// Copyright (c) 2016 The Regents of the University of California.
// All rights reserved.
// Permission is hereby granted, without written agreement and without
// license or royalty fees, to use, copy, modify, and distribute this
// software and its documentation for any purpose, provided that the above
// copyright notice and the following two paragraphs appear in all copies
// of this software.
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
// ENHANCEMENTS, OR MODIFICATIONS.
/**
* @accessor audioIo/AudioIoCapture
* @author Ilya Y. Rostovtsev
* @version $$Id$$
*/
// Stop extra messages from jslint. Note that there should be no
// space between the / and the * and global.
/*global console, exports, require */
/*jshint globalstrict: true */
"use strict";
var audio, recording, triggerHandler;
audio = require('audio-io');
triggerHandler = null;
recording = false;
exports.record = function () {
console.log("record funciton triggered...");
recording = !recording;
console.log("recording is " + recording);
if (recording === true) {
console.log("passing onData callback to audio.capture");
audio.capture(this.exports.onData.bind(this));
} else {
console.log("passing a null callback to audio.capture");
audio.capture(null);
}
};
exports.setup = function () {
console.log("Audio Capture Setup");
this.parameter('numInputChannels', {
type: 'number',
value: 1
});
this.parameter('samplingRate', {
type: 'number',
value: 44100
});
this.parameter('blockSize', {
type: 'number',
value: 512
});
this.input('trigger');
this.output('signal');
};
exports.onData = function (audioVector) {
this.send('signal', audioVector);
};
exports.initialize = function () {
console.log("Audio Capture Initialize... Initializing...");
console.log("Number Input Channels : " + this.getParameter('numInputChannels'));
console.log("Sampling Rate : " + this.getParameter('samplingRate'));
console.log("Block Size : " + this.getParameter('blockSize'));
audio.initialize(this.getParameter('numInputChannels'), 0, this.getParameter('samplingRate'), this.getParameter('blockSize'));
console.log("Registering the trigger handler for 'trigger'");
triggerHandler = this.addInputHandler('trigger', this.exports.record.bind(this));
recording = false;
};
exports.wrapup = function () {
console.log("Audio Capture Wrapup");
audio.wrapup();
this.removeInputHandler('trigger', triggerHandler);
};