def test_safe_bytes(self):
tests = [
("", b""),
("foo", b"foo"),
(b"", b""),
(b"foo", b"foo"),
(b"fo\x99", b"fo\x99"),
]
self.assertIsNone(gf.safe_bytes(None))
for test in tests:
self.assertEqual(gf.safe_bytes(test[0]), test[1])
def test_safe_bytes(self):
tests = [
("", b""),
("foo", b"foo"),
(b"", b""),
(b"foo", b"foo"),
(b"fo\x99", b"fo\x99"),
]
self.assertIsNone(gf.safe_bytes(None))
for test in tests:
self.assertEqual(gf.safe_bytes(test[0]), test[1])
def main():
"""
Run ``aeneas.cew``, reading input text from file and writing audio and interval data to file.
"""
# make sure we have enough parameters
if len(sys.argv) < 6:
print("You must pass five arguments: QUIT_AFTER BACKWARDS TEXT_FILE_PATH AUDIO_FILE_PATH DATA_FILE_PATH")
return 1
# read parameters
c_quit_after = float(sys.argv[1]) # NOTE: cew needs float, not TimeValue
c_backwards = int(sys.argv[2])
text_file_path = sys.argv[3]
audio_file_path = sys.argv[4]
data_file_path = sys.argv[5]
# read (voice_code, text) from file
s_text = []
with io.open(text_file_path, "r", encoding="utf-8") as text:
for line in text.readlines():
# NOTE: not using strip() to avoid removing trailing blank characters
line = line.replace(u"\n", u"").replace(u"\r", u"")
idx = line.find(" ")
if idx > 0:
f_voice_code = line[:idx]
f_text = line[idx+1:]
#print("%s => '%s' and '%s'" % (line, f_voice_code, f_text))
s_text.append((f_voice_code, f_text))
# convert to bytes/unicode as required by subprocess
c_text = []
if gf.PY2:
for f_voice_code, f_text in s_text:
c_text.append((gf.safe_bytes(f_voice_code), gf.safe_bytes(f_text)))
else:
for f_voice_code, f_text in s_text:
c_text.append((gf.safe_unicode(f_voice_code), gf.safe_unicode(f_text)))
try:
import aeneas.cew.cew
sr, sf, intervals = aeneas.cew.cew.synthesize_multiple(
audio_file_path,
c_quit_after,
c_backwards,
c_text
)
with io.open(data_file_path, "w", encoding="utf-8") as data:
data.write(u"%d\n" % (sr))
data.write(u"%d\n" % (sf))
data.write(u"\n".join([u"%.3f %.3f" % (i[0], i[1]) for i in intervals]))
except Exception as exc:
print(u"Unexpected error: %s" % str(exc))
def main():
"""
Run ``aeneas.cew``, reading input text from file and writing audio and interval data to file.
"""
# make sure we have enough parameters
if len(sys.argv) < 6:
print(
"You must pass five arguments: QUIT_AFTER BACKWARDS TEXT_FILE_PATH AUDIO_FILE_PATH DATA_FILE_PATH"
)
return 1
# read parameters
c_quit_after = float(sys.argv[1]) # NOTE: cew needs float, not TimeValue
c_backwards = int(sys.argv[2])
text_file_path = sys.argv[3]
audio_file_path = sys.argv[4]
data_file_path = sys.argv[5]
# read (voice_code, text) from file
s_text = []
with io.open(text_file_path, "r", encoding="utf-8") as text:
for line in text.readlines():
# NOTE: not using strip() to avoid removing trailing blank characters
line = line.replace(u"\n", u"").replace(u"\r", u"")
idx = line.find(" ")
if idx > 0:
f_voice_code = line[:idx]
f_text = line[idx + 1:]
#print("%s => '%s' and '%s'" % (line, f_voice_code, f_text))
s_text.append((f_voice_code, f_text))
# convert to bytes/unicode as required by subprocess
c_text = []
if gf.PY2:
for f_voice_code, f_text in s_text:
c_text.append((gf.safe_bytes(f_voice_code), gf.safe_bytes(f_text)))
else:
for f_voice_code, f_text in s_text:
c_text.append(
(gf.safe_unicode(f_voice_code), gf.safe_unicode(f_text)))
try:
import aeneas.cew.cew
sr, sf, intervals = aeneas.cew.cew.synthesize_multiple(
audio_file_path, c_quit_after, c_backwards, c_text)
with io.open(data_file_path, "w", encoding="utf-8") as data:
data.write(u"%d\n" % (sr))
data.write(u"%d\n" % (sf))
data.write(u"\n".join(
[u"%.3f %.3f" % (i[0], i[1]) for i in intervals]))
except Exception as exc:
print(u"Unexpected error: %s" % str(exc))
def parse(self, input_text, syncmap):
from lxml import etree
# namespaces
xsi = "http://www.w3.org/2001/XMLSchema-instance"
ns_map = {"xsi": xsi}
# get root
root = etree.fromstring(gf.safe_bytes(input_text))
# get time slots
time_slots = dict()
for ts in root.iter("TIME_SLOT"):
time_slots[ts.get("TIME_SLOT_ID")] = gf.time_from_ssmmm(ts.get("TIME_VALUE")) / 1000
# parse annotations
for alignable in root.iter("ALIGNABLE_ANNOTATION"):
identifier = gf.safe_unicode(alignable.get("ANNOTATION_ID"))
begin = time_slots[alignable.get("TIME_SLOT_REF1")]
end = time_slots[alignable.get("TIME_SLOT_REF2")]
lines = []
for value in alignable.iter("ANNOTATION_VALUE"):
lines.append(gf.safe_unicode(value.text))
self._add_fragment(
syncmap=syncmap,
identifier=identifier,
lines=lines,
begin=begin,
end=end
)
def check_config_xml(self, contents):
"""
Check whether the given XML config file contents
is well-formed and it has all the required parameters.
