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CpalAudioSource

omni_dev::voice::audio

Struct CpalAudioSource 

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pub struct CpalAudioSource { /* private fields */ }
Expand description

Production AudioSource backed by a cpal input stream.

Opens the default input device (or the named device matching --device), builds a stream at the device’s default config, and feeds the f32-coerced samples through a lock-free SPSC ring buffer to the consumer side. The cpal callback runs on cpal’s own audio thread and must never block; resampling/idle detection/writing all happen on the consumer side.

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impl CpalAudioSource

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pub fn new(device_name: Option<&str>) -> Result<Self>

Opens the default input device (or the device matching device_name, if provided) and starts a stream at its native rate and channel count.

device_name matching is exact (case-sensitive) against Device::name() — cpal reports platform-native names which differ across macOS/Linux/Windows, so users get an error listing every detected device when no match is found.

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impl AudioSource for CpalAudioSource

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fn next_chunk(&mut self) -> Option<Vec<f32>>

Returns the next chunk of interleaved samples, or None when the source is exhausted.
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fn sample_rate(&self) -> u32

The source’s sample rate in Hz.
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fn channels(&self) -> u16

Channel count (1 = mono, 2 = stereo, …).

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