examples(foundational): support multiple transports

examples/foundational/18-gstreamer-filesrc.py

@@ -13,26 +13,35 @@ from pipecat.pipeline.pipeline import Pipeline
 from pipecat.pipeline.runner import PipelineRunner
 from pipecat.pipeline.task import PipelineTask
 from pipecat.processors.gstreamer.pipeline_source import GStreamerPipelineSource
-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_dotenv(override=True)
 
 
-async def run_bot(webrtc_connection: SmallWebRTCConnection, args: argparse.Namespace):
-    logger.info(f"Starting bot with video input: {args.input}")
+# 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_out_enabled=True,
+        video_out_enabled=True,
+        video_out_is_live=True,
+        video_out_width=1280,
+        video_out_height=720,
+    ),
+    "webrtc": lambda: TransportParams(
+        audio_out_enabled=True,
+        video_out_enabled=True,
+        video_out_is_live=True,
+        video_out_width=1280,
+        video_out_height=720,
+    ),
+}
 
-    transport = SmallWebRTCTransport(
-        webrtc_connection=webrtc_connection,
-        params=TransportParams(
-            audio_out_enabled=True,
-            video_out_enabled=True,
-            video_out_is_live=True,
-            video_out_width=1280,
-            video_out_height=720,
-        ),
-    )
+
+async def run_example(transport: BaseTransport, args: argparse.Namespace):
+    logger.info(f"Starting bot with video input: {args.input}")
 
     gst = GStreamerPipelineSource(
         pipeline=f"filesrc location={args.input}",
@@ -62,4 +71,4 @@ if __name__ == "__main__":
     parser = argparse.ArgumentParser(description="Pipecat Bot Runner")
     parser.add_argument("-i", "--input", type=str, required=True, help="Input video file")
 
-    main(parser)
+    main(run_example, parser=parser, transport_params=transport_params)