:param string contents: the XML config file contents or XML config string
:param bool is_config_string: if ``True``, contents is a config string
:rtype: :class:`~aeneas.validator.ValidatorResult`
"""
self.log(u"Checking contents XML config file")
self.result = ValidatorResult()
if self._are_safety_checks_disabled(u"check_config_xml"):
return self.result
contents = gf.safe_bytes(contents)
self.log(u"Checking that contents is well formed")
self.check_raw_string(contents, is_bstring=True)
if not self.result.passed:
return self.result
self.log(u"Checking required parameters for job")
job_parameters = gf.config_xml_to_dict(contents, self.result, parse_job=True)
self._check_required_parameters(self.XML_JOB_REQUIRED_PARAMETERS, job_parameters)
if not self.result.passed:
return self.result
self.log(u"Checking required parameters for task")
tasks_parameters = gf.config_xml_to_dict(contents, self.result, parse_job=False)
for parameters in tasks_parameters:
self.log([u"Checking required parameters for task: '%s'", parameters])
self._check_required_parameters(self.XML_TASK_REQUIRED_PARAMETERS, parameters)
if not self.result.passed:
return self.result
return self.result
def parse(self, input_text, syncmap):
from lxml import etree
# namespaces
xsi = "http://www.w3.org/2001/XMLSchema-instance"
ns_map = {"xsi": xsi}
# get root
root = etree.fromstring(gf.safe_bytes(input_text))
# get time slots
time_slots = dict()
for ts in root.iter("TIME_SLOT"):
time_slots[ts.get("TIME_SLOT_ID")] = gf.time_from_ssmmm(
ts.get("TIME_VALUE")) / 1000
# parse annotations
for alignable in root.iter("ALIGNABLE_ANNOTATION"):
identifier = gf.safe_unicode(alignable.get("ANNOTATION_ID"))
begin = time_slots[alignable.get("TIME_SLOT_REF1")]
end = time_slots[alignable.get("TIME_SLOT_REF2")]
lines = []
for value in alignable.iter("ANNOTATION_VALUE"):
lines.append(gf.safe_unicode(value.text))
self._add_fragment(syncmap=syncmap,
identifier=identifier,
lines=lines,
begin=begin,
end=end)
def parse(self, input_text, syncmap):
"""
Read from SMIL file.
Limitations:
1. parses only ``<par>`` elements, in order
2. timings must have ``hh:mm:ss.mmm`` or ``ss.mmm`` format (autodetected)
3. both ``clipBegin`` and ``clipEnd`` attributes of ``<audio>`` must be populated
"""
from lxml import etree
smil_ns = "{http://www.w3.org/ns/SMIL}"
root = etree.fromstring(gf.safe_bytes(input_text))
for par in root.iter(smil_ns + "par"):
for child in par:
if child.tag == (smil_ns + "text"):
identifier = gf.safe_unicode(gf.split_url(child.get("src"))[1])
elif child.tag == (smil_ns + "audio"):
begin_text = child.get("clipBegin")
if ":" in begin_text:
begin = gf.time_from_hhmmssmmm(begin_text)
else:
begin = gf.time_from_ssmmm(begin_text)
end_text = child.get("clipEnd")
if ":" in end_text:
end = gf.time_from_hhmmssmmm(end_text)
else:
end = gf.time_from_ssmmm(end_text)
# TODO read text from additional text_file?
self._add_fragment(
syncmap=syncmap,
identifier=identifier,
lines=[u""],
begin=begin,
end=end
)
def _synthesize_single_c_extension(self, text, voice_code, output_file_path):
"""
Synthesize a single text fragment, using the cew extension.
