Merge pull request #151 from babblevoice/getchannel-transcribe

Add node getchannel(uuid) + transcribe command for audio tap

Author: tinpotnick

lib/node.js

@@ -25,7 +25,12 @@ const channelmap = {
   "play": ( chan, msg ) => chan.play( msg.soup ),
   "record": ( chan, msg ) => chan.record( msg.options ),
   "playrecord": ( chan, msg ) => chan.playrecord( msg.options ),
-  "direction": ( chan, msg ) => chan.direction( msg.options )
+  "direction": ( chan, msg ) => chan.direction( msg.options ),
+  /* "transcribe" carries no channel action of its own - it is consumed by the
+     node's pre hook (the consumer registers a token->channel binding and taps
+     audio itself via getchannel() + createReadStream). Registered here as a
+     no-op so the framework acknowledges it rather than replying "Unknown method". */
+  "transcribe": () => {}
 }
 
 /**
@@ -313,6 +318,18 @@ class rtpnode {
     this._post = this._defaulthandler.bind( this )
   }
 
+  /**
+   * @summary Look up a live channel object by its uuid.
+   * Channels are created by the node when the server sends an "open" command
+   * and stored in the module-level map. This exposes them to pre/post hooks
+   * (e.g. to tap audio with channel.createReadStream for live transcription).
+   * @param { string } uuid - our channel uuid
+   * @returns { object | undefined } the channel object, or undefined if unknown
+   */
+  getchannel( uuid ) {
+    return channels.get( uuid )
+  }
+
   /**
    * @summary Connect to a server.
    * @param {string} host

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@babblevoice/projectrtp",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "A scalable Node addon RTP server",
   "main": "index.js",
   "directories": {