Merge pull request #926 from imsakg/main

feat(gemini): add text handling to GeminiMultimodalLive

CHANGELOG.md

@@ -18,11 +18,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `session_timeout` to `FastAPIWebsocketTransport` and `WebsocketServerTransport`
   for configuring session timeouts (in seconds). Triggers `on_session_timeout` for custom timeout handling.
   See [examples/websocket-server/bot.py](https://github.com/pipecat-ai/pipecat/blob/main/examples/websocket-server/bot.py).
+- Added the new modalities option and helper function to set Gemini output modalities.
+- Added `examples/foundational/26d-gemini-multimodal-live-text.py` which is using Gemini as TEXT modality and using another TTS provider for TTS process.
 
 ### Changed
 
 - api_key, aws_access_key_id and region are no longer required parameters for the PollyTTSService (AWSTTSService)
 - Added `session_timeout` example in `examples/websocket-server/bot.py` to handle session timeout event.
+- Changed `InputParams` in `src/pipecat/services/gemini_multimodal_live/gemini.py` to support different modalities.
 
 ### Fixed
 

examples/foundational/26d-gemini-multimodal-live-text.py

@@ -0,0 +1,85 @@
+#
+# Copyright (c) 2024, Daily
+#
+# SPDX-License-Identifier: BSD 2-Clause License
+#
+
+import asyncio
+import os
+import sys
+
+import aiohttp
+from agent.services.tts.cartesia_multilingual import CartesiaMultiLingualTTSService
+from dotenv import load_dotenv
+from loguru import logger
+from runner import configure
+
+from pipecat.audio.vad.silero import SileroVADAnalyzer
+from pipecat.audio.vad.vad_analyzer import VADParams
+from pipecat.pipeline.pipeline import Pipeline
+from pipecat.pipeline.runner import PipelineRunner
+from pipecat.pipeline.task import PipelineParams, PipelineTask
+from pipecat.services.gemini_multimodal_live.gemini import GeminiMultimodalLiveLLMService
+from pipecat.transports.services.daily import DailyParams, DailyTransport
+
+load_dotenv(override=True)
+
+logger.remove(0)
+logger.add(sys.stderr, level="DEBUG")
+
+
+async def main():
+    async with aiohttp.ClientSession() as session:
+        (room_url, token) = await configure(session)
+
+        transport = DailyTransport(
+            room_url,
+            token,
+            "Respond bot",
+            DailyParams(
+                audio_in_sample_rate=16000,
+                audio_out_sample_rate=24000,
+                audio_out_enabled=True,
+                vad_enabled=True,
+                vad_audio_passthrough=True,
+                # set stop_secs to something roughly similar to the internal setting
+                # of the Multimodal Live api, just to align events. This doesn't really
+                # matter because we can only use the Multimodal Live API's phrase
+                # endpointing, for now.
+                vad_analyzer=SileroVADAnalyzer(params=VADParams(stop_secs=0.5)),
+            ),
+        )
+
+        llm = GeminiMultimodalLiveLLMService(
+            api_key=os.getenv("GOOGLE_API_KEY"),
+            # system_instruction="Talk like a pirate."
+        )
+        llm.set_model_only_text()  # This forces model to produce text only responses
+
+        tts = CartesiaMultiLingualTTSService(api_key=os.getenv("CARTESIA_API_KEY"))
+
+        pipeline = Pipeline(
+            [
+                transport.input(),
+                llm,
+                tts,
+                transport.output(),
+            ]
+        )
+
+        task = PipelineTask(
+            pipeline,
+            PipelineParams(
+                allow_interruptions=True,
+                enable_metrics=True,
+                enable_usage_metrics=True,
+            ),
+        )
+
+        runner = PipelineRunner()
+
+        await runner.run(task)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())

src/pipecat/services/gemini_multimodal_live/events.py

@@ -105,6 +105,7 @@ class InlineData(BaseModel):
 
 class Part(BaseModel):
     inlineData: Optional[InlineData] = None
+    text: Optional[str] = None
 
 
 class ModelTurn(BaseModel):

src/pipecat/services/gemini_multimodal_live/gemini.py

@@ -8,6 +8,7 @@ import asyncio
 import base64
 import json
 from dataclasses import dataclass
+from enum import Enum
 from typing import Any, Dict, List, Optional
 
 import websockets
@@ -132,6 +133,11 @@ class GeminiMultimodalLiveContextAggregatorPair:
         return self._assistant
 
