ensure playback_segments_count is consistent in the audio output chain #4211
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theomonnom
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Dec 9, 2025
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lgtm! So our pattern breaks if one of the nodes in the output chain decides not to forward audio to the next node (for whatever reason)
I thought this pattern was supposed to work — ideally, we should make it work.
meetakshay99
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Dec 12, 2025
* main: (267 commits) AGT-2328: negative threshold in silero (livekit#4228) disable interruptions for agent greeting (livekit#4223) feature: GPT-5.2 support (livekit#4235) turn-detector: remove english model from readme (livekit#4233) add keep alive task for liveavatar plugin (livekit#4231) feat(warm-transfer): add sip_number parameter for outbound caller ID (livekit#4216) fix blocked send task in liveavatar plugin (livekit#4214) clear _q_updated right after await to avoid race conditions (livekit#4209) ensure playback_segments_count is consistent in the audio output chain (livekit#4211) fix inworld punctuation handling (livekit#4215) Inference: Rename fallback model name param (livekit#4202) fix race condition when stop background audio play handle (livekit#4197) fix watchfiles prevent agent prcoess exit on sigterm (livekit#4194) feat(google): add streaming support for Gemini TTS models (livekit#4189) Add LiveAvatar Stop Session API Call + README Fix (livekit#4195) Fallback API for Inference (livekit#4099) feat(rime): expand update_options to accept all TTS parameters (livekit#4095) mistralai models update (livekit#4156) fix record.exc_info is not pickable when using LogQueueHandler (livekit#4185) Restore otel chat message (livekit#4118) ...
This was referenced Dec 20, 2025
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when
next_in_chainis set inAudioOutput,await self.next_in_chain.capture_frame(frame)should be called beforeawait super().capture_frame(frame)(in case the capture_frame of next_in_chain is waiting for some conditions) to make sure the audio outputs in the chain have the same playback_segments_count.this fixes the issue when the agent has a greeting message using session.say or session.generate_reply in Agent.on_enter (or just after session started), it will stuck when closing if no participant joined the room.