error_blink(2)
# hack to connect MIDI devices to old versions of fluidsynth
fport = re.search("client (\d+): 'FLUID Synth",
subprocess.check_output(['aconnect', '-o']).decode())[1]
for port, client in re.findall(
" (\d+): '([^\n]*)'",
subprocess.check_output(['aconnect', '-i']).decode()):
if client == 'Midi Through': continue
subprocess.run(['aconnect', port, fport])
# initialize network link
if pxr.cfg.get('remotelink_active', 1): # allow link by default
port = pxr.cfg.get('remotelink_port', netlink.DEFAULT_PORT)
passkey = pxr.cfg.get('remotelink_passkey', netlink.DEFAULT_PASSKEY)
remote_link = netlink.Server(port, passkey)
else:
remote_link = None
# load bank
try:
load_bank(pxr.currentbank)
except patcher.PatcherError as e:
print("Error(s) in " + pxr.currentbank, file=sys.stderr)
error_blink(3)
pno = 0
shutdowntimer = 0
select_patch(pno)
# set up the patch/bank controls
def headless_synth(cfgfile):
# start the patcher
try:
pxr = patcher.Patcher(cfgfile)
except patcher.PatcherError:
# problem with config file
error_blink(2)
# hack to connect MIDI devices to old versions of fluidsynth
midiports = scan_midiports()
for client in midiports:
if client == 'FLUID Synth': continue
subprocess.run(
['aconnect', midiports[client], midiports['FLUID Synth']])
# initialize network link
if pxr.cfg.get('remotelink_active', 1): # allow link by default
port = pxr.cfg.get('remotelink_port', netlink.DEFAULT_PORT)
passkey = pxr.cfg.get('remotelink_passkey', netlink.DEFAULT_PASSKEY)
remote_link = netlink.Server(port, passkey)
else:
remote_link = None
# load bank
try:
pxr.load_bank(pxr.currentbank)
except patcher.PatcherError:
# problem with bank file
error_blink(3)
pxr.link_cc('inc', type='patch', chan=PATCH_INC_CHANNEL, cc=INC_CC)
pxr.link_cc('dec', type='patch', chan=PATCH_INC_CHANNEL, cc=DEC_CC)
pxr.link_cc('select',
type='patch',
chan=PATCH_SELECT_CHANNEL,
cc=SELECT_CC)
pno = 0
pxr.select_patch(pno)
# main loop
while True:
sleep(POLL_TIME)
changed = pxr.poll_cc()
if 'incpatch' in changed:
pno = (pno + changed['incpatch']) % pxr.patches_count()
pxr.select_patch(pno)
onboardled_blink()
if 'selectpatch' in changed:
x = int(changed['selectpatch'] * min(pxr.patches_count(), 128) /
128)
if x != pno:
pno = x
pxr.select_patch(pno)
onboardled_blink()
# check remote link for requests and process them
if remote_link and remote_link.pending():
req = remote_link.requests.pop(0)
if req.type == netlink.SEND_VERSION:
remote_link.reply(req, patcher.VERSION)
elif req.type == netlink.RECV_BANK:
try:
pxr.load_bank(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req,
patcher.write_yaml(pxr.patch_names()))
elif req.type == netlink.LIST_BANKS:
banks = list_banks()
if not banks:
remote_link.reply(req, "no banks found!",
netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(banks))
elif req.type == netlink.LOAD_BANK:
try:
rawbank = pxr.load_bank(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
info = patcher.write_yaml(pxr.currentbank, rawbank,
pxr.patch_names())
remote_link.reply(req, info)
pxr.write_config()
elif req.type == netlink.SAVE_BANK:
bfile, rawbank = patcher.read_yaml(req.body)
try:
