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PipelineTask: add new started/stopped/ended/cancelled events

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This commit is contained in:
Aleix Conchillo Flaqué
2025-05-17 22:46:22 -07:00
parent deb43df0a4
commit d5ebc883b3
3 changed files with 90 additions and 5 deletions
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35
src/pipecat/pipeline/task.py
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@@ -144,7 +144,26 @@ class PipelineTask(BaseTask):
`LLMFullResponseEndFrame` are received within `idle_timeout_secs`.
@task.event_handler("on_idle_timeout")
async def on_idle_timeout(task):
async def on_pipeline_idle_timeout(task):
...
There are also events to know if a pipeline has been started, stopped, ended
or cancelled.
@task.event_handler("on_pipeline_started")
async def on_pipeline_started(task, frame: StartFrame):
...
@task.event_handler("on_pipeline_stopped")
async def on_pipeline_stopped(task, frame: StopFrame):
...
@task.event_handler("on_pipeline_ended")
async def on_pipeline_ended(task, frame: EndFrame):
...
@task.event_handler("on_pipeline_cancelled")
async def on_pipeline_cancelled(task, frame: CancelFrame):
...
Args:
@@ -264,6 +283,10 @@ class PipelineTask(BaseTask):
self._register_event_handler("on_frame_reached_upstream")
self._register_event_handler("on_frame_reached_downstream")
self._register_event_handler("on_idle_timeout")
self._register_event_handler("on_pipeline_started")
self._register_event_handler("on_pipeline_stopped")
self._register_event_handler("on_pipeline_ended")
self._register_event_handler("on_pipeline_cancelled")
@property
def params(self) -> PipelineParams:
@@ -552,8 +575,16 @@ class PipelineTask(BaseTask):
if isinstance(frame, self._reached_downstream_types):
await self._call_event_handler("on_frame_reached_downstream", frame)
if isinstance(frame, (EndFrame, StopFrame)):
if isinstance(frame, StartFrame):
await self._call_event_handler("on_pipeline_started", frame)
elif isinstance(frame, EndFrame):
await self._call_event_handler("on_pipeline_ended", frame)
self._pipeline_end_event.set()
elif isinstance(frame, StopFrame):
await self._call_event_handler("on_pipeline_stopped", frame)
self._pipeline_end_event.set()
elif isinstance(frame, CancelFrame):
await self._call_event_handler("on_pipeline_cancelled", frame)
elif isinstance(frame, HeartbeatFrame):
await self._heartbeat_queue.put(frame)
self._down_queue.task_done()