Return the duration of the synthesized text, in seconds.
:rtype: (bool, (:class:`~aeneas.timevalue.TimeValue`, ))
"""
self.log(u"Synthesizing using C extension...")
end = None
if self.rconf[RuntimeConfiguration.CEW_SUBPROCESS_ENABLED]:
self.log(u"Using cewsubprocess to call aeneas.cew")
try:
self.log(u"Importing aeneas.cewsubprocess...")
from aeneas.cewsubprocess import CEWSubprocess
self.log(u"Importing aeneas.cewsubprocess... done")
self.log(u"Calling aeneas.cewsubprocess...")
cewsub = CEWSubprocess(rconf=self.rconf, logger=self.logger)
end = cewsub.synthesize_single(output_file_path, voice_code, text)
self.log(u"Calling aeneas.cewsubprocess... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while running cewsubprocess", exc, False, None)
# NOTE not critical, try calling aeneas.cew directly
#return (False, None)
if end is None:
self.log(u"Preparing c_text...")
if gf.PY2:
# Python 2 => pass byte strings
c_text = gf.safe_bytes(text)
else:
# Python 3 => pass Unicode strings
c_text = gf.safe_unicode(text)
self.log(u"Preparing c_text... done")
self.log(u"Calling aeneas.cew directly")
try:
self.log(u"Importing aeneas.cew...")
import aeneas.cew.cew
self.log(u"Importing aeneas.cew... done")
self.log(u"Calling aeneas.cew...")
sr, begin, end = aeneas.cew.cew.synthesize_single(
output_file_path,
voice_code,
c_text
)
end = TimeValue(end)
self.log(u"Calling aeneas.cew... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while running cew", exc, False, None)
return (False, None)
self.log(u"Synthesizing using C extension... done")
return (True, (end, ))
def parse(self, input_text, syncmap):
from lxml import etree
root = etree.fromstring(gf.safe_bytes(input_text))
for frag in root:
for child in frag:
if child.tag == "identifier":
identifier = gf.safe_unicode(child.text)
elif child.tag == "start":
begin = gf.time_from_ssmmm(child.text)
elif child.tag == "end":
end = gf.time_from_ssmmm(child.text)
# TODO read text from additional text_file?
self._add_fragment(syncmap=syncmap,
identifier=identifier,
lines=[u""],
begin=begin,
end=end)
def parse(self, input_text, syncmap):
from lxml import etree
ttml_ns = "{http://www.w3.org/ns/ttml}"
xml_ns = "{http://www.w3.org/XML/1998/namespace}"
root = etree.fromstring(gf.safe_bytes(input_text))
language = root.get(xml_ns + "lang")
for elem in root.iter(ttml_ns + "p"):
identifier = gf.safe_unicode(elem.get(xml_ns + "id"))
begin = gf.time_from_ttml(elem.get("begin"))
end = gf.time_from_ttml(elem.get("end"))
fragment_lines = self._get_lines_from_node_text(elem)
self._add_fragment(syncmap=syncmap,
identifier=identifier,
language=language,
lines=fragment_lines,
begin=begin,
end=end)
def parse(self, input_text, syncmap):
from lxml import etree
root = etree.fromstring(gf.safe_bytes(input_text))
for frag in root:
identifier = gf.safe_unicode(frag.get("id"))
begin = gf.time_from_ssmmm(frag.get("begin"))
end = gf.time_from_ssmmm(frag.get("end"))
lines = []
for child in frag:
if child.tag == "line":
lines.append(gf.safe_unicode(child.text))
self._add_fragment(
syncmap=syncmap,
identifier=identifier,
lines=lines,
begin=begin,
end=end
)
def parse(self, input_text, syncmap):
from lxml import etree
ttml_ns = "{http://www.w3.org/ns/ttml}"
xml_ns = "{http://www.w3.org/XML/1998/namespace}"
root = etree.fromstring(gf.safe_bytes(input_text))
language = root.get(xml_ns + "lang")
for elem in root.iter(ttml_ns + "p"):
identifier = gf.safe_unicode(elem.get(xml_ns + "id"))
begin = gf.time_from_ttml(elem.get("begin"))
end = gf.time_from_ttml(elem.get("end"))
fragment_lines = self._get_lines_from_node_text(elem)
self._add_fragment(
syncmap=syncmap,
identifier=identifier,
language=language,
lines=fragment_lines,
begin=begin,
end=end
)
def parse(self, input_text, syncmap):
from lxml import etree
root = etree.fromstring(gf.safe_bytes(input_text))
for frag in root:
for child in frag:
if child.tag == "identifier":
identifier = gf.safe_unicode(child.text)
elif child.tag == "start":
begin = gf.time_from_ssmmm(child.text)
elif child.tag == "end":
end = gf.time_from_ssmmm(child.text)
