fix: add logging and error handling for issue #721 (#755)

src/pipecat/processors/frame_processor.py

@@ -6,10 +6,11 @@
 
 import asyncio
 import inspect
-
 from enum import Enum
 from typing import Awaitable, Callable, Optional
 
+from loguru import logger
+
 from pipecat.clocks.base_clock import BaseClock
 from pipecat.frames.frames import (
     EndFrame,
@@ -24,8 +25,6 @@ from pipecat.metrics.metrics import LLMTokenUsage, MetricsData
 from pipecat.processors.metrics.frame_processor_metrics import FrameProcessorMetrics
 from pipecat.utils.utils import obj_count, obj_id
 
-from loguru import logger
-
 
 class FrameDirection(Enum):
     DOWNSTREAM = 1
@@ -220,11 +219,16 @@ class FrameProcessor:
     #
 
     async def _start_interruption(self):
-        # Cancel the push frame task. This will stop pushing frames downstream.
-        await self.__cancel_push_task()
+        try:
+            # Cancel the push frame task. This will stop pushing frames downstream.
+            await self.__cancel_push_task()
 
-        # Cancel the input task. This will stop processing queued frames.
-        await self.__cancel_input_task()
+            # Cancel the input task. This will stop processing queued frames.
+            await self.__cancel_input_task()
+        except Exception as e:
+            logger.exception(f"Uncaught exception in {self}: {e}")
+            await self.push_error(ErrorFrame(str(e)))
+            raise
 
         # Create a new input queue and task.
         self.__create_input_task()
@@ -281,7 +285,11 @@ class FrameProcessor:
 
                 self.__input_queue.task_done()
             except asyncio.CancelledError:
+                logger.trace(f"Cancelled input task in {self}")
                 break
+            except Exception as e:
+                logger.exception(f"Uncaught exception in {self}: {e}")
+                await self.push_error(ErrorFrame(str(e)))
 
     def __create_push_task(self):
         self.__push_queue = asyncio.Queue()
@@ -300,7 +308,11 @@ class FrameProcessor:
                 running = not isinstance(frame, EndFrame)
                 self.__push_queue.task_done()
             except asyncio.CancelledError:
+                logger.trace(f"Cancelled push task in {self}")
                 break
+            except Exception as e:
+                logger.exception(f"Uncaught exception in {self}: {e}")
+                await self.push_error(ErrorFrame(str(e)))
 
     async def _call_event_handler(self, event_name: str, *args, **kwargs):
         try: