examples(foundational): support multiple transports

examples/foundational/40-aws-nova-sonic.py

@@ -14,16 +14,14 @@ from loguru import logger
 from pipecat.adapters.schemas.function_schema import FunctionSchema
 from pipecat.adapters.schemas.tools_schema import ToolsSchema
 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.processors.aggregators.openai_llm_context import OpenAILLMContext
 from pipecat.services.aws_nova_sonic import AWSNovaSonicLLMService
 from pipecat.services.llm_service import FunctionCallParams
-from pipecat.transports.base_transport import TransportParams
-from pipecat.transports.network.small_webrtc import SmallWebRTCTransport
-from pipecat.transports.network.webrtc_connection import SmallWebRTCConnection
+from pipecat.transports.base_transport import BaseTransport, TransportParams
+from pipecat.transports.services.daily import DailyParams
 
 # Load environment variables
 load_dotenv(override=True)
@@ -62,20 +60,25 @@ weather_function = FunctionSchema(
 tools = ToolsSchema(standard_tools=[weather_function])
 
 
-async def run_bot(webrtc_connection: SmallWebRTCConnection, _: argparse.Namespace):
-    logger.info(f"Starting bot")
+# We store functions so objects (e.g. SileroVADAnalyzer) don't get
+# instantiated. The function will be called when the desired transport gets
+# selected.
+transport_params = {
+    "daily": lambda: DailyParams(
+        audio_in_enabled=True,
+        audio_out_enabled=True,
+        vad_analyzer=SileroVADAnalyzer(),
+    ),
+    "webrtc": lambda: TransportParams(
+        audio_in_enabled=True,
+        audio_out_enabled=True,
+        vad_analyzer=SileroVADAnalyzer(),
+    ),
+}
 
-    # Initialize the SmallWebRTCTransport with the connection
-    transport = SmallWebRTCTransport(
-        webrtc_connection=webrtc_connection,
-        params=TransportParams(
-            audio_in_enabled=True,
-            audio_in_sample_rate=16000,
-            audio_out_enabled=True,
-            camera_in_enabled=False,
-            vad_analyzer=SileroVADAnalyzer(params=VADParams(stop_secs=0.8)),
-        ),
-    )
+
+async def run_example(transport: BaseTransport, _: argparse.Namespace):
+    logger.info(f"Starting bot")
 
     # Specify initial system instruction.
     # HACK: note that, for now, we need to inject a special bit of text into this instruction to
@@ -156,6 +159,7 @@ async def run_bot(webrtc_connection: SmallWebRTCConnection, _: argparse.Namespac
     @transport.event_handler("on_client_disconnected")
     async def on_client_disconnected(transport, client):
         logger.info(f"Client disconnected")
+        await task.cancel()
 
     @transport.event_handler("on_client_closed")
     async def on_client_closed(transport, client):
@@ -170,4 +174,4 @@ async def run_bot(webrtc_connection: SmallWebRTCConnection, _: argparse.Namespac
 if __name__ == "__main__":
     from run import main
 
-    main()
+    main(run_example, transport_params=transport_params)