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Preventing a race condition in the InterruptibleTTSServices in cases where run_tts has been invoked but the BotStartedSpeakingFrame has not yet been received.

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filipi87
2026-03-26 10:39:44 -03:00
parent f7ec6befe1
commit df602b900d
1 changed files with 14 additions and 0 deletions
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14
src/pipecat/services/tts_service.py
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@@ -1509,6 +1509,20 @@ class InterruptibleTTSService(WebsocketTTSService):
await self._disconnect() await self._disconnect()
await self._connect() await self._connect()
async def push_frame(self, frame: Frame, direction: FrameDirection = FrameDirection.DOWNSTREAM):
"""Push a frame downstream with TTS-specific handling.
Args:
frame: The frame to push.
direction: The direction to push the frame.
"""
# This prevents a race condition in cases where run_tts has been invoked but the
# BotStartedSpeakingFrame has not yet been received, which could allow stale audio to leak through.
if isinstance(frame, TTSStartedFrame):
self._bot_speaking = True
await super().push_frame(frame, direction)
async def process_frame(self, frame: Frame, direction: FrameDirection): async def process_frame(self, frame: Frame, direction: FrameDirection):
"""Process frames with bot speaking state tracking. """Process frames with bot speaking state tracking.