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"""Helper for audio loop."""
import asyncio
import logging
import traceback
import wave
from typing import Optional
import pyaudio
from google import genai
from models import AudioConfig, ModelConfig
from tools import FUNCTION_MAP
logger = logging.getLogger(__name__)
class TextLoop:
def __init__(self, model_config: ModelConfig):
self.model_config = model_config
self.client = self._setup_client()
self.session = None
def _setup_client(self) -> genai.Client:
"""Initialize the Gemini client."""
return genai.Client(
api_key=self.model_config.api_key,
http_options={"api_version": "v1alpha"},
)
async def send_text(self) -> None:
"""Handle text input and send to model."""
while True:
try:
text = await asyncio.to_thread(input, "message > ")
if text.lower() == "q":
break
await self.session.send(input=text or ".", end_of_turn=True)
except Exception as e:
logger.error(f"Error sending text: {e}")
await asyncio.sleep(0.1)
async def receive_text(self) -> None:
"""Process and handle model responses."""
while True:
try:
turn = self.session.receive()
async for response in turn:
if text := response.text:
logger.info(text)
if response.tool_call is not None:
for tool in response.tool_call.function_calls:
tool_response = FUNCTION_MAP[tool.name](**tool.args)
logger.info(tool_response)
await self.session.send(
input=tool_response, end_of_turn=True
)
await asyncio.sleep(0.1)
except Exception as e:
logger.error(f"Error receiving text: {e}")
await asyncio.sleep(0.1)
async def run(self):
try:
async with (
self.client.aio.live.connect(
model=self.model_config.name,
config={
"system_instruction": self.model_config.system_instruction,
"tools": self.model_config.tools,
"generation_config": self.model_config.generation_config,
},
) as session,
asyncio.TaskGroup() as tg,
):
self.session = session
tasks = [
tg.create_task(self.send_text()),
tg.create_task(self.receive_text()),
]
await tasks[0] # Wait for send_text to complete
raise asyncio.CancelledError("User requested exit")
except asyncio.CancelledError:
logger.info("Shutting down...")
except Exception as e:
logger.error(f"Error in main loop: {e}")
logger.debug(traceback.format_exc())
class AudioLoop:
"""Handles real-time audio streaming and processing."""
def __init__(
self,
audio_config: AudioConfig,
model_config: ModelConfig,
function_map: Optional[dict[str, callable]] = FUNCTION_MAP,
instruction_audio: Optional[str] = None,
):
"""Initialize the audio loop.
Args:
audio_config (AudioConfig): Audio configuration settings
model_config (ModelConfig): Model configuration settings
function_map (Optional[dict[str, callable]]): Function map
"""
self.audio_config = audio_config
self.model_config = model_config
self.audio_in_queue: Optional[asyncio.Queue] = None
self.out_queue: Optional[asyncio.Queue] = None
self.session = None
self.audio_stream = None
self.client = self._setup_client()
self.instruction_audio = instruction_audio
self.function_map = function_map
def _setup_client(self) -> genai.Client:
"""Initialize the Gemini client."""
return genai.Client(
api_key=self.model_config.api_key,
http_options={"api_version": "v1alpha"},
)
async def send_text(self) -> None:
"""Handle text input and send to model."""
while True:
try:
text = await asyncio.to_thread(input, "message > ")
if text.lower() == "q":
break
await self.session.send(input=text or ".", end_of_turn=True)
except Exception as e:
logger.error(f"Error sending text: {e}")
await asyncio.sleep(0.1)
async def send_realtime(self) -> None:
"""Send real-time audio data to model."""
while True:
try:
msg = await self.out_queue.get()
await self.session.send(input=msg)
except Exception as e:
logger.error(f"Error in real-time sending: {e}")
await asyncio.sleep(0.1)
def input_audio_file(self, file_path: str):
"""Read audio file and stream to the model."""
try:
with wave.open(file_path, "rb") as wave_file:
data = wave_file.readframes(wave_file.getnframes())
self.out_queue.put_nowait({"data": data, "mime_type": "audio/pcm"})
except Exception as e:
logger.error(f"Error reading audio file: {e}")
async def listen_audio(self) -> None:
"""Capture and process audio input."""
try:
pya = pyaudio.PyAudio()
mic_info = pya.get_default_input_device_info()
self.audio_stream = await asyncio.to_thread(
pya.open,
format=self.audio_config.format,
channels=self.audio_config.channels,
rate=self.audio_config.send_sample_rate,
input=True,
input_device_index=mic_info["index"],
frames_per_buffer=self.audio_config.chunk_size,
)
kwargs = {"exception_on_overflow": False} if __debug__ else {}
while True:
data = await asyncio.to_thread(
self.audio_stream.read,
self.audio_config.chunk_size,
**kwargs,
)
await self.out_queue.put({"data": data, "mime_type": "audio/pcm"})
except Exception as e:
logger.error(f"Error in audio listening: {e}")
if self.audio_stream:
self.audio_stream.close()
async def receive_audio(self) -> None:
"""Process and handle model responses."""
while True:
try:
turn = self.session.receive()
async for response in turn:
if data := response.data:
self.audio_in_queue.put_nowait(data)
continue
if text := response.text:
logger.info(text)
if response.tool_call is not None:
for tool in response.tool_call.function_calls:
tool_response = FUNCTION_MAP[tool.name](**tool.args)
logger.info(tool_response)
await self.session.send(
input=tool_response, end_of_turn=True
)
await asyncio.sleep(0.1)
# Clear queue on turn completion
while not self.audio_in_queue.empty():
self.audio_in_queue.get_nowait()
except Exception as e:
logger.error(f"Error receiving audio: {e}")
await asyncio.sleep(0.1)
async def play_audio(self) -> None:
"""Play received audio through output device."""
try:
pya = pyaudio.PyAudio()
stream = await asyncio.to_thread(
pya.open,
format=self.audio_config.format,
channels=self.audio_config.channels,
rate=self.audio_config.receive_sample_rate,
output=True,
)
while True:
bytestream = await self.audio_in_queue.get()
await asyncio.to_thread(stream.write, bytestream)
except Exception as e:
logger.error(f"Error playing audio: {e}")
if "stream" in locals():
stream.close()
async def run(self) -> None:
"""Main execution loop."""
try:
async with (
self.client.aio.live.connect(
model=self.model_config.name,
config={
"system_instruction": self.model_config.system_instruction,
"tools": self.model_config.tools,
"generation_config": self.model_config.generation_config,
},
) as session,
asyncio.TaskGroup() as tg,
):
self.session = session
self.audio_in_queue = asyncio.Queue()
self.out_queue = asyncio.Queue(maxsize=5)
if self.instruction_audio:
self.input_audio_file(file_path=self.instruction_audio)
tasks = [
tg.create_task(self.send_text()),
tg.create_task(self.send_realtime()),
tg.create_task(self.listen_audio()),
tg.create_task(self.receive_audio()),
tg.create_task(self.play_audio()),
]
await tasks[0] # Wait for send_text to complete
raise asyncio.CancelledError("User requested exit")
except asyncio.CancelledError:
logger.info("Shutting down...")
except Exception as e:
logger.error(f"Error in main loop: {e}")
logger.debug(traceback.format_exc())
finally:
if self.audio_stream:
self.audio_stream.close()
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