claude-code with OpenAI mode fix

packages/audio-capture-napi/package.json

@@ -0,0 +1,8 @@
+{
+    "name": "audio-capture-napi",
+    "version": "1.0.0",
+    "private": true,
+    "type": "module",
+    "main": "./src/index.ts",
+    "types": "./src/index.ts"
+}

packages/audio-capture-napi/src/index.ts

@@ -0,0 +1,151 @@
+// audio-capture-napi: cross-platform audio capture using SoX (rec) on macOS
+// and arecord (ALSA) on Linux. Replaces the original cpal-based native module.
+
+import { type ChildProcess, spawn, spawnSync } from 'child_process'
+
+// ─── State ───────────────────────────────────────────────────────────
+
+let recordingProcess: ChildProcess | null = null
+let availabilityCache: boolean | null = null
+
+// ─── Helpers ─────────────────────────────────────────────────────────
+
+function commandExists(cmd: string): boolean {
+  const result = spawnSync(cmd, ['--version'], {
+    stdio: 'ignore',
+    timeout: 3000,
+  })
+  return result.error === undefined
+}
+
+// ─── Public API ──────────────────────────────────────────────────────
+
+/**
+ * Check whether a supported audio recording command is available.
+ * Returns true if `rec` (SoX) is found on macOS, or `arecord` (ALSA) on Linux.
+ * Windows is not supported and always returns false.
+ */
+export function isNativeAudioAvailable(): boolean {
+  if (availabilityCache !== null) {
+    return availabilityCache
+  }
+
+  if (process.platform === 'win32') {
+    availabilityCache = false
+    return false
+  }
+
+  if (process.platform === 'darwin') {
+    // macOS: use SoX rec
+    availabilityCache = commandExists('rec')
+    return availabilityCache
+  }
+
+  if (process.platform === 'linux') {
+    // Linux: prefer arecord, fall back to rec
+    availabilityCache = commandExists('arecord') || commandExists('rec')
+    return availabilityCache
+  }
+
+  availabilityCache = false
+  return false
+}
+
+/**
+ * Check whether a recording is currently in progress.
+ */
+export function isNativeRecordingActive(): boolean {
+  return recordingProcess !== null && !recordingProcess.killed
+}
+
+/**
+ * Stop the active recording process, if any.
+ */
+export function stopNativeRecording(): void {
+  if (recordingProcess) {
+    const proc = recordingProcess
+    recordingProcess = null
+    if (!proc.killed) {
+      proc.kill('SIGTERM')
+    }
+  }
+}
+
+/**
+ * Start recording audio. Raw PCM data (16kHz, 16-bit signed, mono) is
+ * streamed via the onData callback. onEnd is called when recording stops
+ * (either from silence detection or process termination).
+ *
+ * Returns true if recording started successfully, false otherwise.
+ */
+export function startNativeRecording(
+  onData: (data: Buffer) => void,
+  onEnd: () => void,
+): boolean {
+  // Don't start if already recording
+  if (isNativeRecordingActive()) {
+    stopNativeRecording()
+  }
+
+  if (!isNativeAudioAvailable()) {
+    return false
+  }
+
+  let child: ChildProcess
+
+  if (process.platform === 'darwin' || (process.platform === 'linux' && commandExists('rec'))) {
+    // Use SoX rec: output raw PCM 16kHz 16-bit signed mono to stdout
+    child = spawn(
+      'rec',
+      [
+        '-q',           // quiet
+        '--buffer',
+        '1024',         // small buffer for low latency
+        '-t', 'raw',    // raw PCM output
+        '-r', '16000',  // 16kHz sample rate
+        '-e', 'signed', // signed integer encoding
+        '-b', '16',     // 16-bit
+        '-c', '1',      // mono
+        '-',            // output to stdout
+      ],
+      { stdio: ['pipe', 'pipe', 'pipe'] },
+    )
+  } else if (process.platform === 'linux' && commandExists('arecord')) {
+    // Use arecord: output raw PCM 16kHz 16-bit signed LE mono to stdout
+    child = spawn(
+      'arecord',
+      [
+        '-f', 'S16_LE', // signed 16-bit little-endian
+        '-r', '16000',  // 16kHz sample rate
+        '-c', '1',      // mono
+        '-t', 'raw',    // raw PCM, no header
+        '-q',           // quiet
+        '-',            // output to stdout
+      ],
+      { stdio: ['pipe', 'pipe', 'pipe'] },
+    )
+  } else {
+    return false
+  }
+
+  recordingProcess = child
+
+  child.stdout?.on('data', (chunk: Buffer) => {
+    onData(chunk)
+  })
+
+  // Consume stderr to prevent backpressure
+  child.stderr?.on('data', () => {})
+
+  child.on('close', () => {
+    recordingProcess = null
+    onEnd()
+  })
+
+  child.on('error', () => {
+    recordingProcess = null
+    onEnd()
+  })
+
+  return true
+}