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from google.cloud.texttospeech_v1 import TextToSpeechClient
from airflow.contrib.hooks.gcp_api_base_hook import GoogleCloudBaseHook
[docs]class GCPTextToSpeechHook(GoogleCloudBaseHook):
"""
Hook for Google Cloud Text to Speech API.
:param gcp_conn_id: The connection ID to use when fetching connection info.
:type gcp_conn_id: str
:param delegate_to: The account to impersonate, if any.
For this to work, the service account making the request must have
domain-wide delegation enabled.
:type delegate_to: str
"""
def __init__(self, gcp_conn_id="google_cloud_default", delegate_to=None):
super(GCPTextToSpeechHook, self).__init__(gcp_conn_id, delegate_to)
[docs] def get_conn(self):
"""
Retrieves connection to Cloud Text to Speech.
:return: Google Cloud Text to Speech client object.
:rtype: google.cloud.texttospeech_v1.TextToSpeechClient
"""
if not self._client:
self._client = TextToSpeechClient(credentials=self._get_credentials())
return self._client
[docs] def synthesize_speech(self, input_data, voice, audio_config, retry=None, timeout=None):
"""
Synthesizes text input
:param input_data: text input to be synthesized. See more:
https://googleapis.github.io/google-cloud-python/latest/texttospeech/gapic/v1/types.html#google.cloud.texttospeech_v1.types.SynthesisInput
:type input_data: dict or google.cloud.texttospeech_v1.types.SynthesisInput
:param voice: configuration of voice to be used in synthesis. See more:
https://googleapis.github.io/google-cloud-python/latest/texttospeech/gapic/v1/types.html#google.cloud.texttospeech_v1.types.VoiceSelectionParams
:type voice: dict or google.cloud.texttospeech_v1.types.VoiceSelectionParams
:param audio_config: configuration of the synthesized audio. See more:
https://googleapis.github.io/google-cloud-python/latest/texttospeech/gapic/v1/types.html#google.cloud.texttospeech_v1.types.AudioConfig
:type audio_config: dict or google.cloud.texttospeech_v1.types.AudioConfig
:return: SynthesizeSpeechResponse See more:
https://googleapis.github.io/google-cloud-python/latest/texttospeech/gapic/v1/types.html#google.cloud.texttospeech_v1.types.SynthesizeSpeechResponse
:rtype: object
:param retry: (Optional) A retry object used to retry requests. If None is specified,
requests will not be retried.
:type retry: google.api_core.retry.Retry
:param timeout: (Optional) The amount of time, in seconds, to wait for the request to complete.
Note that if retry is specified, the timeout applies to each individual attempt.
:type timeout: float
"""
client = self.get_conn()
self.log.info("Synthesizing input: %s" % input_data)
return client.synthesize_speech(
input_=input_data, voice=voice, audio_config=audio_config, retry=retry, timeout=timeout
)