# TODO read text from additional text_file?
self._add_fragment(
syncmap=syncmap,
identifier=identifier,
lines=[u""],
begin=begin,
end=end
)
def _synthesize_multiple_c_extension(self, text_file, output_file_path, quit_after=None, backwards=False):
"""
Synthesize multiple text fragments, using the cfw extension.
Return a tuple (anchors, total_time, num_chars).
:rtype: (bool, (list, :class:`~aeneas.exacttiming.TimeValue`, int))
"""
self.log(u"Synthesizing using C extension...")
# convert parameters from Python values to C values
try:
c_quit_after = float(quit_after)
except TypeError:
c_quit_after = 0.0
c_backwards = 0
if backwards:
c_backwards = 1
self.log([u"output_file_path: %s", output_file_path])
self.log([u"c_quit_after: %.3f", c_quit_after])
self.log([u"c_backwards: %d", c_backwards])
self.log(u"Preparing u_text...")
u_text = []
fragments = text_file.fragments
for fragment in fragments:
f_lang = fragment.language
f_text = fragment.filtered_text
if f_lang is None:
f_lang = self.DEFAULT_LANGUAGE
f_voice_code = self.VOICE_CODE_TO_SUBPROCESS[self._language_to_voice_code(f_lang)]
if f_text is None:
f_text = u""
u_text.append((f_voice_code, f_text))
self.log(u"Preparing u_text... done")
# call C extension
sr = None
sf = None
intervals = None
self.log(u"Preparing c_text...")
if gf.PY2:
# Python 2 => pass byte strings
c_text = [(gf.safe_bytes(t[0]), gf.safe_bytes(t[1])) for t in u_text]
else:
# Python 3 => pass Unicode strings
c_text = [(gf.safe_unicode(t[0]), gf.safe_unicode(t[1])) for t in u_text]
self.log(u"Preparing c_text... done")
self.log(u"Calling aeneas.cfw directly")
try:
self.log(u"Importing aeneas.cfw...")
import aeneas.cfw.cfw
self.log(u"Importing aeneas.cfw... done")
self.log(u"Calling aeneas.cfw...")
sr, sf, intervals = aeneas.cfw.cfw.synthesize_multiple(
output_file_path,
c_quit_after,
c_backwards,
c_text
)
self.log(u"Calling aeneas.cfw... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while running cfw", exc, False, None)
return (False, None)
self.log([u"sr: %d", sr])
self.log([u"sf: %d", sf])
# create output
anchors = []
current_time = TimeValue("0.000")
num_chars = 0
if backwards:
fragments = fragments[::-1]
for i in range(sf):
# get the correct fragment
fragment = fragments[i]
# store for later output
anchors.append([
TimeValue(intervals[i][0]),
fragment.identifier,
fragment.filtered_text
])
# increase the character counter
num_chars += fragment.characters
# update current_time
current_time = TimeValue(intervals[i][1])
# return output
# NOTE anchors do not make sense if backwards == True
self.log([u"Returning %d time anchors", len(anchors)])
self.log([u"Current time %.3f", current_time])
self.log([u"Synthesized %d characters", num_chars])
self.log(u"Synthesizing using C extension... done")
return (True, (anchors, current_time, num_chars))
def perform_command(self):
"""
Perform command and return the appropriate exit code.
:rtype: int
"""
if len(self.actual_arguments) < 2:
return self.print_help()
input_file_path = self.actual_arguments[0]
output_file_path = self.actual_arguments[1]
output_text_format = self.has_option_with_value(u"--format")
if output_text_format is None:
output_text_format = u"%.18e"
output_binary = self.has_option([u"-b", u"--binary"])
output_npz = self.has_option([u"-z", u"--npz"])
output_npy = self.has_option([u"-n", u"--npy"])
delete_first = self.has_option([u"-d", u"--delete-first"])
transpose = self.has_option([u"-t", u"--transpose"])
self.check_c_extensions("cmfcc")
if not self.check_input_file(input_file_path):
return self.ERROR_EXIT_CODE
if not self.check_output_file(output_file_path):
return self.ERROR_EXIT_CODE
try:
mfccs = AudioFileMFCC(input_file_path,
rconf=self.rconf,
logger=self.logger).all_mfcc
if delete_first:
mfccs = mfccs[1:, :]
if transpose:
mfccs = mfccs.transpose()
if output_binary:
# save as a raw C float64 binary file
mapped = numpy.memmap(output_file_path,
dtype="float64",
mode="w+",
shape=mfccs.shape)
mapped[:] = mfccs[:]
mapped.flush()
del mapped
elif output_npz:
# save as a .npz compressed binary file
with io.open(output_file_path, "wb") as output_file:
numpy.savez(output_file, mfccs)
elif output_npy:
# save as a .npy binary file
with io.open(output_file_path, "wb") as output_file:
numpy.save(output_file, mfccs)
else:
# save as a text file
# NOTE: in Python 2, passing the fmt value a Unicode string crashes NumPy
# hence, converting back to bytes, which works in Python 3 too
numpy.savetxt(output_file_path,
mfccs,
fmt=gf.safe_bytes(output_text_format))
self.print_info(u"MFCCs shape: %d %d" % (mfccs.shape))
self.print_success(u"MFCCs saved to '%s'" % (output_file_path))
return self.NO_ERROR_EXIT_CODE
except AudioFileConverterError:
self.print_error(u"Unable to call the ffmpeg executable '%s'" %
(self.rconf[RuntimeConfiguration.FFMPEG_PATH]))
self.print_error(u"Make sure the path to ffmpeg is correct")
except (AudioFileUnsupportedFormatError, AudioFileNotInitializedError):
self.print_error(u"Cannot read file '%s'" % (input_file_path))
self.print_error(u"Check that its format is supported by ffmpeg")
except OSError:
self.print_error(u"Cannot write file '%s'" % (output_file_path))
return self.ERROR_EXIT_CODE
def _synthesize_single_subprocess_helper(self,
text,
voice_code,
output_file_path=None,
return_audio_data=True):
"""
This is an helper function to synthesize a single text fragment via ``subprocess``.
If ``output_file_path`` is ``None``,
the audio data will not persist to file at the end of the method.
If ``return_audio_data`` is ``True``,
return the audio data at the end of the function call;
if ``False``, just return ``(True, None)`` in case of success.
:rtype: tuple (result, (duration, sample_rate, codec, data)) or (result, None)
"""
# return zero if text is the empty string
if len(text) == 0:
#
# NOTE sample_rate, codec, data do not matter
# if the duration is 0.000 => set them to None
#
self.log(u"len(text) is zero: returning 0.000")
return (True, (TimeValue("0.000"), None, None, None))
# create a temporary output file if needed
synt_tmp_file = (output_file_path is None)
if synt_tmp_file:
self.log(
u"Synthesizer helper called with output_file_path=None => creating temporary output file"
)
output_file_handler, output_file_path = gf.tmp_file(
suffix=u".wav", root=self.rconf[RuntimeConfiguration.TMP_PATH])
self.log([u"Temporary output file path is '%s'", output_file_path])
try:
# if the TTS engine reads text from file,
# write the text into a temporary file
if self.CLI_PARAMETER_TEXT_PATH in self.subprocess_arguments:
self.log(u"TTS engine reads text from file")
tmp_text_file_handler, tmp_text_file_path = gf.tmp_file(
suffix=u".txt",
root=self.rconf[RuntimeConfiguration.TMP_PATH])
self.log([
u"Creating temporary text file '%s'...", tmp_text_file_path
])
with io.open(tmp_text_file_path, "w",
encoding="utf-8") as tmp_text_file:
tmp_text_file.write(text)
self.log([
u"Creating temporary text file '%s'... done",
tmp_text_file_path
])
else:
self.log(u"TTS engine reads text from stdin")
tmp_text_file_handler = None
tmp_text_file_path = None
# copy all relevant arguments
self.log(u"Creating arguments list...")
