pipeline(task): cleanup Sink processor

Fixes #953

CHANGELOG.md

@@ -20,13 +20,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added `enable_prejoin_ui`, `max_participants` and `start_video_off` params
   to `DailyRoomProperties`.
 
-- Added `session_timeout` to `FastAPIWebsocketTransport` and `WebsocketServerTransport`
-  for configuring session timeouts (in seconds). Triggers `on_session_timeout` for custom timeout handling.
+- Added `session_timeout` to `FastAPIWebsocketTransport` and
+  `WebsocketServerTransport` for configuring session timeouts (in
+  seconds). Triggers `on_session_timeout` for custom timeout handling.
   See [examples/websocket-server/bot.py](https://github.com/pipecat-ai/pipecat/blob/main/examples/websocket-server/bot.py).
 
-- Added the new modalities option and helper function to set Gemini output modalities.
+- Added the new modalities option and helper function to set Gemini output
+  modalities.
 
-- Added `examples/foundational/26d-gemini-multimodal-live-text.py` which is using Gemini as TEXT modality and using another TTS provider for TTS process.
+- Added `examples/foundational/26d-gemini-multimodal-live-text.py` which is
+  using Gemini as TEXT modality and using another TTS provider for TTS process.
 
 ### Changed
 
@@ -34,14 +37,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Changed the default model for `PlayHTHttpTTSService` to `Play3.0-mini-http`.
 
-- api_key, aws_access_key_id and region are no longer required parameters for the PollyTTSService (AWSTTSService)
+- `api_key`, `aws_access_key_id` and `region` are no longer required parameters
+  for the PollyTTSService (AWSTTSService)
 
-- Added `session_timeout` example in `examples/websocket-server/bot.py` to handle session timeout event.
+- Added `session_timeout` example in `examples/websocket-server/bot.py` to
+  handle session timeout event.
 
-- Changed `InputParams` in `src/pipecat/services/gemini_multimodal_live/gemini.py` to support different modalities.
+- Changed `InputParams` in
+  `src/pipecat/services/gemini_multimodal_live/gemini.py` to support different
+  modalities.
 
 ### Fixed
 
+- Fixed a `PipelineTask` issue that would cause a dangling task after stopping
+  the pipeline with an `EndFrame`.
+
 - Fixed an import issue for `PlayHTHttpTTSService`.
 
 - Fixed an issue where languages couldn't be used with the `PlayHTHttpTTSService`.
@@ -49,7 +59,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed an issue where `OpenAIRealtimeBetaLLMService` audio chunks were hitting
   an error when truncating audio content.
 
-- Fixed an issue where setting the voice and model for `RimeHttpTTSService` wasn't working.
+- Fixed an issue where setting the voice and model for `RimeHttpTTSService`
+  wasn't working.
 
 ## [0.0.52] - 2024-12-24
 

src/pipecat/pipeline/task.py

@@ -180,6 +180,7 @@ class PipelineTask:
         if should_cleanup:
             await self._source.cleanup()
             await self._pipeline.cleanup()
+            await self._sink.cleanup()
         # We just enqueue None to terminate the task gracefully.
         self._process_up_task.cancel()
         await self._process_up_task