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 _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))