arguments = []
for arg in self.subprocess_arguments:
if arg == self.CLI_PARAMETER_VOICE_CODE_FUNCTION:
arguments.extend(
self._voice_code_to_subprocess(voice_code))
elif arg == self.CLI_PARAMETER_VOICE_CODE_STRING:
arguments.append(voice_code)
elif arg == self.CLI_PARAMETER_TEXT_PATH:
arguments.append(tmp_text_file_path)
elif arg == self.CLI_PARAMETER_WAVE_PATH:
arguments.append(output_file_path)
elif arg == self.CLI_PARAMETER_TEXT_STDIN:
# placeholder, do not append
pass
elif arg == self.CLI_PARAMETER_WAVE_STDOUT:
# placeholder, do not append
pass
else:
arguments.append(arg)
self.log(u"Creating arguments list... done")
# actual call via subprocess
self.log(u"Calling TTS engine...")
self.log([u"Calling with arguments '%s'", arguments])
self.log([u"Calling with text '%s'", text])
proc = subprocess.Popen(arguments,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True)
if self.CLI_PARAMETER_TEXT_STDIN in self.subprocess_arguments:
self.log(u"Passing text via stdin...")
if gf.PY2:
(stdoutdata,
stderrdata) = proc.communicate(input=gf.safe_bytes(text))
else:
(stdoutdata, stderrdata) = proc.communicate(input=text)
self.log(u"Passing text via stdin... done")
else:
self.log(u"Passing text via file...")
(stdoutdata, stderrdata) = proc.communicate()
self.log(u"Passing text via file... done")
proc.stdout.close()
proc.stdin.close()
proc.stderr.close()
if self.CLI_PARAMETER_WAVE_STDOUT in self.subprocess_arguments:
self.log(u"TTS engine wrote audio data to stdout")
self.log(
[u"Writing audio data to file '%s'...", output_file_path])
with io.open(output_file_path, "wb") as output_file:
output_file.write(stdoutdata)
self.log([
u"Writing audio data to file '%s'... done",
output_file_path
])
else:
self.log(u"TTS engine wrote audio data to file")
if tmp_text_file_path is not None:
self.log(
[u"Delete temporary text file '%s'", tmp_text_file_path])
gf.delete_file(tmp_text_file_handler, tmp_text_file_path)
self.log(u"Calling TTS ... done")
except Exception as exc:
self.log_exc(
u"An unexpected error occurred while calling TTS engine via subprocess",
exc, False, None)
return (False, None)
# check the file can be read
if not gf.file_can_be_read(output_file_path):
self.log_exc(
u"Output file '%s' cannot be read" % (output_file_path), None,
True, None)
return (False, None)
# read audio data
ret = self._read_audio_data(
output_file_path) if return_audio_data else (True, None)
# if the output file was temporary, remove it
if synt_tmp_file:
self.log([
u"Removing temporary output file path '%s'", output_file_path
])
gf.delete_file(output_file_handler, output_file_path)
# return audio data or (True, None)
return ret
def _synthesize_single_subprocess(self, text, voice_code, output_file_path):
"""
Synthesize a single text fragment via ``subprocess``.
:rtype: tuple (result, (duration, sample_rate, encoding, samples))
"""
self.log(u"Synthesizing using pure Python...")
try:
# if the TTS engine reads text from file,
# write the text into a temporary file
if self.CLI_PARAMETER_TEXT_PATH in self.subprocess_arguments:
self.log(u"TTS engine reads text from file")
tmp_text_file_handler, tmp_text_file_path = gf.tmp_file(suffix=u".txt", root=self.rconf[RuntimeConfiguration.TMP_PATH])
self.log([u"Creating temporary text file '%s'...", tmp_text_file_path])
with io.open(tmp_text_file_path, "w", encoding="utf-8") as tmp_text_file:
tmp_text_file.write(text)
self.log([u"Creating temporary text file '%s'... done", tmp_text_file_path])
else:
self.log(u"TTS engine reads text from stdin")
tmp_text_file_handler = None
tmp_text_file_path = None
# copy all relevant arguments
self.log(u"Creating arguments list...")
arguments = []
for arg in self.subprocess_arguments:
if arg == self.CLI_PARAMETER_VOICE_CODE_FUNCTION:
arguments.extend(self._voice_code_to_subprocess(voice_code))
elif arg == self.CLI_PARAMETER_VOICE_CODE_STRING:
arguments.append(voice_code)
elif arg == self.CLI_PARAMETER_TEXT_PATH:
arguments.append(tmp_text_file_path)
elif arg == self.CLI_PARAMETER_WAVE_PATH:
arguments.append(output_file_path)
elif arg == self.CLI_PARAMETER_TEXT_STDIN:
# placeholder, do not append
pass
elif arg == self.CLI_PARAMETER_WAVE_STDOUT:
# placeholder, do not append
pass
else:
arguments.append(arg)
self.log(u"Creating arguments list... done")
# actual call via subprocess
self.log(u"Calling TTS engine...")
self.log([u"Calling with arguments '%s'", arguments])
self.log([u"Calling with text '%s'", text])
proc = subprocess.Popen(
arguments,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True
)
if self.CLI_PARAMETER_TEXT_STDIN in self.subprocess_arguments:
self.log(u"Passing text via stdin...")
if gf.PY2:
(stdoutdata, stderrdata) = proc.communicate(input=gf.safe_bytes(text))
else:
(stdoutdata, stderrdata) = proc.communicate(input=text)
self.log(u"Passing text via stdin... done")
else:
self.log(u"Passing text via file...")
