scripts/lilysong.py

   1 #!@TARGET_PYTHON@
   2
   3 # Copyright (C) 2006, 2007 Brailcom, o.p.s.
   4 #
   5 # Author: Milan Zamazal <pdm@brailcom.org>
   6 #
   7 # COPYRIGHT NOTICE
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful, but
  15 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17 # for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, write to the Free Software
  21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  22
  23
  24 import codecs
  25 import optparse
  26 import os
  27 import popen2
  28 import sys
  29 import tempfile
  30
  31 """
  32 @relocate-preamble@
  33 """
  34
  35
  36 FESTIVAL_COMMAND = 'festival --pipe'
  37 VOICE_CODINGS = {'voice_czech_ph': 'iso-8859-2'}
  38
  39 _USAGE = """lilysong [-p PLAY-PROGRAM] FILE.xml [LANGUAGE-CODE-OR-VOICE [SPEEDUP]]
  40        lilysong FILE.ly [LANGUAGE-CODE-OR-VOICE]
  41        lilysong --list-voices
  42        lilysong --list-languages
  43 """
  44
  45 def usage ():
  46     print 'Usage:', _USAGE
  47     sys.exit (2)
  48
  49 def process_options (args):
  50     parser = optparse.OptionParser (usage=_USAGE, version="@TOPLEVEL_VERSION@")
  51     parser.add_option ('', '--list-voices', action='store_true', dest='list_voices',
  52                        help="list available Festival voices")
  53     parser.add_option ('', '--list-languages', action='store_true', dest='list_languages',
  54                        help="list available Festival languages")
  55     parser.add_option ('-p', '--play-program', metavar='PROGRAM',
  56                        action='store', type='string', dest='play_program',
  57                        help="use PROGRAM to play song immediately")
  58     options, args = parser.parse_args (args)
  59     return options, args
  60
  61 def call_festival (scheme_code):
  62     in_, out = popen2.popen2 (FESTIVAL_COMMAND)
  63     out.write (scheme_code)
  64     out.close ()
  65     answer = ''
  66     while True:
  67         process_output = in_.read ()
  68         if not process_output:
  69             break
  70         answer = answer + process_output
  71     return answer
  72
  73 def select_voice (language_or_voice):
  74     if language_or_voice[:6] == 'voice_':
  75         voice = language_or_voice
  76     else:
  77         voice = call_festival ('''
  78 (let ((candidates '()))
  79   (mapcar (lambda (v)
  80             (if (eq (cadr (assoc 'language (cadr (voice.description v)))) '%s)
  81                 (set! candidates (cons v candidates))))
  82           (append (voice.list) (mapcar car Voice_descriptions)))
  83   (if candidates
  84       (format t "voice_%%s" (car candidates))
  85       (format t "nil")))
  86 ''' % (language_or_voice,))
  87         if voice == 'nil':
  88             voice = None
  89     return voice
  90
  91 def list_voices ():
  92     print call_festival ('''
  93 (let ((voices (voice.list))
  94       (print-voice (lambda (v) (format t "voice_%s\n" v))))
  95   (mapcar print-voice voices)
  96   (mapcar (lambda (v) (if (not (member v voices)) (print-voice v)))
  97           (mapcar car Voice_descriptions)))
  98 ''')
  99
 100 def list_languages ():
 101     print call_festival ('''
 102 (let ((languages '()))
 103   (let ((voices (voice.list))
 104         (print-language (lambda (v)
 105                           (let ((language (cadr (assoc 'language (cadr (voice.description v))))))
 106                             (if (and language (not (member language languages)))
 107                                 (begin
 108                                   (set! languages (cons language languages))
 109                                   (print language)))))))
 110     (mapcar print-language voices)
 111     (mapcar (lambda (v) (if (not (member v voices)) (print-language v)))
 112             (mapcar car Voice_descriptions))))
 113 ''')
 114
 115 def process_xml_file (file_name, voice, speedup, play_program):
 116     if speedup == 1:
 117         speedup = None
 118     coding = (VOICE_CODINGS.get (voice) or 'iso-8859-1')
 119     _, xml_temp_file = tempfile.mkstemp ('.xml')
 120     try:
 121         # recode the XML file
 122         recodep = (coding != 'utf-8')
 123         if recodep:
 124             decode = codecs.getdecoder ('utf-8')
 125             encode = codecs.getencoder (coding)
 126         input = open (file_name)
 127         output = open (xml_temp_file, 'w')
 128         while True:
 129             data = input.read ()
 130             if not data:
 131                 break
 132             if recodep:
 133                 data = encode (decode (data)[0])[0]
 134             output.write (data)
 135         output.close ()
 136         # synthesize
 137         wav_file = file_name[:-3] + 'wav'
 138         if speedup:
 139             _, wav_temp_file = tempfile.mkstemp ('.wav')
 140         else:
 141             wav_temp_file = wav_file
 142         try:
 143             print "text2wave -eval '(%s)' -mode singing '%s' -o '%s'" % (voice, xml_temp_file, wav_temp_file,)
 144             result = os.system ("text2wave -eval '(%s)' -mode singing '%s' -o '%s'" %
 145                                 (voice, xml_temp_file, wav_temp_file,))
 146             if result:
 147                 sys.stdout.write ("Festival processing failed.\n")
 148                 return
 149             if speedup:
 150                 result = os.system ("sox '%s' '%s' speed '%f'" % (wav_temp_file, wav_file, speedup,))
 151                 if result:
 152                     sys.stdout.write ("Festival processing failed.\n")
 153                     return
 154         finally:
 155             if speedup:
 156                 try:
 157                     os.delete (wav_temp_file)
 158                 except:
 159                     pass
 160         sys.stdout.write ("%s created.\n" % (wav_file,))
 161         # play
 162         if play_program:
 163             os.system ("%s '%s' >/dev/null" % (play_program, wav_file,))
 164     finally:
 165         try:
 166             os.delete (xml_temp_file)
 167         except:
 168             pass
 169
 170 def process_ly_file (file_name, voice):
 171     result = os.system ("lilypond '%s'" % (file_name,))
 172     if result:
 173         return
 174     xml_file = None
 175     for f in os.listdir (os.path.dirname (file_name) or '.'):
 176         if (f[-4:] == '.xml' and
 177             (not xml_file or os.stat.st_mtime (f) > os.stat.st_mtime (xml_file))):
 178             xml_file = f
 179     if xml_file:
 180         process_xml_file (xml_file, voice, None, None)
 181     else:
 182         sys.stderr.write ("No XML file found\n")
 183
 184 def go ():
 185     options, args = process_options (sys.argv[1:])
 186     if options.list_voices:
 187         list_voices ()
 188     elif options.list_languages:
 189         list_languages ()
 190     else:
 191         arglen = len (args)
 192         if arglen < 1:
 193             usage ()
 194         file_name = args[0]
 195         if arglen > 1:
 196             language_or_voice = args[1]
 197             voice = select_voice (language_or_voice)
 198         else:
 199             voice = None
 200         if file_name[-3:] == '.ly':
 201             if arglen > 2:
 202                 usage ()
 203             process_ly_file (file_name, voice)
 204         else:
 205             if arglen > 3:
 206                 usage ()
 207             elif arglen == 3:
 208                 try:
 209                     speedup = float (args[2])
 210                 except ValueError:
 211                     usage ()
 212             else:
 213                 speedup = None
 214             process_xml_file (file_name, voice, speedup, options.play_program)
 215
 216 if __name__ == '__main__':
 217     go ()