usb_api_example.py

   1 from calfbox import cbox
   2
   3 def cmd_dumper(cmd, fb, args):
   4     print ("%s(%s)" % (cmd, ",".join(list(map(repr,args)))))
   5
   6 cbox.init_engine()
   7
   8 cbox.Config.add_section("drumpattern:pat1", """
   9 title=Straight - Verse
  10 beats=4
  11 track1=bd
  12 track2=sd
  13 track3=hh
  14 track4=ho
  15 bd_note=c1
  16 sd_note=d1
  17 hh_note=f#1
  18 ho_note=a#1
  19 bd_trigger=9... .... 9.6. ....
  20 sd_trigger=.... 9..5 .2.. 9...
  21 hh_trigger=9353 7353 7353 73.3
  22 ho_trigger=.... .... .... ..3.
  23 """)
  24
  25 cbox.Config.set("io", "use_usb", 1)
  26 cbox.start_audio(cmd_dumper)
  27
  28 global Document
  29 Document = cbox.Document
  30
  31 status = cbox.JackIO.status()
  32 client_name = status.client_name
  33 print ("Client type: %s" % status.client_type)
  34 print ("Client name: %s" % client_name)
  35 print ("Audio inputs: %d, outputs: %d" % (status.audio_inputs, status.audio_outputs))
  36 print ("Period: %d frames" % (status.buffer_size))
  37 print ("Sample rate: %d frames/sec" % (status.sample_rate))
  38 print ("Output resolution: %d bits/sample" % (status.output_resolution))
  39 print ("MIDI input devices: %s" % (status.midi_input))
  40 #cbox.JackIO.create_midi_output('drums', 'system:midi_playback_1')
  41
  42 scene = Document.get_scene()
  43 scene.clear()
  44 instrument = scene.add_new_instrument_layer("test_sampler", "sampler").get_instrument()
  45 pgm_no = instrument.engine.get_unused_program()
  46 pgm = instrument.engine.load_patch_from_file(pgm_no, 'synthbass.sfz', 'SynthBass')
  47 instrument.engine.set_patch(1, pgm_no)
  48 instrument.engine.set_patch(10, pgm_no)
  49
  50 song = Document.get_song()
  51 track = song.add_track()
  52 pattern = song.load_drum_pattern("pat1")
  53 track.add_clip(0, 0, pattern.status().loop_end, pattern)
  54 song.set_loop(0, pattern.status().loop_end)
  55 song.update_playback()
  56 cbox.Transport.play()
  57
  58 print("Ready!")
  59
  60 while True:
  61     cbox.call_on_idle(cmd_dumper)