/usr/bin/lilysong is in lilypond 2.18.2-4.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# Copyright (c) 2006--2012 Brailcom, o.p.s.
#
# Author: Milan Zamazal <pdm@brailcom.org>
#
# This file is part of LilyPond, the GNU music typesetter.
#
# LilyPond is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# LilyPond is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
import codecs
import optparse
import os
import popen2
import sys
import tempfile
"""
This generic code used for all python scripts.
The quotes are to ensure that the source .py file can still be
run as a python script, but does not include any sys.path handling.
Otherwise, the lilypond-book calls inside the build
might modify installed .pyc files.
"""
for d in ['/usr/share/lilypond/2.18.2',
'/usr/lib/x86_64-linux-gnu/lilypond/2.18.2']:
sys.path.insert (0, os.path.join (d, 'python'))
# dynamic relocation, for GUB binaries.
bindir = os.path.abspath (os.path.dirname (sys.argv[0]))
for p in ['share', 'lib']:
datadir = os.path.abspath (bindir + '/../%s/lilypond/current/python/' % p)
sys.path.insert (0, datadir)
"""
"""
FESTIVAL_COMMAND = 'festival --pipe'
VOICE_CODINGS = {'voice_czech_ph': 'iso-8859-2'}
_USAGE = """lilysong [-p PLAY-PROGRAM] FILE.xml [LANGUAGE-CODE-OR-VOICE [SPEEDUP]]
lilysong FILE.ly [LANGUAGE-CODE-OR-VOICE]
lilysong --list-voices
lilysong --list-languages
"""
def usage ():
print 'Usage:', _USAGE
sys.exit (2)
def process_options (args):
parser = optparse.OptionParser (usage=_USAGE, version="2.18.2")
parser.add_option ('', '--list-voices', action='store_true', dest='list_voices',
help="list available Festival voices")
parser.add_option ('', '--list-languages', action='store_true', dest='list_languages',
help="list available Festival languages")
parser.add_option ('-p', '--play-program', metavar='PROGRAM',
action='store', type='string', dest='play_program',
help="use PROGRAM to play song immediately")
options, args = parser.parse_args (args)
return options, args
def call_festival (scheme_code):
in_, out = popen2.popen2 (FESTIVAL_COMMAND)
out.write (scheme_code)
out.close ()
answer = ''
while True:
process_output = in_.read ()
if not process_output:
break
answer = answer + process_output
return answer
def select_voice (language_or_voice):
if language_or_voice[:6] == 'voice_':
voice = language_or_voice
else:
voice = call_festival ('''
(let ((candidates '()))
(mapcar (lambda (v)
(if (eq (cadr (assoc 'language (cadr (voice.description v)))) '%s)
(set! candidates (cons v candidates))))
(append (voice.list) (mapcar car Voice_descriptions)))
(if candidates
(format t "voice_%%s" (car candidates))
(format t "nil")))
''' % (language_or_voice,))
if voice == 'nil':
voice = None
return voice
def list_voices ():
print call_festival ('''
(let ((voices (voice.list))
(print-voice (lambda (v) (format t "voice_%s\n" v))))
(mapcar print-voice voices)
(mapcar (lambda (v) (if (not (member v voices)) (print-voice v)))
(mapcar car Voice_descriptions)))
''')
def list_languages ():
print call_festival ('''
(let ((languages '()))
(let ((voices (voice.list))
(print-language (lambda (v)
(let ((language (cadr (assoc 'language (cadr (voice.description v))))))
(if (and language (not (member language languages)))
(begin
(set! languages (cons language languages))
(print language)))))))
(mapcar print-language voices)
(mapcar (lambda (v) (if (not (member v voices)) (print-language v)))
(mapcar car Voice_descriptions))))
''')
def process_xml_file (file_name, voice, speedup, play_program):
if speedup == 1:
speedup = None
coding = (VOICE_CODINGS.get (voice) or 'iso-8859-1')
_, xml_temp_file = tempfile.mkstemp ('.xml')
try:
# recode the XML file
recodep = (coding != 'utf-8')
if recodep:
decode = codecs.getdecoder ('utf-8')
encode = codecs.getencoder (coding)
input = open (file_name)
output = open (xml_temp_file, 'w')
while True:
data = input.read ()
if not data:
break
if recodep:
data = encode (decode (data)[0])[0]
output.write (data)
output.close ()
# synthesize
wav_file = file_name[:-3] + 'wav'
if speedup:
_, wav_temp_file = tempfile.mkstemp ('.wav')
else:
wav_temp_file = wav_file
try:
print "text2wave -eval '(%s)' -mode singing '%s' -o '%s'" % (voice, xml_temp_file, wav_temp_file,)
result = os.system ("text2wave -eval '(%s)' -mode singing '%s' -o '%s'" %
(voice, xml_temp_file, wav_temp_file,))
if result:
sys.stdout.write ("Festival processing failed.\n")
return
if speedup:
result = os.system ("sox '%s' '%s' speed '%f'" % (wav_temp_file, wav_file, speedup,))
if result:
sys.stdout.write ("Festival processing failed.\n")
return
finally:
if speedup:
try:
os.delete (wav_temp_file)
except:
pass
sys.stdout.write ("%s created.\n" % (wav_file,))
# play
if play_program:
os.system ("%s '%s' >/dev/null" % (play_program, wav_file,))
finally:
try:
os.delete (xml_temp_file)
except:
pass
def process_ly_file (file_name, voice):
result = os.system ("lilypond '%s'" % (file_name,))
if result:
return
xml_file = None
for f in os.listdir (os.path.dirname (file_name) or '.'):
if (f[-4:] == '.xml' and
(not xml_file or os.stat.st_mtime (f) > os.stat.st_mtime (xml_file))):
xml_file = f
if xml_file:
process_xml_file (xml_file, voice, None, None)
else:
sys.stderr.write ("No XML file found\n")
def go ():
options, args = process_options (sys.argv[1:])
if options.list_voices:
list_voices ()
elif options.list_languages:
list_languages ()
else:
arglen = len (args)
if arglen < 1:
usage ()
file_name = args[0]
if arglen > 1:
language_or_voice = args[1]
voice = select_voice (language_or_voice)
else:
voice = None
if file_name[-3:] == '.ly':
if arglen > 2:
usage ()
process_ly_file (file_name, voice)
else:
if arglen > 3:
usage ()
elif arglen == 3:
try:
speedup = float (args[2])
except ValueError:
usage ()
else:
speedup = None
process_xml_file (file_name, voice, speedup, options.play_program)
if __name__ == '__main__':
go ()
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