Merge pull request #1002 from pipecat-ai/mb/add-on-error-callback

Register the on_error handler

src/pipecat/transports/services/daily.py

@@ -27,6 +27,7 @@ from pipecat.audio.vad.vad_analyzer import VADAnalyzer, VADParams
 from pipecat.frames.frames import (
     CancelFrame,
     EndFrame,
+    ErrorFrame,
     Frame,
     InputAudioRawFrame,
     InterimTranscriptionFrame,
@@ -921,6 +922,7 @@ class DailyTransport(BaseTransport):
         # these handlers.
         self._register_event_handler("on_joined")
         self._register_event_handler("on_left")
+        self._register_event_handler("on_error")
         self._register_event_handler("on_app_message")
         self._register_event_handler("on_call_state_updated")
         self._register_event_handler("on_dialin_connected")
@@ -1035,9 +1037,17 @@ class DailyTransport(BaseTransport):
         await self._call_event_handler("on_left")
 
     async def _on_error(self, error):
-        # TODO(aleix): Report error to input/output transports. The one managing
-        # the client should report the error.
-        pass
+        await self._call_event_handler("on_error", error)
+        # Push error frame to notify the pipeline
+        error_frame = ErrorFrame(error)
+
+        if self._input:
+            await self._input.push_error(error_frame)
+        elif self._output:
+            await self._output.push_error(error_frame)
+        else:
+            logger.error("Both input and output are None while trying to push error")
+            raise RuntimeError("No valid input or output channel to push error")
 
     async def _on_app_message(self, message: Any, sender: str):
         if self._input: