89c63891fa
Replace all instances of the legacy product names "Kon" and "Corbie" with "Magnotia" across user-facing copy, code identifiers, package names, bundle ids, file paths, and documentation. Preserves the unrelated "konsole" (KDE terminal) reference and the parent CORBEL company name. - Renames 10 Rust crates (kon-* → magnotia-*) and the tauri binary - Updates package.json, tauri.conf.json (productName + identifier) - Renames CSS classes (kon-rh-* → magnotia-rh-*) and animations - Renames brand and roadmap docs - Regenerates Cargo.lock and package-lock.json Verified: svelte-check passes; pure-rust crates compile under new names.
62 lines
2.3 KiB
Rust
62 lines
2.3 KiB
Rust
//! Engine-abstraction trait for speech-to-text backends.
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//!
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//! Replaces the previous `SpeechBackend` enum so new backends
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//! (Moonshine, whisper-rs forks, cloud ASR shims, Windows non-AVX2
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//! fallbacks) can drop in without adding a match arm in `LocalEngine`.
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//!
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//! Concrete implementers today: `SpeechModelAdapter` (wraps any
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//! `transcribe-rs` model, currently used for Parakeet) and — behind the
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//! `whisper` feature — `WhisperRsBackend` (direct whisper-rs, the only
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//! path that pipes `initial_prompt`).
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use magnotia_core::error::Result;
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use magnotia_core::types::{Segment, TranscriptionOptions};
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/// Static capabilities a `Transcriber` advertises to callers.
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///
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/// `sample_rate` is load-bearing for the progressive WAV writer (#19)
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/// which writes live capture samples to disk at the transcriber's
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/// native rate. `supports_initial_prompt` lets the Settings surface
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/// hide the initial-prompt field for backends that ignore it (Parakeet
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/// today).
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub struct TranscriberCapabilities {
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pub sample_rate: u32,
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pub channels: u16,
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pub supports_initial_prompt: bool,
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}
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/// Unified interface for speech-to-text backends.
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///
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/// `Send` is a supertrait so `Box<dyn Transcriber + Send>` travels
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/// across `spawn_blocking` boundaries without a per-site bound. All
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/// inference is synchronous — async callers wrap a `tokio::spawn_blocking`
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/// around `transcribe_sync`.
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pub trait Transcriber: Send {
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fn capabilities(&self) -> TranscriberCapabilities;
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/// Synchronously transcribe 16 kHz mono f32 PCM (or whatever the
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/// backend's `capabilities().sample_rate` declares). `&mut self` so
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/// backends that keep per-call scratch state (whisper-rs's
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/// `WhisperState`, Parakeet's decoder buffers) can mutate them
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/// without interior-mutability gymnastics.
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fn transcribe_sync(
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&mut self,
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samples: &[f32],
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options: &TranscriptionOptions,
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) -> Result<Vec<Segment>>;
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn transcriber_trait_is_object_safe() {
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// Compile-time witness: if the trait stops being object-safe
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// (e.g. someone adds a generic method or a Self-returning
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// method) this declaration fails to build. No runtime work.
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let _: Option<Box<dyn Transcriber + Send>> = None;
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}
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}
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