pxr.save_bank(bfile, rawbank)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req)
pxr.write_config()
elif req.type == netlink.SELECT_PATCH:
try:
if req.body.isdecimal():
pno = int(req.body)
else:
pno = pxr.patch_index(req.body)
warn = pxr.select_patch(pno)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req, warn)
onboardled_blink()
elif req.type == netlink.LIST_SOUNDFONTS:
sf = list_soundfonts()
if not sf:
remote_link.reply(req, "no soundfonts!", netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(sf))
elif req.type == netlink.LOAD_SOUNDFONT:
if not pxr.load_soundfont(req.body):
remote_link.reply(req, "Unable to load %s" % req.body,
netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(pxr.sfpresets))
elif req.type == netlink.SELECT_SFPRESET:
pno = int(req.body)
warn = pxr.select_sfpreset(pno)
remote_link.reply(req, warn)
onboardled_blink()
elif req.type == netlink.LIST_PLUGINS:
try:
info = subprocess.check_output(['listplugins']).decode()
except:
remote_link.reply(req, 'No plugins installed')
else:
remote_link.reply(req, patcher.write_yaml(info))
elif req.type == netlink.LIST_PORTS:
ports = list(scan_midiports().keys())
remote_link.reply(req, patcher.write_yaml(ports))
elif req.type == netlink.READ_CFG:
info = patcher.write_yaml(pxr.cfgfile, pxr.read_config())
remote_link.reply(req, info)
elif req.type == netlink.SAVE_CFG:
try:
pxr.write_config(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req)
def squishpatch():
global pxr
# initialise the patcher
if len(sys.argv) > 1:
cfgfile = sys.argv[1]
else:
cfgfile = '/home/pi/SquishBox/squishboxconf.yaml'
try:
pxr = patcher.Patcher(cfgfile)
except patcher.PatcherError:
sb.lcd_write('bad config file!', 1)
sys.exit('bad config file')
# hack to connect MIDI devices to old versions of fluidsynth
midiports = scan_midiports()
for client in midiports:
if client == 'FLUID Synth':
continue
subprocess.run(['aconnect', midiports[client], midiports['FLUID Synth']])
# load bank
sb.lcd_write('loading patches', 1)
try:
pxr.load_bank(pxr.currentbank)
except patcher.PatcherError:
while True:
sb.lcd_write('bank load error!', 1)
sb.waitfortap(10)
if load_bank_menu():
break
# initialize network link
if pxr.cfg.get('remotelink_active', 0):
port = pxr.cfg.get('remotelink_port', netlink.DEFAULT_PORT)
passkey = pxr.cfg.get('remotelink_passkey', netlink.DEFAULT_PASSKEY)
remote_link = netlink.Server(port, passkey)
else:
remote_link = None
pno = 0
warn = pxr.select_patch(pno)
networks = []
fxmenu_info = (
('Reverb Size', 'synth.reverb.room-size', '%4.1f', 0.1, 0.0, 1.0),
('Reverb Damp', 'synth.reverb.damp', '%4.1f', 0.1, 0.0, 1.0),
('Rev. Width', 'synth.reverb.width', '%5.1f', 1.0, 0.0, 100.0),
('Rev. Level', 'synth.reverb.level', '%5.2f', 0.01, 0.00, 1.00),
('Chorus Voices', 'synth.chorus.nr', '%2d', 1, 0, 99),
('Chor. Level', 'synth.chorus.level', '%4.1f', 0.1, 0.0, 10.0),
('Chor. Speed', 'synth.chorus.speed', '%4.1f', 0.1, 0.1, 21.0),
('Chorus Depth', 'synth.chorus.depth', '%3.1f', 0.1, 0.3, 5.0),
('Gain', 'synth.gain', '%11.1f', 0.1, 0.0, 5.0)
)
# update LCD
while True:
sb.lcd_clear()
if pxr.sfpresets:
ptot = len(pxr.sfpresets)
p = pxr.sfpresets[pno]
sb.lcd_write(p.name, 0)
sb.lcd_write(SB.LINESTR % ('preset %03d:%03d' % (p.bank, p.prog)), 1)
else:
ptot = pxr.patches_count()
patchname = pxr.patch_name(pno)
sb.lcd_write(patchname, 0)
sb.lcd_write(SB.LINESTR % ('patch: %d/%d' % (pno + 1, ptot)), 1)
if warn:
sb.lcd_write(';'.join(warn), 1)
# input loop
while True:
if SB.ROWS == 4:
if SB.COLS == 20:
sb.lcd_write('Prev Next', 2)
sb.lcd_write('Sys----Long-----Menu', 3)
else:
sb.lcd_write('Prev Next', 2)
sb.lcd_write('Sys--Long---Menu', 3)
sb.update()
pxr.poll_cc()
# patch/preset switching
if SB.TAP in sb.buttons():
if warn:
warn = []
break
if sb.button('right') == SB.TAP:
pno = (pno + 1) % ptot
elif sb.button('left') == SB.TAP:
pno = (pno - 1) % ptot
if pxr.sfpresets:
warn = pxr.select_sfpreset(pno)
else:
warn = pxr.select_patch(pno)
break
# right button menu
if sb.button('right') == SB.HOLD:
k = sb.choose_opt(['Save Patch', 'Delete Patch', 'Load Bank', 'Save Bank', 'Load Soundfont', 'Effects..'], row=1, passlong=True)
if k == 0: # save the current patch or save preset to a patch
sb.lcd_write('Save patch:', 0)
if pxr.sfpresets:
newname = sb.char_input(pxr.sfpresets[pno].name)
if newname == '':
break
pxr.add_patch(newname)
pxr.update_patch(newname)
else:
newname = sb.char_input(patchname)
if newname == '':
break
if newname != patchname:
pxr.add_patch(newname, addlike=patchname)
pxr.update_patch(newname)
pno = pxr.patch_index(newname)
warn = pxr.select_patch(pno)
elif k == 1: # delete patch if it's not last one or a preset; ask confirm
if pxr.sfpresets or ptot < 2:
sb.lcd_write('cannot delete', 1)
sb.waitforrelease(1)
break
j = sb.choose_opt(['confirm delete?', 'cancel'], row=1)
if j == 0:
pxr.delete_patch(patchname)
pno = min(pno, (ptot - 2))
warn = pxr.select_patch(pno)
elif k == 2: # load bank
if not load_bank_menu():
break
pno = 0
warn = pxr.select_patch(pno)
pxr.write_config()
elif k == 3: # save bank, prompt for name
if pxr.sfpresets:
sb.lcd_write('cannot save', 1)
sb.waitforrelease(1)
break
sb.lcd_write('Save bank:', 0)
bankfile = sb.char_input(pxr.currentbank)
if bankfile == '':
break
try:
pxr.save_bank(bankfile)
except patcher.PatcherError:
sb.lcd_write('bank save error!', 1)
sb.waitforrelease(2)
break
pxr.write_config()
sb.lcd_write('bank saved.', 1)
sb.waitforrelease(1)
elif k == 4: # load soundfont
sf = list_soundfonts()
if not sf:
sb.lcd_write('no soundfonts!', 1)
sb.waitforrelease(2)
break
sb.lcd_write('Load Soundfont:', row=0)
s = sb.choose_opt(sf, row=1, timeout=0)
if s < 0:
break
sb.lcd_write('loading...', row=1)
if not pxr.load_soundfont(sf[s]):
sb.lcd_write('unable to load! ', 1)
sb.waitforrelease(2)
pno = 0
warn = pxr.select_sfpreset(pno)
elif k == 5: # effects menu
i=0
while True:
fxopts = []
args = []
for name, opt, fmt, inc, min, max in fxmenu_info[i:] + fxmenu_info[0:i]:
curval = pxr.fluid_get(opt)
fxopts.append('%s:%s' % (name, fmt % curval))
args.append((curval, inc, min, max, fmt, opt))
sb.lcd_write('Effects:', row=0)
j = sb.choose_opt(fxopts, row=1)
if j < 0:
break
sb.lcd_write(fxopts[j], row=0)
newval = sb.choose_val(*args[j][0:5])
if sb.choose_opt(['set?%12s' % (args[j][4] % newval)], row=1) > -1:
pxr.fluid_set(args[j][5], newval, updatebank=True, patch=pno)
i = (i + j) % len(fxmenu_info)
break
# left button menu - system-related tasks
if sb.button('left') == SB.HOLD:
sb.lcd_write('Options:', 0)
k = sb.choose_opt(['MIDI Devices', 'Wifi Settings', 'Add From USB', 'Exit', 'Power Down'], row=1, passlong=True)
if k == 0: # reconnect midi devices
ports = scan_midiports()
clients = list(ports.keys())
clients.remove('FLUID Synth')
sb.lcd_write('MIDI Devices:', 0)
if clients == []:
sb.lcd_write('no devices found', 1)
sb.waitforrelease(2)
m = sb.choose_opt(clients, row=1, timeout=0)
subprocess.run(['aconnect', ports[clients[m]], ports['FLUID Synth']])
sb.waitforrelease(0)
elif k == 1: # wifi settings
ssid = subprocess.check_output(['iwgetid', 'wlan0', '--raw']).strip().decode('ascii')
ip = re.sub(b'\s.*', b'', subprocess.check_output(['hostname', '-I'])).decode('ascii')
sb.lcd_clear()
if ssid == '':
sb.lcd_write('Not connected', 0)
else:
sb.lcd_write(ssid, 0)
sb.lcd_write(SB.LINESTR % ip, 1)
if not sb.waitfortap(10):
break
sb.lcd_write('Connections:', 0)
while True:
if remote_link:
opts = networks + ['Rescan...', 'Block RemoteLink']
else:
opts = networks + ['Rescan...', 'Allow RemoteLink']
j = sb.choose_opt(opts, 1, timeout=0)
if j < 0:
break
if j == len(opts) - 1:
if remote_link:
remote_link = None
pxr.cfg['remotelink_active'] = 0
else:
port = pxr.cfg.get('remotelink_port', netlink.DEFAULT_PORT)
passkey = pxr.cfg.get('remotelink_passkey', netlink.DEFAULT_PASSKEY)
remote_link = netlink.Server(port, passkey)
pxr.cfg['remotelink_active'] = 1
pxr.write_config()
break
if j == len(opts) - 2:
sb.lcd_write('scanning..', 1)
x = subprocess.check_output('sudo iwlist wlan0 scan'.split(), timeout=20).decode()
networks = re.findall('ESSID:"([^\n]*)"', x)
else:
sb.lcd_write('Password:'******'':
break
sb.lcd_clear()
sb.lcd_write(networks[j], 0)
sb.lcd_write('adding network..', 1)
f = open('/etc/wpa_supplicant/wpa_supplicant.conf', 'a')
f.write('network={\n ssid="%s"\n psk="%s"\n}\n' % (networks[j], newpsk))
f.close()
subprocess.run('sudo service networking restart'.split())
break
elif k == 2: # add soundfonts from a flash drive
sb.lcd_clear()
sb.lcd_write('looking for USB', row=0)
b = subprocess.check_output('sudo blkid'.split())
x = re.findall('/dev/sd[a-z]\d*', b.decode('ascii'))
if not x:
sb.lcd_write('USB not found!', row=1)
sb.waitforrelease(1)
break
sb.lcd_write('copying files..', row=1)
try:
if not os.path.exists('/mnt/usbdrv/'):
os.mkdir('/mnt/usbdrv')
for usb in x:
subprocess.run(['sudo', 'mount', usb, '/mnt/usbdrv/'], timeout=30)
for sf in glob.glob(os.path.join('/mnt/usbdrv', '**', '*.sf2'), recursive=True):
sfrel = os.path.relpath(sf, start='/mnt/usbdrv')
dest = os.path.join(pxr.sfdir, sfrel)
if not os.path.exists(os.path.dirname(dest)):
os.makedirs(os.path.dirname(dest))
subprocess.run(['sudo', 'cp', '-f', sf, dest], timeout=30)
subprocess.run(['sudo', 'umount', usb], timeout=30)
except Exception as e:
sb.lcd_write('halted - errors:', 0)
sb.lcd_write(str(e).replace('\n', ' '), 1)
while not sb.waitfortap(10):
pass
sb.lcd_write('copying files.. done!')
