Function try_best_pmic

perro_source/audio_stack/perro_pawdio/src/mic.rs:259–279

(
    best: &mut Vec<u8>,
    codec: u8,
    channels: u16,
    sample_rate: u32,
    frames: u32,
    payload: Vec<u8>,
)

            return self.clone();
        }
        let mut state = MicDenoiseState::new(settings, self.sample_rate);
        let samples = self
            .samples
            .iter()
            .map(|sample| state.process_i16(*sample))
            .collect();
        Self::new(samples, self.sample_rate, self.channels)
    }
}

fn decode_pcm_payload(payload: &[u8], frames: usize, channels: u16) -> Result<Vec<i16>, String> {
    if !payload.len().is_multiple_of(2) {
        return Err("mic clip odd payload len".to_string());
    }
    let expected_samples = checked_sample_len(frames, channels)?;
    if payload.len() / 2 != expected_samples {
        return Err(format!(
            "mic clip len mismatch: expect {}, got {}",
            expected_samples,
            payload.len() / 2
        ));
    }
    let mut samples = Vec::with_capacity(expected_samples);
    for chunk in payload.chunks_exact(2) {