forked from home-assistant/core
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tts.py
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tts.py
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"""
Support for the Amazon Polly text to speech service.
For more details about this component, please refer to the documentation at
https://home-assistant.io/components/tts.amazon_polly/
"""
import logging
import voluptuous as vol
import homeassistant.helpers.config_validation as cv
from . import PLATFORM_SCHEMA, Provider
REQUIREMENTS = ['boto3==1.9.16']
_LOGGER = logging.getLogger(__name__)
CONF_REGION = 'region_name'
CONF_ACCESS_KEY_ID = 'aws_access_key_id'
CONF_SECRET_ACCESS_KEY = 'aws_secret_access_key'
CONF_PROFILE_NAME = 'profile_name'
ATTR_CREDENTIALS = 'credentials'
DEFAULT_REGION = 'us-east-1'
SUPPORTED_REGIONS = ['us-east-1', 'us-east-2', 'us-west-1', 'us-west-2',
'ca-central-1', 'eu-west-1', 'eu-central-1', 'eu-west-2',
'eu-west-3', 'ap-southeast-1', 'ap-southeast-2',
'ap-northeast-2', 'ap-northeast-1', 'ap-south-1',
'sa-east-1']
CONF_VOICE = 'voice'
CONF_OUTPUT_FORMAT = 'output_format'
CONF_SAMPLE_RATE = 'sample_rate'
CONF_TEXT_TYPE = 'text_type'
SUPPORTED_VOICES = [
'Zhiyu', # Chinese
'Mads', 'Naja', # Danish
'Ruben', 'Lotte', # Dutch
'Russell', 'Nicole', # English Austrailian
'Brian', 'Amy', 'Emma', # English
'Aditi', 'Raveena', # English, Indian
'Joey', 'Justin', 'Matthew', 'Ivy', 'Joanna', 'Kendra', 'Kimberly',
'Salli', # English
'Geraint', # English Welsh
'Mathieu', 'Celine', 'Lea', # French
'Chantal', # French Canadian
'Hans', 'Marlene', 'Vicki', # German
'Aditi', # Hindi
'Karl', 'Dora', # Icelandic
'Giorgio', 'Carla', 'Bianca', # Italian
'Takumi', 'Mizuki', # Japanese
'Seoyeon', # Korean
'Liv', # Norwegian
'Jacek', 'Jan', 'Ewa', 'Maja', # Polish
'Ricardo', 'Vitoria', # Portuguese, Brazilian
'Cristiano', 'Ines', # Portuguese, European
'Carmen', # Romanian
'Maxim', 'Tatyana', # Russian
'Enrique', 'Conchita', 'Lucia', # Spanish European
'Mia', # Spanish Mexican
'Miguel', 'Penelope', # Spanish US
'Astrid', # Swedish
'Filiz', # Turkish
'Gwyneth', # Welsh
]
SUPPORTED_OUTPUT_FORMATS = ['mp3', 'ogg_vorbis', 'pcm']
SUPPORTED_SAMPLE_RATES = ['8000', '16000', '22050']
SUPPORTED_SAMPLE_RATES_MAP = {
'mp3': ['8000', '16000', '22050'],
'ogg_vorbis': ['8000', '16000', '22050'],
'pcm': ['8000', '16000'],
}
SUPPORTED_TEXT_TYPES = ['text', 'ssml']
CONTENT_TYPE_EXTENSIONS = {
'audio/mpeg': 'mp3',
'audio/ogg': 'ogg',
'audio/pcm': 'pcm',
}
DEFAULT_VOICE = 'Joanna'
DEFAULT_OUTPUT_FORMAT = 'mp3'
DEFAULT_TEXT_TYPE = 'text'
DEFAULT_SAMPLE_RATES = {
'mp3': '22050',
'ogg_vorbis': '22050',
'pcm': '16000',
}
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Optional(CONF_REGION, default=DEFAULT_REGION):
vol.In(SUPPORTED_REGIONS),
vol.Inclusive(CONF_ACCESS_KEY_ID, ATTR_CREDENTIALS): cv.string,
vol.Inclusive(CONF_SECRET_ACCESS_KEY, ATTR_CREDENTIALS): cv.string,
vol.Exclusive(CONF_PROFILE_NAME, 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),
vol.Optional(CONF_SAMPLE_RATE):
vol.All(cv.string, vol.In(SUPPORTED_SAMPLE_RATES)),
vol.Optional(CONF_TEXT_TYPE, default=DEFAULT_TEXT_TYPE):
vol.In(SUPPORTED_TEXT_TYPES),
})
def get_engine(hass, config):
"""Set up Amazon Polly speech component."""
output_format = config.get(CONF_OUTPUT_FORMAT)
sample_rate = config.get(
CONF_SAMPLE_RATE, DEFAULT_SAMPLE_RATES[output_format])
if sample_rate not in SUPPORTED_SAMPLE_RATES_MAP.get(output_format):
_LOGGER.error("%s is not a valid sample rate for %s",
sample_rate, output_format)
return None
config[CONF_SAMPLE_RATE] = sample_rate
import boto3
profile = config.get(CONF_PROFILE_NAME)
if profile is not None:
boto3.setup_default_session(profile_name=profile)
aws_config = {
CONF_REGION: config.get(CONF_REGION),
CONF_ACCESS_KEY_ID: config.get(CONF_ACCESS_KEY_ID),
CONF_SECRET_ACCESS_KEY: config.get(CONF_SECRET_ACCESS_KEY),
}
del config[CONF_REGION]
del config[CONF_ACCESS_KEY_ID]
del config[CONF_SECRET_ACCESS_KEY]
polly_client = boto3.client('polly', **aws_config)
supported_languages = []
all_voices = {}
all_voices_req = polly_client.describe_voices()
for voice in all_voices_req.get('Voices'):
all_voices[voice.get('Id')] = voice
if voice.get('LanguageCode') not in supported_languages:
supported_languages.append(voice.get('LanguageCode'))
return AmazonPollyProvider(
polly_client, config, supported_languages, all_voices)
class AmazonPollyProvider(Provider):
"""Amazon Polly speech api provider."""
def __init__(self, polly_client, config, supported_languages,
all_voices):
"""Initialize Amazon Polly provider for TTS."""
self.client = polly_client
self.config = config
self.supported_langs = supported_languages
self.all_voices = all_voices
self.default_voice = self.config.get(CONF_VOICE)
self.name = 'Amazon Polly'
@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.all_voices.get(self.default_voice).get('LanguageCode')
@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 Polly."""
voice_id = options.get(CONF_VOICE, self.default_voice)
voice_in_dict = self.all_voices.get(voice_id)
if language != voice_in_dict.get('LanguageCode'):
_LOGGER.error("%s does not support the %s language",
voice_id, language)
return None, None
resp = self.client.synthesize_speech(
OutputFormat=self.config[CONF_OUTPUT_FORMAT],
SampleRate=self.config[CONF_SAMPLE_RATE],
Text=message,
TextType=self.config[CONF_TEXT_TYPE],
VoiceId=voice_id
)
return (CONTENT_TYPE_EXTENSIONS[resp.get('ContentType')],
resp.get('AudioStream').read())