sb.waitforrelease(1)
elif k == 3: # exit player
sb.lcd_clear()
sb.lcd_write('Exiting', 0)
return
elif k == 4: # power down
sb.lcd_write('Shutting down...', 0)
sb.lcd_write('Wait 30s, unplug', 1)
subprocess.run('sudo shutdown -h now'.split())
break
# long-hold right button = reload bank
if sb.button('right') == SB.LONG:
sb.lcd_clear()
sb.lcd_blink('Reloading Bank ', row=0)
lastpatch = pxr.patch_name(pno)
pxr.load_bank(pxr.currentbank)
try:
pno = pxr.patch_index(lastpatch)
except patcher.PatcherError:
if pno >= pxr.patches_count():
pno = 0
warn = pxr.select_patch(pno)
sb.waitforrelease(1)
break
# long-hold left button = panic
if sb.button('left') == SB.LONG:
sb.lcd_clear()
sb.lcd_blink('Panic Restart ', row=0)
sb.waitforrelease(1)
sys.exit(1)
# check remote link for requests
if remote_link and remote_link.pending():
req = remote_link.requests.pop(0)
if req.type == netlink.SEND_VERSION:
remote_link.reply(req, patcher.VERSION)
elif req.type == netlink.RECV_BANK:
try:
pxr.load_bank(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(pxr.patch_names()))
elif req.type == netlink.LIST_BANKS:
banks = list_banks()
if not banks:
remote_link.reply(req, 'no banks found!', netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(banks))
elif req.type == netlink.LOAD_BANK:
sb.lcd_write(req.body, 0)
sb.lcd_write('loading patches', 1)
try:
if req.body == '':
rawbank = pxr.load_bank()
else:
rawbank = pxr.load_bank(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
sb.lcd_write('bank load error!', 1)
sb.waitforrelease(2)
else:
info = patcher.write_yaml(pxr.currentbank, rawbank, pxr.patch_names())
remote_link.reply(req, info)
pxr.write_config()
elif req.type == netlink.SAVE_BANK:
bfile, rawbank = patcher.read_yaml(req.body)
try:
pxr.save_bank(bfile, rawbank)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req)
pxr.write_config()
elif req.type == netlink.SELECT_PATCH:
try:
if req.body.isdecimal():
pno = int(req.body)
else:
pno = pxr.patch_index(req.body)
warn = pxr.select_patch(pno)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req, warn)
break
elif req.type == netlink.LIST_SOUNDFONTS:
sf = list_soundfonts()
if not sf:
remote_link.reply(req, 'no soundfonts!', netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(sf))
elif req.type == netlink.LOAD_SOUNDFONT:
sb.lcd_write(req.body, 0)
sb.lcd_write('loading...', 1)
if not pxr.load_soundfont(req.body):
sb.lcd_write('unable to load!', 1)
remote_link.reply(req, 'Unable to load %s' % req.body, netlink.REQ_ERROR)
else:
remote_link.reply(req, patcher.write_yaml(pxr.sfpresets))
elif req.type == netlink.SELECT_SFPRESET:
pno = int(req.body)
warn = pxr.select_sfpreset(pno)
remote_link.reply(req, warn)
break
elif req.type == netlink.LIST_PLUGINS:
try:
info = subprocess.check_output(['listplugins']).decode()
except:
remote_link.reply(req, 'No plugins installed')
else:
remote_link.reply(req, patcher.write_yaml(info))
elif req.type == netlink.LIST_PORTS:
ports = list(scan_midiports().keys())
remote_link.reply(req, patcher.write_yaml(ports))
elif req.type == netlink.READ_CFG:
info = patcher.write_yaml(pxr.cfgfile, pxr.read_config())
remote_link.reply(req, info)
elif req.type == netlink.SAVE_CFG:
try:
pxr.write_config(req.body)
except patcher.PatcherError as e:
remote_link.reply(req, str(e), netlink.REQ_ERROR)
else:
remote_link.reply(req)