRate : 0
  • preferredHardwareBufferFrameSize : 0
  • numRGens : 64
  • loadGraphDefs : true | false
  • dumpOSC : 0 | 1 | 2 | 3
• attributes
  • length : get number of shared controls
• methods
  • sendMsg(command ... args) : null : send OSC message
  • sendBundle(timetag ... messages) : null : send OSC bundle
  • nextMsg() : null | Array : get next response from server
  • time() : Number : get current OSC time
  • [](index) : null | Number : get shared control
  • []=(index, value) : null : set shared control

Documentation

• NPAPI
• prototype javascript library
• prototype tutorial
• jQuery javascript library

Source code

• darcs

Links to other engines

• Jsyn by phil burk
• Pure Data plugin by mtg/barcelona
• contact me if you know more