(stdoutdata, stderrdata) = proc.communicate()
self.log(u"Passing text via file... done")
proc.stdout.close()
proc.stdin.close()
proc.stderr.close()
if self.CLI_PARAMETER_WAVE_STDOUT in self.subprocess_arguments:
self.log(u"TTS engine wrote audio data to stdout")
self.log([u"Writing audio data to file '%s'...", output_file_path])
with io.open(output_file_path, "wb") as output_file:
output_file.write(stdoutdata)
self.log([u"Writing audio data to file '%s'... done", output_file_path])
else:
self.log(u"TTS engine wrote audio data to file")
if tmp_text_file_path is not None:
self.log([u"Delete temporary text file '%s'", tmp_text_file_path])
gf.delete_file(tmp_text_file_handler, tmp_text_file_path)
self.log(u"Calling TTS ... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while calling TTS engine via subprocess", exc, False, None)
return (False, None)
# check the file can be read
if not gf.file_can_be_read(output_file_path):
self.log_exc(u"Output file '%s' cannot be read" % (output_file_path), None, True, None)
return (False, None)
# return the duration of the output file
try:
# if we know the TTS outputs to PCM16 mono WAVE,
# we can read samples directly from it,
# without an intermediate conversion through ffmpeg
audio_file = AudioFile(
file_path=output_file_path,
is_mono_wave=self.OUTPUT_MONO_WAVE,
rconf=self.rconf,
logger=self.logger
)
audio_file.read_samples_from_file()
self.log([u"Duration of '%s': %f", output_file_path, audio_file.audio_length])
self.log(u"Synthesizing using pure Python... done")
return (True, (
audio_file.audio_length,
audio_file.audio_sample_rate,
audio_file.audio_format,
audio_file.audio_samples
))
except (AudioFileUnsupportedFormatError, OSError) as exc:
self.log_exc(u"An unexpected error occurred while trying to read the sythesized audio file", exc, True, None)
return (False, None)
def _synthesize_multiple_c_extension(self, text_file, output_file_path, quit_after=None, backwards=False):
"""
Synthesize multiple text fragments, using the cew extension.
Return a tuple (anchors, total_time, num_chars).
:rtype: (bool, (list, :class:`~aeneas.timevalue.TimeValue`, int))
"""
self.log(u"Synthesizing using C extension...")
# convert parameters from Python values to C values
try:
c_quit_after = float(quit_after)
except TypeError:
c_quit_after = 0.0
c_backwards = 0
if backwards:
c_backwards = 1
self.log([u"output_file_path: %s", output_file_path])
self.log([u"c_quit_after: %.3f", c_quit_after])
self.log([u"c_backwards: %d", c_backwards])
self.log(u"Preparing u_text...")
u_text = []
fragments = text_file.fragments
for fragment in fragments:
f_lang = fragment.language
f_text = fragment.filtered_text
if f_lang is None:
f_lang = self.DEFAULT_LANGUAGE
f_voice_code = self._language_to_voice_code(f_lang)
if f_text is None:
f_text = u""
u_text.append((f_voice_code, f_text))
self.log(u"Preparing u_text... done")
# call C extension
sr = None
sf = None
intervals = None
if self.rconf[RuntimeConfiguration.CEW_SUBPROCESS_ENABLED]:
self.log(u"Using cewsubprocess to call aeneas.cew")
try:
self.log(u"Importing aeneas.cewsubprocess...")
from aeneas.cewsubprocess import CEWSubprocess
self.log(u"Importing aeneas.cewsubprocess... done")
self.log(u"Calling aeneas.cewsubprocess...")
cewsub = CEWSubprocess(rconf=self.rconf, logger=self.logger)
sr, sf, intervals = cewsub.synthesize_multiple(output_file_path, c_quit_after, c_backwards, u_text)
self.log(u"Calling aeneas.cewsubprocess... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while running cewsubprocess", exc, False, None)
# NOTE not critical, try calling aeneas.cew directly
#return (False, None)
if sr is None:
self.log(u"Preparing c_text...")