 
+class GeminiMultimodalModalities(Enum):
+    TEXT = "TEXT"
+    AUDIO = "AUDIO"
+
+
 class InputParams(BaseModel):
     frequency_penalty: Optional[float] = Field(default=None, ge=0.0, le=2.0)
     max_tokens: Optional[int] = Field(default=4096, ge=1)
@@ -139,6 +145,9 @@ class InputParams(BaseModel):
     temperature: Optional[float] = Field(default=None, ge=0.0, le=2.0)
     top_k: Optional[int] = Field(default=None, ge=0)
     top_p: Optional[float] = Field(default=None, ge=0.0, le=1.0)
+    modalities: Optional[GeminiMultimodalModalities] = Field(
+        default=GeminiMultimodalModalities.AUDIO
+    )
     extra: Optional[Dict[str, Any]] = Field(default_factory=dict)
 
 
@@ -188,6 +197,7 @@ class GeminiMultimodalLiveLLMService(LLMService):
         self._bot_is_speaking = False
         self._user_audio_buffer = bytearray()
         self._bot_audio_buffer = bytearray()
+        self._bot_text_buffer = ""
 
         self._settings = {
             "frequency_penalty": params.frequency_penalty,
@@ -196,6 +206,7 @@ class GeminiMultimodalLiveLLMService(LLMService):
             "temperature": params.temperature,
             "top_k": params.top_k,
             "top_p": params.top_p,
+            "modalities": params.modalities,
             "extra": params.extra if isinstance(params.extra, dict) else {},
         }
 
@@ -208,6 +219,9 @@ class GeminiMultimodalLiveLLMService(LLMService):
     def set_video_input_paused(self, paused: bool):
         self._video_input_paused = paused
 
+    def set_model_modalities(self, modalities: GeminiMultimodalModalities):
+        self._settings["modalities"] = modalities
+
     async def set_context(self, context: OpenAILLMContext):
         """Set the context explicitly from outside the pipeline.
 
@@ -383,7 +397,7 @@ class GeminiMultimodalLiveLLMService(LLMService):
                             "temperature": self._settings["temperature"],
                             "top_k": self._settings["top_k"],
                             "top_p": self._settings["top_p"],
-                            "response_modalities": ["AUDIO"],
+                            "response_modalities": self._settings["modalities"].value,
                             "speech_config": {
                                 "voice_config": {
                                     "prebuilt_voice_config": {"voice_name": self._voice_id}
@@ -604,6 +618,15 @@ class GeminiMultimodalLiveLLMService(LLMService):
         part = evt.serverContent.modelTurn.parts[0]
         if not part:
             return
+
+        text = part.text
+        if text:
+            if not self._bot_text_buffer:
+                await self.push_frame(LLMFullResponseStartFrame())
+
+            self._bot_text_buffer += text
+            await self.push_frame(TextFrame(text=text))
+
         inline_data = part.inlineData
         if not inline_data:
             return
@@ -644,9 +667,15 @@ class GeminiMultimodalLiveLLMService(LLMService):
     async def _handle_evt_turn_complete(self, evt):
         self._bot_is_speaking = False
         audio = self._bot_audio_buffer
+        text = self._bot_text_buffer
         self._bot_audio_buffer = bytearray()
+        self._bot_text_buffer = ""
+
         if audio and self._transcribe_model_audio and self._context:
             asyncio.create_task(self._handle_transcribe_model_audio(audio, self._context))
+        elif text:
+            await self.push_frame(LLMFullResponseEndFrame())
+
         await self.push_frame(TTSStoppedFrame())
 
     def create_context_aggregator(