Function delta_payload

perro_source/audio_stack/perro_pawdio/src/mic.rs:281–292

(samples: &[i16], channels: u16)

        ));
    }
    let mut samples = Vec::with_capacity(expected_samples);
    for chunk in payload.chunks_exact(2) {
        samples.push(i16::from_le_bytes([chunk[0], chunk[1]]));
    }
    Ok(samples)
}

fn checked_sample_len(frames: usize, channels: u16) -> Result<usize, String> {
    let len = frames
        .checked_mul(channels as usize)
        .ok_or_else(|| "mic clip sample len overflow".to_string())?;
    if len > PMIC_MAX_SAMPLES {
        return Err(format!(
            "mic clip sample len {len} exceeds limit {PMIC_MAX_SAMPLES}"
        ));