/
tts.py
136 lines (111 loc) · 3.68 KB
/
tts.py
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"""Support for IBM Watson TTS integration."""
import logging
import voluptuous as vol
from homeassistant.components.tts import PLATFORM_SCHEMA, Provider
import homeassistant.helpers.config_validation as cv
_LOGGER = logging.getLogger(__name__)
CONF_URL = 'watson_url'
CONF_APIKEY = 'watson_apikey'
ATTR_CREDENTIALS = 'credentials'
DEFAULT_URL = 'https://stream.watsonplatform.net/text-to-speech/api'
CONF_VOICE = 'voice'
CONF_OUTPUT_FORMAT = 'output_format'
CONF_TEXT_TYPE = 'text'
SUPPORTED_VOICES = [
"de-DE_BirgitVoice",
"de-DE_BirgitV2Voice",
"de-DE_DieterVoice",
"de-DE_DieterV2Voice"
"en-GB_KateVoice",
"en-US_AllisonVoice",
"en-US_AllisonV2Voice",
"en-US_LisaVoice",
"en-US_LisaV2Voice",
"en-US_MichaelVoice",
"en-US_MichaelV2Voice",
"es-ES_EnriqueVoice",
"es-ES_LauraVoice",
"es-LA_SofiaVoice",
"es-US_SofiaVoice",
"fr-FR_ReneeVoice",
"it-IT_FrancescaVoice",
"it-IT_FrancescaV2Voice",
"ja-JP_EmiVoice",
"pt-BR_IsabelaVoice"
]
SUPPORTED_OUTPUT_FORMATS = [
'audio/flac',
'audio/mp3',
'audio/mpeg',
'audio/ogg',
'audio/ogg;codecs=opus',
'audio/ogg;codecs=vorbis',
'audio/wav'
]
CONTENT_TYPE_EXTENSIONS = {
'audio/flac': 'flac',
'audio/mp3': 'mp3',
'audio/mpeg': 'mp3',
'audio/ogg': 'ogg',
'audio/ogg;codecs=opus': 'ogg',
'audio/ogg;codecs=vorbis': 'ogg',
'audio/wav': 'wav',
}
DEFAULT_VOICE = 'en-US_AllisonVoice'
DEFAULT_OUTPUT_FORMAT = 'audio/mp3'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(CONF_URL, default=DEFAULT_URL): cv.string,
vol.Inclusive(CONF_APIKEY, ATTR_CREDENTIALS): cv.string,
vol.Optional(CONF_VOICE, default=DEFAULT_VOICE): vol.In(SUPPORTED_VOICES),
vol.Optional(CONF_OUTPUT_FORMAT, default=DEFAULT_OUTPUT_FORMAT):
vol.In(SUPPORTED_OUTPUT_FORMATS),
})
def get_engine(hass, config):
"""Set up IBM Watson TTS component."""
from ibm_watson import TextToSpeechV1
service = TextToSpeechV1(
url=config.get(CONF_URL),
iam_apikey=config.get(CONF_APIKEY)
)
supported_languages = list({s[:5] for s in SUPPORTED_VOICES})
default_voice = config.get(CONF_VOICE)
output_format = config.get(CONF_OUTPUT_FORMAT)
return WatsonTTSProvider(
service, supported_languages, default_voice, output_format)
class WatsonTTSProvider(Provider):
"""IBM Watson TTS api provider."""
def __init__(self,
service,
supported_languages,
default_voice,
output_format):
"""Initialize Amazon Polly provider for TTS."""
self.service = service
self.supported_langs = supported_languages
self.default_lang = default_voice[:5]
self.default_voice = default_voice
self.output_format = output_format
self.name = 'Watson TTS'
@property
def supported_languages(self):
"""Return a list of supported languages."""
return self.supported_langs
@property
def default_language(self):
"""Return the default language."""
return self.default_lang
@property
def default_options(self):
"""Return dict include default options."""
return {CONF_VOICE: self.default_voice}
@property
def supported_options(self):
"""Return a list of supported options."""
return [CONF_VOICE]
def get_tts_audio(self, message, language=None, options=None):
"""Request TTS file from Watson TTS."""
response = self.service.synthesize(
message, accept=self.output_format,
voice=self.default_voice).get_result()
return (CONTENT_TYPE_EXTENSIONS[self.output_format],
response.content)