if gf.PY2:
# Python 2 => pass byte strings
c_text = [(gf.safe_bytes(t[0]), gf.safe_bytes(t[1])) for t in u_text]
else:
# Python 3 => pass Unicode strings
c_text = [(gf.safe_unicode(t[0]), gf.safe_unicode(t[1])) for t in u_text]
self.log(u"Preparing c_text... done")
self.log(u"Calling aeneas.cew directly")
try:
self.log(u"Importing aeneas.cew...")
import aeneas.cew.cew
self.log(u"Importing aeneas.cew... done")
self.log(u"Calling aeneas.cew...")
sr, sf, intervals = aeneas.cew.cew.synthesize_multiple(
output_file_path,
c_quit_after,
c_backwards,
c_text
)
self.log(u"Calling aeneas.cew... done")
except Exception as exc:
self.log_exc(u"An unexpected error occurred while running cew", exc, False, None)
return (False, None)
self.log([u"sr: %d", sr])
self.log([u"sf: %d", sf])
# create output
anchors = []
current_time = TimeValue("0.000")
num_chars = 0
if backwards:
fragments = fragments[::-1]
for i in range(sf):
# get the correct fragment
fragment = fragments[i]
# store for later output
anchors.append([
TimeValue(intervals[i][0]),
fragment.identifier,
fragment.filtered_text
])
# increase the character counter
num_chars += fragment.characters
# update current_time
current_time = TimeValue(intervals[i][1])
# return output
# NOTE anchors do not make sense if backwards == True
self.log([u"Returning %d time anchors", len(anchors)])
self.log([u"Current time %.3f", current_time])
self.log([u"Synthesized %d characters", num_chars])
self.log(u"Synthesizing using C extension... done")
return (True, (anchors, current_time, num_chars))
def perform_command(self):
"""
Perform command and return the appropriate exit code.
:rtype: int
"""
if len(self.actual_arguments) < 2:
return self.print_help()
input_file_path = self.actual_arguments[0]
output_file_path = self.actual_arguments[1]
output_text_format = self.has_option_with_value(u"--format")
if output_text_format is None:
output_text_format = u"%.18e"
output_binary = self.has_option([u"-b", u"--binary"])
output_npz = self.has_option([u"-z", u"--npz"])
output_npy = self.has_option([u"-n", u"--npy"])
delete_first = self.has_option([u"-d", u"--delete-first"])
transpose = self.has_option([u"-t", u"--transpose"])
self.check_c_extensions("cmfcc")
if not self.check_input_file(input_file_path):
return self.ERROR_EXIT_CODE
if not self.check_output_file(output_file_path):
return self.ERROR_EXIT_CODE
try:
mfccs = AudioFileMFCC(input_file_path, rconf=self.rconf, logger=self.logger).all_mfcc
if delete_first:
mfccs = mfccs[1:, :]
if transpose:
mfccs = mfccs.transpose()
if output_binary:
# save as a raw C float64 binary file
mapped = numpy.memmap(output_file_path, dtype="float64", mode="w+", shape=mfccs.shape)
mapped[:] = mfccs[:]
mapped.flush()
del mapped
elif output_npz:
# save as a .npz compressed binary file
with io.open(output_file_path, "wb") as output_file:
numpy.savez(output_file, mfccs)
elif output_npy:
# save as a .npy binary file
with io.open(output_file_path, "wb") as output_file:
numpy.save(output_file, mfccs)
else:
# save as a text file
# NOTE: in Python 2, passing the fmt value a Unicode string crashes NumPy
# hence, converting back to bytes, which works in Python 3 too
numpy.savetxt(output_file_path, mfccs, fmt=gf.safe_bytes(output_text_format))
self.print_info(u"MFCCs shape: %d %d" % (mfccs.shape))
self.print_success(u"MFCCs saved to '%s'" % (output_file_path))
return self.NO_ERROR_EXIT_CODE
except AudioFileConverterError:
self.print_error(u"Unable to call the ffmpeg executable '%s'" % (self.rconf[RuntimeConfiguration.FFMPEG_PATH]))
self.print_error(u"Make sure the path to ffmpeg is correct")
except (AudioFileUnsupportedFormatError, AudioFileNotInitializedError):
self.print_error(u"Cannot read file '%s'" % (input_file_path))
self.print_error(u"Check that its format is supported by ffmpeg")
except OSError:
self.print_error(u"Cannot write file '%s'" % (output_file_path))
return self.ERROR_EXIT_CODE