class AudioCaptureProcessor extends AudioWorkletProcessor {
  process(inputs, outputs, parameters) {
    const input = inputs[0];
    if (input && input.length > 0 && input[0].length > 0) {
      const samples = input[0]; // Float32Array, mono channel
      const int16 = new Int16Array(samples.length);
      for (let i = 0; i < samples.length; i++) {
        const s = Math.max(-1, Math.min(1, samples[i]));
        int16[i] = s < 0 ? s * 0x8000 : s * 0x7FFF;
      }
      this.port.postMessage(int16.buffer, [int16.buffer]);
    }
    return true;
  }
}

registerProcessor('audio-capture-processor', AudioCaptureProcessor);