Module realtime 

Real-time audio output via cpal. Lock-free SPSC ring buffer path only.

Structs

AudioDeviceInfo

Information about an available audio output device.

FeederBundle

Send half of a split PlaybackHandle. Owns the producer plus all the metadata flags. Move this into the audio feeder thread.

PlaybackHandle

Owns a real-time audio playback resource.

StreamKeeper

!Send half of a split PlaybackHandle. Owns the cpal::Stream. Must stay on the thread that called start_playback_lockfree, OR be Box::leak’d if you need cross-thread reconnect.

Functions

list_output_devices

Enumerate all available audio output devices with their supported configs.

null_playback

Silent fallback handle for when no audio device is available. Mixer math and IPC still run; nothing reaches speakers. App stays alive.

start_headphone_output

Start headphone/booth output on a second audio device. Returns None if no second device is available (graceful fallback). The feeder thread pushes headphone_mix samples to the returned producer.

start_playback_lockfree

Start real-time audio playback using a lock-free SPSC ring buffer.

start_playback_lockfree_with_error_flag

Inner implementation that optionally accepts an existing error flag for reconnect scenarios.