feat(tts): Adding support for zero shot model (#63)

* feat(tts): Adding support for pflow model input.

* chore(tts): Updated SHA for common github repo

riva/client/tts.py

@@ -9,7 +9,7 @@
 import riva.client.proto.riva_tts_pb2_grpc as rtts_srv
 from riva.client import Auth
 from riva.client.proto.riva_audio_pb2 import AudioEncoding
-
+import wave
 
 class SpeechSynthesisService:
     """
@@ -34,20 +34,27 @@ def synthesize(
         language_code: str = 'en-US',
         encoding: AudioEncoding = AudioEncoding.LINEAR_PCM,
         sample_rate_hz: int = 44100,
+        audio_prompt_file: Optional[str] = None,
+        audio_prompt_encoding: AudioEncoding = AudioEncoding.LINEAR_PCM,
+        quality: int = 20,
         future: bool = False,
     ) -> Union[rtts.SynthesizeSpeechResponse, _MultiThreadedRendezvous]:
         """
         Synthesizes an entire audio for text :param:`text`.
 
         Args:
-            text (:obj:`str`): an input text.
-            voice_name (:obj:`str`, `optional`): a name of the voice, e.g. ``"English-US-Female-1"``. You may find
+            text (:obj:`str`): An input text.
+            voice_name (:obj:`str`, `optional`): A name of the voice, e.g. ``"English-US-Female-1"``. You may find
                 available voices in server logs or in server model directory. If this parameter is :obj:`None`, then
                 a server will select the first available model with correct :param:`language_code` value.
             language_code (:obj:`str`): a language to use.
-            encoding (:obj:`AudioEncoding`): an output audio encoding, e.g. ``AudioEncoding.LINEAR_PCM``.
-            sample_rate_hz (:obj:`int`): number of frames per second in output audio.
-            future (:obj:`bool`, defaults to :obj:`False`): whether to return an async result instead of usual
+            encoding (:obj:`AudioEncoding`): An output audio encoding, e.g. ``AudioEncoding.LINEAR_PCM``.
+            sample_rate_hz (:obj:`int`): Number of frames per second in output audio.
+            audio_prompt_file (:obj:`str`): An audio prompt file location for zero shot model.
+            audio_prompt_encoding: (:obj:`AudioEncoding`): Encoding of audio prompt file, e.g. ``AudioEncoding.LINEAR_PCM``.
+            quality: (:obj:`int`): This defines the number of times decoder is run. Higher number improves quality of generated
+                                   audio but also takes longer to generate the audio. Ranges between 1-40.
+            future (:obj:`bool`, defaults to :obj:`False`): Whether to return an async result instead of usual
                 response. You can get a response by calling ``result()`` method of the future object.
 
         Returns:
@@ -64,6 +71,16 @@ def synthesize(
         )
         if voice_name is not None:
             req.voice_name = voice_name
+        if audio_prompt_file is not None:
+            with wave.open(str(audio_prompt_file), 'rb') as wf:
+                rate = wf.getframerate()
+                req.zero_shot_data.sample_rate = rate
+            with audio_prompt_file.open('rb') as wav_f:
+                audio_data = wav_f.read()
+                req.zero_shot_data.audio_prompt = audio_data
+            req.zero_shot_data.encoding = audio_prompt_encoding
+            req.zero_shot_data.quality = quality
+
         func = self.stub.Synthesize.future if future else self.stub.Synthesize
         return func(req, metadata=self.auth.get_auth_metadata())
 
@@ -74,19 +91,26 @@ def synthesize_online(
         language_code: str = 'en-US',
         encoding: AudioEncoding = AudioEncoding.LINEAR_PCM,
         sample_rate_hz: int = 44100,
+        audio_prompt_file: Optional[str] = None,
+        audio_prompt_encoding: AudioEncoding = AudioEncoding.LINEAR_PCM,
+        quality: int = 20,
     ) -> Generator[rtts.SynthesizeSpeechResponse, None, None]:
         """
         Synthesizes and yields output audio chunks for text :param:`text` as the chunks
         becoming available.
 
         Args:
-            text (:obj:`str`): an input text.
-            voice_name (:obj:`str`, `optional`): a name of the voice, e.g. ``"English-US-Female-1"``. You may find
+            text (:obj:`str`): An input text.
+            voice_name (:obj:`str`, `optional`): A name of the voice, e.g. ``"English-US-Female-1"``. You may find
                 available voices in server logs or in server model directory. If this parameter is :obj:`None`, then
                 a server will select the first available model with correct :param:`language_code` value.
-            language_code (:obj:`str`): a language to use.
-            encoding (:obj:`AudioEncoding`): an output audio encoding, e.g. ``AudioEncoding.LINEAR_PCM``.
-            sample_rate_hz (:obj:`int`): number of frames per second in output audio.
+            language_code (:obj:`str`): A language to use.
+            encoding (:obj:`AudioEncoding`): An output audio encoding, e.g. ``AudioEncoding.LINEAR_PCM``.
+            sample_rate_hz (:obj:`int`): Number of frames per second in output audio.
+            audio_prompt_file (:obj:`str`): An audio prompt file location for zero shot model.
+            audio_prompt_encoding: (:obj:`AudioEncoding`): Encoding of audio prompt file, e.g. ``AudioEncoding.LINEAR_PCM``.
+            quality: (:obj:`int`): This defines the number of times decoder is run. Higher number improves quality of generated
+                                   audio but also takes longer to generate the audio. Ranges between 1-40.
 
         Yields:
             :obj:`riva.client.proto.riva_tts_pb2.SynthesizeSpeechResponse`: a response with output. You may find
@@ -103,4 +127,15 @@ def synthesize_online(
         )
         if voice_name is not None:
             req.voice_name = voice_name
+
+        if audio_prompt_file is not None:
+            with wave.open(str(audio_prompt_file), 'rb') as wf:
+                rate = wf.getframerate()
+                req.zero_shot_data.sample_rate = rate
+            with audio_prompt_file.open('rb') as wav_f:
+                audio_data = wav_f.read()
+                req.zero_shot_data.audio_prompt = audio_data
+            req.zero_shot_data.encoding = audio_prompt_encoding
+            req.zero_shot_data.quality = quality
+
         return self.stub.SynthesizeOnline(req, metadata=self.auth.get_auth_metadata())